Grid-Interactive Electric Water Heaters Become Focus for Peak Load Alliance
The Peak Load Management Alliance (PLMA) has announced the formation of PLMA's Grid-Interactive Water Heating Interest Group (GIWH-IG). Grid-interactive water heating is the emerging consensus term describing high-speed, two-way communication between the electric water heating appliance and the electric utility, balancing authority, independent system operator, or aggregation entity. When equipped with a grid-interactive control, a large-capacity, electric thermal storage water heater becomes a "battery" for storing electric energy and has the ability to follow locational marginal prices, better integrate renewable energy, and provide fast regulation service.
"This new PLMA interest group will provide a focused platform for information sharing and market development efforts in order to move grid-interactive water heating technologies from pilot project to market introduction,†said PLMA Chairman Paul Tyno of REGEN Energy. "The topic might not be as sexy as electric vehicles or web-enabled thermostats, but PLMA sees a critical market need to significantly and rapidly raise the visibility for this niche opportunity and its potential to deliver energy storage and smart grid optimization.â€
"The benefits of this important technology aren’t well understood, as evidences by recent Department of Energy efforts to restrict or ban large-capacity electric resistance water heaters,†said Connett. "This group will show that electric resistance water heaters can be a very useful tool to optimize energy use and increase efficiency in the home and on the electric grid.â€
Gary Connett, the PLMA Interest Group Leader, is Director of Demand Side Management and Member Services for Great River Energy, a not-for-profit electric generation and transmission cooperative which provides wholesale electricity to 28 member distribution cooperatives in Minnesota and Wisconsin. Those member distribution cooperatives distribute electricity to approximately 650,000 member accounts – or about 1.7 million people.
Great River Energy is a utility leader in peak load management and demand response. The cooperative has more than 352,000 controlled loads in member homes and businesses. Controlling these loads on a hot summer day allows Great River Energy to reduce peak demand by more than 300 megawatts, or 13 percent.
"We are now beginning to explore grid-interactive load management that would allow Great River Energy to better utilize our renewable energy resources and interface with the wholesale energy market. As a leader of this PLMA Interest Group, I intend to share my knowledge and skills to help the organization address the challenges and opportunities in the rapidly changing energy landscape.†added Connett.