I really don't' believe "best" is a great term. Each source has a cost, and a benefit. In Wisconsin, solar power isn't going to be a reliable source of energy, but likely will in New Mexico. I think we need to get away from the one size fits all mentality, that's what's got us into trouble in the first place
Second even hydro power has its costs... such as disrupting spawning activities of endangered species of fish as well as the mega-tons of gravel and sand that needed to be extracted to develop the concrete dam structure. These are permanent damages to the ecosystem, The same is true with ALL power sources Ultimately we will continue to need power and our need will increase as our population and need for power grow, its just a matter of what we are willing to pay for it... If we don't want new, different , and more power, the cost is that we stop driving our cars, stop heating our houses to 70F all winter and cooling our houses down to 70F in the summer There are rumors of 4-6 more power plants being built in the upper Midwest, as far as I know they are all planning to utilize cheap abundant coal. Charles R. Bomar PhD Professor of Biology University of Wisconsin-Stout Menomonie, WI 54751 [EMAIL PROTECTED] 715-232-2562