Demonstrating Code-compliant Energy Storage Systems and Their Capabilities for Grid Harmonization
Evaluates the effectiveness of energy storage in zero net energy ready homes in terms of managing customer costs, providing grid harmonization and reducing grid carbon when applied as per Title 24 and when applied in the mode that is standard for
The project team has identified the project sites along with participating builders. Contractual and legal terms were completed to enable data collection from customers. The team has completed evaluations of various methods to control and aggregate energy storage systems behind the meter. In addition, the team has been working with various vendors and evaluating the capability and capacity of their residential energy storage systems to determine which will be installed. As of April 2023, the project team has deployed four residential lithium-ion batteries in the northern climate zone and is in negotiations with several homeowners in the northern, central valley, and coastal climate zones.
This project will install and connect energy storage units to existing solar panels at a minimum of 15 new construction single-family homes in three different California climate zones. The recipient will test and evaluate the control and operation of the systems to capture the best operational practices of the systems for the residents and the grid. The recipient will also provide insight into any future changes to Title 24 building code to help realize these values.
Connecting energy storage systems with mandated solar energy generation systems in new residential construction can result in reducing customer demand charges by appropriately controlling the generation and storage for the customers' loads particularly during periods of peak rates.
Controlling solar-plus-storage systems in new residential construction can result in maximizing solar energy generation during high generation, low demand hours that can reduce reliance on power plants needing to ramp up production to meet demand and relieve pressure on the stressed grid infrastructure.
In October 2019, public safety power shutoff events left nearly two million Californian utility customers without electricity during two separate weekends. Customers with that only had solar PV were often unable to take advantage of renewable power. Adding energy storage and properly controlling the combination should ensure critical loads stay active during these types of events.
Key Project Members
TRC Engineers, Inc.
Electric Power Research Institute, Inc.
TRC Engineers, Inc.