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California ISO @californiaiso.bsky.social · 1d

In 2020, the ISO-managed grid had just ~122 MW of battery storage. Since then, more than 14,000MW 🔋 have been added to the grid—a real game changer for reliability during summer periods of peak demand.

⚡ Batteries are powering forward reliability. www.latimes.com/environment/...

California made it through another summer without a Flex Alert. Thank batteries, experts say

Batteries that pair with clean solar and wind energy or just bolster electrical grids in general have completely taken off and are making a big difference on the California grid.

www.latimes.com

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California ISO @californiaiso.bsky.social · 3d

October is Energy Awareness Month! ⚡

Let’s bring our energy together for a brighter, cleaner future. Small changes can make a big impact—check out energy saving tips at @flexalert.bsky.social and FlexAlert.org.

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California ISO @californiaiso.bsky.social · 3d

Last week, our President & CEO, Elliot Mainzer, joined government leaders and environmental partners at the Los Angeles Business Council Sustainability Summit to discuss the rising energy demand and innovations for a clean energy future in California. ⚡

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California ISO @californiaiso.bsky.social · 4d

Our September 2025 key stats document is now available. ⚡

Get insight into all the resources that bolstered our power grid and enhanced reliability during the peak summer season.

💡 Learn more: ow.ly/yER850XbcY0

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California ISO @californiaiso.bsky.social · 5d

On Indigenous Peoples' Day and everyday, we honor and celebrate the rich history and cultures of Indigenous communities.

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California ISO @californiaiso.bsky.social · 8d

Busy week at the California ISO, as we hosted the WEIM Modeling and Resource Registration Forum (Oct. 7) and New Resource Implementation Forum (Oct. 9). ⚡

A great opportunity for us to engage with the stakeholder community.

Thank you to all of those who participated! 🙌

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California ISO @californiaiso.bsky.social · 9d

Last week, Anna McKenna and Neil Millar participated in panel discussions on emerging energy topics at the Fall 2025 joint CREPC-WIRAB meeting in Portland, OR.

We are proud to share our contributions to shaping the future of energy. ⚡

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California ISO @californiaiso.bsky.social · 9d

With summer behind us, we’re preparing for the winter season. ❄️⚡

💡 Collaboration and planning are key to ensuring the power grid is prepared to handle any challenges this season. ow.ly/8i9Z50X8SIH

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California ISO @californiaiso.bsky.social · 16d

Thank you for 5 electrifying years, Elliot Mainzer! ⚡

Five years of progress driven by collaboration and innovation.

Here’s to many more years of powering forward together.

#teamCAISO

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California ISO @californiaiso.bsky.social · 27d

On this first ever “Sun” Day, we celebrate the power of clean energy and a brighter future ahead. ☀️

This summer, the sun’s incredible power helped us achieve a new solar peak record of 21,774 MW on July 30. 😎

💡 Learn more: www.caiso.com/todays-outlook

California ISO @californiaiso.bsky.social · 29d

We look forward to following through with all our partners to deliver reliable and cost-effective energy to consumers throughout the West. Let's keep powering forward together! 🤝 2/

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California ISO @californiaiso.bsky.social · 29d

BIG NEWS: Governor Newsom signed AB 825, a historic milestone for the California ISO and significant step toward establishing independent governance for our regional energy markets. 1/🧵

ow.ly/8RT450WZGPM

Gov. Newsom signs landmark legislation for independent governance of Western electricity markets | California ISO

The California ISO manages the flow of electricity on high-voltage power lines, operates a wholesale energy market, and oversees infrastructure planning.

ow.ly

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California ISO @californiaiso.bsky.social · Sep 18

Happy National Clean Energy week! ⚡

We remain committed to operating the most environmentally sustainable power grid in the world, paving the way to a brighter energy future.

💡 Explore the renewable resources powering our grid: caiso.com/todays-outlook

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California ISO @californiaiso.bsky.social · Sep 17

Advocates are calling the passage of California’s AB 825 a “huge win” for consumers across the West, further advancing our mission of delivering reliable, cost-effective energy while deepening collaboration across the region. ⚡

Read more: ow.ly/9Owa50WYoG4

Regional Western electricity market closer to reality following California vote

The passage of AB 825 caps a years-long push by many clean energy advocates to regionalize the Western energy markets and sets the stage for the creation of a regional transmission organization.

ow.ly

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California ISO @californiaiso.bsky.social · Sep 15

Our August Key Stats are now available. ⚡

Take a closer look at the resources that kept the grid running strong last month. ➡️ ow.ly/zBH350WUP97

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California ISO @californiaiso.bsky.social · Sep 13

This milestone was shaped by years of successful and evolving regional collaboration. We remain fully committed to the successful launch of EDAM & will offer technical support throughout the transition. 3/
ow.ly/4RKV50WWm57

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California ISO @californiaiso.bsky.social · Sep 13

While the bill awaits the Governor’s signature, here’s what to know: As the Pathways Committee develops the framework for the new regional organization, we'll coordinate closely with them and stakeholders to ensure alignment with legislative requirements. 2/

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California ISO @californiaiso.bsky.social · Sep 13

Major milestone for the West: We commend the California Legislature, Governor Gavin Newsom, and the diverse coalition of stakeholders for their leadership in advancing AB 825 — a crucial next step toward independent governance of Western energy markets. THREAD 1/🧵

ow.ly/T3aY50WWm44

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California ISO @californiaiso.bsky.social · Sep 12

This week, the California Senate unanimously (40-0) confirmed Severin Borenstein and Jan Schori to CAISO's Board of Governors.⚡️

Congratulations to Severin and Jan on their reappointment! We look forward to their continued leadership and expertise in enhancing reliability.

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California ISO @californiaiso.bsky.social · Sep 12

This week, we welcomed the Australian Energy Market Operator (AEMO) to California ISO! ⚡

Sharing expertise is key as energy markets tackle similar challenges and opportunities—integrating renewables, maintaining grid reliability, and innovating for a sustainable future.

California ISO @californiaiso.bsky.social · Sep 11

Today, we honor and remember all those we lost on September 11, 2001, and in the days and years following — including the brave first responders whose service and sacrifice should never be forgotten.

Their memory lives on in our hearts and in the resilience of our nation.

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California ISO @californiaiso.bsky.social · Sep 10

Our multi-year effort to modernize the Control Center is delivering significant reliability benefits, particularly as operators navigate challenges like extreme heat and wildfires. ⚡

💡 Learn more about these advancements in the latest Energy Matters blog: ow.ly/FQhy50WUNEp

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California ISO @californiaiso.bsky.social · Sep 9

Happy 175th Birthday, California! 🎉☀️

Land of opportunity. Beacon of possibilities.

Here's to powering forward a bright future driven by clean energy and fueled by the collaborative, innovative, and resilient spirit of the Golden State. ⚡

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California ISO @californiaiso.bsky.social · Sep 5

Exciting EDAM update: Market simulation is underway, a significant milestone as we prepare for the launch of EDAM next spring. ⚡

💡 Read more in the latest Energy Matters blog: ow.ly/qPai50WSbIF

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California ISO @californiaiso.bsky.social · Sep 4

At the 2025 Western Energy Summit, CAISO President & CEO Elliot Mainzer joined fellow energy leaders to explore the future of the grid. From supply and demand to transmission, one theme was clear: collaboration is key to a more enhanced system in the West. ow.ly/ZLVE50WRzwF

Energy Executives Predict the Western Energy Future at NewsData Summit

Five CEOs at NewsData’s 2025 Western Energy Summit tried their hand at predicting the energy future of the West in a game called “Watts the Line”—offering their best guess on

ow.ly

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