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Mark Z. Jacobson @mzjacobson.bsky.social · 13h

World Nearing 'Crucial Turning Point' as Clean Energy Outpaces Demand - @newsweek.com

1st half of 2025 brought a small tipping point in the global energy system: @ember-energy.org

Clean sources grew more than demand and therefore they displaced some fossil fuels

www.newsweek.com/world-nearin...

World nearing 'crucial turning point' as clean energy outpaces power demand

Energy research group Ember said the global surge in clean energy more than met demand for electricity and led to the first fall in fossil fuel use this year.

www.newsweek.com

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Mark Z. Jacobson @mzjacobson.bsky.social · 13h

UK prime minister K. Starmer’s new partnership with US president Trump ushers in 'a golden age of nuclear'

But, 'Each year, nuclear adds as much net global power capacity as renewables add every two days'

www.newcivilengineer.com/opinion/a-go... @drpauldorfman.bsky.social @stephenjwt.bsky.social

A ‘Golden Age’ of nuclear? | New Civil Engineer

The reason is simple. Nuclear costs are huge and rising and significant delays are the norm. The result is that nuclear power faces the same fundamental

www.newcivilengineer.com

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Reposted by Mark Z. Jacobson

Christian Breyer @christianonre.bsky.social · 23h

1/ New research @lut.fi presents the first global analysis of inter-annual storage for #100RE systems in 145 regions doi.org/10.1016/j.ap.... Strategic generation overcapacity is a significantly more cost-effective solution than building massive storage.

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Reposted by Mark Z. Jacobson

Mark Z. Jacobson @mzjacobson.bsky.social · 1d

New record battery output of 47.2 GWh on the California ISO grid on Sun 10/5/25. 9.2% of all demand was met by batteries.

Now 191 days of 2025 with > 100% WWS for part of day.

Gas is down 18% v '24, 37% v '23
Solar up 15% v '24, 45% v '23
Demand down 1.7% v' 24, 1% v '23 despite more AI

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Mark Z. Jacobson @mzjacobson.bsky.social · 1d

New record battery output of 47.2 GWh on the California ISO grid on Sun 10/5/25. 9.2% of all demand was met by batteries.

Now 191 days of 2025 with > 100% WWS for part of day.

Gas is down 18% v '24, 37% v '23
Solar up 15% v '24, 45% v '23
Demand down 1.7% v' 24, 1% v '23 despite more AI

9 22

Mark Z. Jacobson @mzjacobson.bsky.social · 1d

Mitsubishi debuts 640 kW industrial/commercial heat pump providing hot water up to 90 C and coefficient of performance of up to 4.1 (4.1 units of heat delivered for every 1 unit of electricity used). Can be used for district heating too.

www.pv-magazine.com/2025/10/06/m...

Mitsubishi debuts 640 kW heat pump providing hot water up to 90 C

The ETI-W heat pump, with a coefficient of performance of up to 4.1, utilizes heat emitted from factory production processes as a heat source to supply hot water at up to 90 C. Debuting on the Japanes...

www.pv-magazine.com

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Reposted by Mark Z. Jacobson

Mark Z. Jacobson @mzjacobson.bsky.social · 3d

Wind-Water-Solar pushing out gas in California

Fossil gas down 17.4% year to date in 2025 v '24 and down 37.4% v '23

Wind up 2.1% v '24 and 5.1% v '23
Solar up 15.1% v '24 and 44.8% v '23
Batteries up 58.4% v '24 and 206.4% v '23

Demand down 1.4% v '24 and 1% v '23

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Reposted by Mark Z. Jacobson

Mark Z. Jacobson @mzjacobson.bsky.social · 4d

A transition to 100% Wind-Water-Solar across all energy sectors in the U.S. requires only 35% of the land used for energy by fossil fuels and biofuels today.

It is current energy that is hogging land. Renewables reduce land use.

www.youtube.com/shorts/ccu-Q...

Busting a myth on how much land is needed for the U.S. to run on 100% renewables vs fossil+biofuels

YouTube video by Mark Z. Jacobson

www.youtube.com

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Mark Z. Jacobson @mzjacobson.bsky.social · 3d

Wind-Water-Solar pushing out gas in California

Fossil gas down 17.4% year to date in 2025 v '24 and down 37.4% v '23

Wind up 2.1% v '24 and 5.1% v '23
Solar up 15.1% v '24 and 44.8% v '23
Batteries up 58.4% v '24 and 206.4% v '23

Demand down 1.4% v '24 and 1% v '23

4 51 210

Reposted by Mark Z. Jacobson

Mark Z. Jacobson @mzjacobson.bsky.social · 6d

Busting another myth. This one on how much mining is needed for fossil fuels versus renewables.

We will need orders of magnitude fewer mines and orders of magnitude less mined material in a clean, renewable energy world.

www.youtube.com/shorts/8NZ0E...

Busting a myth about how much mining is needed for fossil fuels versus renewables

YouTube video by Mark Z. Jacobson

www.youtube.com

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Mark Z. Jacobson @mzjacobson.bsky.social · 4d

A transition to 100% Wind-Water-Solar across all energy sectors in the U.S. requires only 35% of the land used for energy by fossil fuels and biofuels today.

It is current energy that is hogging land. Renewables reduce land use.

www.youtube.com/shorts/ccu-Q...

Busting a myth on how much land is needed for the U.S. to run on 100% renewables vs fossil+biofuels

YouTube video by Mark Z. Jacobson

www.youtube.com

4 31 72

Mark Z. Jacobson @mzjacobson.bsky.social · 4d

World's largest floating offshore wind turbine - 16 MW - unveiled in China.

"The system will generate about 44.7 million kWh of electricity per year, once fully operational. This is more than enough to power approximately 4,000 average US households."

interestingengineering.com/energy/world...

World's largest floating offshore wind turbine unveiled in China

China has recently unveiled the world's largest floating wind turbine which will be able to power over 4,000 homes each year.

interestingengineering.com

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Reposted by Mark Z. Jacobson

Christian Breyer @christianonre.bsky.social · 4d

1/ New @lut.fi research assesses geopolitical risks associated with 190 countries for sustainable energy trade in future doi.org/10.1016/j.se.... Each country is given a geopolitical risk score based on resilience, institutional quality, conflicts, and business

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Reposted by Mark Z. Jacobson

Mark Z. Jacobson @mzjacobson.bsky.social · 5d

France sets 1.5-GW Normandy offshore wind at €66/MWh

energiesmedia.com/france-sets-...

France sets 1.5-GW Normandy offshore wind at €66/MWh

France has announced that a consortium of companies led by French energy giant, TotalEnergies, has completed the purchase of the Normandy offshore wind project.

energiesmedia.com

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Reposted by Mark Z. Jacobson

lynda williams @lyndalovon.bsky.social · 5d

So many reasons why nuclear power cannot be a part of a cleaner energy future.
#NuclearFreeHawaii #NoNukes #NukeSky

Mark Z. Jacobson @mzjacobson.bsky.social · Aug 20

7 reasons why new large+small nuclear reactors are useless for solving air pollution, climate, or energy security

12-23 years from plan to operation
2-6x the cost of wind
9-37x the CO2e as wind
Weapons proliferation
Meltdown risk
Waste risk
Mining lung cancer

nationalinterest.org/blog/energy-...

Why New Large and Small Nuclear Reactors are Not Green

Despite their considerable allure in the eyes of many as the solution to the climate crisis, nuclear reactors are not green.

nationalinterest.org

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Mark Z. Jacobson @mzjacobson.bsky.social · 5d

France sets 1.5-GW Normandy offshore wind at €66/MWh

energiesmedia.com/france-sets-...

France sets 1.5-GW Normandy offshore wind at €66/MWh

France has announced that a consortium of companies led by French energy giant, TotalEnergies, has completed the purchase of the Normandy offshore wind project.

energiesmedia.com

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Reposted by Mark Z. Jacobson

Toni Vranjes @protect-democracy.bsky.social · 6d

California has made great strides in clean energy, but what's the outlook for the future? Experts discuss the impact of state policies and economic trends.

greenearthinsights.substack.com/p/can-califo...

Can California Maintain Its Clean-Energy Momentum?

As the Trump Administration tries to undermine clean power, many green projects in California are receiving a boost from state policies and market forces.

greenearthinsights.substack.com

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Reposted by Mark Z. Jacobson

Mark Z. Jacobson @mzjacobson.bsky.social · 6d

To accompany the video, here's the tonnage of fossil fuels versus precious metals mined today.

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Mark Z. Jacobson @mzjacobson.bsky.social · 6d

To accompany the video, here's the tonnage of fossil fuels versus precious metals mined today.

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Mark Z. Jacobson @mzjacobson.bsky.social · 6d

Busting another myth. This one on how much mining is needed for fossil fuels versus renewables.

We will need orders of magnitude fewer mines and orders of magnitude less mined material in a clean, renewable energy world.

www.youtube.com/shorts/8NZ0E...

Busting a myth about how much mining is needed for fossil fuels versus renewables

YouTube video by Mark Z. Jacobson

www.youtube.com

3 23 47

Reposted by Mark Z. Jacobson

Mark Z. Jacobson @mzjacobson.bsky.social · 7d

On restarting closed nuclear plants:

“makes no sense to go backwards to an albatross tech like nuclear”

"nuclear is more costly than wind or solar and can take 10-20 years to start new projects; solar+wind can be built+online in a fraction of that time"

iowacapitaldispatch.com/2025/09/29/s...

Sierra Club: Nuclear energy is not the solution to Iowa’s energy future • Iowa Capital Dispatch

Researchers and environmental advocates said nuclear energy plants, have environmental, health and economic concerns.

iowacapitaldispatch.com

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Reposted by Mark Z. Jacobson

Christian Breyer @christianonre.bsky.social · 6d

1/ New study @lut.fi finds #Europe's energy-industry transition to #100RE by 2040 attractive. A faster transition seems possible but results in higher costs. Close European cooperation is critical for an affordable, low-cost energy supply doi.org/10.1016/j.en...

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Mark Z. Jacobson @mzjacobson.bsky.social · 7d

China's XCMG will supply up to 200 massive 240-ton battery-electric haul trucks, to Australia's Fortescue, one of the world’s largest iron ore exporters.

Truck can carry payloads >550,000 lb; deliver ~2,550 hp, enough to climb ~17% grades & reach ~35 mph

interestingengineering.com/energy/china...

China's 240-ton electric truck fleet to transform mine operations

Chinese heavy equipment manufacturer XCMG will provide up to 200 of its 240-ton battery-electric haul trucks to Fortescue, advancing large-scale zero-emission mining operations.

interestingengineering.com

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Mark Z. Jacobson @mzjacobson.bsky.social · 7d

All addressed in this paper and many others

web.stanford.edu/group/efmh/j...

web.stanford.edu

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