Definitions

Less, Brennan, Iain S Walker, and Quinn P Graessle. Defining Power Efficient Residential Electric Appliances and Equipment. Berkeley, Ca: Lawrence Berkeley National Laboratory , 2026.

Sulzer, Matthias, Sven Werner, Stefan Mennel, and Michael Wetter. "Vocabulary for the fourth generation of district heating and cooling." Smart Energy 1 (2021) 100003.