Substantial growth in U.S. renewable-energy capacity will undoubtedly have a positive environmental impact. But the reduction in carbon emissions renewable-energy advocates aim to achieve does not exclude potential benefits to consumers. Because as renewable-energy generating capacity has expanded significantly over the last decade, household... U.S. household energy costs hit 50-year low
Substantial growth in U.S. renewable-energy capacity will undoubtedly have a positive environmental impact. But the reduction in carbon emissions renewable-energy advocates aim to achieve does not exclude potential benefits to consumers. Because as renewable-energy generating capacity has expanded significantly over the last decade, household... 
To achieve mass adoption, fueling infrastructure for hydrogen fuel-cell vehicles will have to be hugely expanded. It's a problem similar to that faced by battery-electric cars, but charging stations are far cheaper and easier to install—and can rely on existing grid infrastructure for their supply of electricity. Hydrogen fueling stations...