Multifamily Energy Efficiency Retrofits: Barriers and Opportunities for Deep Energy Savings

The potential for energy reductions in multifamily buildings is enormous; by pursuing cost-effective, deep-energy retrofits that reduce energy consumption by between 15 and 30 percent, the annual energy bill cost savings nationally could be nearly $3.4 billion.8
However, there are significant hurdles to achieving these levels of energy savings in the multifamily building stock. These barriers have hindered multifamily energy efficiency retrofit efforts for many years and are still only rarely effectively addressed. Utilizing the experience and research from Regional Energy Efficiency Organizations (REEOs) across the country, this paper aims to address these barriers by answering the following questions:
  • What is the current state of the multifamily sector in the United States?
  • What has been most effective in the implementation of utility, state, and local multifamily energy efficiency initiatives?
  • What else can be done to support energy efficiency in multifamily buildings, beyond traditional utility or municipal programs?
  • How can the REEOs play a role in supporting efforts to increase the energy efficiency of multifamily buildings?
The answers to the questions above are included throughout this report and are intended to inform energy efficiency program administrators and policy makers as they look to energy efficiency in multifamily buildings as a part of broader energy savings and sustainability efforts.

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