Reply #92: Currently, large wind turbines are generating the cheapest

[ladjf]

electricity. Solar is good but still rather pricey. On the horizon are geothermal, wave and tide generators. Scientists are studying the possibility of harnessing the power of the Gulf Stream.
New wind turbines are up to 6 or 7 MWatts. One of these would power about 1300 homes.

The changeover isn't going to be quick or easy. But, after renewables assume a large piece of the global requirements, the human race will be able to turn its thoughts to more creative activities.
Face it, for years, the planet has been at the mercy of the oil, coal and gas companies.

By the way, for the nuclear advocates, I must point out the dangers of meltdown and waste storage. Nuclear waste will remain radioactive for 200,000 yrs. That's a problem. Some have even considered the possibilities of launching it into outer space.