California's solar power has grown significantly in recent years, and it's having a major impact on the state's energy costs. The California ISO grid has become a model for renewable energy production, with wind, water, and solar power working together to meet electricity demand. This is not surprising, given the abundance of sunshine and wind resources available in the state.
The results are clear: the California ISO grid has the lowest wholesale electricity prices in the US, indicating a highly stable grid. This is a major achievement, especially considering that there have been no blackouts since 2020. The fact that wind, water, and solar power can meet 100% of demand for most days is a testament to the state's commitment to renewable energy.
The data speaks for itself: in 125 out of 149 days, wind, water, and solar power reached more than 100% of electricity demand at some point in the day. This is an average of 4.9 hours per day, which is a remarkable achievement. The fact that this has been sustained for 59 straight days is a clear indication of the reliability and efficiency of the California ISO grid.

The California ISO grid's success is not just a result of luck or circumstance. Rather, it's a testament to the state's commitment to investing in renewable energy technologies and infrastructure. The abundance of cheap wholesale electricity from sunshine, wind, and water is a game-changer for the state's energy landscape.
The US Energy Information Administration provides detailed information on wholesale electricity prices, among other things. Mark Z. Jacobson's data and graphs are available on this page, which offers a wealth of information on California's energy production and consumption patterns.
The fact that wind, water, and solar power can meet 100% of demand for most days is a major achievement. It's also a testament to the state's ability to balance supply and demand in a way that's both efficient and reliable.

This is not just good news for California residents; it's also good news for the environment. By relying on renewable energy sources, the state can reduce its carbon footprint and contribute to a cleaner, healthier planet.
The success of the California ISO grid is an inspiration to other states and countries around the world. It shows that with the right policies and investments in renewable energy technologies, it's possible to create a more sustainable and equitable energy system.
As we look to the future, it's clear that California will continue to be at the forefront of the clean energy revolution. The state's commitment to renewable energy is just the beginning – there's still much work to be done to ensure a sustainable energy future for all.
The abundance of cheap wholesale electricity from sunshine, wind, and water is a game-changer for the state's energy landscape.
