But what do you need to make this work? A lot of things but the two most important are the solar array and the batteries.

The solar array is vital because this is what’s used to collect the sun’s rays and then converts this into electrical energy. There are two types to choose from in the market namely the prefabricated type and the individual kind which you set up yourself.

If you are looking for branded parts, check out either Siemens or ASE Americas that sell terrestrial grade cells and the space grade cells. The lower end model which can produce a significant amount of power is the terrestrial grade version.

Proper wiring must be done to make sure that if one of the panels is not working, your vehicle will still move. If you are worried that the voltage of the solar array should match the system voltage of your motor, you should not to worry because it will still run.

We mentioned earlier that the battery is also important because this is where the solar energy will be stored. Your options for this are lead acid, lithium-ion or nickel-cadmium. Just how many you need to buy will depend on your motor’s voltage.

When you finally have these two components, these will now have to be connected to the motor. So you know how much juice is left in your batteries, you will also need to install instrumentation similar to the heads up display console on regular cars which tells you your speed, mileage and gas.

Don’t forget to put a steering wheel, suspension, brakes, tires and hubs. You may not be able to make a car that have the same features as like what you see done by one of the three US automakers but just enough to be able to drive it from one place to the next.

The only cars that use solar energy so far are the ones only used in races especially the one held in Australia from travels from the northern part of the country all the way to the south. If this has helped people realize that renewable energy is really the key to the future, the big automakers should try tapping this technology instead of relying of still relying on gasoline.

But apart from solar energy as a green energy source, biodiesel is another alternative. This is a combination of alcohol like methanol and a chemical process that separates glycerine and methyl esters (biodiesel) from fats or vegetable oils. This can also be done using corn and sugarcane.

Although these are not renewable, these are still considered as a green energy sources because it is cleaner than conventional gasoline. This means you do not release harmful chemicals such as carbon monoxide into the air which causes damage to the environment. So if you can’t build a solar powered car, consider a different fuel alternative.

Liquid biofuel which is the one used in cars is a natural and renewable domestic fuel that can only be used for diesel engines. This can be made from vegetable oils mostly soy and corn. The nice thing about it is that it contains no petroleum, is nontoxic and biodegradable.

By fueling up with biofuel, you decrease the pollutants in the air because it does not emit anything. Right now, it is the only fuel approved by the Environmental Protection Agency (EPA), passed every Heath-Effects Test of the Clean Air Act and meets the requirements of the California Air Resources Board (CARB).

One example of this is biodiesel which is made from alcohol like methanol and a chemical process that separates glycerine and methyl esters (biodiesel) from fats or vegetable oils. Aside from methanol, some countries have also experimented with corn and sugarcane to create their own version of biofuel.

Glycerine is a common products and this is used in making toothpaste and soap. Since it is quite new, the process of converting it is quite expensive and right now, this is still much more expensive per gallon compared to petroleum.

But if you look at what you pay for it, the returns are huge because you get to do your share to preserve a cleaner environment, an improvement in air quality and a reduction of cancer-causing agents.

A cheaper and primitive way to make bio-diesel is by collecting cooking oil and then processing it. This may not good your car’s engine so be careful if you decide to use it.

If you are skeptic about biodiesels, studies have shown that its performance on the road is just as good as petroleum in terms of power to efficiency, hauling and climbing. You can use this in its pure form or blend with petroleum fuel. The most common mix in the market is 20/80 and is referred to as “B20.” This means that 20% is biodiesel and the remainder is 80%. Another version is the E85 which is fuel composed of 85% ethanol and 15% gasoline.

The best part about using biodiesel is that you only have to make a few changes in your engine to be able to use it. Aside from making the car run, it also helps clean the engine. If you are concerned that this will void the warranty of your vehicle should there be a problem, don’t worry because it doesn’t. In the US, B20 is the most common one available but there are only a few gas stations that carry it.

When car’s first rolled out in the beginning of the 20th century, Henry Ford planned to make these vehicles especially the Model T’s run using ethanol. Tests have even shown that these may also run using peanut oil.

This never materialized because huge oil deposits were discovered and diesel was cheap. It was only when our demand for oil increased in the 1970’s, 1980’s, 1990’s and in the early part of this year that people began to realize that to reduce our demand for foreign oil that we should try using biodiesels and other forms of alternative energy.

Is it too late? Not yet because there is still time to use biofuels and others as green energy sources.

Water can power a car? If you think that’s impossible, well it is already here but this is not yet being made on a commercial scale.

The German automobile BMW has produced the world’s first ever hydrogen powered car. While only 100 of these units were produced, you can already imagine if more of these vehicles are on the road.

The initial model namely the BMW Hydrogen 7 uses the body of the 760i model. Once you pop the hood, you will notice that the engine is different since it uses gas and hydrogen.

This just means we have not yet totally abandoned are dependence on gas. Given more time and money, the current 4.7 miles per gallon it can travel using water alone could hit double digits in the future.

The biggest challenge to using water as a green energy source as opposed to oil in vehicles is the engine. While there are cars around like the Prius which runs on electricity and gas thanks to fuel cell technology, the hydrogen combustion is less than 10 years old so you could say we are only seeing the tip of the iceberg.

To prevent the water from evaporating, this has to be stored in a large, 30-gallon, bi-layered and highly insulated tank so this does not evaporate into compressed gas. Another safety mechanism is the valves which are designed to open should the pressure within the tank exceed 5 bars.

With the success of the BMW H7, the company came out with a new car that is also partly powered by water known as the H2R. While we cannot yet put our garden hose into the fuselage to fill it up, this vehicle uses liquid nitrogen as a fuel.

Tests on this vehicle have shown it can achieve 285hp and reach a top cruising speed of 185.5 miles per hour. It can also accelerate from 0 to 60 miles per hour under 6 seconds.

But why use water? It is because hydrogen combustion is clean so it does not emit harmful gases into the atmosphere unlike cars that run on petrol or diesel that emit carbon monoxide. Studies have shown that it also weighs less than hydrocarbon-based fuels and burns faster than conventional gasoline.

So when can you expect to buy a car that uses water as a green energy source? Hopefully in the next 10 to 20 years. It is really up to the automakers because all we can do is wait until a better and clear car hits the dealership.

Right now, the best option we have are electric cars. Since its introduction in 1999, more people are using it because they don’t want to spend anymore for gasoline that could hit an all time high of more than $110 per barrel.

If water as a green energy source can be used to power a car, why don’t we do the same for solar power which has been around much longer?

1.    Drive A Gas Efficient Vehicle – it stands to reason that the more efficient your car is on gas, the less emissions and the less you have to pay at the pump.   Today, there are many options in hybrid vehicles so if you are in the market for a new car, make the gas efficiency one of your main concerns.
2.    Tire Pressure – make sure your tires are neither overinflated or underinflated as both of these can affect your fuel efficiency.  Make sure to check the tire pressure regularly and adjust as needed.
3.    Car Maintenance – needless to say, if your car is not maintained properly, it will not be running at peak performance.  Be sure to have the oil changed as recommended as well as the other suggested maintenance.  Making sure your engine is running efficiently can improve your gas mileage up to 40%.  It might cost a bit to have these things done, but you will save money with better fuel efficiency and a longer lasting car.

4.    Air Conditioning – You want to use your AC sparingly, but it’s actually more efficient to use air conditioning than it is to roll the windows down.  So, if you must cool off, be sure to set the AC on low and turn it off when the car is cooled – make sure you have the windows tightly rolled up so none of that cool air can get out.
5.    Heated Seats – heated seats use a lot of energy so the next time you want your tushy all warm and comfy, think about the impact to your gas bill and the environment.
6.    Drive Consistently – try to drive at a consistent speed, or better yet, use the cruise control. Keeping your speed consistent will improve your gas mileage and lessen your CO2 impact.  Also, try to keep it under 60 MPH as anything over that really decreases your gas mileage.
7.    Commute – Consider commuting with co-workers or, if your company allows it, working from home.  Even if you do these just a couple of days a week, you will be doing a lot to lower carbon emissions and you’ll be saving a bundle on gas too!

Keeping your car in good condition and being aware of some of these fuel efficiency tips isn’t that difficult and it makes good sense especially when it comes to the longevity of your car. Your efforts will be rewarded with a fuller wallet and a healthier environment!