A cost-effectiveness test that examines the impact of energy efficiency programs on utility rates. The costs included in the RIM are program overhead and incentive payments and the cost of lost revenues due to reduced sales from energy efficiency implementation. The benefits included in the RIM are the avoided costs of energy saved through the efficiency measure.

The buying and selling of energy efficiency related goods and services for existing residential buildings.  A subsection of the home improvement market.

A series of coordinated activities that support strategic objectives to increase the adoption of residential energy efficient products and practices. Programs are delivered by many different types of organizations and their partners, including utilities, state and local governments, contractors, and nonprofits.

See "Home Energy Upgrade."

See "Revenue Stream."

Payment from customers, contractors, business partners, or other sources in exchange for program products or services. Also known as “revenue sources,” “program revenue,” and "program income."

Capital that is designated as funding for a specific purpose (e.g., to fund energy efficiency or renewable energy improvements). Typically, as loan repayments are received, those funds are consolidated and lent out to new borrowers, thus the revolving nature.