@mzjacobson.bsky.social
Climate, pollution, clean/renewable energy Stanford U Prof, Civil & Env Eng; Director, Atmos/Energy Program Cofounder-Solutions Project; Appeared on Letterman Testified Held v Montana https://web.stanford.edu/group/efmh/jacobson/ Stanford.io/Jacobson
Why do Texans pay 23% more yearly for electricity than Californians although the price of electricity in California is over twice that in Texas?
www.youtube.com/shorts/ladZt...
WindWaterSolar alone produced a year high 153.1% of demand for 5 minutes and 66.5% of 24-hour demand on 3/14/26 on the @CaliforniaISO grid
It was also the 50th of 73 (68.5%) days and 23rd straight days in 2026 with >100% WWS.
Fossil gas down now 61% in 2026 versus 2023.
Global Clean Energy Transition Timelines Reveal Stark Contrasts Between US and China
quasa.io/media/stanfo...
The paper
pubs.rsc.org/en/content/a...
Offshore wind begins saving New England from the death, illness, insecurity, and high cost of fossil fuels.
Revolution Wind begins delivering power to New England
orsted.com/en/media/new...
Two new battery records on California ISO grid:
Max battery discharge rate: 56.61 GWh/day
Max discharge rate as a percent of demand: 38.0% at 6:55 PM 3/12/26
Batteries met 10.5% of all demand
21st straight & 48/71 (68%) days in 2026 with WWS>100% of demand for part of the day
Black carbon is the 2nd-leading cause of global warming after CO2, with 1 million x the warming per mass as CO2, but a life of only weeks
Oil fires produce soot (BC+toxins)
Rain removes >90% of BC so is black
Tehran ‘black rain’-what are health effects? www.nature.com/articles/d41... @nature.com
Two new battery records on California ISO grid:
Max battery discharge rate: 56.61 GWh/day
Max discharge rate as a percent of demand: 38.0% at 6:55 PM 3/12/26
Batteries met 10.5% of all demand
21st straight & 48/71 (68%) days in 2026 with WWS>100% of demand for part of the day
Thanks for proving how energy insecure oil is and how energy secure renewables powering electric vehicles are
No need for this in a clean, renewable energy world
US to release 172 mil barrels of oil from reserve to combat energy price hike politi.co/46XAd3P @politico.com
Are wind and solar “expensive and unreliable,” as President Trump claims?
www.youtube.com/shorts/gjVy5...
Graph WWS supply as % of demand vs elec price by state
web.stanford.edu/group/efmh/j...
Table WWS supply as % of demand
web.stanford.edu/group/efmh/j...
Book
web.stanford.edu/group/efmh/j...
Here are the data that demonstrate more WWS (WindWaterSolar) means lower electricity prices
x.com/mzjacobson/s...
Strong message from important new paper: Renewable energy "is the way forward, and the faster the transition is managed, the lower in cost the energy system will be."
ietresearch.onlinelibrary.wiley.com/doi/epdf/10....
@christianonre.bsky.social @mzjacobson.bsky.social @aukehoekstra.bsky.social
WindWaterSolar rising more, gas falling more
20 straight and 47/70 >100% WWS days for part of the day, averaging 3 hours per day among all days in 2026 on the California ISO grid.
Demand down 3.5% v '23 and 0.5% v '25
WWS up 22% v '23
Gas down 60.5% v '23
Batteries up 324% v '23
1/ New research @lut.fi & collaborators from 7 institutions doi.org/10.1049/rpg2... develops new harmonisation methods to directly compare net-zero emission transition scenarios of #100RE community with scenarios from the 2022 #IEA Stated Policy & Sustainable Development.
"Why do wind, water, and solar reduce electricity price? Because they have zero fuel cost. They eliminate the energy and cost needed to mine, transport, and process fossil fuels, including from dangerous parts of the world."
In 2023, there was not a single day until spring where WindWaterSolar met >100% of demand for part of the day.
During winter 2026, so far there are already 45 of 68 such days (66%), and 18 straight.
And gas use is now down 60% vs '23
Solar up 61%, batteries up 322% vs '23
Grid demand goes below zero in South Australia.
How? Not because of a blackout, but because rooftop solar provides so much electricity, there is no need for grid electricity.
reneweconomy.com.au/big-battery-... @reneweconomy.com.au
14 reasons rooftop PV is useful
www.youtube.com/shorts/eU4oz...
Are wind and solar “expensive and unreliable,” as President Trump claims?
www.youtube.com/shorts/gjVy5...
Graph WWS supply as % of demand vs elec price by state
web.stanford.edu/group/efmh/j...
Table WWS supply as % of demand
web.stanford.edu/group/efmh/j...
Book
web.stanford.edu/group/efmh/j...
Think of this graph of real U.S. price and electricity production data, straight from the Department of Energy, next time you hear the false claim that renewables increase electricity prices and that coal, gas, or nuclear is needed to keep prices low.
In 2023, there was not a single day until spring where WindWaterSolar met >100% of demand for part of the day.
During winter 2026, so far there are already 45 of 68 such days (66%), and 18 straight.
And gas use is now down 60% vs '23
Solar up 61%, batteries up 322% vs '23
1/ New research @lut.fi shows that densely populated & energy-demanding #Belgium can transition to #100RE by 2050
doi.org/10.1016/j.se....
Comprehensive electrification leads to primary energy demand drop by up to 49% & annual system costs plummet from 40.4 b€ (2019) to <23 b€.
No. A Chevy Bolt cost 30k and the fuel savings is 30k, so it pays for itself.
Good time to replace your gasoline car with a battery-electric car and save $31,500 in fuel cost over 15 years:
= 15,000 mi/y x 15 y x ($5/gal-gas - $0.8/gal-equivalent-electricity) / 30 mi/gal = $31,500
Gasoline prices could reach $5 a gallon
abcnews.com/video/130901...
California’s solar and batteries can now produce almost twice the constant output, day and night, as its nuclear plant, at the same reliability as the nuclear plant
- but faster, cheaper, cleaner, and safer than the nuclear plant
www.youtube.com/shorts/pGwQu...
Three real-world examples, all occurring at the same time, of how fossil-fuels create energy security risks and distributed WindWaterSolar reduces them
1) Ukraine builds new power grid w/solar, wind, batteries that better withstands Russian attacks
www.warpnews.org/energy/ukrai...
I & 66 other scientists & engineers sent a letter to NY Governor Hochul & other leaders in NY on March 7, urging that no changes be made to the greeenhouse gas accounting methodology in NY's progressive climate law. Below is my cover email. Link to the letter: www.politico.com/f/?id=000001...
Fossil gas use for electricity down 59.5% in 2026 versus 2023 in the world's 4th-largest economy.
16th-straight and 43rd of 66 days in 2026 with >100% WindWaterSolar on California's main grid
Fossil gas use continues to plummet as solar & batteries rise
California’s solar and batteries can now produce almost twice the constant output, day and night, as its nuclear plant, at the same reliability as the nuclear plant
- but faster, cheaper, cleaner, and safer than the nuclear plant
www.youtube.com/shorts/pGwQu...
In sum,
1) Distributed WindWaterSolar energy is harder to destroy than centralized energy
2) WWS reduces price and blackout risks associated with importing fuels
More details here
web.stanford.edu/group/efmh/j...
2) Oil+gas prices rapidly rise as Iran war shows no signs of letting up
apnews.com/article/oil-...
3) Cuba hit by widespread power blackout amid U.S. oil chokehold
www.msn.com/en-my/news/o...