It was great to connect with The Nature Conservancy team! ⚡🌍 We enjoyed our conversation on transmission planning, grid modernization, and building a more sustainable energy future together.

Honoring our veterans today and every day. 🇺🇸 This Veterans Day, we salute the resilient heroes who have served our great country with unwavering dedication. We thank you for your commitment, bravery, and service to our nation. Thank you for your service. 🙏

Stacey Crowley, our Vice President of External Affairs, participated in a NARUC roundtable discussion alongside Public Utility Commissioners, large electricity customers, and utility/regional transmission operators to address rising energy demand over the next decade. 💡⚡️

A big thank you to everyone who joined our first Extended Day-Ahead Market (EDAM) Implementation Workshop this week, both in person and online! 🙌⚡ Key topics: Day 1️⃣: Intertie Scheduling Day 2️⃣: Updates on Congestion Revenue Rights Implementation & Resource Adequacy Imports

The California ISO team visited North America's first-ever clean renewable hydrogen powered microgrid and home. The project showcases innovative solutions as we power forward for a more sustainable energy future. ⚡ 💡 Learn more: socalgas.com/sustainabili...

Happy Halloween! 👻 🦇 Beware of energy vampires lurking in your home, draining your power. ⚡ Try these tricks to scare off them off and enjoy spooktacular energy savings: ow.ly/X00S50Xk4TM

📣 NEWS: The WEIM continues to drive cost savings across the West. In Q3 2025, the WEIM delivered over $412M in economic benefits to participants, pushing total cumulative savings to $7.82B since the market’s launch in 2014. ⚡ 💡 Learn more about the impact: ow.ly/sAgu50XkC7Q

Get into the spooky season with us! 👻 ⚡ Energy vampires are lurking - drawing enough power out of your home to waste energy and slay your wallet. Our new Energy Matters blog post has tips for spooktacular savings: ow.ly/ig0E50XjomT

Tracking greenhouse gas (GHG) emissions is key for many organizations. We're working to make GHG emissions from market dispatch more transparent, helping others better understand the impact of their electricity use. ⚡ 💡 Learn more in our latest Energy Matters blog post: ow.ly/NMMA50XfPvP

Big thanks to Utah Associated Municipal Power Systems (UAMPS) for visiting us! ⚡ We truly appreciated the engaging discussion and look forward to future collaborations as we work together to power forward!

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/...

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.

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. ⚡

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

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

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! 🙌

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. ⚡

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

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

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

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

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

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

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

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

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.

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.

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.

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

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. ⚡

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

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

This Labor Day, we celebrate the hard work and dedication of all workers, including those in the energy industry powering our communities. 💪⚡

Thank you for visiting, @ladwp.com! 💚 We’re thrilled to partner with you to build the Extended Day-Ahead Market, creating a stronger, more resilient power grid for the West. ⚡

We’re continuing to monitor forecasted hot weather across California. The grid is stable, and energy supply is sufficient to meet demand. To monitor real-time grid conditions, visit: caiso.com/todays-outlook

California, it’s getting hot in here. ☀️🌡️ Lower your thermostat to 70°F in the morning to help keep your home cool. 💡 Bonus tip: Set to 78°F after 4 p.m. to save energy and money.

We’re closely monitoring forecasted hot weather for this week. At this time, the power grid is stable, and no supply deficiencies are predicted. For real-time information on the power grid’s status, visit: caiso.com/todays-outlook

As of July 30, we broke a solar record of 𝟮𝟭,𝟳𝟳𝟰 𝗠𝗪. ☀️⚡ 💡 Explore our July 2025 key stats to learn more about all the resources that kept the power grid stronger: ow.ly/rSwC50WGkBI

Attending the 2025 California Power Summit this week? Be sure to attend the “Regulatory & Legislative Landscape for Utilities” panel session with Neil Millar, VP, Transmission Planning & Infrastructure Development. ⚡ 💡 Learn more: ow.ly/pO0350WClZs

California, it’s peak summertime. ☀️ ✅ Sign up for Flex Alert notifications at FlexAlert.org to stay in the know and follow us for energy conservation tips. ⚡

ICYMI: Our latest Energy Matters blog explores the California ISO’s use of an AI pilot project to enhance how operators coordinate and review planned maintenance requests for grid assets. ⚡ 💡 Learn more: ow.ly/jMyz50WwqM5

The sun is shining. ☀️ Wrapping up July with a solar peak record of 21,774 MW! 😎⚡ 💡 Visit Today’s Outlook to learn more: www.caiso.com/todays-outlook

NEWS: In Q2 2025, the WEIM delivered more than $420M in economic benefits to participants, pushing total cumulative savings to $7.41B since the market’s launch in 2014. The WEIM continues to drive cost savings across the West.⚡ Read the news release ➡️ ow.ly/x1ZK50WylmO

Shaping the future ⚡ Our new Energy Matters blog explores the California ISO’s use of an AI pilot project to enhance how operators coordinate and review planned maintenance requests for grid assets. 💡 Learn more: ow.ly/PIrN50WwpEO

Explore our June 2025 Key stats to learn more about the resources that kept electricity flowing on the power grid. ⚡ ow.ly/sEG850WtIvA

Two days in a row! 😎 We broke another solar peak record at 21,718 MW! ☀️⚡ 💡 Visit Today’s Outlook to learn more: ow.ly/rEsH50WvsYW

Exciting news: We broke our first solar record since the official start of summer, reaching 21,667 MW! ☀️⚡ 💡 Visit Today’s Outlook to learn more about how renewable resources power our grid: ow.ly/wAmk50Wv1ph

NEWS: The WEM Governing Body, in its first vote under the ISO’s new, more independent governance structure, has approved the continued use of an important reliability feature known as the Western Energy Imbalance Market Assistance Energy Transfers. ⚡ 💡 Read the news release: ow.ly/9cTa50Wun3n

Be the first to know when to reduce energy usage during critical times. Together, we can make a difference. ⚡ ✅ Sign up now at flexalert.org.

Good @latimes.com read from @sammyroth.bsky.social on the benefits of regional markets in delivering affordable, reliable, and clean energy.