The Economic Case for Wind, Solar Energy In Africa

To meet skyrocketing demand for electricity, African countries may have to triple their energy output by 2030. While hydropower and fossil fuel power plants are favored approaches in some quarters, a new assessment by the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) has found that wind and solar can be economically and environmentally…

Germany Converts Coal Mine Into Giant Battery Storage for Surplus Solar and Wind Power

Germany is embarking on an innovative project to turn a hard coal mine into a giant battery that can store surplus solar and wind energy and release it when supplies are lean. The Prosper-Haniel coal mine in the German state of North-Rhine Westphalia will be converted into a 200 megawatt pumped-storage hydroelectric reservoir that acts like a giant battery. The capacity is enough to…

How ‘Green’ Is Hydropower?

People have harnessed energy from moving water for thousands of years. Greeks used various types of water wheels to grind grain in mills more than 2,000 years ago. In the late 1800s, people figured out how to harness the power to produce electricity. Throughout the 20th century and into the 21st, hydropower has expanded, producing about 17 percent…

David Suzuki: Humanity’s Fate Depends on the Choices We Make Today

We’re living in a time of records. More renewable energy came on stream in 2015than ever—147 gigawatts, equal to Africa’s entire generating capacity—and investment in the sector broke records worldwide. Costs for producing solar and wind power have hit record lows. Portugal obtained all its electricity from renewable sources for four straight days in May—the longest achieved by any country—and Germany was able…