United Solar Ovonic

Fluctuating gas and electricity costs are driving the building industry's interest in solar power systems and fueling the market's growth. More

Solar power generation—or photovoltaics (PV)—has been around for decades, but only in the past few years have homeowners and builders begun to seriously consider it on a wide scale as a way to reduce energy costs. More

If you were going to build a model of a highly energy-efficient house, you probably would not choose to do so in Paterson, N.J., a rust-belt city near the Passaic River that owes its existence to a large waterfall that none other than Alexander Hamilton exploited for mechanical power. More