TABLE 1-2 COMPARATIVE ANALYSIS Anytown, USA (2050 Baseline: 5.5 Million Metric Tons CO,e) (% reduction from (Cost per ton 2050 CO,e baseline) CO,e abated) Policy Scenario Efficacy Cost-effectiveness Mandate efficiency 6.9% to 8.8% -$130 to $5 retrofits for homes EXISTING BUILDINGS Mandate efficiency 7.9% to 10.5% -$132 to -$30 retrofits for commercial buildings Require zero-energy 4.1% to 5.6% -$132 to -$25 capable homes BUILDINGS NEW Require zero-energy 6.5% to 8.9% -$120 to -$48 capable commercial buildings High-density 2.4% -$1,333 to -$702 URBAN PLANNING residential development Incentives for 3.9% $15 to $139 SUPPLY ENERGY distributed PV $20 carbon tax 11.3% $20 FINANCIAL MECHANISMS $50 carbon tax 20.6% $50 CO,e = carbon dioxide emissions