Ketan Joshi
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ketanjoshi.co
Ketan Joshi
@ketanjoshi.co
57K followers 3.6K following 23K posts
Hey, I'm a climate and energy writer / data analyst who focuses on corporate + govt accountability

Creator + curator of the Greensky feed: https://ketanjoshi.co/greensky/

Based in Oslo but write about US, Europe, Aus too - [email protected]
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ketanjoshi.co
the ratio between blade length and tower height on modern offshore wind turbines is so wild to me

By @ember-energy.org www.linkedin.com/posts/lauren...
Then and now: 25 years of offshore wind in Britain Britain's first offshore wind farm was installed in December 2000. Since then, the national wind industry has expanded to record levels. Modern turbines, such as those at Moray West in 2026, are larger, placed deeper, and generate more power than ever. BLYTH Offshore wind farm Northumberland, England Started operating 7 December 2000 Status Decommissioned after 19 years Copacity 4 MW Households powered per year equivalent 3,000 10x sizo of Blyth's 30.000 Turbines 2 MW the Modal Veston V88/2000 Burn Ενας Wandam Winds rengopra by lo από γ escriptive alt text MORAY WEST Offshore wind farm Moray Firth, Scotland Started operating 24 April 2025 Status Operational Capacity 882 MW Households powered per year equivalent 1 million Single turbine gerierates 2 Blyth's total output Turbines 14.7 MW The bad man as long as Myth und the 200 m Moray West's furties are hum 3554 the entire wind Turm Model 5014-222 DD Blades manufactured at the Siemens Gamesa factory in Hull EMBER
December 8, 2025 at 12:34 PM
ketanjoshi.co
Intensely funny because it seems like the vast majority of people at that event were convinced it was fully autonomous and Musk has repeatedly recently claimed they're not tele-operated

www.reddit.com/r/robotics/c...
RoboHub🤖 @XRoboHub Tesla's Optimus was spotted hosting in Miami today.🥂 The interaction with guests looks incredibly smooth and natural.🤖👋 Even recently, Musk fought back against the notion that Tesla relies on teleoperation for its Optimus demonstration. He specified that a new demo of Optimus doing kung-fu was “AI, not tele-operated”: AI, not tele-operated — Elon Musk (@elonmusk) October 4, 2025 Musk said again during Tesla’s last earnings call in October: “Optimus was at the Tron premiere doing kung fu, just up in the open, with Jared Leto. Nobody was controlling it. It was just doing kung fu with Jared Leto at the Tron Premier. You can see the videos online. The funny thing is, a lot of people walked past it thinking it was just a person.”
December 8, 2025 at 11:18 AM
ketanjoshi.co
Our local tram line is shut down for a month and the replacement buses are a total nightmare. A good reminder that trams are simply the best mode of transport on the planet

(I think this debacle was caused by impatient drivers trying to overtake though)
a bus driving on the footpath
December 8, 2025 at 10:40 AM
ketanjoshi.co
This is *exactly* why Amazon funds these bodies, and how these big funding $$ become a shocking control and influence mechanism.

(this is also partly why you're seeing so many individuals and organisations becoming the Volunteer Data Centre Defence Force in the climate space.....)
A person close to Amazon said that Oster had not threatened to withdraw funding but had “explained that he would expect questions why Amazon is financially supporting an organisation that is not engaging on an issue that is core to its purpose.” He had “insisted that RE-Source gauge the perspective of its members . . . and should not remain neutral on an issue of critical importance to corporate buyers of carbon-free energy.” RE-Source said that it was “only fair and normal” that its members comment on the accounting reform. Amazon’s annual contribution to RE-Source, a major European advocacy and networking initiative that facilitates deal making between clean energy buyers and sellers, is estimated at around €100,000, according to people familiar with the matter. They added that a loss of funding would be a blow to the group’s operations. The argument reveals the increasingly contentious debate over how Big Tech meets ambitious climate goals, while also spending billions of dollars in the race to build power-hungry AI infrastructure.
December 8, 2025 at 10:37 AM
ketanjoshi.co
Amazon as a company and all of their various satellite orgs and funders in the climate space are bullies. The worst type of bully: the ones who bully worse because they've convinced themselves they're doing something heroic and good

www.ft.com/content/4bbd...
Renewable energyAdd to myFT Climate rift opens between Amazon and rivals in row over data centre power US tech giant accused of pressuring top European clean energy group over changes to emissions rules A technician in a hard hat and safety vest works with a laptop on a cart between rows of server racks at an Amazon Web Services AI data centre. Amazon, Meta and Google power many of their data centres from fossil-fuel heavy grids, but say they ‘match’ their energy use with 100 per cent renewable energy © Noah Berger/Getty Images via Amazon Web Services Climate rift opens between Amazon and rivals in row over data centre power on x (opens in a new window) Climate rift opens between Amazon and rivals in row over data centre power on facebook (opens in a new window) Climate rift opens between Amazon and rivals in row over data centre power on linkedin (opens in a new window) Share Save Pro Features Configuration Kenza Bryan in London Published9 hours ago 23 Print this page Amazon has been accused of pressuring a leading clean energy group by raising the prospect of withdrawing funding, amid a furious debate over plans that would make it harder for Big Tech “hyperscalers” to hit their climate targets. Amazon has been accused of pressuring a leading clean energy group by raising the prospect of withdrawing funding, amid a furious debate over plans that would make it harder for Big Tech “hyperscalers” to hit their climate targets. The US tech giant met with Microsoft, Meta, Google and energy industry bodies during an advisory board meeting last month of clean energy buyer and seller group RE-Source, according to several attendees. At the meeting, tech groups present clashed over a proposal by the world’s leading authority on carbon accounting, the Greenhouse Gas Protocol, to tighten disclosure rules on power emissions. The reform would likely make it harder for tech groups to suggest data centre growth can be powered by clean energy. Google backed the change. But Amazon sustainability director Jake Oster opposed the move and questioned how his company could justify financing RE-Source without adopting a position on the matter, four attendees told the FT. A representative for WindEurope, one of RE-Source’s co-founders, responded that Oster’s comments sounded like a commercial “threat”, according to two attendees. A person close to Amazon said that Oster had not threatened to withdraw funding but had “explained that he would expect questions why Amazon is financially supporting an organisation that is not engaging on an issue that is core to its purpose.”
December 8, 2025 at 10:31 AM
ketanjoshi.co
So I think this is actually where ChatGPT is directly drawing on my book, because I don't think anyone has ever actually done a collation of blackouts + renewable energy attribution for Aus......ever?

It was blamed on RE but as you say it was just Vic!
Date Event Causes Response 28 September 2016 State-wide blackout, South Australia Storm, network damage, wind turbine software settings48 ‘[Windpower] wasn’t working too well last night, because they had a blackout’ – then deputy prime minister Barnaby Joyce49 30 November 2016 200 000 properties lost power, and BHP’s Olympic Dam mine site forced to reduce from 170 megawatts of consumption to 100 megawatts of consumption for 3 hours In Vic, a powerline failed, resulting in flow between states stopping, and SA required demand and supply to be rematched rapidly50 ‘BHP Billiton had its giant Olympic Dam mine shut down for the second time in 2 months by SA’s dodgy wind farms’ – Sky News host Andrew Bolt51 8 February 2017 90 000 Adelaide homes lost power during a major heatwave Higher temps and demand than forecast, a gasfired power station unavailable, accidental tripling of load shedding due to software error52 ‘So the whole problem was the failure to provide sufficient wind. The only wind blowing in South Australia is the hot air of the Labor Party’ – then energy minister Josh Frydenberg53 13 March 2017 One rotating stage at an Adele concert stopped rotating The plug fell out of the wall ‘[Sky News host] Chris Kenny says a blackout at Adele’s Adelaide concert comes at the worst time for the SA government … what an absolute embarrassment for South Australia and their state government’54 24, 25 January 2019 200 000 homes in Victoria lost power during a heatwave The Yallourn and Loy Yang Victorian coalfired power plants both suffered major outages, constraining supply55 ‘This started with what no one in the world is doing, shutting down its dispatchable power in the belief that it will be replaced by wind and solar. We have a renewables zealotry here’ – coal owner Trevor St Baker56
December 8, 2025 at 10:03 AM
ketanjoshi.co
Excellent new @commsdeclare.bsky.social work out today - read the whole thing here: commsdeclare.org/wp-content/u...

The Shell-funded education program urging students to 'design their own CCS' inspired me to re-share an original artwork of mine from a few years ago:
Activity 3 Design Challenge Use the research that you and your class have completed to design your own carbon capture and storage technology! Design Draw a diagram of your new carbon capture and storage solution. Communicate Explain how and why your design will remove carbon dioxide from the atmosphere. Create Create a prototype of your design that you can test at home or at school. Dissolved carbon dioxide in water can be tested qualitatively using universal indicator as in Activity 1, or you may research alternative methods to test carbon dioxide concentration. and it's my cartoon from a few years back of someone just leaving a fossil fuel IN THE GROUND
December 7, 2025 at 11:11 PM
ketanjoshi.co
Have been collecting up examples of prominent ppl in cleantech and climate spaces relying on chatbots as an information retrieval source........

I can't find a single example *anywhere* of the 2012 India blackouts being blamed on renewables.

archive.ph/NYfMU

www.nytimes.com/2012/08/02/w...
certainly been found to compound problems - the simple failure of wind or solar power to show up has never yet been found to be the primary cause. Quick to blame renewables, slow to repent The context here is that there is a long history of pundits and politicians blaming renewable energy for grid disruption and power cuts, only to be proven wrong. Here are a few examples (thanks ChatGPT!) July 2012 - India (world’s biggest power cut) Claim: Later renewables critics pointed to this as an example of grid instability caused by non-traditional sources. Reality: The blackout was due to overdrawing by states, poor grid management, and lack of infrastructure—not renewable energy. September 2016 - South Australia power cut Claim: Critics blamed high wind energy penetration for the state’s total blackout.
December 7, 2025 at 8:03 PM
ketanjoshi.co
One of our most significant cultural creations was a skit about America
December 7, 2025 at 7:37 PM
ketanjoshi.co
At least they have some non-problematic sponsors, like Kongsberg, who I understand manufacture cuddly toys for children who do not have cuddly toys

*presses finger to ear*

Uh, I'm afraid I'm getting some updates here

(this is all via @julieforchhammer.bsky.social's insta btw)
a sign of sponsors including kongsberg, who ARE A FUCKING WEAPONS MANUFACTURER
December 7, 2025 at 12:22 PM
ketanjoshi.co
In related news, they also love Pete Hegseth
annikenhuitfeldt's profile picture norwayinusa's profile picture norwayinusa and annikenhuitfeldt 419 likes norwayinusa's profile picture norwayinusa To mark 200 years of emigration from Norway to the United States, the Embassy hosted an event with Hans Majestet Kongens Garde and their U.S. counterpart, @armyfifeanddrum, at the Embassy last night. U.S. Secretary of Defense @secdef29, who is of Norwegian heritage and has 32 Norwegian great-great-great-grandparents (thank you Arkivverket for your research on this!) gave a speech and laid down a wreath in honor of Victory in Europe Day. Ambassador @annikenhuitfeldt also gave remarks, as did Defense Attaché Rear Admiral Ole Morten Sandquist. Many of our guests were the incredible volunteers from the Norwegian-American community who made the Embassy’s Open House on May 3 such a success (and in whose honor yesterday’s event was organized!) And thank you to the His Majesty the King’s Guard Band and Drill Unit and the U.S. Army Old Guard Fife and Drum Corps for making the night so memorable! Edited · 30w
December 7, 2025 at 11:51 AM
ketanjoshi.co
Norway's US embassy had a Christmas tree lighting ceremony sponsored by Equinor, including a massive Equinor logo right next to the tree. Somehow still not as disgusting as the grilled cheese recipe.

Norway absolutely has its own culture: it's ingrained petroganda :)
December 7, 2025 at 11:49 AM
ketanjoshi.co
Live feed of me on my way to view the film when it's released!!!!
dramatic lamentation music playing subtitle as timothieee chaalemt rolls down a hill????
December 6, 2025 at 2:52 PM
ketanjoshi.co
just found out there's a dune 3 in production!!!!!!!!!!!!!!!
a screenshot of the movie Dune, featuring a character wearing a suit and a hat holding a cloth to his face, pressing it to wipe the sweat off him. And the subtitle below says dramatic music playing. He looks worried,
December 6, 2025 at 2:51 PM
ketanjoshi.co
Not sure I've ever heard anything quite so intensely Australian as the commentary on this clip, I am CRYING
December 6, 2025 at 8:30 AM
ketanjoshi.co
Australia really needs a truly independent climate accountability body. The Climate Change Authority is basically just a pro-government advertising body at the moment, just as much as the dep't of environment is.
1 like climatechangeauthority We’ve rounded up the latest climate and energy news in this week’s edition of On Good Authority. 🌍 African forests shift from carbon sink to source – restoration and stronger conservation needed @nature.portfolio ☀️ Government invests over $1 million in NT councils for solar and energy upgrades at community fitness centres @chrisbowenmp ⚡ Electrification of industrial heat could save gas and cut energy bills by 40% @smartenergycouncil ✂️ New ACCU Scheme method to boost methane emission cuts in the waste sector @dcceew 🤖 National plan announced to guide AI growth and boost clean energy for data centres Subscribe now via the 🔗 in our bio
December 5, 2025 at 10:45 PM
ketanjoshi.co
okay australian government: now take the direct incentives you did for household batteries and do it for massive, large-scale renewable energy
December 5, 2025 at 10:30 PM
ketanjoshi.co
this stuff

iea.blob.core.windows.net/assets/601ea...
and Gas Industry in Net Zero Transitions (IEA, 2023)). AI applications in oil and gas supply can therefore help play a role in energy transitions by ensuring that sufficient supplies are available at lower cost and with lower emissions (Table 3.2). Table 3.2 ⊳ Applications of AI in the oil and gas sector Application Description Impact on energy Example Resource management Exploration and development More reliable resource evaluation; reduced predrilling uncertainty ● High: Reduced costs; faster development times Subsurface data processing; reservoir simulation Operational optimisation Operations and safety Optimising and automating production and processes; leveraging digitalised set-ups ● High: Lower costs; greater reliability and resiliency through simplified supply chains; safer working conditions; fewer failures and environmental impacts Remote operations; predictive maintenance; regulatory c
December 5, 2025 at 9:18 PM
ketanjoshi.co
Three people were arrested by the police at a data centre hearing in the US -->>>

www.datacenterdynamics.com/en/news/thre...
Three arrested at data center hearing in Port Washington, Wisconsin Unlikely to help the data center's case December 05, 2025 By Jason Ma Have your say Three people were arrested in Port Washington, Wisconsin, after they interrupted a Tuesday meeting held by the local authority to discuss a potential data center project. Although the meeting did not concern the proposal for the 902MW, so-called ‘Lighthouse’ data center, which will be developed by Vantage Data Centers as part of OpenAI and Oracle’s Stargate infrastructure project, the first thirty minutes of the meeting were taken up by public comments in opposition to the facility. Vantage Data Centers – Vantage Data Centers Video footage of the incident shows police arresting three women, among them Christine Le Jeune, a member of the non-profit organization Great Lakes Neighbors United. Le Jeune had made a speech criticising the project and the Port Washington Common Council, but she was forced to conclude early after going over the three-minute time limit on public comments. This was met with applause and brief shouting, which subsided before the next speaker began her speech. A police officer can then be seen speaking to Le Jeune and two others. More officers then gather around, and video footage eventually shows officers dragging all three individuals across the floor before handcuffing and escorting them out. Police told Fox that two of the women were arrested because they dropped to the ground and grabbed Le Jeune to prevent her from being taken out of the premises. Earlier in the meeting, a member of the Council had asked members of the audience to “refrain from interrupting anyone during their public comment portion.” Otherwise, they would be removed. Police also said that they had given multiple warnings to the crowd not to disturb the meeting. But commentators online have questioned whether the arrest constituted an overreaction to the actions of the three individuals. This incident will likely…
December 5, 2025 at 1:48 PM
ketanjoshi.co
Also google seems to be creating slop titles for search results now, how cool!!!!!!
Instagram · ketanjoshi19 10+ likes · 1 month ago Bjorn Lomborg Europe's solar boom is breaking the grid Subscribe Unreliable renewables caused a record 8,645 voltage exceedances last year ... Bjorn Lomborg on X
December 5, 2025 at 1:06 PM
ketanjoshi.co
Trying to find a post from a journalist on the Spain blackout and so many Grok responses come up - in this case you can see two COMPLETELY different claims.

No wonder the people still using that site are fundamentally just losing all connection to reality
spain solar voltage Top Latest People Media Lists See new posts Search timeline James B 🇬🇧 @JamesBu13038447 · Nov 26 Replying to @Tw_timerAlder @HideColin and @afneil Other countries are in a better location to take advantage of solar for example but even Spain have massive problems with grid frequency and voltage reliability. All caused by being too hasty and not cautious and careful transitioning Grok @grok · Nov 19 Replying to @PenseeMagique @runrunfrom1900 and 2 others Spain's 2025 blackout stemmed from excessive voltage—a novel grid control failure—not renewable intermittency, per ENTSO-E and official reports exonerating high solar/wind output. While interconnections and tech are vital, Poland's shift from 91% coal to 43% (with RE at 39%) Show more smopecakes @lastsaskliner · Nov 19 Replying to @tmitsss and @ChrisMartzWX And more people in Spain died from the voltage blackout caused by too much solar without nearby stabilizing turbines in their south MTB Mayo @MtbMayo · Nov 8 Replying to @Nick_Delehanty We 100% need a high voltage interconnector to Spain. Import solar power from Spain. They're overcapacity. In return we can export wind power at night. Grok @grok · Nov 7 Replying to @jpderekpsp @FringeBtc and @MarkJCarney Spain's aggressive net zero push toward renewables triggered a major 2025 Iberian blackout, where high solar penetration caused voltage oscillations and cascading failures, leaving millions without power for hours amid grid instability from low inertia. Critics highlight how Show more
December 5, 2025 at 1:03 PM
ketanjoshi.co
Missed this - JD Vance met with a solar power manufacturing company and the company's stock value soared. Lots of talk of 'energy dominance' etc

finance.yahoo.com/news/t1-ener...
T1 Energy CEO Discusses Energy Dominance with Vice President JD Vance November 21, 2025 PDF VersionPDF T1 Energy CEO discusses energy with U.S. Vice President JD Vance. T1 Energy CEO discusses energy with U.S. Vice President JD Vance. T1 Energy Chair & CEO Dan Barcelo, right, meets with U.S. Vice President JD Vance on the sidelines of a policy conference in Washington D.C. AUSTIN, Texas and NEW YORK, Nov. 21, 2025 (GLOBE NEWSWIRE) -- T1 Energy Inc. (NYSE: TE) (“T1,” “T1 Energy,” or the “Company”) Chairman and CEO Dan Barcelo held a discussion with U.S. Vice President JD Vance Thursday on the sidelines of a policy conference in Washington D.C. “It was an honor to meet with Vice President Vance and discuss the resurgence of American energy and manufacturing,” said Dan Barcelo. “At T1, we are investing in energy from America, for America and by Americans. We are grateful for the Vice President’s time and attention to these critical matters. We want to thank the Vice President and the Administration for their pro-American growth economic and trade policies that have been foundational for T1’s strategy to build a domestic solar supply chain that is scalable, reliable and low cost.” As previously announced, T1 Energy is moving forward with anticipated plans to start construction of the 2.1 GW phase of its G2_Austin solar cell fab before the end the year. In October, T1 raised a meaningful portion of the capital required to begin project construction through equity capital raises. This first phase is expected to begin producing solar cells in the fourth quarter of 2026, cost $400 - $425 million with a workforce of about 1,700. T1 is committed to strengthening American energy dominance, reshoring manufacturing and establishing domestic solar supply chains. T1 owns and operates one of the world’s most advanced solar module facilities, G1_Dallas, in Wilmer, Texas. It is expected to produce between 2.6 and 3.0 GW of solar modules in 2025. T1 is building an integrated, dome…
December 5, 2025 at 12:46 PM
ketanjoshi.co
China's emissions changes have been worse than most transition scenarios that limit warming to 2C or less; albeit clearly not as bad as many anticipated ->

energyandcleanair.org/wp/wp-conten...
Figure 1 — China’s annual change in CO₂ emissions compared to energy transition pathways. China’s CO₂ emissions in 2025 are projected to increase by only 0.2% compared to last year. The figure follows a trend we have observed over the past 18 months, which showed that the country’s emission level either stayed flat or declined. China’s CO₂ emissions temporarily fell in 2022 due to a dip in economic activities and transport driven by COVID-19 restrictions. But this year marks the first time that its emissions have virtually stopped rising even though its electricity demand has clocked a strong growth. All transition pathways require China’s emissions to fall from 2020 to 2030, which means a peak well before 2030 and emissions reductions thereafter. China’s rapid progress in clean energy deployment has driven a substantial reduction in emissions from the power sector, the country’s largest source of CO₂. The sector’s emissions have been declining since March 2024, and are projected to fall by a further 0.7% in 2025 based on data that run to the end of October. The drop means that China’s clean-energy capacity, especially solar, expanded so fast during the period that the growth of clean-energy generation outpaced
December 5, 2025 at 10:49 AM
ketanjoshi.co
Imagine when you're at you're job and you need to eat six lunches instead of one if you need to use reasoning or logic in your work
Search Boris Gamazaychikov. 1st Head of Al Sustainability @ Salesforce 13h⚫ : ☑ Today, we're excited to launch v2 of AI Energy Score, with new models and now, Reasoning We've updated the leaderboard (https://lnkd.in/gjvu5BEc) with a fresh cohort of models and, for the first time, added a full Reasoning benchmark. Huge shoutout to Scott Chamberlin (with Neuralwatt) for jumping in and helping streamline the benchmarking code and extend it to reasoning workloads. This release wouldn't have been possible without him! NEW What's new ✓ Reasoning is now a supported task ✓ 39 new models evaluated across Text Generation and Reasoning tasks Streamlined code based around the new Al Energy Benchmarks framework ✓ Streamlined submission process | Key takeaways from the data >> Reasoning is energy-intensive. The reasoning models we evaluated consumed ~100x more energy than non-reasoning variants. In comparison to the same model, reasoning mode increases energy use by 500-6000x. >> Reasoning energy use is less predictable. Historically, footprint scaled with model size; now, the intensity of the reasoning process matters just as much. Smaller * more efficient if the model generates long reasoning traces. >> Are newer models more efficient? Mixed results. We compared models to those of similar-sizes from our February evaluation and found that the majority used the same or more energy, with efficiency ranging from 3% of baseline to 4x more. This challenges the narrative that newer = more efficient and highlights the importance of model selection. Learn more: https://lnkd.in/gFxquxiy AI Energy Score v2 1 + Home My Network Post Notifications Jobs
December 5, 2025 at 7:55 AM
ketanjoshi.co
....which looks like something I'm going to call the Jellyfish Chart: when a metric underperforms consistently badly, and the projections droop and dangle optimistically below.

Eg: this is emissions and total fossil generation, for Aus, 2020 to 2025:
actuals above the projections actuals above the projections
December 4, 2025 at 11:32 PM