solarray

I’m noticing a cross-over now between zero net energy building and city agriculture, two subjects I follow and publish links lists on.  T...

Zero net energy is a growing body of practice in which buildings produce all the energy they consume.  It is the application of high effici...

Treehugger had a squib about a recent Brookhaven Labs analysis of lifecycle cost assessment for photovoltaic panels . There wasn't a d...