Category: General Passive Strategies


White is the Greenest Color

Text and photos by NORBERT M. LECHNER Update: 2017 – My apologies. The organization that runs Solar Today, the American Solar Energy Society, has closed the server that hosted Solar Today. Because of this,...


Choose the Low-Hanging Fruit

This article was first published in Solar Today in the Nov/Dec 2011 issue. By NORBERT M. LECHNER For most people, “solar energy” invokes the technologies of photovoltaics (PV) and, more generally, active solar systems...