Conservation In Action

Does conservation actually work?cnservation

Yes! Conservation is an important operational tool that can generate savings of 1,000 megawatts statewide – equal to the output of two large power plants or enough electricity to power 1 million households.

Previous Success

On July 1st and 2nd, 2013 a Flex Alert was called by the California ISO for Northern California. California businesses, residents, local governments and organizations responded quickly and conserved energy.

The graph below represents the day-ahead forecast for energy demand (dotted purple line) vs. the actual demand on July 2nd, 2013 (solid blue line). Not only did demand drop overall but Californians also did their part to put-off using energy until after peak hours, illustrated by the bump in energy use at 8 pm! (20:00 hrs on the graph)

Energy Outlook, July 2, 2013

grid-7-2

Without Conservation

Compare the graph above to a typical non-Flex Alert day, pictured below. On days such as these, when there is no call for conservation, the actual demand (solid blue line) often exceeds day-ahead predictions (dotted purple ine). This is not problematic, unless demand threatens to outstrip supply. When officials become aware of a potentially precarious day, they call a Flex Alert, and Californians work together to bring demand down.

Energy Outlook, June 27, 2013

grid-7-2