When EPA proposed tightening the national ozone standards a few years ago, President Obama told the agency to stand down. The existing standard of 75 parts per billion (ppb) wasn’t due for review, and there was concern stricter standards might harm the economy. It’s a concern that hasn’t diminished as the agency starts regular review of… Keep reading →
Photovoltaic (PV) energy, the conversion of sunlight to electricity, was discovered in the late 1830s, followed by usable PV cells developed in the early 1950s. Despite its history, only recently has the U.S. solar market really started to take off. Driven by the volatility of energy prices from traditional sources such as coal, gas and… Keep reading →
