There are more than 17 million multifamily households nationwide, yet they remain a significant and mostly untapped opportunity for energy efficiency gains. Many cities and states that have embraced energy retrofitting as a job creator and boon to both the environment and economy have yet to address potential savings in multifamily properties, primarily because of obstacles not faced by single family and commercial properties. This paper discusses two barriers -- a lack of information and financing -- that stand in the way of multifamily energy retrofits.

Reviews and summarize energy efficiency financing models and strategies. Models are analyzed according to funding sources, program structures, limits to scale, repayment vehicles, and project risks. Strategies consider applicable building sectors, models, levels of establishment, growth potential, advantages, and disadvantages.

This plan was jointly developed by gas and electric companies in the state of Massachusetts to set aggressive goals for 2013-2015 through a sustained and integrated statewide energy efficiency effort in accordance with Green Communities Act.

This report describes different approaches to energy efficiency finance taken by utilities.

This publication outlines capital leveraging models and examples from across the country in which public funds were used to influence energy loan program capital.