From the last graph, it is clear that WindWaterSolar follows load (demand) seasonally far better than does a baseload (flat) electricity source such as nuclear or coal.

Every day is a new record. Two more 100% WindWaterSolar days for part of the day in CA, making it 213 100% days so far in 2025. CA will be 100% WWS 24/7/365 by 2037. PV and batteries are replacing gas rapidly. Gas down 18% versus 2024 and 37.4% versus 2023.

From the last graph, it is clear that WindWaterSolar follows load (demand) seasonally far better than does a baseload (flat) electricity source such as nuclear or coal.

Every day is a new record. Two more 100% WindWaterSolar days for part of the day in CA, making it 213 100% days so far in 2025. CA will be 100% WWS 24/7/365 by 2037. PV and batteries are replacing gas rapidly. Gas down 18% versus 2024 and 37.4% versus 2023.

Busting a Myth: Clean, Renewables Lower Electricity Prices 11 US states met 51-120% of their electricity demand for the year between mid 2024-2025 with just clean, renewable sources. Of these, 10 had electricity prices at least 2 c/kWh below the US avg www.youtube.com/shorts/deygz...

California's transition to clean power is a trendsetter. World's 5th largest economy. For 7 months this year, California generated more than 100% of its power needs from clean sources for part of the day. A huge validation of how RE potential is limitless, affordable and reliable.

After 10 months of '25, we have ~7 months (211 days) with WindWaterSolar powering >100% of CA's main grid for part of the day And look: Little wind Sat day but still 100% WWS Gas down 18% v '24; 37% v '23 Demand down 2% v '24; 1.4% v '23 Solar up 15% v '24; 43% v '23 Batt up 56% v '24; 199% v '23

1/ New @lut.fi research investigates Shetland's energy future, finding it can reach #100RE & become a green e-hydrogen export hub for #Europe by 2050. doi.org/10.1016/j.en.... Potential to export over 626 TWh (H2,LHV) annually at a competitive cost of 77.6 €/MWh (H2,LHV).

Busting a Myth: Clean, Renewables Lower Electricity Prices 11 US states met 51-120% of their electricity demand for the year between mid 2024-2025 with just clean, renewable sources. Of these, 10 had electricity prices at least 2 c/kWh below the US avg www.youtube.com/shorts/deygz...

My talk to the Elders Climate Action Group on what is needed to transition the world to 100% clean, renewable, energy across all energy sectors; what has been done to date; and what rate countries, states, and the world are transitioning. Some surprises www.youtube.com/watch?v=YOXw...

There is so much rooftop solar in South Australia that at times it supplies the whole state's needs. It's time the U.S. cut red tape so distributed energy can proliferate. Thanks @mzjacobson.bsky.social for the inspiration for today's column. #greensky 🔌💡 #solar www.rtoinsider.com/118104-power...

Brief and clear (though US-oriented) explainer by @mzjacobson.bsky.social on why biofuels are nothing like as "green" as they are portrayed:

A very helpful explanation of ethanol green washing.

Another 6 days straight and 208 of 300 in 2025 with WindWaterSolar powering CA's main grid for part of the day CA 54.24% in-state WWS for all of 2025, 3.87% higher than last year's 50.37%. At this rate, CA will be 100% WWS 24/7/365 by 2036. Gas down 18.5% v '24 & 37.4% v '23

Why Ethanol for Vehicles, Even With Carbon Capture, Increases CO2 and Pollution and Should be Abandoned Ethanol damages climate & air quality, raises costs, & requires enormous land vs battery-electric vehicles powered by wind or solar www.youtube.com/watch?v=B6E1...

Just a reminder that the sun shines, the wind blows, the water flows, and the Earth creates heat every day 206 days in 2025 so far with WindWaterSolar exceeding 100% of demand on CA's main grid for part of the day, averaging 3.9 among all 298 days in 2025 And fossil gas is down 37.4% in 2 y

Just a reminder that the sun shines, the wind blows, the water flows, and the Earth creates heat every day 206 days in 2025 so far with WindWaterSolar exceeding 100% of demand on CA's main grid for part of the day, averaging 3.9 among all 298 days in 2025 And fossil gas is down 37.4% in 2 y

Australia overtakes United Kingdom to rank 3rd behind China and the United States in utility-scale battery capacity Australia 14 GW/37 GWh of projects at / nearing financial close (Current operating: 8,616 MW / 18,121 MWh) pv-magazine.com/2025/10/21/a... ping @mzjacobson.bsky.social

New paper on the much lower cost, even in different climate zones, of 100% renewable microgrids that include heat pumps, battery storage, hydrogen storage with fuel cells, and thermal-energy storage, vs microgrids powered by diesel generators. www.sciencedirect.com/science/arti...

Why carbon capture and direct air capture increase CO2, air pollution, pipelines, mining, and costs, thus do nothing beneficial, so should be abandoned - Long version. youtube.com/shorts/13Tkj... More info: web.stanford.edu/group/efmh/j... web.stanford.edu/group/efmh/j...

204 days in 2025 w/100% WindWaterSolar on CA main grid for part of day 61.7% of all demand in '25 met by WWS: 54.3% in-state WWS & 7.4% imported WWS (58% of 12.68% imports) Gas down 18.2% v '24 & 37.3% v '23 Solar up 14.4% v '24 & 43.1% v '23 Batteries up 56% v '24 & 201% v '23

204 days in 2025 w/100% WindWaterSolar on CA main grid for part of day 61.7% of all demand in '25 met by WWS: 54.3% in-state WWS & 7.4% imported WWS (58% of 12.68% imports) Gas down 18.2% v '24 & 37.3% v '23 Solar up 14.4% v '24 & 43.1% v '23 Batteries up 56% v '24 & 201% v '23

California hits new energy milestone - batteries dispatch more than 25% of California's evening power Here: www.linkedin.com/posts/sam-zo... @samzouai.bsky.social More here from @mzjacobson.bsky.social bsky.app/profile/mzja... Some Western Australian experience in the thread below

Why carbon capture and direct air capture increase CO2, air pollution, pipelines, mining, and costs, thus do nothing beneficial, so should be abandoned - Long version. youtube.com/shorts/13Tkj... More info: web.stanford.edu/group/efmh/j... web.stanford.edu/group/efmh/j...

Have a listen to Professor @mzjacobson.bsky.social explain in 93 seconds why carbon capture and storage or direct air capture projects on fossil fuel development should cease. youtube.com/shorts/GvFir... Carbon capture, pipelines, and LNG are NOT in the nations best interest. #cdnpoli #abpoli

New paper on the much lower cost, even in different climate zones, of 100% renewable microgrids that include heat pumps, battery storage, hydrogen storage with fuel cells, and thermal-energy storage, vs microgrids powered by diesel generators. www.sciencedirect.com/science/arti...

Great points from @mzjacobson.bsky.social: ”Why small-scale, non-utility solar is important” I would add two more (1) a vital source of needed creative destruction in energy markets comes from ‘small-scale’ (2) anything that upsets utilities is good to do pv-magazine-usa.com/2025/10/16/w...

Clean electricity creating clean air keeps coming 202 of 293 days (69%) in 2025 w/WWS meeting >100% of demand for part of day, including 6 days straight Gas down 18.4% v '24 & 37.4% v '23 In-state WWS supplying 54.4% of all demand in 2025, plus 58% of 12.63% of imports, so really 61.7% of demand

It has happened! 200 days of 100% WindWaterSolar on CA's main grid in 2025 Including a record battery output of 47.69 GWh on 10/17 Gas down 18.5% v '24 & 37.2% v '23 PV up 14.6% v '24 & 43.5% v '23 Batteries up 56.8% v '24 & 202.7% v '23 Demand down 2.1% v '24 & 1.3% v '23

More than ten reasons why small-scale, non-utility solar is important pv-magazine-usa.com/2025/10/16/w... More info web.stanford.edu/group/efmh/j...

@mzjacobson.bsky.social Stanford University Professor of Civil and Environmental engineering explains how Carbon Capture and Storage INCREASES emissions www.youtube.com/shorts/GvFir...

Excited #StillNoMiraclesNeeded is closer to release. About techs that are useful and not for addressing climate, pollution & energy security Preorder www.waterstones.com/book/still-n... Code OCTOBER25 at checkout for 25% off this week @waterstones.bsky.social @universitypress.cambridge.org

It has happened! 200 days of 100% WindWaterSolar on CA's main grid in 2025 Including a record battery output of 47.69 GWh on 10/17 Gas down 18.5% v '24 & 37.2% v '23 PV up 14.6% v '24 & 43.5% v '23 Batteries up 56.8% v '24 & 202.7% v '23 Demand down 2.1% v '24 & 1.3% v '23

Marching toward 200 100% WindWaterSolar days in CA Oct 16: 198th day in 2025 w/WWS >100% of demand WWS met 54.5% of demand in '25 Gas down 37% v '23 & 19% v '24 PV up 44% v '23 & 15% v '24 Batteries up 203% v '23 & 57% v '24 Demand down 1.2% v '23 & 2.1% v '24 despite more AI

Seven reasons why new small and large nuclear is useless, explained in 90 seconds www.youtube.com/shorts/EKszV... and all the details web.stanford.edu/group/efmh/j...

Carbon capture and direct air capture increase CO2 and air pollution and should be abandoned. Here's why in 90 seconds: www.youtube.com/shorts/GvFir... More information web.stanford.edu/group/efmh/j...

I'm looking hard, but I can't find any days (let alone weeks) without any sunlight, any days without any wind, any days without any hydro, or any days without any geothermal Same with last year, the year before, etc. And no-one needed to drill for the wind, water, or solar So unreliable this WWS

Marching toward 200 100% WindWaterSolar days in CA Oct 16: 198th day in 2025 w/WWS >100% of demand WWS met 54.5% of demand in '25 Gas down 37% v '23 & 19% v '24 PV up 44% v '23 & 15% v '24 Batteries up 203% v '23 & 57% v '24 Demand down 1.2% v '23 & 2.1% v '24 despite more AI

The state of the art of carbon capture as proposed by the fossil fuel industry is yet more greenwashing. Right now carbon capture makes the climate disaster WORSE. This short video explains why. Canadians should not squander tax dollars to subsidize carbon capture for Big Oil & Gas. #RenewableEnergy

This needs to be shared widely to counter the BS spread by utility operators who claim rooftop solar increases costs to consumers. Thanks @mzjacobson.bsky.social

Mark Z Jacobson was making this style of graph for a while now. Not sure how. I think he must be scraping CAISO and has his own graph creation tool (CAISO doens't display these type of visual graphs). Here's Mark's latest: bsky.app/profile/mzja...

More than ten reasons why small-scale, non-utility solar is important pv-magazine-usa.com/2025/10/16/w... More info web.stanford.edu/group/efmh/j...

Carbon capture and direct air capture increase CO2 and air pollution and should be abandoned. Here's why in 90 seconds: www.youtube.com/shorts/GvFir... More information web.stanford.edu/group/efmh/j...

Excited #StillNoMiraclesNeeded is closer to release. About techs that are useful and not for addressing climate, pollution & energy security Preorder www.waterstones.com/book/still-n... Code OCTOBER25 at checkout for 25% off this week @waterstones.bsky.social @universitypress.cambridge.org

1/ New research @lut.fi reviews the #100RE systems literature doi.org/10.1016/j.rs... for the full range of technologies and trends for a sustainable energy transition based on 1067 articles from 1975 to 2023.

And here's a longer version of why new nuclear is useless for addressing air pollution, climate, or energy security. www.youtube.com/shorts/3O9Bl...

Picture perfect California weekend 195th & 196th days in 2025 with >100% WindWaterSolar for part of day WWS peaked at 135% of demand both days Gas down 19% v '24 & 37% v '23 Batteries up 57% v '24 & 205% v '23 Solar up 15% v '24 & 44% v '23 WWS 54.6% of demand v 46.7% in '23

Seven reasons why new small and large nuclear is useless, explained in 90 seconds www.youtube.com/shorts/EKszV... and all the details web.stanford.edu/group/efmh/j...

Truely impressive - long term strategic investment in solar from China. Contrast that with the chop and change policies of the West. #Copernicus #Sentinel2 False Colour timelapse (Bands 8, 4, 3) 2015 - 2025 July scenes only. Imagery from Copernicus Browser link.dataspace.copernicus.eu/xzj0

In 2024, renewables added 582 GW (91% of new power) while nuclear added as much as renewables added in two days. "Nuclear costs are huge and rising," write Stanford's Mark Jacobson, Amory Lovins, and co-authors. Read the full opinion piece: www.newcivilengineer.com/opinion/a-go... #nuclear