You must first perform a patent search and I suggest using a patent agent or attorney to do so and since your product is an "idea" or "process" it would be wise to consult a professional to check the patent status. If it is shown that you are not infringing on someone' else's idea, then you can begin to think about how you can proceed. Energy alternatives are a hot topic so just be prepared for lots of varied opinions about the viability of your project....

Jim
www.jimdebetta.com