Mark Z. Jacobson

The renewable energy revolution is a feat of technology | Rebecca Solnit An energy revolution is underway in this century, though most people have not noticed it

An energy revolution is underway in this century, though it’s unfolded in ways slow enough and technical enough for most people not to notice (and I assume it’s nowhere near finished). It is astonishing – a powerful solution to the climate crisis... [Wrote it a while ago; came out yesterday.]

1/ New research @lut.fi doi.org/10.1016/j.en... developing a replicable methodology to assess the potential of #PumpedHydroEnergyStorage through #GIS mapping, estimation & economic analysis. #EnergyStorage #Renewables

New solar peak output record: 21.75 GW during another 100% WindWaterSolar day in California

166 out of 211 (79%) days in 2025 with WWS>100% for part of the day

Gas is down 24.4% v '24 and 43% v '23

New solar peak output record: 21.75 GW during another 100% WindWaterSolar day in California

166 out of 211 (79%) days in 2025 with WWS>100% for part of the day

Gas is down 24.4% v '24 and 43% v '23

Why are wind-water-solar (WWS) renewables cheaper?

Well, WWS technologies all have zero fuel cost. Fossils, nuclear, and biomass all have continuous and rising fuel costs due to the need to mine or harvest, transport, process, refine, and dispense the fuel.

Limited carbon sequestration potential from global ecosystem restoration - Nature Geoscience The maximum carbon sequestration potential from global terrestrial ecosystem restoration efforts until 2100 is 96.9 Gt, which is equivalent to 3.7–12.0% of anthropogenic emissions until then, accordin...

Another reason we need to focus on the obvious: Eliminating emissions by electrifying everything and providing the electricity with WindWaterSolar

Limited carbon sequestration potential from global ecosystem restoration
www.nature.com/articles/s41...

Fossil gas is sinking fast; crushed by solar+batteries

Gas down 25% v '24 and 43% v '23
Solar up 18% v '24; 47% v '23
Batteries up 63% v '24; 213% v '23

Two more 100% WindWaterSolar days in California

165 of 210 days (79%), and 11 straight
57.6% of all demand met by WWS in '25

More renewables decrease electricity prices

Of the 18 states with the most WindWaterSolar (WWS) as a % of electricity demand, 15 have residential electricity prices below the US average, including the top 5.

SD, in fact, meets 121% of demand with WWS and has a price 3.5 c/kWh below average

More renewables decrease electricity prices

Of the 18 states with the most WindWaterSolar (WWS) as a % of electricity demand, 15 have residential electricity prices below the US average, including the top 5.

SD, in fact, meets 121% of demand with WWS and has a price 3.5 c/kWh below average

Your Call KALW's call-in show: Politics and culture, dialogue and debate.

On a world scale, renewables are steamrolling fossil fuels.

Some states and countries are moving rapidly; others, not so much

How can states and countries transition to renewable energy and what is the cost if we fail to make this transition? @NPR

www.npr.org/podcasts/381...

Fossil gas is sinking fast; crushed by solar+batteries

Gas down 25% v '24 and 43% v '23
Solar up 18% v '24; 47% v '23
Batteries up 63% v '24; 213% v '23

Two more 100% WindWaterSolar days in California

165 of 210 days (79%), and 11 straight
57.6% of all demand met by WWS in '25

Your Call KALW's call-in show: Politics and culture, dialogue and debate.

On a world scale, renewables are steamrolling fossil fuels.

Some states and countries are moving rapidly; others, not so much

How can states and countries transition to renewable energy and what is the cost if we fail to make this transition? @NPR

www.npr.org/podcasts/381...

EPA moves to repeal landmark finding that allows climate regulation President Donald Trump’s administration has proposed revoking a scientific finding that's long been the central basis for U.S. action to regulate greenhouse gas emissions and fight climate change

This is nothing less than legalizing mass murder

31 environmental rules on topics from clean air to clean water & climate change would be rolled back or repealed under EPA Zeldin's plan

EPA moves to repeal landmark finding that allows climate regulation
abcnews.go.com/US/wireStory...

The clearest path to a clean energy future.

www.kalw.org/show/your-ca...

@ethanelkind.bsky.social @kalwradio.bsky.social

Weekend update

Another 3 100% WindWaterSolar days in Calif: 9 straight & 162 of 207 for an avg of 4.8 h/day

57.5% of all demand in '25 met by WWS

Gas down 43% v '23 & 25% v '24
Solar up 47% v '23 & 18% v '24
Batteries up 213% v '23 & 64% v '24

Demand down 2% v '23 & '24 despite more EVs, AI etc

Trump admin live updates: EU will buy $750 billion worth of U.S. energy under deal Trump and European Commission President Ursula von der Leyen announced the U.S. and the EU had reached a deal that would impose a 15% tariff on most goods.

Thanks for admitting no energy emergency, Trump

EU will buy $750b worth of US energy under deal
abcnews.go.com/Politics/liv...

DECLARING A NATIONAL ENERGY EMERGENCY
"Our Nation’s current inadequate development of domestic energy resources leaves us vulnerable."
www.whitehouse.gov/presidential...

'Total Mental Collapse': Trump Ripped After 'Insane' New Ramble In Europe Critics tore into the president after an unexpected digression against a familiar target.

Don Quixote Trump:

“And the other thing I say to Europe: We will not allow a windmill to be built in the United States. They’re killing us.”

'Total Mental Collapse': Trump Ripped After 'Insane' New Ramble In Europe
www.huffpost.com/entry/trump-...

Rooftop (behind-the-meter) PV decreases demand during the day because people use that so do not need to use (or pay for) grid electricity. This is the beauty of rooftop PV.

New graphs showing fossil gas use down 42.5% since 2023 and 24.3% since 2024 on CAISO grid

WWS up 16%, solar up 47.4%, batteries up 213% since 2023

162nd of 207 days in 2025 with >100%, for an avg of 4.7 h/day (v 1 h/d in 2023)

WWS has met 57.5% of demand in '25 v 48.7% in '23

Why the Energy Transition Is Stalling: Mark Jacobson’s Case Against Distraction and Delay - Energy News Carbon capture, for example, is frequently marketed as essential to achieving net-zero targets. But Jacobson points out that removing a ton of CO₂ via direct

Why we don't need carbon capture: We need courage

Why the energy transition is stalling due to distraction and delay
energynews.biz/why-the-ener...

Fossil gas is down 23% vs '24 & 42% v '23
Solar up 18.2% v '24 & 47.4% v '23
Wind up 2.9% v '24 & 3.5% v '23
WWS up 6.7% v '24 & 15.9% v '23
Batteries up 64% v 2'4 & 213% v '23

WWS would produce even more than in 2025 (wiping out more gas) except large hydro is down 10.6% v '24 & 12.3% v '23

This was also the 160th of 205 days (78%) in 2005 with >100% WindWaterSolar on the grid. WWS has exceeded 100% of demand for an avg of 4.73 h/day among all 205 days

WWS has met an avg of 57.4% of demand in 2025, vs 53.1% in 2024 and 48.8% in 2023, suggesting CA should be 100% WWS 24/7/365 in <10 y

Everyone is probably bored of me posting California winning almost every day against the pro-fossil and let's-do-everything-except-what-is-actually-useful crowd, but I can't help if every day results in a new first.

On 7/24 solar on the CAISO grid spilled a record peak of 21.71 GW onto the grid

PPIC Statewide Survey: Californians and the Environment - Public Policy Institute of California Key findings of the survey include: Most Californians are very concerned about home insurance costs increasing due to climate-related risks. Less than half are willing to pay more for electricity from...

77% of California likely voters (88% of Dems, 73% of Independents, and 61% of Reps) want offshore wind

ppic.org/publication/...

Vietnam setting bans on gasoline motorcycles next year, followed by cars Vietnam is taking bold steps to clean up its streets – and quiet them down. Starting next summer, the major...

This is just what we need, but we need it even faster.

Vietnam setting bans on gasoline motorcycles next year (in downtown Hanoi), followed by cars

Ultimately, 72 million gasoline motorcycles will be banned, plus gasoline cars.

electrek.co/2025/07/20/v...

PPIC Statewide Survey: Californians and the Environment - Public Policy Institute of California Key findings of the survey include: Most Californians are very concerned about home insurance costs increasing due to climate-related risks. Less than half are willing to pay more for electricity from...

77% of California likely voters (88% of Dems, 73% of Independents, and 61% of Reps) want offshore wind

ppic.org/publication/...

Fossil gas is down 23% vs '24 & 42% v '23
Solar up 18.2% v '24 & 47.4% v '23
Wind up 2.9% v '24 & 3.5% v '23
WWS up 6.7% v '24 & 15.9% v '23
Batteries up 64% v 2'4 & 213% v '23

WWS would produce even more than in 2025 (wiping out more gas) except large hydro is down 10.6% v '24 & 12.3% v '23

This was also the 160th of 205 days (78%) in 2005 with >100% WindWaterSolar on the grid. WWS has exceeded 100% of demand for an avg of 4.73 h/day among all 205 days

WWS has met an avg of 57.4% of demand in 2025, vs 53.1% in 2024 and 48.8% in 2023, suggesting CA should be 100% WWS 24/7/365 in <10 y

Everyone is probably bored of me posting California winning almost every day against the pro-fossil and let's-do-everything-except-what-is-actually-useful crowd, but I can't help if every day results in a new first.

On 7/24 solar on the CAISO grid spilled a record peak of 21.71 GW onto the grid

And no matter what you claim, DAC is increasingly CO2. We are not close to zero fossils in the system to replace.