The 10 Stealth Economic Trends That Rule the World Today, article.
Since Jimmy Carter was sworn in as president, the price of solar cells has fallen over 99 percent. No, that’s not a typo. And the exponential cost-drop shows no sign of slowing down, with dozens of new technologies in the pipeline. Installation and land costs are falling too. What this means is that in sunny states like Arizona, solar can already compete with fossil fuel electricity even with zero government subsidies. In fact, rooftop solar panels are becoming so popular that utility companies are trying to tax solar power in order to pay for grid maintenance!
Wow. That one could really overturn some power balances.