The US Department of Energy's National Renewable Energy Laboratory (NREL) has updated its Best Research-Cell Efficiency Chart with the inclusion of a new cell category – Hybrid Tandems. “This category ...

There are roof shapes and ratios that maximize heat retainment and energy efficiency and, interestingly, ancient Italian architects and builders seemed to know it, too. While serving as a visiting ...

NREL has updated its Best Research-Cell Efficiency Chart. The tool highlights the highest confirmed conversion efficiencies of research cells for a range of PV technologies. “Everything up to the end ...

The Department of Energy set stricter energy efficiency standards that are supposed to save consumers money while cutting down on pollution. The Department of Energy set stricter energy efficiency ...