Environmental impacts of optimal designs of community energy systems under different CO2 footprints of electric grids

This work determines optimal energy system configurations that minimize CO2 emissions under three typical grid electricity generation sources: (a) mostly nuclear and hydro; (b) natural gas; (c) coal. Benefits of implementing ground source heat pump (GSHP) and air source heat pump (ASHP) are compared to using combined cooling-heating-power (CCHP) system considering meeting cooling, heating, and electricity demands of consumers. GSHP is modeled …