Matthias Fripp
Matthias Fripp
@matthiasfripp.org
Finding the best ways to integrate all the energy things—wind, solar, geothermal, nuclear, hydrogen, transport, industry, buildings. Creator of Switch model—software to help with this. Global Policy Research at energyinnovation.org. Opinions are my own.
2.2K followers425 following287 posts
Who at Microsoft decided that the default cross reference should be a hyperlink with a complete copy of the caption? Has anyone ever wanted that?! And why, in the 29 years since they introduced this feature, has no one at @microsoft.com realized that normal people just want to insert "see Table 1"?
In case you missed it, @brendan.bsky.social, @michelle-solomon.bsky.social and I just published an @energyinnovation.org report showing that the U.S. can save $5 billion per year by meeting load growth with clean power and demand-side flexibility instead of keeping old coal and gas plants running. 🧵
This was done using the open-source Switch grid model and a a lot of Python code. All data and code are open-source, available at github.com/EnergyInnova.... Thanks to the PowerGenome, PUDL @catalyst.coop and ReEDS projects for awesome data resources!
In case you missed it, @brendan.bsky.social, @michelle-solomon.bsky.social and I just published an @energyinnovation.org report showing that the U.S. can save $5 billion per year by meeting load growth with clean power and demand-side flexibility instead of keeping old coal and gas plants running. 🧵
Matthias Fripp reposted
🔌💡 Clean energy can reliably meet the American economy’s insatiable demand for #electricity, at lower costs than if we primarily rely on aging coal plants and volatile natural gas. thepowerline.substack.com/p/clean-ener... by @brendan.bsky.social
In 2024, U.S. politicians received $150 million of support from fossil fuel interests to block action on climate change. www.opensecrets.org/industries/t... Meanwhile, every year those companies earn $80B+ and climate change does at least $150B of harm to the U.S. nca5.climate.us It’s got to stop!
The stats below equal 1 bathtub full of oil (1.2 barrels) per household per week. If people had to lug a couple of 5-gallon buckets of gasoline to their car every time they filled it, or wheel a 42-gallon oil barrel up to the plane for their flight, they might have more perspective.
"In 2025, the United States consumed an average of about 20.6 million barrels of petroleum per day, or a total of about 7.52 billion barrels of petroleum." People don't have a sense of scale.
Matthias Fripp reposted
"Electrifying industrial heat in India is now cheaper than producing heat from natural gas and oil across all temperatures, and cheaper than coal in three of five temperature bands, representing 55 percent of the country’s industrial heat needs."
I appreciate this idea, but as the rest of the thread shows, the big problem with excess ROE is not the inflated payments—it’s the dumb investments utilities make to get those payments. Maybe we could cut ROE in half—to market rate—but still pay the other half in incentives, even just a fee per kWh?
Instead of cutting ROEs abruptly, reform capital structure Most NJ utilities operate near 50% equity Move toward 30% equity by refinancing with public debt until the new ratio is reached Debt is cheaper than equity That shift alone could save hundreds of millions — without hurting credit quality
TIL that there are fusion reactor designs that use induction to extract energy directly from plasma expansion. I have been pessimistic about other fusion designs because they still require a steam cycle and conventional generator, making them unlikely to compete with solar panels and batteries.
open.spotify.com/episode/09yU... Not saying Helion is going to work out, but I generally agree that fusion isn't going to be commercially relevant if it doesn't get to direct energy conversion and continues to rely on steam turbines.
This isn’t what the American public want. It isn’t even what the fossil fuel companies want. It’s just a few petulant extremists finally getting their chance to cancel climate protections, even if that means making everyone in the country and the world worse off.
Matthias Fripp reposted
What if the government said the best way to fix a failing dam was slapping duct tape on its cracks? That's what the House "Power Plant Reliability Act" would do for America's grid - keep our least reliable generation online instead of fixing the actual problem. www.utilitydive.com/news/congres...
Over and over again, federal agents are seizing and deporting people who are following the legal process to immigrate. This isn’t “immigration enforcement”, it’s rounding up any dark-skinned immigrant they can find, canceling the legal process and kicking them out of the country without cause.
In Maine, masked federal agents stopped a car that contained a baby, and smashed a window. "Glass sprayed over the baby’s car seat." They took the baby's father who was driving, leaving the mother who does not have a driver's license alone in the car with the baby. On video:
Another three: www.nbcnews.com/news/us-news...
Over and over again, federal agents are seizing and deporting people who are following the legal process to immigrate. This isn’t “immigration enforcement”, it’s rounding up any dark-skinned immigrant they can find, canceling the legal process and kicking them out of the country without cause.
In Maine, masked federal agents stopped a car that contained a baby, and smashed a window. "Glass sprayed over the baby’s car seat." They took the baby's father who was driving, leaving the mother who does not have a driver's license alone in the car with the baby. On video:
A whole ‘conveyer belt’ of illegal detentions: www.mprnews.org/story/2026/0...
Another: www.mprnews.org/story/2026/0...
Partially related: www.nytimes.com/2026/02/02/u... bsky.app/profile/tyle...
Blumenthal, running through a list of proposed reforms, says that the right to seek redress agents violating their rights can be accomplished with four words added to current U.S. code, and adds: "Rights without remedies are empty promises."
Over and over again, federal agents are seizing and deporting people who are following the legal process to immigrate. This isn’t “immigration enforcement”, it’s rounding up any dark-skinned immigrant they can find, canceling the legal process and kicking them out of the country without cause.
In Maine, masked federal agents stopped a car that contained a baby, and smashed a window. "Glass sprayed over the baby’s car seat." They took the baby's father who was driving, leaving the mother who does not have a driver's license alone in the car with the baby. On video:
Another: www.kcrg.com/2026/01/28/j...
Over and over again, federal agents are seizing and deporting people who are following the legal process to immigrate. This isn’t “immigration enforcement”, it’s rounding up any dark-skinned immigrant they can find, canceling the legal process and kicking them out of the country without cause.
In Maine, masked federal agents stopped a car that contained a baby, and smashed a window. "Glass sprayed over the baby’s car seat." They took the baby's father who was driving, leaving the mother who does not have a driver's license alone in the car with the baby. On video:
Over and over again, federal agents are seizing and deporting people who are following the legal process to immigrate. This isn’t “immigration enforcement”, it’s rounding up any dark-skinned immigrant they can find, canceling the legal process and kicking them out of the country without cause.
In Maine, masked federal agents stopped a car that contained a baby, and smashed a window. "Glass sprayed over the baby’s car seat." They took the baby's father who was driving, leaving the mother who does not have a driver's license alone in the car with the baby. On video:
Another: www.cfpublic.org/politics/202...
For those looking to deepen your climate and energy skills, my wife @kamalkapadia.bsky.social just launched an awesome new course on Climate Solutions & Strategies. Check it out at skillup.earth! 🔌💡
Matthias Fripp reposted
In the Energy Institute blog, Meredith Fowlie is out today with an important analysis of California's legislative accomplishments on electricity affordability as the session wrapped up last week. energyathaas.wordpress.com/2025/09/15/r... 💡🔌
Matthias Fripp reposted
A clever way to shift loads from times when electricity is scarce and expensive to times when it is abundant and cheap. This can make better use of renewable power at a lower cost than batteries.
www.nrel.gov/news/detail/... Some updates on Blue Frontier's promising air conditioning technology. This uses liquid dessicants as a form of energy storage, separating the dehumidification and cooling processes, and allowing for the energy intensive portion of dehumidification to be done off-peak.
It’s always been weird to me that the people with the biggest phobia about intermittent renewables are often the tech folks. This is a tech problem with a tech solution—well chosen portfolios of wind, solar and batteries, plus a little fossil, bio or hydrogen for the tough days. Trust the math!
I find it funny when people—and I’ve seen comments like this — say we need to build fusion reactors instead of wasting time on solar. It’s like, honey, there’s a big fusion reactor in the sky that is always sending us power and we just need to collect it.
Matthias Fripp reposted
The most important U.S. climate legislation over the next few years is out! ASM Irwin's draft California Assembly Bill 1207 reauthorizes California's ground breaking GHG cap-and-trade (C&T) program. Here are 5 key takeaways from AB 1207 1/
@catalyst.coop Is there a recommended way to ask questions about pudl data? I noticed that interest expenses in `core_ferc1__yearly_balance_sheet_assets_sched110` (ferc_account 427-432) don't seem to make it through to `out_ferc1__yearly_detailed_balance_sheet_assets`. Am I missing something there?
My first Utility Dive byline! @brendan.bsky.social and I show that DOE's 7/7 reliability report created a fake supply gap by ignoring most new generation planned by 2030, then only considered filling it with expensive coal plants instead of the cheaper renewables, storage and gas utils have planned.
5th grade nuclear weapons drills (hide under your desk). 10-year-olds biking to the mall to try the new video games. Schedule a phone call to schedule a time/place to meet up. Mail a check and a catalog order slip, then wait a few weeks for something to come in the mail. Or call and get it COD.
What’s a real thing from your childhood that kids these days would find completely foreign? Like, how we used to be able to walk right up to the gate to meet our family coming off a flight. Or how we had to pick a spot to meet at the theater BEFORE we went.
5th grade nuclear weapons drills (hide under your desk). 10-year-olds biking to the mall to try the new video games. Schedule a phone call to schedule a time/place to meet up. Mail a check and a catalog order slip, then wait a few weeks for something to come in the mail. Or call and get it COD.
What’s a real thing from your childhood that kids these days would find completely foreign? Like, how we used to be able to walk right up to the gate to meet our family coming off a flight. Or how we had to pick a spot to meet at the theater BEFORE we went.
Matthias Fripp reposted
The One Big Beautiful Bill Act is actually One Big Expensive Bill that, if passed as is, will do major damage to the U.S. economy, harm workers and families, and put the U.S. in the backseat when it comes to global competitiveness. The team at @energyinnovation.org modeled it, here's what we found:
Matthias Fripp reposted
🔌💡 Our @silviomarcacci.bsky.social's recent piece analyzes how the #energy provisions of the “One Big Beautiful Bill” would cost our #economy years of growth with 830,000 lost jobs, $1.1 trillion less GDP, and 50 percent higher power prices 👇 www.forbes.com/sites/energy... #energysky #greensky
Hey #EnergySky, are there any good explanations of why voltage would rise after the first generation trip in Spain as ENTSO-E reported? Best I can think of would be that loads were light, so transmission lines were producing reactive power which was being consumed by those generators to hold V down.
It doesn't look like frequency or RoCoF got low enough to trip generators, but they tripped anyway before underfrequency load shedding could rebalance the grid. Maybe overvoltage was the final straw? The Spanish government seems to be saying so. (And by the theory above UFLS would have worsened it.)