Wind turbines kill flying animals (particularly bats) and can hum in the wind. Hydro dams kill fish, flood valuable real estate, and cause huge devastation when they fail. Coal fired plants cause environmental damage where the coal is mined and in toxic compounds and carbon emissions, and cause haze that reduce visibility. Photovoltaic solar
panels manufacture produces chemical wastes and the metals in them have to be mined, too. There is no perfectly safe, completely environmentally friendly technology.
If we decided to set our house up to exist off-grid, we'd likely install solar
panels on the south-facing roof, add a windmill or two to our roof line, and install a bank of batteries in the crawl-space to store energy. We'd also likely change some of my home wiring to take advantage of low-energy LED lights
and my DC battery
power source. I have gas heating, so we'd need to convert that to propane
Even with all these changes we'd still have to re-think some of my lifestyle choices. The hot tub would probably have to go. We'd need to be more judicious about what lights
we leave on, like the lights
we have that come on automatically after dark. We might need to hand-wash our dishes sometimes, turn-off and un-plug more things when they're not actively being used, and not leave the TV on as much.
Mind you, a lot of these things are stuff we could do without going to solar and wind. I like my hot tub, and feel safer in our home with the lights
that come on in the hallway and living room when night falls. The price of these things is needing to buy electricity, and that electricity has to come from somewhere.
I won't judge modern nuclear power plants based on the events in Japan. Those reactors were designed and built in the 1960s, and struck by both an 9.0 earthquake and tsunami that wiped out many of their support buildings. My hope is that future US power plants will be built using "inherently safe" designs that rely on the forces of nature to keep the plant safe and stable instead of external power sources and cooling water to remain safe in an emergerncy.
Would such a system be perfect? No . . . but I think it's safer than coal, which is what provides the majority of electric power here.