Capital cost: $268,591

Lifetime energy cost savings: $-102,521

Net lifetime savings: $-371,112

Benefit-cost ratio: -0.4

Number of homes: 18

Average proposed capacity per residence (Btu/hr): 15,259 Btu/hr

Excess generation capacity needed (kW): 21 kW

Expected average coefficient of performance (COP): 3.64