Tag Archive for: virtualpowerplant

The California utility PG&E is trying out two different models with Tesla and Sunrun to help ease summer grid stress.

As a demand-response manager for California utility Pacific Gas & Electric, John Hernandez knows all about how hundreds or thousands of battery-equipped homes can be remotely controlled to serve the grid’s needs, much as central power plants do. These aggregations of controllable home solar-plus-battery systems are called virtual power plants, or VPPs for short.

The question is, what kind of power plants should these VPPs be modeled after? This summer, Hernandez’s team at PG&E will be testing two types of VPPs that use similar tools but different methods to help keep the grid stable during hot summer evenings.

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Source: Canary Media

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Sunrun plans to create a 30-MW virtual power plant by enrolling up to 7,500 rooftop solar and battery systems in PG&E’s footprint.

Solar and battery storage provider Sunrun announced plans on Monday to create a 30-MW virtual power plant by enrolling up to 7,500 existing and new rooftop solar and battery systems in Pacific Gas & Electric’s footprint.

Storage systems that enroll in the program will be asked to discharge power to the grid every day between 7 p.m. and 9 p.m. from August through October, a period when electricity demand in California tends to be the highest. Customers will be compensated with a $750 upfront payment and be given a free smart thermostat.

While virtual power plants are not a new technology, this one is different in that it is laser-focused on the peak of the summer, said Scott Peattie, director of business development with Sunrun. “[I]t will be reliably dispatching every day, so we’re not going to be waiting for an emergency alert from [the California Independent System Operator,]” Peattie said.

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Source: Utility Dive

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