This document promotes a new financing option called Commercial-Property Assessed Clean Energy (C-PACE) loans for implementing solar energy and efficiency upgrades in commercial real estate portfolios. It claims investors can get 136% of their investment back in the first year through returns of up to 72% internal rate of return. The financing allows 35% down payments with the full amount recovered plus 36% within one year due to tax credits and accelerated depreciation. It benefits both building owners and tenants with lower energy bills.