Several years ago I read about the problems restaurants faced with the disposal of used cooking oil. If you have ever parked behind a fast food eatery you may have noticed a dumpster area for trash disposal as well as a container for storing used vegetable oil. The area is often tucked away behind the building to prevent the public from seeing and smelling the waste. Restaurants pay companies to haul away the solid and liquid waste.
I also learned many years ago that the diesel engine was invented by Adolf Diesel to run on peanut oil to help farmers with an affordable fuel source. Most diesel fuel now is petroleum based. Individuals can still run their diesel vehicles on vegetable oil by using a Grease Car type system or by converting the vegetable oil to biodiesel which requires a process and equipment using chemicals. I have always wanted to purchase a used diesel automobile and convert it to veggie oil. Imagine free fuel that is also good for the environment.
Recently I have been thinking about generating electricity with used vegetable oil from restaurants using a diesel generator. I was surprised to see that a company has developed such a product for restaurants to generate electricity and hot water from used oil (picture shown above). The unit even filters the waste oil prior to using it to generate electricity and hot water. The product is called the Vegawatt Power System. For more information visit web site.