California ISO
@caiso.com
Official Bluesky account for the California ISO
⚡ Conserve energy: @flexalert.org
⬇️ ISO Today mobile app: http://bit.ly/3g0mEnm
💡 Visit www.caiso.com.
⚡ Conserve energy: @flexalert.org
⬇️ ISO Today mobile app: http://bit.ly/3g0mEnm
💡 Visit www.caiso.com.
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.
We enjoyed our conversation on transmission planning, grid modernization, and building a more sustainable energy future together.
November 12, 2025 at 9:29 PM
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.
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. 🙏
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. 🙏
November 11, 2025 at 5:07 PM
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. 🙏
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. 💡⚡️
November 11, 2025 at 12:33 AM
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
Key topics:
Day 1️⃣: Intertie Scheduling
Day 2️⃣: Updates on Congestion Revenue Rights Implementation & Resource Adequacy Imports
November 10, 2025 at 10:16 PM
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
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...
💡 Learn more: socalgas.com/sustainabili...
November 5, 2025 at 11:02 PM
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...
💡 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
🦇 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
October 31, 2025 at 4:31 PM
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
🦇 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
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
October 30, 2025 at 9:38 PM
📣 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
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
⚡ 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
October 28, 2025 at 9:27 PM
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
⚡ 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
💡 Learn more in our latest Energy Matters blog post: ow.ly/NMMA50XfPvP
October 21, 2025 at 8:54 PM
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
💡 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!
We truly appreciated the engaging discussion and look forward to future collaborations as we work together to power forward!
October 20, 2025 at 10:01 PM
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!
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/...
⚡ 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
October 17, 2025 at 10:57 PM
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/...
⚡ 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.
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.
October 15, 2025 at 8:14 PM
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.
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. ⚡
October 15, 2025 at 4:27 PM
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
Get insight into all the resources that bolstered our power grid and enhanced reliability during the peak summer season.
💡 Learn more: ow.ly/yER850XbcY0
October 14, 2025 at 7:32 PM
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
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.
October 13, 2025 at 9:38 PM
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! 🙌
A great opportunity for us to engage with the stakeholder community.
Thank you to all of those who participated! 🙌
October 10, 2025 at 7:18 PM
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! 🙌
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. ⚡
We are proud to share our contributions to shaping the future of energy. ⚡
October 10, 2025 at 12:19 AM
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. ⚡
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
💡 Collaboration and planning are key to ensuring the power grid is prepared to handle any challenges this season. ow.ly/8i9Z50X8SIH
October 9, 2025 at 5:54 PM
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
💡 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
Five years of progress driven by collaboration and innovation.
Here’s to many more years of powering forward together.
#teamCAISO
October 2, 2025 at 5:35 PM
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
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
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
September 21, 2025 at 5:14 PM
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
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
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
September 19, 2025 at 8:50 PM
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
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
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
September 18, 2025 at 8:28 PM
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
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
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
September 17, 2025 at 9:05 PM
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
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
Take a closer look at the resources that kept the grid running strong last month. ➡️ ow.ly/zBH350WUP97
September 15, 2025 at 7:03 PM
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
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
ow.ly/T3aY50WWm44
September 13, 2025 at 8:48 PM
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
ow.ly/T3aY50WWm44