An hour on this bicycle will give your house enough power for 24 hours


258 Comments on An hour on this bicycle will give your house enough power for 24 hours

  1. I’ve often wondered why gyms don’t harness their stationary bikes and other equipment to collect “free” electricity from their customer’s workouts. But you’re kidding yourself if you think that one hour of exercise a day will power your house for 24 hours. Do the math. If you consume 2000 calories a day, that’s equivalent to 8374 Watt-seconds (see ). Divide by 60 twice (seconds to minutes to hours). Divide by 1000 (Watt hours to kilowatt hours) and you get…

    0.002 kWh.

    Enough power to run a microwave oven for eight seconds.

  2. Not right, Scott. When we talk about food, we’re talking about Calories (big C), which are actually kilocalories (small c). You’re off by a factor of 2000.

  3. Right you are. (It’s been a LONG time since I studied those things…) Anyway, cross-out my last “Divide by 1000” step, and the number becomes 2.32 kilowatt hours, which – while a significant amount of power – is still not going to make much of a dent in a typical home’s power consumption. Especially since that’s for a full day’s worth of food intake! Scale it back to about 500 Calories for an hour of exercise, you’re now down to 0.6 kilowatt hours – or about a third of the electricity needed to run a house for 24 hours…
    …in Nigeria.
    (in the USA, not quite a half hour.)

  4. I have had the idea about the gyms for awhile now. You could record how much electricity a member generates, then deduct a corresponding amount off their dues as incentive.

  5. But to think that living our current humongously electrically-wasteful ways will be supported by such a progressive, but currently limited, method of generating electricity for storage, is a complete fallacy. People today have no clue about living with minimal electricity, NO CLUE. It’s the same with water, but that is another post/time. What is reasonable, is one or two lights on at night, maybe using the modern technology of LED-lighting would extend the number of light sources, running a fan, a blender or even a washing machine, but to use electrical-gulping appliances like microwaves, radiant heating, electrical cook stoves is out of the picture entirely.
    We have been unconscious users and wasters of electricity and water for the total period of late-modern man, with perhaps the exception of the late 1800’s. A big reality check is coming.

  6. Actually you are not far off. A professional athlete can maintain a power of 5-600 Watts for an hour. For the average Joe this is more in the order of 100 Watts. 100 Watts for an hour makes 0.1 kWh, or enough to run your microwave for 6 minutes. This is without accounting for loss, so the actual figure is probabl closer to 1 or 2 minutes.

  7. You can produce 100-200 Watts on a spinning-bike, but for one hour you would get 0.2 kWh maximum. Enough to power two LED-lightbulbs for 24 hours. Not more, and you probably need at least 2 kWh for heating the water used for showering your sweaty body…

  8. You folk aer talking about “typical” US households where this inventor is talking about people with energy needs much smaller than us. Of course, the title of the article itself causes one to think that.

  9. So… solar panels, a bike that produces energy, solar hot water, and r 38 insulation in the walls will pretty much drop or offset your consumption by 100 percent.its true I already did I it. Well except for the bike. And I am willing to try though. And I do think that is really the point.

  10. According to the video the machine will generate 1050 watts in an hour of using it. Granted thats still only 1.05 kwh whereas the average home in the US uses approx 30 kwh a day…

  11. Fuck cycling to power your house can’t be assed or have time for that, put a motor on it.

  12. Right? What an absolute bastard. Trying to create something to help less fortunate countries create their own energy. He is such a fucking prick.

  13. BINGO! Title of the article (or maybe it’s the headline, written by someone other than the author) is “An hour on this bicycle will give your house enough power for 24 hours.” I’ve got several CFLs and a few LEDs (and changing more lighting to LEDs as time goes on) – but an hour of riding a bike isn’t going to power my home for 24 hours, unless I’m not there. (And then who will ride the bike?)

  14. Be wary about some of this guy’s overstated claims. This machine costs thousands of dollars and only generates about $5 to $10 of power a day which must be used right away. And how could this have been used during KATRINA. with 4 feet of water in your house?

  15. This charlatan has another hair brained idea to solve California’s drought forever by installing desalination barges offshore which can convert seawater to drinking water but at what cost per gallon? About 50 cents per gallon which is almost $2 million per day just for the Orange County shortfall. He plans to make this process more efficient by 2020. By then California will be a desert like Las Vegas.

  16. Energy can not be generated from thin air unless you have wind turbines using free air like Denmark. He is a charlatan.

  17. It took an Olympic Gold Medal cyclist over 3 minutes on a bike to run a 2 slice toaster. And he was pooped at the end. And he probably burned as many calories as were contained in the toast in the process. Energy can not be created or destroyed merely converted from one form into another. At the end he said: “This is nuts!” While collapsing on the ground.

  18. Calories in food are measured differently than “calories” in physics.

    If I remember correctly the ratio is 100 ‘physics-“calories”‘ to every one metabolic “calorie”

  19. This charlatan has another idea about drilling into the earth’s core to extract energy from the magma found there. But he has no answer how to prevent his drill bits from being destroyed, or how shifts in the earth’s crust can be controlled, or how to prevent these graphene fibers from being ripped apart, stretched or melted. Another PT Barnum in the making. He invented the 5 hour energy drink and has Billions to waste. And waste it he will.

  20. I farm a rural homestead, selling produce for cash to pay the taxes. I have grid electric and use 4 kw hours a day including running a strawbale walk-in cooler for the raspberry harvest season. Our grid electric often goes down, due to the rural nature of things here, and a bicycle that could provide 4kw hours in one hour would save a lot of food and provide more consistent sales.

  21. You are confusing calories (heat) with Calories (chemical) Big C Calorie = 1,000 lower case c calorie. You generate enough power to run a laptop, cable modem and an LED lamp while you are exercising heavily.

  22. I will happily take one for free and write an awesome review about it… haha. No-but-seriously-I-want-this. Props to the guy for wearing a nice shirt and sweater while working out :-). Love this man.

  23. The looming question of course, is how much does one cost? These technical solutions, while admirable, are meaningless in the face of a titled economic system and overwhelming structural violence.

  24. One of the hidden costs in devices used to save energy or produce energy is the energy cost of actually producing the item itself… take a refrigerator that will save you a few Kw a year sure we can calc the cost per Kw and then see the pay off verses purchase cost but thats economics not reflective of the energy cost to produce it? it would be nice to know the energy costs of manufactoring to be able know the point if any the energy savings off sets that cost.

  25. Yes, but don’t forget the initial investment in those generators… the wiring… the storage cells… the maintenance costs… all in all, this pushes the ROI out about 25 years.

  26. 1050 watt-hours? No one has that much stamina. No one…

    100 – 200 watts for an hour? Yes. But that is 100 – 200 watt hours

  27. The fitness guru (now Brick)in dumbo, Brooklyn utilizes spin classes to generate power for the gym. A few years now.

  28. If this guy is such a philanthropic powerhouse then why can’t I buy one of these?

    Yeah, the narcissist that I had never heard of before he bought like all of the advertising time on YouTube last month.

    Don’t get me started on his graphene “inventions”.

  29. You forgot that a calorie (lower case “c”) is not the same as a dietary Calorie or kilocalorie. You would actually generate 8.4*10^6 Watt-seconds. That is, assuming you cycle long enough to burn 2,000 Kcals. ๐Ÿ˜‰

  30. I think if we could generate electricity from mouse clicks on our computer, that eventually all the mouse clicks added together from clicking on click bait on FB could power all developing nations. If you don’t believe me check out buzzfeed….

    Edit: However, I enjoyed the math in the comments…

  31. Most just don’t and more often than not, simply refuse to understand that you cannot create energy. You can only transfer it, generally at a substantial loss.

  32. Many gyms already do this but the bikes barely generate enough power to light up one of the lights in the gym bathroom. At least they arent wasting the energy to the air! Neutopia ecoSolutions inc pays people to find buildings that could use their systems, from $100 to $5000. The Energy Recycling System is the world’s first solution of its kind and guarantees the exact amount recycled and your financial savings prior to investing in a unit too. Every gym in the world could use one and cut their bills as much as 50%, since it makes energy, recycles energy, stores electricity, even makes and stores hot water and ice…plus 100% of their profits go toward social impact projects. Nothing else comes close to fighting climate change, all at zero cst to the building owner!!

  33. well for a 3rd world situation that light means the kids can read and study and better themselves. which they could not otherwise do, so… ROI could be much less if you factor in lost oppertunities.

  34. Humans by nature are lazy and waste everything they have access to of more than what they need to survive, procreate or be comfortable.

    Take for example you wasting electricity to write your post, there is no need for it, because nobody cares, not even you, it’s just a wasteful pastime because your house is not on fire and your refrigerator is not empty.

    Humans only care about what benefits them personally, period. They will not bicycle a generator to give anybody else power, but they will contemplate pedaling a smaller easier one with less effort to power their iPhone so they can Facebook and waste more time. That is if they can’t get their hands on a solar phone charger to make life easier.

    If electricity was this easy and simple to get, the world would be fully powered by now.

    Let me restate that;
    Electricity is this easy and simple to get, it always has been, ever since Faraday and Schwinn showed up, people are just too lazy to burn the calories to get it, especially when they don’t need light to nap away the day.

  35. He plans to run a water pipeline from the desalination barges to Las Vegas to turn the desert into a rain forest and save the planet after he hires all the illegal immigrants who were laid off from the dried up tomato fields to bicycle the generators to run the pumps 24/7

  36. There are gyms in Japan that do exactly that. All the electricity is fueled by the exercise equipment.

  37. it is not the person who has to do all the work. if the fly wheel is big enough it can generate that much power. but not enough to power a house in whole.

  38. How many days will it take to get a mile in a Prius?

    Just wanting to know as this is the crowd who will be buying these to carry in the trunk when they run out of fuel.

  39. If your one hour on the bicycle can charge enough batteries, and your usage isn’t wasteful, then the inverter/converter will convert the 12 volt to 120 volt and supply your house. Of course if a person already has solar panels, then, this bicycle would also make up for cloudy or rainy days and snow in winter.

  40. Flywheels do not generate power, they store it as kinetic energy. So you have a person expending about 150-200 watts of energy to slowly spin up a flywheel and generator to generate electricity which needs to be stored for future use or to even out the load during simultanious useage. You can’t make 1050 watts per hour while expending a 1/5th of that. There is nothing new here, a company in CA sells a similar system where they tie the output together of a bunch of bikes spinning generators to power concerts.

  41. You would be charging a bank of batteries….which, in turn, are providing your house with power…..your peddling alone for that time is not powering the house. Sure, the more power you use, the more power you must recharge….but….in a poor community where everyone contribute their time on the bicycle… would improve greatly.

  42. He isn’t talking about the average home in the US…..he is talking about communities where no one has power at all…..never… in the event that an area of the US finds themselves with no power due to a storm or something. Most of the people he is talking about live in a one or two room home…for that, 1.05 kwh would be more than enough to add a computer to learn and be educated with.

  43. They are free,

    Just put an ad on Craigslist in the wanted for free section for a “Schwinn exercise bicycle” and a “used washing machine”.

    Every other house in America has one of the two in their basement collecting dust they will gladly donate for you to haul off

    Get the generator out of the washing machine and hook it up to the exercise bike and you’re off to the races.

  44. Wow. I have read all of the posts here. I am amazed by how many people are so quick to say something can’t be done or to find fault with a man who is trying to bring one light bulb or one computer to a family with none. What are all of you doing to help other people living with no electricity….beside telling him it can’t be done…..anything? Have you created anything to make lives better….to give away….to people in a far away country?

  45. He plans to give it away to them as a community. He will collect donations from people, companies, and other sources which care about the lives of the people in poor countries. It’s called charity.

  46. Well after reading all your disparaging remarks we might as well stop trying to find a way to help poor countries and just send in the gas companies to sell them oil. Hell what’s the use. Just give up, make fun of anyone who tries and throw it all away. Hell everyone knows only gasoline can generate enough power to run a damn microwave. Who freakin cares about a damn microwave, do you honestly think these people cook with one? Are you actually that stupid? Really?

  47. I generate all of my own electricity. Mostly solar, a little bit of diesel power. This is bullshit. It says MY house. First of all, my house is a boat and my electricity usage is tiny compared to virtually any house that was built with electricity routed through the walls. What WOULD be my house if we were dirt dwellers. Still we use 200-300 amp hours a day at 12v. That’s about 3000 watt hours consumed. We lose about 30%- 35% due to the inefficiency of batteries (80% return at best) and losses in wires and power conversion or inversion. That means that we actually need to make about 5000 watt hours, 5 times what they quoted. We have a small keel-cooled refrigerator (no fan or water pump to run) fans to keep us cool, laptop and phone chargers, LED lighting, and an anchor light all night long. Really minimal to maintain a fairly conservative modern lifestyle. If they said “Generate Enough Electricity to Power an African Hut”, I’d buy it. If you want to convince me, don’t start out by lying to me.

  48. it claims “An hour on this bicycle will give your house enough power for 24 hours”

    Will there be enough power left to charge the phone and call 911 for the resulting heart attack?

    You get one of these for free when you sign up for Obamacare

  49. they can’t,

    but we can ship them all the Schwinn exercise bikes hidden away in basements and the electric motors/generators out of all the broken down washing machines in America with a screwdriver and an “assembly required” sticker in 40 languages and the world will be fully powered up by next year

  50. I live on minimal solar electricity. Have for all but five years since the beginning of the ’90s. I live on less than 1,500 watts per day. Run my laptop 12 to 16 hours daily. Along with a modem and microwave-dish wireless internet connection. Keep my cellphone charged. Have efficient LED area lighting in each room used as / when needed. Run a 700 watt blender for a few minutes each day. Have the radio on most of the day nearly every day.

    Run highly efficient fans all summer. Run a cpap machine all night every night.

    Am not a TV watcher, by choice, so don’t have to allow for that. Though I do watch videos on a netbook (which, real-world, draws 15-19 watts per hour).

    What I DON’T have or use is anything with an electric heating element. Use a propane fridge. And, by choice, do not use a microwave oven.

    Carefully shop all electrical purchases, reading the UL ratings, and real-world testing with a watt-minder device. Pay more upfront sometimes to get the most efficient, lowest amp draw version of an appliance.

    This is a lifestyle choice. Allows me to live in a beautiful, off-grid location in the Northern New Mexico mountains. I really don’t feel like I’m sacrificing.

    I know not everyone would choose or care to live this way. And I know it took my family about a year to master how to do it and to adjust to it. But it IS for real possible to live relatively well and comfortably in America on 1.5kw per day – – if you consciously choose to – – and locate in a climate thst doesn’t require air conditioning in the summer.

  51. It depends on the road. Lets say it takes 1kWh, and you need to do 200W pedaling for 5 hours. 1kWh equals 85 grams of petrol energy.

  52. I have read a lot of the comments valid one too. But how much does it cost remembering the selling point is aimed at the poor people.

  53. It’s a matter of physics. The energy produced by one person is negligible compared with almost any household usage.

    A non athlete might be able to produce 100 watts. For one hour.

    That’s just about enough to run one small laptop. For one hour.

  54. The MACHINE won’t generate anything.

    A PERSON inputs the energy here.

    And a person might be able to produce 100 watts for an hour.

    That’s 0.1kwh.

    This is a highly polished fraud.

  55. It is based of a pulley type system, just like a pulley can help you lift more than you can, the inner workings of the spinning rotate several magnetic motors to multiply the energy.

  56. I imagine that most hours with sunlight are being used to work for survival. It’s the hours of darkness that could be used to better your situation. I’ve seen less polished versions of this being used in third world countries to power a light that gives children a chance to study.

  57. Nope. You waste what is cheap. If electricity was costly or rare, we would not waste it.
    It is the same reason that we use oil over electricity to power transportations, it is even cheaper.

  58. No link has been provided to where to purchase/how to build such a bicycle. Where can one be purchased, or how can it be built, and how much does it cost, please?

  59. Great for Indian villages where they don’t have to spend so much money/energy on heating and can cook outside ,

  60. He plans to donate them to village in poor countries. He gets donations from foundations, corporations, and individuals.

  61. …maybe if you use ~10 watts average (1/6 of one 60 W light bulb). A human can produce about 100-200 watts. Divide this number by 24 and compare to typical household usage (~1 kW)–not gonna happen unless you have hundreds of family members who never sleep.

  62. 1 hour of vigorous bicycling is 1225 kC (per my caloric counter site). Which in turn is 1425 watts. That will run a 75 w bulb for 19 hours.

  63. I would think the Australian invention of computer printed solar panels would be of greater benefit .A small generator and a printer could move from village to village covering roof tops with solar panels but then there is the massive cost of storage batteries to deal with.

  64. Your math for this example is also why gyms don’t harness power from their machines–it isn’t worth the effort.

    Anyone with a handcrank flashlight or radio will know just how much effort is needed to produce a miniscule amount of power.

  65. Actually it’s already been road tested and is expanding. I don’t know if it’s this machine exactly, but entrepreneurs sell an hours worth of cycling power for $1 in african villages. This gives them the local equivalent of a day’s pay per hour, and provides poor locals with a cheaper source of light and mobile phone power than paraffin or other sources.

  66. Good point- it shows just how absurd it is carrying lumps of heavy metal around with us when we move. The amount of wasted energy depends on essentially stealing energy and wellbeing from the future or other places.

    If we had to power our lives sustainably ( and most of us will have to at some point in the future), we’d be reluctant to waste it on cars, etc.

  67. It’s actually a really interesting video. But I’m glad that with your little math equations you’re obviously much smarter than the billionaire. Get a clue people. Watch the video before you make us all dumber with your commentsj

  68. Thanks for the maths ( although you may be underestimating by 10^3- see later comment). But ,if I understand you correctly, one second of cycling would power a microwave for 8 seconds ? That’s a pretty good return, I’d say. One minute’s cycling to cook dinner ! Less depletion of rare firewood, less smoke induced blindness and respiratory disease. I’ve lived by fire- and it takes a LOT of time and effort. My lungs can’t take it either.

    Alternatively it means less burning of coal /nuclear, etc in richer countries. Brilliant.

    Of course ,they’re unlikely to have a microwaves in off grid villages, but such high efficiency would charge LED lights , laptops etc with even less effort.

  69. The article title and content are wrong. The video is probably okay. What the engineer says in there is “1050 equivalent watts of lighting”. It seems he is referring to ten 105 W equiv CFL bulbs, each of which takes 23 to 28 W. To power those, the machine needs to generate 230 to 280 W of power. Now… keep in mind, that’s just a demo. The machine is a prototype, and use in a 3rd world country would probably be configured differently. You probably wouldn’t use 10 CFL bulbs; you might power a comm link to some distant point, and possibly do something like wi-fi, or perhaps Bluetooth for lower power.

  70. By connecting a load (batteries) you will increase the resistance exponentially. Frankly it is not the best use of money (charge controllers, inverters, batteries) invest in solar instead.

  71. By referring to heated showers- you put this into a rich world context, Dag ,in which people still need exercise, and would merely replace it with this, more effective version ( IMHO exercising with no purpose other than exercising is not motivating , and seems decadent). Those same people probably take excessive numbers of showers anyway as a matter of convention or because of using paper after going to the loo ( a rather ineffective method of cleaning for such circumstances).

    Most poorer communities would wash with ambient temperature water – if they had enough. And in that context these bicycles provide alternative employment to hard labour ,most likely.

    Overall- electric showers are not really relevant in either context.

  72. In the African village context the batteries are already in the light holder or mobile phone, etc- the customer brings their own in other words. I could also imagine charging ordinary rechargeable AAA or AA cells, and selling them with a deposit.

  73. There is nothing you can do with the system to get more energy out of it than you can put in. That’s just the law of the conservation of energy – there is no getting around that. And since no system can be 100% efficient you’ll always be exerting more energy from the person than you can store in the battery.

  74. Near the equator the sun goes down at 6:00, when I lived in West AFrica the kids were in school from 7-11 and 2-5:00 each afternoon, by the time they got home from school it would be dark.

  75. How many people live in the typical US home ? Presumably it wouldn’t just be , say the Mom doing the cycling ? Although I wouldn’t be surprised in some cases. 2000 Kcals is the minimum for a sedentary female adult. Physically active males might reasonably consume twice this, and heavy manual workers considerably more still. I’d be happy to convert a few extra mangos and nuts into power , whilst getting some of the cardiovascular exercise i don’t quite manage to get around to .

    A litre of beer probably has about 500 Kcals in it – what an excuse !

  76. If you watch the video they did not claim to be able to run your AC, heater, fridge or anything like that. The headline of this story is misleading. In the video they have a wall of light bulbs and claim to be able to run that.

  77. I think the main issue that’s not being discussed is that he’s mixing the idea of well off people in developed nations who have time and energy to do daily exercise, with homes in third world countries. People who live in houses that have very little energy consumption, are not going to be able to do an hour of vigorous exercise every day for a small amount of electricity.

  78. Scott Snadow, and anyone else, go on YouTube and search: “Billions in Change” for a greater background on this invention.

  79. People have to eat more when they exercise. This runs on food. Food in places with the least amount of food.

  80. Has anyone considered the cost of the equipment. Like the wind turbines it may be cheaper to buy the coal, generate the electricity then clean the environment.

  81. This is a scam. The average American home consumes 11,000 kilowatt hours per
    year, or 30 kilowatt hours per day. An athlete cycling at their hardest
    for one hour can only generate around 800 watt hours, which is less
    than one kilowatt hour. A normal person casually exercising on a
    stationary bicycle is probably a tenth of that. So a person wouldn’t be
    able to keep up with the power consumed while biking, let alone generate
    power for more than that time. The BBC did an entire episode on this
    topic in their Bang Goes the Theory program.

  82. Well, it’s a little better than that. It’s difficult to discern, but in the video, the second gentleman talking says it can light 10 x 100watt bulbs..the first metric, generating 1000 watts with an hour’s workout, is 1.00 kWh

  83. They qualify it in the video: “enough power to supply light and charge your phone through the night!”

    So yeah. No.

  84. And btw the gym idea is effing brilliant. Someone else will do it now, and you’ll be out 6 million dollars.

  85. Actually, wind has the best bang for the buck for producing power. Solar has the advantage only in that it is available in more places and times.

  86. The machines at the gym at Texas State University all have little televisions that are powered by your movement instead of having large televisions playing throughout the gym. Not quite the same…but pretty cool!

  87. 2000 kcal = 8368000 watt seconds. On Google, typed 2000 kcal to watt seconds. Same thing if I type Calorie.
    It is 2324.444 watt hours. But you wouldn’t use all that energy on a bicycle for an hour.

  88. I am an electrician, also have a degree in solar. This is theoretically possibe. not having looked at the schematics, I don’t know exactly how this bike works, but with an ordanary 15 speed bike, look @ the gearing ratio. If you gear it right, the pedaling force could turn the armature of a generator @ 100 times or more of the pedalling speed. thus charging the batteries. He never said anything about enough electricity for a 80 inch flat screen. But some LED light bulbs, cell phones, and a laptop, definately possible. need more power? pedal longer.

  89. Nonsense. My Acer netbooks draw between 12 and 20 watts per hour — actually tested and documented several times over the last five years. The newer models use even less than the 2010 models. If living on limited electricity there is no reason to buy an energy-hog laptop. And 800 lumens, 60-watt LED light bulbs draw 8.5 watts each.(And I can buy them now for less than $2.50 each! And supposedly they will last for 22 years.) No reason to leave them on except when and where you need them.

  90. Yes, but if you live on limited electricity you don’t use things with electric heating elements — like toasters and hair dryers. They are highly highly inefficient and are not necessities.

  91. It takes a lot of human effort and energy consumption (calories/sugar) to power a house for 24 hours. For example to turn an on load 80 amp car alternator for one hour is very difficult to sustain even for the fittest people. 10 minutes of pedaling is a struggle to keep just one 20 watt light bulb on. Gearing and the flywheel can help balance out the load, however it still works out the same in the end. It would be better to invest in better photo voltaic cell cost per watt ratio improvements together with Stationary battery capacity and cost of production. I know a lot about these systems and I would like to talk to this guy before he wastes too much on greenie hype.

  92. I’ve lived on solar for 18 of the last 25 years. At times with a small family. My systems are designed to sustainably produce 1,200 watts per day in the shortest sunny days of winter. I use on average 1,500 watts per day and live well and comfortably that way. (I do have a shortfall for about 40 days a year in the winter and have to conserve more or use backup power in that season to charge my batteries. And the shortfall could easily be remedied with a small investment in more solar production and more battery storage.)

    I know we each have different needs, but it is very possible to live in America on 1,500 watts of electricity daily (AND have wifi and a netbook running for 16 hours a day, and keep a Samsung Galaxy Note 3 cellphone charged, and have adequate lighting anywhere needed).

  93. Vs. the cost of producing a not-so-efficient refrigerator? Let’s assume one is going to use a refrigerator. Are you saying the cost of manufacturing a more energy-efficient model offsets the lifetime energy savings versus buying/using the less-efficient model? I’d like to see the calculations for that.

  94. That would be a very expensive way to produce electricity John. Hence the reason its not commonly done. The added cost of equipment and interconnection routines actually results in a negative gain. Sunlight (Solar/carbon fuels) and gravity (hydro) will always be the most cost effective means of generating electricity. Individual house holds or businesses are best suited to solar cells and stationary batteries if they either do not have access to a grid or they wish to cut off. Photo voltaic cells and stationary batteries will be more cost effective than converting gym equipment in any case. (Mainly because of the engineering involved to create an efficient working system)

  95. The light bulbs were 4 watt. Divide 100 watts by 4 watts = 25 hours for one light or 10 lights for 2.5 hours. Enough for a small house to have lighting at night. Cell phones only need 1-5 watts to charge. So the article is misleading & should say that you can’t power your house but you can have lighting & mobile phone indefinitely.

  96. The light bulbs were 4 watt. Divide 100 watts by 4 watts = 25 hours for one light or 10 lights for 2.5 hours. Enough for a small house to have lighting at night. Cell phones only need 1-5 watts to charge. So the article is misleading & should say that you can’t power your house but you can have lighting & mobile phone indefinitely..

  97. The light bulbs were 4 watt. Divide 100 watts by 4 watts = 25 hours for one light or 10 lights for 2.5 hours. Enough for a small house to have lighting at night. Cell phones only need 1-5 watts to charge. So the article is misleading & should say that you can’t power your house but you can have lighting & mobile phone indefinitely…

  98. The light bulbs were 4 watt. Divide 100 watts by 4 watts = 25 hours for one light or 10 lights for 2.5 hours. Enough for a small house to have lighting at night. Cell phones only need 1-5 watts to charge. So the article is misleading & should say that you can’t power your house but you can have lighting & mobile phone indefinitely…..

  99. I started doing similar calculations when I remembered something. Food energy is reported in “large calories,” which are really kilocalories in normal physical units. Thus the energy you computed should be 2 kWh. See the Wikipedia page for calorie for an explanation:

  100. 2000Kilocalories. They just write 2000 to make it shorter. If you go to Europe its written 2000kcal on nutrition labels. Still not a whole lot of time on that microwave.

  101. Money grabs like this and the “play pumps” are about getting grants and donations. I am working on projects that will actually be suitable for third world conditions where a practical pedal powered generator could be lifesaving after a storm when the solar panels don’t have enough sun

  102. Can you add?

    2000w alternator with fly wheel, gearing and
    interface to industrial strength Exercycle US$7000+ Add power distribution system to regulations and stationary battery system US$20,000+

    2000w Photo voltaic system -$16,000

  103. This is a project by,
    a foundation started by the founder of 5Hour Energy. He donated 99% of
    his $4 billion fortune to help the less fortunate, starting with the
    fields of fresh water (invented an amazing solar powered desalination
    plant), portable renewable energy (above), and preventive health issues. These are being built for use in
    third world countries where there is no power grid. It’s not meant for
    your home. It’s meant for people who need it.

  104. I am calling BS. Someone in really good shape can output about 200 watts for an hour. That works out to .2kwh of electricity. The average house in America uses about 30khh per day. That is 150 times more than the average healthy person can produce.

    Even if you took a top athlete that can win the Tour de France can output about 400 watts for an hour. Even if you had a house that was 90% more efficient than average that is still .4kwh output versus 3kwh generated. That is still a shortfall of nearly tenfold.

  105. I don’t personally care how much it saves me in $ I would take anything since it’s better than what I am saving…plus that will motivate me to use it!

  106. While a person might consume 2000 calories a day that is only a distracting figure to the real math. That being said the figure quoted in the video was 1200 watts being produced. At 1200 Watts/sec being produced for an hour that figures out to be 1200 X 60 X 60 4,320,000 watts/hour which sounds a bit high to me. Maybe it is 1200 or 1.2 kwh instead (probably more likely) but still far less than a normal household would use in the USA. Typically around 7.2 kwh/day in the USA for daily consumption. I would suggest that one either have a large family to help out on a daily basis or make plans to spend 6 hours a day peddeling to power a standard home (all electric) in the USA. Still it would be helpful especially if you use a grid tie inverter to dump back on the grid or make plans to buy many batteries to store the energy and use a regular inverter for when you want to run something off the stored power. What a workout that would be, one could expect very strong legs out of this or else very tired legs after such a workout. Much more practical for just lighting and communications rather than powering a whole household ( lighting, cooking, heating, cooling and power tools as well was cleaning tools and hot water). But not to diminish the helpfulness thereof it is practice for the amount of physical energy expended both for health as well as electrical energy. With some modifications it could be very easy to up the output and supplement the power input causing it to be more sustainable thus causing it to have as much higher resultant output in KWH.

  107. I am unsure about that 1050 watt number. The world record amount of energy ever used for an hour on a bike is 430 watts. How could you produce 1050 watts in one hour on a bike machine if the strongest human could only produce 430 watts in 1 hour? This would reduce the number of kWh by over half.

  108. It isn’t that he is trying to help, it is that he is so misguided. Kinetic human energy is a terrible source. Why is he promoting something that is a total loser. If he were donating simple solar energy units it would be cheaper and infinitely more effective. At most you would get .2 kWh from the bike in 1 hour of use. Solar in even the coldest poor climates clocks in at over 4 kWh per day per square meter. That is about the same as an hour on the bike for each 1 square meter of solar panel and no one is wasting an hour riding a bike machine.

  109. Ken, I agree with what you are saying completely, and you could get enough energy from a bike to generate the little energy needed for a few LED bulbs, a laptop and a cellphone. The problem is, there are infinitely better ways to produce those small amounts of energy than having humans expend the energy on a generator. Look at the bike. The embedded energy cost to it is probably 10x what it would produce in its lifetime. It would be stupid to pay for these bikes in every home in all of the poor communities around the world. Much better to give them wind or solar power.

  110. He clearly says in the video, if you pedal the bike for 1 hour you get electricity for 24 hours. This is true as long as you use very little power for the 24 hours. The whole thing reeks of a scam. There are incredible people working on micro-power solutions, and all of them are light years ahead of this guy.

  111. And herein lies the implicit scam. As gordon says, you can’t get more energy out than you put in. There are no pulleys, no gears, nothing that can create energy. The maximum output that a human can produce is 430 watts per hour. The average human is WAY below that. This bike doesn’t produce much energy and the fact they never tell you how much energy it produces tells me it is a scam.

  112. Do you like eating salmon? Hydro power may be carbon neutral but it’s not nearly environmentally neutral. We really need to invest in improving solar technology until we can make it work for everything. With the current low efficiency of solar panels, there’s a lot of room to improve.

  113. The math doesn’t support your hypothesis. Sorry. People just don’t produce nearly enough wattage to charge a bank of batteries big enough to power a home.

  114. The “calorie” used for human energy intake is actually the kilocalorie. So you’re off by a factor of a thousand. Otoh, the amount of mechanical work produced during an hour workout would probably be closer to 1000 kilocalories for a trained athlete. So multiply your result by 1000 then divide by 2 giving 1 kWh. I guess that’s about an hour of microwaving.

  115. Actually consumption and output availability aren’t 1:1 and also bicycle cranking uses body weight as much of the driving force, you don’t do much other than shift weight and stand for a moment and repeat. Only insane pros clip in and use both push and pull and muscle it the whole time, users of this type of thing would be mostly gravity pumping, it might as well be a flywheel hooked to a stairmaster – or a human hamster wheel/treadmill, etc.

  116. Total engineering fail. Any first-year student can show that the claims presented here are complete and total BS. You *might* generate enough power to keep an LED flashlight operating for 24 hours, that’s about it.

  117. Natural gas is clean and inexpensive. It flows 24/7, not only when it’s windy, sunny, or when people get of their butts and work out.

  118. I believe they are talking mostly about the poor in other countries. It is likely they do not have microwaves but lights and maybe other electric appliances. What does it take to charge a cell phone or tablet for instance.
    Imagine what you could power in a household of 5 if each person biked for an hour.

  119. Watts are a rate, not an energy quantity. 1200W is 1200 Joules per second. So your number should be 4,320,000 Joules per hour. Or, put another way, 1200W for an hour is 1200Wh, or 1.2kWh. Joules and kWh are both energy units. Be careful to account for the multiplication of time versus the division of it. Power times time equals energy. Energy divided by time equals power.

  120. im sorry, given the gym has to buy exercise machinse any way, and they have lots of them per distribution system., I have no idea what your point is

  121. i call bullshit. unless by powering your house for 24 hrs. you mean run a LED light… you sure as heck ain’t gonna power a real house… unless you are claiming perpetual energy or some such…. a professional bike rider is only capable of putting out 750 watts in short bursts. so even an hour at that figure is just 750 watts. enough to light a 100 watt light bulb for 7.5 hours. forget water heater, AC, refrig and all the rest. so unless you’ve repealed the laws of physics. i call BS.
    my own pedicycle puts out 120 watts at high speed cruise pedaling.

  122. I don’t see how an hour on any bike would power an American home for a day, or anything even close to a day. Maybe it would power my laptop, but that’s about it.

  123. Wouldn’t the choice of wind or solar depend on a lot of factors, including wind speed, availability of sunny days, efficiency of the collectors, etc.? Not trying to be a jerk, I really don’t know.

  124. Which means you could run a 100 W lightbulb for 23 hours…After bicycling at full speed…for two hours straight (assuming you’re burning 1000 kcal p/hr, which seems to be about the limit, and assuming that you’re somehow getting 100% storage efficiency. Which you aren’t)…Somehow, it seems like a day’s-worth of calories could be put to better use.

  125. When defining human consumption, calories are denoted with a capital C, meaning that 2000 Calories is actually 2000 kilocalories or 2,000,000 calories. Your math is correct beyond that. Divide the Watt-seconds by 3600 and then by 1000 gives you 2.36 KWH which is a fraction of what it takes to run a modern household.

  126. for a cost of $2,000, you can buy a complete solar water heating system package that genrates 3 kW an hr and is 92% efficient compared to PV at 16% OR you install PV + Thermal = PVT and gain both power and heat from one panel, with thermal storage costing 90% less than battery banks that last 10 years if u are lucky

  127. Consuming calories (biological fuel) is totally unrelated to how many kCal or joules (or watt-seconds, whatever unit you want to use) you can generate with mechanical forces.

    What matters is the efficiency of the conversion equipment and the losses in the transmission and storage

    Also, how do they calculate the energy consumption of a house in 24 hours? There’s a huge variation depending on size and use cases

    Another separate issue is cost benefit analysis. How much does it cost to convert a household to be powered by DC cells that are recharged by flywheel? A damn lot

    Of course people said electric cars would never be cost efficient to be practical, and now they’re pretty common. So I’m not saying this will never be implemented in a practical and scalable manner, but right now it’s a gimmick and clickbait

  128. It’s a bicycle that stores power.It’s not new. The refugee camps in Europe are full of them. Not much need. What’s wrong with just taking exercise and getting power, and pursuit from that to donate to people power in developing areas

  129. Sorry to be “the hater”, but this is a feeble device. The wall of lamps was only a 6 X 4 array of 4 Watt LED lamps. Totalling 96 Watts of required input energy.
    To put some perspective onto this, a cyclist on Tour de France can output power in the range of 200 – 300 Watt. (if sustained for one whole hour = 0.3 kWh = bugger all)
    However the cyclist can benefit from all of their energy input, as the losses are minimal, as opposed to electric conversion..

  130. Explain how gearing ratio alters the energy output..
    Energy out = energy in – losses.
    more stages of conversion (gears – mechanical to electrical) = more losses.

  131. You’d be better off buying an equivalent battery system which the tesla ones are a replication of. Cheaper too.

  132. I’d bet this contraption is out of most of our privileged price ranges. So aiming it at the poor is, well poor.

  133. As others have said, not near enough to power a house. But I think every XBOX should come with one of these instead of a power chord. …

  134. Just like on a bicycle and a car. Changing gearing, makes the wheels spin faster, a faster spinning rotor created more electricity. Have you ever seen those large wind turbines?? They have gears in the Nacel to make the generator spin faster.

  135. The point is: Making something spin faster does not introduce more energy into the system. It will most certainly introduce MORE losses into the system. (windage & heat).

    Remember the input energy can’t be increased, we can only take advantage of a whats left after the losses…

    Read up on thermodynamics..

  136. I agree with that, However, now a lot of dams have fish runs, to let the fish go up stream, past the dam without getting harmed. But what dams do to the environment where they create the lakes where there previously wasnt a lake. I like ethe idea of flying wind turbines. you can put them in constand wind in the sky, and for extra bonus, add solar panels to the top.

  137. I’m an electrician working alongside electrical and mechanical engineers. All of whom are laughing at your confusion.

  138. solar is fine but has its own problems too. if you have a big back yard install it in the back yard,not on your roof,the anchoring will cause leaks which you will need in time to replace the roof and let me tell you , it won’t be nothing to laugh about replacing a roof with all the solar panels on it.

  139. So, we’re all stumped here in the office here on which electrical principle states that input energy can be multiplied by increasing the RPM of a load. Please tell, that way I can power the world with a new 9V battery… will just have to add a few gears, and it’ll have ample energy! ๐Ÿ˜‰

  140. This is an obvious hoax. One person can pedal a 110-volt generator for maybe 30 seconds at a time (I have several 110- and 220-volt generators). You often see pedal machines set up at science fairs running one lightbulb, or maybe a television set. Running a whole household? Stove = 220 (not possible to pedal that amount of power), hot water heater = 220 (not possible to pedal that amount of power), clothes drier = 220 volts (not possible to pedal that amount of power), plus refrigerator, television, lights, furnace fan, computer, and so on. Each ONE of these would require many people pedalling to produce enough continuous power, and that’s ON TOP OF the power you’d need to produce in order to power a battery system.

  141. charging batteries will result in sotrage and conversion losses. if they are generating 0.2kWh, then the batteries will receive under 0.2kWh * hours. Enough to run a kettle for 5 minutes tops.

  142. According to my latest power bill, I use 269kWh per month. or about 9kWh per day.

    I have LED lighting, which I turn off if I’m not in the room. modern freezer (half full of farm meat), I don’t have a refrigerator as I just freezer some ice pads in the freezer since I normally only had a little milk or beer in the fridge, and my hot water is 100% solar. cooking is less than 3 minutes a day on the microwave.

    Not sure how a bicycle is going to produce the 10+ kWh to power most peoples’ homes, certainly not a human pumping out 10kW solidly for an hour. (unless you’re rendering them down….)

  143. That’s assuming you’re burning the calories, with fire.
    You are forgetting that you take in water and oxygen to produce the chemical energy from the 2000 calories you need in order to do all the movement and simple living in 24 hours.

  144. You are not up-to-date on this.

    There are gyms in Portland, Japan and London using this technology, and the Portland gym is starting to open franchises. The engineering problems seem to be solved for these locations.

    Resource Fitness, the manufacturer, sells its equipment for the same $1,200 price as non-electricity-generating machines, removing the question of how long it will be until the energy savings pay for the cost of the unit. The company can afford to do this because its designs don’t call for the extra wiring needed for battery packs and large converters. It is also trying to price competitively with standard equipment so more gyms โ€” and gymgoers โ€” will make the switch. ”

    The gym equipment produces twice the amount of electricity needed to run the facility. This has proven to be very economical.

  145. I don’t know what you calculated there, but the energy turnover for a human is more like 2.000.000 calories, also known as 2000kcal. According to your calculations that’s 2 kwh. All that aside, as a road cyclist I can tell you that a fairly strong cyclist(racer) will be able to do 1kwh of mechanical work in about 4hours, maybe 3h if he`s truly elite. But at a mechanical efficiency of 25% it I doubt it’s worth it, again, being a cyclist, I can also tell you stories about my extraordinary food bill ๐Ÿ™

  146. This is crazy and harmful thinking. Let’s think about some obvious things:

    Really hard exertion burns about 600 dietary calories per hour. That’s about 0.7kWh. But really you only get about 25% efficiency from the human body so assuming a 100% maximally efficient generator bike and battery (both impossible) we get to at best 0.2kWh per hour from a person pedaling a bike really hard. So that’s a maximum of 200 Watt Hours per day for 1 hour of work if the machine is PERFECTLY efficient.

    What can you do with 200 Watt Hours? Well it takes 150 Watt Hours to boil a quart of water. It takes 50 Watt hours to run a single 4 watt LED bulb for the night. Oops now you’re out of power. You know how else rural people can boil a quart of water? By burning about a tenth of a log of firewood.

    These 3 billion people (half the world) who has no or little electricity? Do they have extra food? Are they eating more food than they need, are they overweight? No they aren’t. So if they’re going to burn an extra 600 calories per day, they’re going to have to eat more food. So it’s not free energy. Food costs money. And how about that hour of time? Do these 3 billion people have a lot of leisure time, can they afford to pedal for an hour a day? What are they giving up during that hour?

    “you will never run out of electricity” – Well until you can’t afford to buy the extra food, or until you can’t afford to spend the extra hour pedaling, or until you can’t afford to replace the battery which will probably need to be replaced every 3 years (1000 deep charge/discharge cycles).

    “you will never generate pollution” – You’re telling me that mining the materials for this machine, creating the machine, transporting the machine, and dealing with the tremendous environmental impacts of battery disposal all have no pollution? You’re going to do that 3 billion times and generate no pollution? Fat chance. And then as I said all these 3 billion people are going to need to eat an extra 600 calories per day. Growing and transporting that extra food won’t generate any pollution either huh?

    Most of the cost in this machine is going to be the battery. Why not give the same 3 billion people that same battery with a solar panel attached so they don’t waste an hour a day and 600 calories of food keeping the battery charged? And then the video talks about people in the US stuck in a natural disaster – why not give those people a UPS unit which is just a big battery that they can charge by plugging it into their cheap grid power?

    I read somewhere that this machine is supposed to cost $100. I would believe you could buy this machine for $100 retail in the US or maybe that a factor would charge you $100 to produce it. But how about the costs to deliver the machine to all these ultra rural off the grid places and train the end users how to use it? The logistics on that ought to drive the cost up by quite a lot, this isn’t a light weight or small item. So maybe it’d be $1000 or even $10,000 per ultra rural home once you account for these costs. Where does that money come from and why wouldn’t you spend it on solar or other technologies instead?

    There’s nothing at all revolutionary about this machine! It’s harmful to people and the planet to consider this a viable option. It won’t help with pollution or climate change or global poverty.

    And it won’t even help Americans lose weight. Sure we’ve got lots of excess calories to burn in the developed world and we could use the exercise collectively. But this thing lets us generate 200 Watt Hours per Hour from our body fat. 200 Watt Hours costs about 2.5 cents. Do you think someone who wouldn’t otherwise get on an exercise bike would hear “OH I can exercise for an hour and save 2.5 cents?!” I’m so doing that!

    2.5 cents per hour. That’s what this machine is worth to its users in the US. And meanwhile 600 calories of food will cost anywhere from 12 cents (canola oil) to $9 (turkey cold cuts) or plenty more.

    A bit of perspective, a typical American household uses 30,000 Watt hours per day. This thing generates at most 200 Watt hours per day.

    There Ain’t No Such Thing As A Free Lunch

  147. I bet they will ban them here in America! I always said this could be done to generate power for batteries in a car!

  148. I call BS. A healthy adult male can do about 100W for one hour, tops. So a 1000W microwave, if the generator, battery, and inverter are 100% efficient (not even close) could run for about 6 minutes and then it is dead. Water heater? No way. Enough to run a few LED bulbs if you are careful about how long you leave them on. Charge a laptop.

    A desktop computer draws a lot more than 100W. A large screen TV will eat through that in a short time.

    So if you are in a cabin in the woods with just one bulb and your laptop, this might be true.

  149. Except that the actual power output that a healthy adult male can sustain for 1 hour is … 100W. So a 100W bulb for one hour. Less, as you point out there is storage inefficiency. Then there is the inefficiency of the generator, and of the inverter.

  150. Sounds great, please post the link to where we can “buy a complete solar water heating system package that generates 3 kW an hr and is 92% efficient.” I’ll do it if it is legit.

  151. Ok Dave. No need to start name calling! I’m only talking about the fact that the increasing the RPM of an internal component does not increase energy output. I and most likely many others are thinking you’re confused.
    It’s ok. But name calling is childish.

  152. OK fair enough, two things however. 1 the article shows an exercise machine with a large flywheel and a 2kw industrial alternator. The battery system is not referred to but is obviously needed as the headline indicates “1 hour of pedaling for 24 hrs of electricity”. 2 The energy required to turn a 2kw alternator connected to a bank of battery cells for one hour is beyond human capacity. regardless of how much sugar is consumed. The gym equipment you refer to would not be capable of producing that amount of energy individually, maybe 100 peaces in tandem will. Hence to be honest, for this system to work as indicated by the headline, the engineering requirements are going to be very expensive. In any case still not anywhere near as efficient as burning just 1 liter of petrol in a $700 2kw generator unit. Petrol and sugar are actually the same ‘organic’ by products of solar energy. Hence the reason people who spend a lot of time on gym equipment consume a lot of sugary stuff. Actually sugar is more expensive at the food store than petrol per liter!

  153. naaaah…not that much. The price you’ve quoted is full super retail, like if the government was buying this stuff.
    Realistically, the generator and the batteries are the expensive part. Batteries; maybe $500 for a couple of good, deep cycle 24volt. The expensive stuff in the generator are the magnets and the coils. $250 for the magnets and $100 for the wire. The rest could be done with bike parts and some welded steel; $200?
    So a little over $1000.

  154. Yes Len. Exactly right. Wind is trickier and higher maintenance because of the moving parts but due to the present low efficiency of solar cells, wind power is best on days when the sun goes in, ie. stormy weather.

  155. Please read up proper thermodynamics, mechanical engineering literature.
    Refrain from watching the perpetual machines on YouTube.
    Resorting to name calling is a childish trait.
    Good day.

  156. Well first of all, an average individual consumes about 2000 KILO calories (kcal) per day, not 2000 calories. So your calculation is off by a few orders of magnitude.

    Second, a person would not burn 2000 kcal in an hour of stationary biking (unless, maybe, they were Lance Armstrong). More realistically, an individual would burn somewhere between 500-1000 kcal in an hour workout session.

    Going by the top end of that estimate, a person burning 1000 kcal per hour would generate about 1.16 kilowatt hours of electricity, assuming no energy is lost, which is absolutely not the case. Still much much higher than your estimate.

  157. OK. Where do I get one? Are there programs to subsidize the purchase? I mean, this is interesting and all, but where’s MINE !??!

  158. For probably a similar, or lower, cost compared to this generator bike you can get a solar panel, a few batteries, some LED bulbs, and some logic circuitry and have solar powered lighting all night and all day long. You can then go work at at a job instead of having to bike for 8 hours every day generating 75 watts, which is the amount a normal adult can sustain.

  159. hi there this is the master chief soo what our halo universe powered by big bang anti matter generator out put unlimited googlplix big bangs soles evergy crises just wire kess beam energy from halo universe too power earth

  160. Sarah believes the hype about windmills creating electro magnetic fields, (bullshit), and any bird the flys into them surely increases there species survival by killing off the dumb bastards

  161. Yup, you’re right. Certified BS.

    According to Wikipedia (which has a good citation):

    “A trained cyclist can produce about 400 watts of mechanical power for an hour or more, but adults of good average fitness average between 50 and 150 watts for an hour of vigorous exercise. “

    That means in a perfectly (100%) efficient power harvesting system that a human produces 0.1 kWh (in an hour). An average american household consumes 30 kWh a day. (

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