Per-household incentive for improving energy performance by 20%

Source: Proposed in the American Clean Energy and Security Act (ACES) of 2009


Additional incentive for each 5% improvement over 20%

Total not to exceed 50% of project costs


Annual payback of insulation/air-sealing

Source: Sustainable Spaces, for this and remaining items. Based on applying the ARRA tax credits to a 1,100-square-foot attic, $1.50 per square foot


Annual payback of a 96%-efficient furnace

$6,000 furnace, 2,200-square-foot home


Percentage of insulation project costs that derive from labor (more jobs created)


Percentage of solar electric project costs that derive from labor (fewer jobs created)


Average California utility rebate for solar electricity

3.5 kWh solar at $1.40 per watt rebate

$ 165

Average California rebate for insulation

1,100-square-foot attic, 15 cents per square foot rebate