During 2011, SGIP projects delivered over 760,000 MWh of electricity to California’s grid; enough electricity to meet the demand of over 116,340 homes for a year.
Non-renewable projects supplied nearly 77% of the electricity delivered by the SGIP during 2011.
IC engines (both renewable and non-renewable) provided nearly 42% of the overall delivered electricity in 2011, followed by gas turbines (non-renewable) at 25%, and fuel cells (both renewable and non-renewable) at 23%.
Total SGIP project capacity coincident with the 2011 CAISO peak was over 105 MW representing an aggregate peak hour impact of 0.44 kWh per kW of rebated capacity.
Gas turbines and fuel cells had the highest CAISO peak hour capacity factors at 0.83 and 0.70 kW of generating capacity for each kW of rebated capacity, respectively.
Efficiency and Waste Heat Utilization
SGIP projects consumed nearly 7 trillion Btu's of fuel during 2011 and recovered close to 1.4 trillion Btu's (or 20% of the energy consumed as fuel) to help meet on-site energy needs.
Over 300 SGIP projects recovered waste heat to help meet on-site heating needs; another 83 recovered waste heat to help meet on-site heating and cooling needs.