Midcontinent ISO (@MISO

Midcontinent ISO

4,549 posts

Midcontinent ISO

@MISO_energy

Operating the power grid, managing energy markets and planning the future grid reliably, cost-effectively.

Carmel, Indiana

Joined August 2012

Midcontinent ISO
@MISO_energy
Jul 1
While grid conditions remain stable, summer heat is driving up electricity demand across the MISO region. Ahead of the heat wave, MISO declared Conservative Operations, moving our grid gauge into the yellow Advisory/Warning position. This step helps position every available
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Midcontinent ISO
@MISO_energy
Jun 3
The 2026 OMS-MISO Survey results are now available, showing states and utilities across the region are planning record levels of resource additions over the next five years. Member utilities expect to add an average of 15 GW of new accredited summer capacity each year, a pace
561
Midcontinent ISO
@MISO_energy
May 27
MISO has launched the fourth cycle of its Expedited Resource Addition Study (ERAS) process, adding seven projects and approximately 3.7 GW of proposed new capacity to its interconnection pipeline. The Cycle 4 portfolio spans natural gas, solar and battery storage resources
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Midcontinent ISO
@MISO_energy
May 6
This afternoon, MISO is hosting its annual Summer Readiness Workshop, sharing the 2026 outlook with stakeholders on capacity, operations and the season ahead. This year's Planning Resource Auction produced approximately 142.6 GW of summer capacity, up about 4.8 GW from last
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Midcontinent ISO
@MISO_energy
Apr 28
MISO has released the results of its 2026 Planning Resource Auction. The auction indicates that the region has sufficient generation capacity to maintain reliability for the upcoming planning year (June 2026–May 2027). Results will be reviewed in a stakeholder meeting at 2 p.m.
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Midcontinent ISO
@MISO_energy
Mar 9
Another wave of generation resources is advancing through MISO’s Expedited Resource Addition Study (ERAS). Learn more: ow.ly/rykG50Yriiz. The third ERAS cycle includes 𝟭𝟱 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗿𝗲𝗽𝗿𝗲𝘀𝗲𝗻𝘁𝗶𝗻𝗴 𝗮𝗯𝗼𝘂𝘁 𝟴 𝗚𝗪 𝗼𝗳 𝗽𝗿𝗼𝗽𝗼𝘀𝗲𝗱
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Midcontinent ISO
@MISO_energy
Mar 5
#ICYMI: Yesterday, MISO released the latest Reliability Imperative report outlining how we’re working with our members and states to anticipate challenges, accelerate solutions and maintain reliability as system complexity grows. Explore what's new in the 2026 report:
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Midcontinent ISO
@MISO_energy
Mar 4
Today, MISO released the latest Reliability Imperative report outlining how we’re working with our members and states to anticipate challenges, accelerate solutions and maintain reliability as system complexity grows. Since launching the Reliability Imperative in 2020, we’ve
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Midcontinent ISO
@MISO_energy
Feb 16
While MISO offices are closed today in observance of President's Day, our grid operators are working around the clock to ensure grid reliability across our region. #PresidentsDay
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Midcontinent ISO
@MISO_energy
Jan 24
The grid remains stable and MISO has ended its EEA2. Extreme weather will continue over the next few days, and MISO and our members continue to monitor conditions very closely. MISO is currently in a Maximum Generation Warning, which is a notification to prepare for a
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Midcontinent ISO
@MISO_energy
Jan 24
Due to significant winter weather, MISO has issued an Energy Emergency Alert 2 (EEA2) for our North and Central regions. EEA2 is triggered when MISO is facing an energy shortage and needs to increase generation available to meet demand. At this time, MISO does not have a need for
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Midcontinent ISO
@MISO_energy
Jan 23
We are closely monitoring winter weather conditions as the storm approaches the MISO region. Our team has taken steps to prepare and is coordinating with members, including declaring Conservative Operations, which is a requirement to defer, delay or recall any non-essential
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Midcontinent ISO reposted
Entergy Arkansas
@EntergyArk
Jan 21
Extreme winter weather is expected to move into Arkansas this week and our teams are ready. ❄️ Heavy snow and ice can bring down power lines. We’re adjusting resources to help ensure reliable service. We also encourage customers to have a plan. 👉 enter.gy/6016CfIuj.
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