EPRI is working with a variety of project partners including PG&E and LINC Housing Corporation to formulate Efficient Retrofit Packages (ERPs) for an Integrated Demand Side Management (IDSM) Retrofits project, with multiple locations in California. The focus of the project is on efficiency retrofits for Multi-dwelling Units by creating appropriate ERPs, which provide building owners, tenants, and the utility benefits in terms of cost savings and reduction of demand on the grid. In doing so, EPRI hopes to demonstrate that ERPs can be standardized, non-intrusive, and cost effective.[1]

EPRI is particularly engaged in the data monitoring and analysis aspects of these demonstrations. EPRI’s top priority is focusing on customer comfort in implementing these energy efficiency retrofit packages. To this effect, EPRI deployed circuit-level monitors in each of the units to measure current, plug loads, and indoor air quality. EPRI also utilized modeling and other existing monitoring tools for whole building data collection. Using these data, EPRI is working to further understand broader energy usage patterns and energy efficient device performance in multifamily communities, particularly with regards to low-income communities. These findings will inform future retrofit projects to the benefit of LINC, utilities, and other stakeholders.

The goals of this project include:

• Demonstrate how near-ZNE retrofits can be cost effectively scaled with a minimally invasive, “occupant first” approach;
• Implement data collection and analysis pipelines to gain insight on the operation and performance of the installed energy efficiency measures as well as monitor customer comfort within the community;
• Establish M&V models that can lead to “pay-for-performance” for energy efficiency using data at the individual level to meet the requirements of SB 350;
• Demonstrate how various types of distributed energy resources including solar, energy efficiency, and demand response can be integrated with the electric grid.

For some locations, such as the Seasons at Ontario senior community, unique ZNE related measures were also implemented, such as: • High Efficiency Pool Heater • High Efficiency Pool Pump • Energy Efficient Appliances • Outdoor LED Lighting • Smart Power Strips • High Performance Windows and Doors • Heat Pump Water Heaters • Energy Efficient HVAC [2]