Simon Mahan
@simonmahan.bsky.social
I'm here for the energy memes.
Reposted by Simon Mahan
if you can’t see the aurora borealis tonight, here is a sewer tunnel which is a wonder in itself.
November 12, 2025 at 3:58 AM
if you can’t see the aurora borealis tonight, here is a sewer tunnel which is a wonder in itself.
"At its best, ERSC could be a forum to ensure that Entergy participates fairly in MISO’s broader transmission planning, unlocking access to cheaper, cleaner resources." southernrenewable.org/news-updates...
The Entergy Regional State Committee: What It Is and What It Isn’t
You’ve probably never heard of the Entergy Regional State Committee. In short, it’s a nonprofit organization paid for by Entergy customers with the...
southernrenewable.org
November 7, 2025 at 10:09 PM
"At its best, ERSC could be a forum to ensure that Entergy participates fairly in MISO’s broader transmission planning, unlocking access to cheaper, cleaner resources." southernrenewable.org/news-updates...
Reposted by Simon Mahan
MISO's first interconnection queue fast lane turns up 47 projects, 74% of which are natural gas. Despite the apparent dominance of natural gas across 22 project requests, MISO leadership said the applicant pool represented a “large, diverse” assortment. www.rtoinsider.com/113407-gas-g...
26.5 GW of Mostly Gas Gen Compete for MISO’s Sped-Up Grid Treatment
MISO announced that its first interconnection queue express lane application window turned up 47 projects at a little more than 26.5 GW.
www.rtoinsider.com
August 27, 2025 at 1:16 PM
MISO's first interconnection queue fast lane turns up 47 projects, 74% of which are natural gas. Despite the apparent dominance of natural gas across 22 project requests, MISO leadership said the applicant pool represented a “large, diverse” assortment. www.rtoinsider.com/113407-gas-g...
A $1.2 billion investment, the Vicksburg Advanced Power Station represents a significant economic impact for the area... Entergy will employ about 21 personnel to operate the plant once completed. www.entergy.com/news/next-ph...
Mississippi builds power generation in Vicksburg
Vicksburg will be home to power generation with construction of the Vicksburg Advanced Power Station, replacing an older unit with newer, efficient resources.
www.entergy.com
November 7, 2025 at 6:51 PM
A $1.2 billion investment, the Vicksburg Advanced Power Station represents a significant economic impact for the area... Entergy will employ about 21 personnel to operate the plant once completed. www.entergy.com/news/next-ph...
Evergy...The two 710-megawatt facilities, located in Sumner and Reno counties, are expected to cost $788.75 million and $800.52 million, respectively. kansasreflector.com/2025/08/01/e...
Evergy receives Missouri approval to build gas plants, solar farms after Kansas thumbs-up • Kansas Reflector
Missouri regulators approved Evergy’s request to build three natural gas plants and two solar farms.
kansasreflector.com
November 6, 2025 at 4:30 PM
Evergy...The two 710-megawatt facilities, located in Sumner and Reno counties, are expected to cost $788.75 million and $800.52 million, respectively. kansasreflector.com/2025/08/01/e...
If you haven't worked in Georgia, you're probably not familiar with Peter Hubbard, a new PSC Commissioner-elect. He's been engaged in IRP hearings for a long time, and you can listen to his most recent testimony, below. Peak #energytwitter content www.youtube.com/live/LmpxU6_...
PSC Doc 56002 Georgia Power IRP & 56003 Certification, Decert, Amended Demand-Side Management Plan 2
YouTube video by Georgia Public Service Commission
www.youtube.com
November 6, 2025 at 3:43 PM
If you haven't worked in Georgia, you're probably not familiar with Peter Hubbard, a new PSC Commissioner-elect. He's been engaged in IRP hearings for a long time, and you can listen to his most recent testimony, below. Peak #energytwitter content www.youtube.com/live/LmpxU6_...
A view from Georgia
Georgia PSC Election Takeaways: It's STILL the Economy, Stupid southernrenewable.org/news-updates...
Georgia PSC Election Takeaways: It's STILL the Economy, Stupid southernrenewable.org/news-updates...
Georgia PSC Election Takeaways: It's STILL the Economy, Stupid
For the first time in 22 years, Democrats were able to pick off two state-level races for the Georgia Public Service Commission (GPSC) over their...
southernrenewable.org
November 6, 2025 at 2:43 PM
A view from Georgia
Georgia PSC Election Takeaways: It's STILL the Economy, Stupid southernrenewable.org/news-updates...
Georgia PSC Election Takeaways: It's STILL the Economy, Stupid southernrenewable.org/news-updates...
I'm not a Georgian, but I've done a lot of work in the state over the past 10 years. If you want the real story on the ground, I'd be happy to point folks to the locals grinding it out.
November 5, 2025 at 10:33 PM
I'm not a Georgian, but I've done a lot of work in the state over the past 10 years. If you want the real story on the ground, I'd be happy to point folks to the locals grinding it out.
Reposted by Simon Mahan
State regulators are allowing Kentucky’s largest power companies to spend $3 billion on two new gas power plants, which LG&E/KU say are needed for future data centers. www.lpm.org/news/2025-10...
Kentucky regulators grant LG&E/KU permission to build power plants for future data centers
State regulators are allowing Kentucky’s largest power companies to spend $3 billion on two new gas power plants, which LG&E/KU say are needed for future data centers.
www.lpm.org
October 29, 2025 at 12:30 AM
State regulators are allowing Kentucky’s largest power companies to spend $3 billion on two new gas power plants, which LG&E/KU say are needed for future data centers. www.lpm.org/news/2025-10...
Southern Renewable Energy Association Executive Director Simon Mahan said while MISO and SPP’s coordinated system plan studies in the past have been disappointing, this fresh list of project candidates seems promising.
www.rtoinsider.com/118071-30-pr...
www.rtoinsider.com/118071-30-pr...
30+ Projects Under Consideration in MISO-SPP Joint Tx Effort
MISO and SPP said they will study more than 30 project suggestions — some estimated to cost more than $1 billion apiece.
www.rtoinsider.com
October 25, 2025 at 12:17 AM
Southern Renewable Energy Association Executive Director Simon Mahan said while MISO and SPP’s coordinated system plan studies in the past have been disappointing, this fresh list of project candidates seems promising.
www.rtoinsider.com/118071-30-pr...
www.rtoinsider.com/118071-30-pr...
Reposted by Simon Mahan
Vultures cool themselves down by urinating on their own feet. Big Cat intern Geoff did the same thing when he began cleaning what he thought was an empty cage.
October 24, 2025 at 3:11 AM
Vultures cool themselves down by urinating on their own feet. Big Cat intern Geoff did the same thing when he began cleaning what he thought was an empty cage.
“We’re starting to put more pressure on the gas system, and it’s not clear that the cumulative demand for gas is going to be sustainable or met in the next five years,” said Simon Mahan, executive director of the Southern Renewable Energy Association.
www.ajc.com/business/202...
www.ajc.com/business/202...
Georgia Power says answer to state’s data center surge is more natural gas
Georgia Power officials will make their case beginning Tuesday for gas-fired power plants and solar and battery storage to meet electricity demand driven by data centers.
www.ajc.com
October 21, 2025 at 4:17 PM
“We’re starting to put more pressure on the gas system, and it’s not clear that the cumulative demand for gas is going to be sustainable or met in the next five years,” said Simon Mahan, executive director of the Southern Renewable Energy Association.
www.ajc.com/business/202...
www.ajc.com/business/202...
With natural gas pipeline contracts for electric utilities, if an electric utility signs a more firm pipeline capacity contract, is the firmness of that contract rolled into the retail customers fuel charge, or is it a separate line item paid for by the utility?
October 20, 2025 at 4:26 PM
With natural gas pipeline contracts for electric utilities, if an electric utility signs a more firm pipeline capacity contract, is the firmness of that contract rolled into the retail customers fuel charge, or is it a separate line item paid for by the utility?
Arkansas' first wind farm! The Crossover wind project just outside of Wynne.
October 15, 2025 at 7:48 PM
Arkansas' first wind farm! The Crossover wind project just outside of Wynne.
First Arkansas wind farm operating in Cross County www.arkansasonline.com/news/2025/oc...
First Arkansas wind farm operating in Cross County | Arkansas Democrat Gazette
Crossover Wind, a 135-megawatt wind farm near Wynne, is now online. The farm's 33 Vestas 4.5MG turbines, designed to produce enough electricity to power 50,000 houses, have been operating since June.
www.arkansasonline.com
October 14, 2025 at 10:08 PM
First Arkansas wind farm operating in Cross County www.arkansasonline.com/news/2025/oc...
Reposted by Simon Mahan
Over 40% of corn grown in Indiana is used to make ethanol that cars burn. One acre of corn yields about 16,500 vehicle-miles per year of ethanol, which sounds high until you realize that one acre of solar yields about 2,700,000 vehicle-miles per year: 16,000% more driving for a given plot of land.
October 9, 2025 at 8:54 PM
Over 40% of corn grown in Indiana is used to make ethanol that cars burn. One acre of corn yields about 16,500 vehicle-miles per year of ethanol, which sounds high until you realize that one acre of solar yields about 2,700,000 vehicle-miles per year: 16,000% more driving for a given plot of land.
Look, we're gonna build transmission one way or another. We can either attempt to be proactive and thoughtful, or reactive and panicked. I know my hot water tank will die someday soon, I don't know exactly when, but I want to replace it before it explodes. Why is this hard?
October 9, 2025 at 1:25 PM
Look, we're gonna build transmission one way or another. We can either attempt to be proactive and thoughtful, or reactive and panicked. I know my hot water tank will die someday soon, I don't know exactly when, but I want to replace it before it explodes. Why is this hard?
Cool job alert with the Southeastern Wind Coalition, Program Associate, $65k, must be in either MS, AR, AL, TN, or GA; www.sewind.org/central-stat...
Central States Sr. Program Associate — Southeastern Wind Coalition
www.sewind.org
October 8, 2025 at 8:19 PM
Cool job alert with the Southeastern Wind Coalition, Program Associate, $65k, must be in either MS, AR, AL, TN, or GA; www.sewind.org/central-stat...
Reposted by Simon Mahan
Back in 2022 @simonmahan.bsky.social told me*:
"I know folks who know Congress reps’ phone # by heart but they don’t know the PUC even exists."
Maybe this Georgia election will also be an inflection point for public awareness of PUCs' huge power.
*for this piece:
www.nybooks.com/online/2022/...
"I know folks who know Congress reps’ phone # by heart but they don’t know the PUC even exists."
Maybe this Georgia election will also be an inflection point for public awareness of PUCs' huge power.
*for this piece:
www.nybooks.com/online/2022/...
The Groaning Grid | Jonathan Mingle
One could be forgiven for thinking that it’s only Senator Joe Manchin who gets to decide these things, but here’s a little-known fact: precisely 201
www.nybooks.com
October 8, 2025 at 4:39 PM
Back in 2022 @simonmahan.bsky.social told me*:
"I know folks who know Congress reps’ phone # by heart but they don’t know the PUC even exists."
Maybe this Georgia election will also be an inflection point for public awareness of PUCs' huge power.
*for this piece:
www.nybooks.com/online/2022/...
"I know folks who know Congress reps’ phone # by heart but they don’t know the PUC even exists."
Maybe this Georgia election will also be an inflection point for public awareness of PUCs' huge power.
*for this piece:
www.nybooks.com/online/2022/...
MISO MTEP25 sneak peek: MISO south is blowing up
October 8, 2025 at 3:47 PM
MISO MTEP25 sneak peek: MISO south is blowing up
$305k subsidy for nuclear in Arkansas, when the state utilities provide this sort of analysis ~for free~ (it's called an IRP, look it up)
www.arkansasonline.com/news/2025/oc...
www.arkansasonline.com/news/2025/oc...
Arkansas lawmakers hire firm to conduct nuclear energy study | Arkansas Democrat Gazette
EXCEL Services Corp., a consulting firm, has been hired by the state to study the development of new nuclear energy generation in Arkansas.
www.arkansasonline.com
October 8, 2025 at 2:46 PM
$305k subsidy for nuclear in Arkansas, when the state utilities provide this sort of analysis ~for free~ (it's called an IRP, look it up)
www.arkansasonline.com/news/2025/oc...
www.arkansasonline.com/news/2025/oc...
“[Entergy Arkansas] has known about the retirement of White Bluff for almost a decade, and has effectively waited until the last minute to announce public plans,” Mahan wrote. www.arkansasbusiness.com/article/arka...
Arkansas’ Energy Future: New Power Plants Planned as Demand Surges
Entergy, AECC plan new power plants and more renewable energy as Arkansas shifts from coal and demand for electricity surges.
www.arkansasbusiness.com
October 7, 2025 at 4:15 PM
“[Entergy Arkansas] has known about the retirement of White Bluff for almost a decade, and has effectively waited until the last minute to announce public plans,” Mahan wrote. www.arkansasbusiness.com/article/arka...
So close to such a great day
October 7, 2025 at 1:44 PM
So close to such a great day
The PSC recently brought in consulting firm Bates White to examine the numbers and assess whether or not Mississippi benefits from staying in MISO.
The result? Mississippi benefits from staying in MISO. southernrenewable.org/news-updates...
The result? Mississippi benefits from staying in MISO. southernrenewable.org/news-updates...
October 7, 2025 at 1:25 PM
The PSC recently brought in consulting firm Bates White to examine the numbers and assess whether or not Mississippi benefits from staying in MISO.
The result? Mississippi benefits from staying in MISO. southernrenewable.org/news-updates...
The result? Mississippi benefits from staying in MISO. southernrenewable.org/news-updates...