Minnesota's new law requires investor-owned utilities to get 1.5 percent of their energy from solar power by 2020. But the law contains other provisions that will help boost the state's adoption of solar energy.
On the Great Plains, the gusts ahead of a strong cold front can deliver thunder, lightning, hail and downpours. Also: A surge in electricity from wind farms big enough to make the power grid go haywire if it caught utilities off guard.
As a Midwest biomass group promotes a goal of drawing 10 percent of the region's heating energy from wood fuels by 2025, more questions are sure to arise about whether that amount of fuel could be harvested sustainably.
Factors leading to Midwest gasoline price spike not seen as long-term trend • Musk tells climate advocates to turn tables on skeptics • Towns along scenic stretch of Mississippi River seek frac sand mining ban • Michigan lawmakers raise concerns about Ontario nuclear waste site