BEST SOLAR ENERGY
Wind energy is too expensive and it needs hundreds of petroleum originated lube oil to operate eah day, and the gearbox used for these things is immense and expensive. Also windmills screw up the environment both visually and practically.
Solar energy is free but there is no technology available to the public that gives more than 10-15% efficiency. It pays off but only in long term so unless you want to invest a decent capital in it forget about it.
Biomass is energy consuming because the process to refine the raw material into fuel is too expensive and not applicable at the moment for the broad mass.
Hydroelectric is good only where there are water falls or dams, but they also screw up the environment. E.g. if you cut off a river the whole nearby ecosystem collapses.
Power Plant Development | Technical Consulting Services
