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. 🧵

energyinnovation.orgLet The Sun In: Clean Energy Is The Cheapest Way To Meet Rising DemandMeeting U.S. demand growth with fossil fuels will add $29.7 billion to customer bills per year by 2030, clean energy can do it for less.
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(3) We took reliability seriously: we started the capacity planning model with 20 "economic" days spanning typical weather conditions, then tested the plan on 7 years of historical weather and added difficult "reliability" days back to the planning model, until it produced a fully reliable plan.

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. 🧵

energyinnovation.orgLet The Sun In: Clean Energy Is The Cheapest Way To Meet Rising DemandMeeting U.S. demand growth with fossil fuels will add $29.7 billion to customer bills per year by 2030, clean energy can do it for less.

This work has a few unusual features, including some technical innovations that may be useful for others: (1) We kept a sharp focus on crazy near-term conditions, where rapid load growth collides with headwinds for everything on the grid: wind, solar, gas turbines, nuclear, transmission.

(2) We used a lot of technical detail, especially for thermal plants: spinning reserve margins, part-load efficiencies, minimum up- and down-time and ramp rate limits. All this in a 134-zone model (sub-state-level!) with hourly resolution.

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!

nca5.climate.usFifth National Climate AssessmentThe Fifth National Climate Assessment is the US Government’s preeminent report on climate change impacts, risks, and responses. It is a congressionally mandated interagency effort that provides the sc...

That’s about $1000 of harm per year per household in the U.S. (plus at least $600 of fossil fuel profit), in exchange for about $1 of political support. People are dying early, losing their homes, insurance, crops, shorelines, forests. It’s so pointless. Ugh.

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.

Brandon Bishop@brandontbishop.bsky.social

"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."

energyinnovation.orgElectrifying Industrial Heat in IndiaCheap solar prices mean electrifying industrial heat in India is cheaper than producing heat from most fossil fuels, cutting costs and air pollution.

We can easily build a reliable, low-cost, near-zero-emission power system with the technologies we have today. We don’t need to invent anything new. 🔌💡

M. Nolan Gray 🥑@mnolangray.bsky.social

What's something that experts/practitioners in your field universally agree upon, but that remains a "hot take" among the general public?

You can get pretty far by building a lot of solar and maybe wind power, then covering what’s left with batteries and some lightly used thermal plants. In much of the world, 50-95% renewable is cheaper than continuing to burn mainly fossil fuels. This also provides cheap power for EVs and industry.

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?

Jigar Shah@jigarshahdc.bsky.social

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.

John Smillie@johnsmillie42.bsky.social

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.

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...

utilitydive.comCongressional ‘grid reliability’ bill is like duct tape on a cracked damPropping up expensive, dirty power plants threatens consumers with higher prices while punting systemic solutions further into the future, write colleagues from Energy Innovation.

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.

Taniel@taniel.bsky.social

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:

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An adjustment to my first point: as far as I can tell, these legal immigrants aren’t all being deported, at least not quickly. Instead they are being warehoused in concentration-camp-like detention centers. Either way, this is not what voters asked for: torturing people who followed all the rules.

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.

Taniel@taniel.bsky.social

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:

View full thread

Why is it that Trump can sue the IRS for leaking his tax details but DHS can’t be sued for assaulting or killing regular people?

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.

Taniel@taniel.bsky.social

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:

View full thread

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.

Taniel@taniel.bsky.social

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:

View full thread

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.

Taniel@taniel.bsky.social

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:

Matthias Fripp reposted

Matthias Fripp reposted

The current administration has claimed renewables are making the grid less reliable. If that were the case, I'd expect states adding the most renewables over the past decade to have the largest increase in outages. However, the opposite seems to be true!

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.

John Smillie@johnsmillie42.bsky.social

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!

Dr. SkySkull@drskyskull.bsky.social

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/

politico.compolitico.com

@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.

utilitydive.comEnergy Department’s flawed grid study props up expensive, zombie power plantsThe most effective way to maintain grid reliability is to let planners plan, markets work and utilities build the resources they’ve already identified as the most affordable path forward.

Every czar can have their own Rasputin!

Matt Novak@paleofuture.bsky.social

"I’ll go down this thread with GPT or Grok and I’ll start to get to the edge of what’s known in quantum physics and then I’m doing the equivalent of vibe coding, except it’s vibe physics,” said Travis Kalanick, the founder of Uber. gizmodo.com/billionaires...

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.

Tiffany⸆⸉@tiffanyclay.dev

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.

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Deciding how much cash vs. travelers checks to take on your trip, then hunting for the best exchange rates. First reserve a flight, then go to the airport to pay for it. Cars mostly had manual transmissions, mechanical-dial radios and no air conditioning, and spewed lead from their tailpipes.

Carrying a phone cable so you could plug your computer into a pay phone at the airport, then use a phone calling card to dial into an internet service provider to check your emails.

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.

Tiffany⸆⸉@tiffanyclay.dev

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.

Four-digit dialing in small towns. Writing papers and book reports longhand, in multiple drafts. Your address book was paper. Being behind on writing paper letters to your friends. Wanna keep up on computers? Buy a magazine. Everyone watched the same news. Light bulbs were dangerously hot.

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

forbes.com$1 Trillion In Economic Damage From U.S. House’s Reconciliation BillEnergy 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% higher power prices.

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.)

linkedin.comUPDATE SPAIN BLACKOUT: The Spanish gov has published the most detailed… | Javier Blas | 45 commentsUPDATE SPAIN BLACKOUT: The Spanish gov has published the most detailed timeline yet of the April 28th blackout of the Iberian Peninsula. Lots of emphasis on "over voltage" and "frequenc...

If the U.S. blocks imports from all the other countries and then all the other countries block imports from the U.S., umm, where does that leave us? Something like Iran and Cuba? Great, we just imposed sanctions on ourselves.