October 21, 2026
Glendale increases Renewable & Zero Carbon Resources from 50% to 64%
Glendale has made considerable progress from 2024 to 2025 in transitioning to a cleaner grid. GWP’s latest Power Content Label shows the percentage of renewables and zero-carbon resources went from 50% in 2024 to 64% in 2025, a 14% increase! This includes a 14% increase in Eligible Renewables, thanks to a 5% increase in solar and 8% increase in wind.
Solar playing a larger part of Glendale’s resource mix
Of note, solar resources have increased from 0% in 2010 to 20% in 2024 to 25% in 2025. A significant amount of the increase in solar is due to the commissioning of the Eland Solar & Storage Project which came online in late November, 2024. Progress is also being made with the first city-owned solar sites starting to come online and more in development. (Expect a GEC blog post on that topic specifically in the coming days.)
And there is more solar on the horizon! GWP recently signed a 30-year Power Sales Agreement (PSA) with Southern California Public Power Authority (SCPPA) for the purchase of 25 MW of renewable solar energy from the utility scale, Milford Solar Phase II Project, in Beaver County, Utah. Glendale’s eligible renewables will take an even larger jump after this project comes on line approximately December 31, 2026. Per a recent staff report, the “Millford Solar II is expected to boost solar energy to an estimated 30%, increasing the total renewable energy to an estimated 49%, and overall clean energy to 68%.”
Meanwhile, Glendale’s fossil fuel use dropped from 50% in 2024 to 36% in 2025, due to big reductions in natural gas, coal and “unspecified power”, a large portion of which is fossil fuel. Coal was removed from GWP’s power supply as the Intermountain Power Project (IPP) in Utah stopped burning coal to supply power to six CA cities, including 1.704% to Glendale. The IPP has now transitioned to a blend of 70% natural gas and 30% green hydrogen.
City of Glendale 2025 Power Content Label:

This table tracks recent progress:

Still a ways to go to hit 2030 Eligible Renewables Target of 60%
California’s Renewables Portfolio Standard (RPS) is one of the state’s key programs for advancing renewable energy. The program, administered by the Public Utilities Commission, sets continuously escalating renewable energy procurement requirements for the state’s load-serving entities, such as GWP. The eligible renewables target for December 31, 2020 was 33%. The next target is 60% by 2030.
Historically, Glendale’s Eligible Renewables have been: 20% in 2014, 22% in 2015, 25% in 2016, 29% in 2017, 31% in 2018, 32% in 2019, 33% in 2020, 35.30% in 2021, 35.20% in 2022, 35.30% in 2023, 31% in 2024 (a drop below requirements), and a marked increase of 45% in 2025. Glendale still has a way to go to meet the 2030 RPS target of 60% and further to go still in order to reach City Council’s mandated goal of 100% Clean Energy by 2035. Recent upticks in clean energy resources and projects are encouraging.
The Grayson battery is online & supplying daily power!
In addition to the Eland Project and Milford Solar Project boosting our future clean energy numbers, the 75 MW Battery Energy Storage System (BESS) at the Grayson site is now providing local, clean power! The BESS came online in July and now supplies up to 4 hours of peak power daily, from locally generated solar supplemented with procured solar.
GEC Members can be very proud of the advocacy efforts over many years that resulted in the acquisition of this local, clean energy resource! Kudos to GWP for navigating difficult tariff situations and the long journey through the transportation systems of Los Angeles to bring the BESS safely to its new home and online for this season’s intensely hot finale.
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Power Content Labels, 2016-2024
2024 Power Content Label
2023 Power Content Label
2022 Power Content Label
2021 Power Content Label
2020 Power Content Label
2019 Power Content Label
2018 Power Content Label
2017 Power Content Label
2016 Power Content Label
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