Renewable Energy to Power Vehicle Engine




I have an Idea budding in my head to run engines on water as fuel.
Today, I will share my thoughts with you and provide you a good clue of what could be the solution of GAS alternative.
Friends, before starting with the instructable I want to make it clear that I haven't build anything with this idea as of now. So, I am not completely sure how far it is safe and possible.
With this in mind lets start the 'project ENVIRONMENT'.....


P.S.: Those who are looking for the prototype, this instructable will not help you.

I will like to thank all those whose instructables I have used here.

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Step 1: Basic Concept

The concept is to generate hydrogen from water through electrolysis and use it to power the usual petrol engine.

Electrolysis of water:

Go to my instructable on 'HHO generator' for more details.

Step 2: Supply Hydrogen Gas to Engine

Supply hydrogen generated from electrolysis to engine through the petrol intake valve.

Petrol engine uses a mixture of petrol and air to fire. Instead of petrol we will be using hydrogen.

Do not pre-mix hydrogen with air intake as it may result in explosion.

Adjust the fuel(hydrogen) pressure to get the optium result.

The engine should fire now.

Step 3: Vary Voltage of DC Supply to Control Electrolysis Process

HOWEVER, I can help you of what can be done.

Use a tachometer sensor (tachometer is used to read the rpm of motor) to read the rpm of engine. According to the rpm of engine vary the voltage of the DC supply.

For example:
when the speed increases---the rpm increases---this shld increase the voltage----this will speed up the electrolysis process.

And, when the speed decreases---rpm decreases---the voltage decreases----this will slow down the electrolysis process.

'The key is to generate only required amount of hydrogen needed for combustion.'

Step 4: The DC Supply

DC supply powers the electrolysis process....

To charge the supply, use a battery or dynamo/alternator.

Read the following instructable:

Now, the circuit is complete.

I hope this instructable makes sense and has some appeal to it.


Step 5: Update: Magentic Generator Assisted Car

this is a discussion about what are the possiblities of running a car using alternate sources of energies, specifically water and electrical energy.
lot has been debated on the HHO energy. now, lets debate over this new idea.
according to some inventors, magnetic energy can be used to produce electricity forever without any external effort. to support this, i am posting two videos which can convince that it is not entirely impossible.
the first one is very basic in nature and u can try this at home. the second one is a more commercial in nature.

DIY Free Energy - Watch How to Build Electro-magnetic Generator and Light Up Your House for Free. - The most amazing videos are a click away

Everybody Can Make Free Electricity at Home - Click here for this week’s top video clips

my idea is if a similar generator can be made for an electric car, it can help charge the batteries forever and thus, help save in time to charge those batteries. also, the major advantage will be that the car can travel much longer distances, even more than conventional cars. what do you say guys?

P.S.: if you want to build a similar commercial type generator, you can download the manual to build one from my blog.

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    117 Discussions


    3 years ago

    I like to prefer soler energy .


    11 years ago on Step 4

    The problem is the laws of thermodynamics. Energy is lost because the electrolysis of water is not 100% efficient, the combustion engine is nowhere near 100% efficient, neither is the alternater. Energy is lost through friction and heat. This is an ages old idea, and as impossible today as it was decades ago. If there was an additional source of energy to offset the losses, then it would be fine. A solar array, for example.

    7 replies

    Reply 11 years ago on Step 4

    this argument that is based on the " laws of thermodynamics" is just plain foolishness. Merkidemis takes into account exactly what the other naysayers have spouted for years, and that is it, what is missing here is the benefit side of this ridiculas comment. It is true that it does take energy to produce brown gas, but what if I design a cell, test and install with an o2 and map enhancer, and save 50% on my gas useage........ is this an example of an energy source that does not work ? You naysayers need to do a FULL evaluation of this technology. Just spouting the laws of thermodynamics just doesn't cut it. I too studied therm in college and we advanced to Nuclear thermodynamics as well, ( that was nearly 45 years ago) and have used my engineering education my whole life. there are problems with any new or re-newed ideas, study the process, learn and experiment, you just piss me off with your narrowness.


    Reply 4 years ago on Introduction

    An engineer is conservative on paper so the Values are probably much Higher. I have seen other inventions that Brake or fudge this law. You always produce more then what you need. to Compensate for the laws of thermodynamics. this is why you Do not exceed an engine over 2000cc's otherwise you will never be able to produce enough gas to run it at that point you would need to produce compress and store at 15,000 to 30,000Psi you will never get more then your average 30 Gallon tank of gas but it WILL BE A ZERO EMMIT ION CAR that is the point of a Hydrogen powered car right?


    I completely agree! Think outside the box! Don't rely on everything you were taught in school or everything you read in books. It's like questioning authority. Question "proven facts" because if you don't, yer gonna be stuck in the classroom that's been sitting in a school that teaches old "facts". "There is nothing special about me. I'm just intensely curious." ~ Albert Einstein in other words, "What if?"


    Reply 7 years ago on Step 4

    Yeah, if you're such an expert then by all means, provide some examples where this has worked. Please provide a link to a frictionless alternator. And please don't accuse of narrowness. The whole reason all of us are even on this site is to find and share awesome new ideas and techniques. It just happens that this particular idea is neither new nor awesome.

    The engine doesn't have to be 100% efficient to use water as a medium to tap in to the ether/unlimited energy that is all around us that comes from the sun.

    I agree the gas you put in combustible engines are not efficient now at all for one reason they made the fuel heavier around the 1950's I believe so the fuel wouldn't get all the way burnt up and would come out the tail pipe look it up. If you just do a little research in history you can find credible people that have found way's of doing what this guy is talking about and been ridiculed, suppressed by the government's, and even some cases murdered like Stanley Myers for obvious reasons. It seems whatever someone says whatever someone invents even using the proper equipment to prove the results there is always someone saying the same thing over and over about the second law of thermodynamics. A lot of people say that the people who post such things are a part of the government but I just think some people are just brain washed by what they are taught in school. I have saw unlimited energy or free energy or over unity call it what you will but it happens it doesn't matter how as long as it works so please for the good of humanity just try and help instead of misquoting a law taken out of text.


    Reply 11 years ago on Introduction

    yeah it seems as though solar cells will be required for this and a plug in charger for bad weather


    4 years ago on Introduction

    Same as trying to pick yourself up with your shoelaces.


    4 years ago on Step 4

    Get a Fuel Injected engine do not exceed 2.6L Engine or you will never be able to produce Enough gas to run it at speed... you Need 6-8lpm to Idol and up to 25Lpm to Run 4000 to 6000 RPM Adjust timing to 1 degree after TDC also you will Need a Secondary Alternator and a Surge Bottle Capable of 100PSI I am Converting a Subaru Outback.


    4 years ago

    When u use electrolysis you'll get oxygen and hydrogen. There's really no reason to not to use the oxygen that is released as well. The use of both gases make a more efficient burn when sent through the air intake. Look on YouTube and look for small engine runs on HHO. The man has made a rather efficient dry HHO producer. He powers a small gas motor on HHO only. Go to his channel and subscribe to his channel. He wears a ball cap and is not very tall. Hope this helps


    5 years ago on Introduction

    It all depends on what you are trying to do.

    1. If you want to save on running your car. It will save you.

    2. If you want to run your car only from water. This is not the place to start.

    One explanation.

    I live at 6000 feet. If I travel to the coast (0 feet) when I get there the car pings.

    The garage man says it is because there is more Oxygen in the air at sea level than at 6000 feet and so the fuel/air mixture having more oxygen burns faster. (Apparently the more oxygen you have the faster (and hotter - see oxyactelyne torches) and so the timing needs to be advanced. These garage men say that I can get up to 15% more power at the coast.

    If I then, using the principles of electrolysis, separate water into oxygen and hydrogen and feed these into the air intake then the proportion of oxygen and hydrogen compared to the other gases will be greater, and so by doing this I will produce at least 15% more power, which would result in a 15% reduction of petrol and so save me 15% of my fuel bill. (minimum saving).

    What is the down side. Yes there are downsides. One is that if you run out of water or the electrolysis system fails, then you would have to adjust your car timing. However if the oxygen sensor, which I would hope would be in the intake system of the car, picks this up, it would adjust you timing automatically.

    Yes there would be an extra load on the alternator, the garage man says that power steering and air-conditioning also requires extra power as does the water pump and if I remember his guesstimates of this it would be 4%, consequently there would be a minimum saving of 11%. The figures in this article give up to 50% saving, that is a lot of bucks being saved.

    In reading through the above comments - at least most of them - they seem to use 'Brown Gas', it should be easy enough to only siphon just the oxygen and not the mixture of hydrogen and oxygen, but as hydrogen is 'combustible' it may just be safer and wiser to feed in brown gas.

    the man gadget

    11 years ago on Step 4

    merkidemis the bit that you fail to grasp is that if you can run an engine on this type of generator but not use all of the electricity from the alternator then the excess can be used to charge batteries or run an inverter and the other added benefit is that the heat generated from the engine can also be used to heat the watertank in the house and keep the engine running at a constant temp. The project I am building is for microgeneration so that I can be permanently disconnected from the grid and therefore not contributing to the carbon footprint. I am not looking to challenge the world of thermodynamics just harnessing energy to my advantage and not line the pockets of the greedy utilities companies.

    4 replies
    merkidemisthe man gadget

    Reply 7 years ago on Step 4

    Let's see, the theoretical max efficiency for electrolysis is about 82% (, the most efficient alternator is currently around 22% (, and most ICE engines, even with turbocharging, average around 20%, 37% being on the high end. ( Even if you could capture some of the waste heat, converting it into usable energy to accomplish work (like heating the water to increase the electrolysis efficiency) is not going to get you to 100%. Plus you need to take into account the work you're actually trying to accomplish, such as moving a vehicle. Road surface friction, wind resistance, etc will all sap efficiency from the system.

    Also, please read past the first sentence in my initial post. This is a perfectly fine method to power an engine, but will not provide the closed energy loop the author is proposing it does. It would prove to be a fine hybrid system provided that the "DC Voltage Supply" step is getting additional power from another source, such as solar panels. But, at that point, you might as well cut out all the horrible efficiency losses and just use electric motors.

    This kind of project has been popping up for decades, and for clear reasons none have ever worked. And none of those reasons have been because of the greed of energy companies.


    please check out us patent 7,789,048 for possible help in your inquiry. thanks for your help and kindness, ray


    please check out us patent 7,789,048 for possible help in your inquiry. thanks for your help and kindness, ray


    please check out us patent 7,789,048 for possible help in your inquiry. thanks for your help and kindness, ray