Opening Access

The California ISO is one of 10 independent system operators in North America. Collectively, they deliver 2.2 million gigawatt-hours of electricity annually and oversee more than 270,000 miles of high-voltage power lines. Two-thirds of the United States is served by these independent grid operators.

Studies confirm that organized wholesale competitive energy markets improve grid reliability, optimize use of the transmission system, lower wholesale prices, improve power plant availability, and reduce market barriers for clean energy resources and demand response providers.