1) Alternative energy 2) Solar architecture
Found on
https://www.crosswordclues.com/clue/plusenergy
PlusEnergy is a term used in building design to describe a structure that produces more energy than it uses. The term was coined in 1994 by Rolf Disch when building his private residence, the Heliotrope as the first PlusEnergy house in the world. Disch then went on to refine the concepts involved with several more projects built by his company Rol...
Found on
http://en.wikipedia.org/wiki/PlusEnergy
No exact match found.
