Demand Response Assessment

Demand response (DR) is defined as changes in electric usage by demand-side resources from their normal consumption patterns in response to changes in the price of electricity over time, or to incentive payments. The goal of DR is to reduce electricity use at times of high wholesale market prices or when system reliability is jeopardized. DR programs by utilities may offer customers an incentive to reduce or shift their peak load to a specific time of day.

DR assessment may include estimating the demand response potential and/or evaluating the effectiveness of demand response programs. EES Consulting has the expertise to evaluate both the potential for and effectiveness of demand response.

Western Public Agencies Group

EES Consulting (EES) has outlined direct load control technologies and the associated potential peak demand savings for WPAG utilities.  Direct load control is a specific kind of demand response where technology cycles or shuts down customer equipment during peak load events in order to reduce demand charges and the need for new capacity. Residential heating, cooling, and water heating, are specifically addressed by this report. While direct load control is not a new idea, it is currently gaining momentum due to improved technology, changing wholesale power prices and successful pilot programs in the Pacific Northwest Region

City of Port Angeles

The City of Port Angeles has a variety of demand response pilot programs underway in conjunction with the Bonneville Power Administration. EES Consulting is providing the process and impact evaluation for these projects.

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Clark Public Utilities

EES Consulting has assisted in strategic planning, engineering and rate setting activities for CPU for the past twenty years.  Activities completed include load forecasting, power supply cost forecasting, feasibility studies on generation projects, integrated resource planning, and conservation implementation planning.  EES Consulting has issued requests for proposals (RFPs) on Clark’s behalf for power generation projects, natural gas supplies and power purchases.

Los Angeles County Aliso Canyon

The County of Los Angeles asked EES Consulting to evaluate alternatives to mitigate the need to withdraw natural gas from the Aliso Canyon storage facility. The facility was used to supply gas during peak winter usage as well as to supply natural gas-fired generators during peak summer demand, but it was shut down after a massive leak released more than 100,000 metric tons of methane. EES found that measures put in place by utilities in Southern California to maintain system reliability without utilizing Aliso Canyon were working, and that resuming natural gas injections was unnecessary in the near term. In the longer term, the acquisition of demand response, energy storage, and energy efficiency could effectively displace the need for Aliso Canyon. EES also provided a series of recommendations to improve the implementation of the mitigation measures. (Image:Earthworks)