What makes a building sustainable? | Archive Titles

what’s the most cost-effective energy technology%3F
Renewable	£/m² gross floor area	kg of carbon/m² gross floor area	£/kg of carbon saved
Ground source heat pump	32.81	1.32	24.85
Biomass heating	28.95	4.49	6.45
Solar water heating	14.1	1.08	13.05
PV rooftop	£850/m² panel	11.3m² panel	75.22
Wind turbine	£2000/kW	290/kW	6.9