Home      About      Contact      Submit an Item      
Passive    PV    Homes    Commercial    Wind    Projects    DIY    Resources    Tools    Materials    
Watch Windtronics Interview Thumbnail

Windtronics Interview Video

Watch Woman in 84 Sq Ft Home Thumbnail

Woman in 84 Sq Ft Home Video

Watch Solar Generation Road Trip 2 Thumbnail

Solar Generation Road Trip 2 of 3 Video






Terms for Green Architecture, Building & Energy

This glossary includes more than 300 solar terms, as well as hundreds of additional sustainable design and construction terms.

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z    All  

HSPF (Heating Season Performance Factor):

Definition: A measurement of the seasonal efficiency of an electric heat pump using a standard heating load and outdoor climate profile over a standard heating season. It represents the total seasonal heating output in Btu divided by the total seasonal electric power input in watt-hours (Wh). Thus, the resultant value for HSPF has units of Btu/Wh.