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Jan Derk Stegeman

@digitaldutch.com
291 followers 110 following 136 posts

Nerd / Aerospace engineer

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Reposted by Jan Derk Stegeman
Jaap Burger @jaapburger.eu · 22h
This analysis helps local authorities in the Netherlands with their heat transition plans. Previous versions had already tempered expectations regarding hydrogen; now, in fact, this applies to all gases distributed via a network to every home.
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Jenny Chase @solarchase.bsky.social · 10/10/2026
41. Achieving a low-carbon transition, for most countries, will not look like winning a war or marching while waving flags. It is the ability to say "no thank you, we do not want what you are selling" to the petrostates, and walking (or cycling, or taking a bus, or driving an EV) away.
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Jenny Chase @solarchase.bsky.social · 10/10/2026
36. Solar long ago stopped being only for rich countries, and now batteries are the same.
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Jenny Chase @solarchase.bsky.social · 10/10/2026
35. The Philippines is having an amazing boom – we estimate that it will build 5.6GW of new solar in 2026, compared with 1GW last year. Plus 2.7GWh of batteries in 2026. Maybe the first market where the solar boom comes with batteries from the start.
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Jenny Chase @solarchase.bsky.social · 10/10/2026
34. Demand for solar panels to sub-Saharan Africa is rising; it was the destination for 9.4 gigawatts (GW) of Chinese module exports in the first half of 2026, compared with 13.1GW in the whole of 2025. South Africa, Nigeria, Congo, Ghana and Kenya are the largest markets.
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Jenny Chase @solarchase.bsky.social · 10/10/2026
Time for 2026 updates to my annual “opinions about solar” thread, now with storage. If you like these, you might like edition 2 of my book, Solar Power Finance Without The Jargon. A 30% discount code WSQ0437 is valid on publisher website til end of Nov 2026. www.worldscientific.com/worldscibook...
worldscientific.com
Solar Power Finance Without the Jargon
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Jake Grumbach @jakemgrumbach.bsky.social · 09/10/2026
New working paper: the Norwegian wealth tax was a huge success. The "exodus" of wealthy people never happened (less than 100 individuals left). Tax revenue increased by 71.5%. No changes in business activity or investment. www.nber.org/papers/w35854
Taxing Entrepreneurial Wealth: Evidence from
Norway, 2021-2025
Marius A. K. Ring
WORKING PAPER 35854|
DOl 10.3386/w35854
ISSUE DATE October 2026
Whether imposing higher taxes on business owners adversely affects business activity by constraining investment and inducing capitalist flight is a central question in the ongoing debate on how to tax the ultra wealthy. To shed new light, I exploit a series of related Norwegian reforms during 2021-2024 that increased dividend tax rates, removed migration-related capital gains tax loopholes, and nearly doubled the effective marginal tax rate on business wealth. These reforms spurred international debate and, allegedly, an "exodus" of Norwegian billionaires (Financial Times,
2023). While I document clear effects on migration, these responses are concentrated among the top 0.1% of the wealth distribution and mostly confined to 2022 and 2023. My results indicate that at most 100 individuals left due to the reforms. I find no evidence of significant outmigration or reduced inflows of startup founders or inventors. I estimate that absent any outmigration, wealth tax revenues would have increased by 75% from 2021 to 2024. Reform-driven outmigration lowers the revenue gain to 71.5%. My findings further show that outmigrating owners' firms remain economically active and do not reduce investment. In a broader set of analyses, I examine whether business outcomes are affected, regardless of whether owners outmigrate, since firms may reduce investment both due to liquidity constraints or distortions to owners' savings decisions. I compare firms owned by Norwegian individuals subject to the wealth tax with firms owned by foreigners and other tax-exempt entities. By merging historical ownership data from Orbis with the Norwegian shareholder register, I perform these analyses on both Norwegian and foreign-domiciled firms.
Across settings, I find no evidence that Norwegian-owned firms pay out more dividends or invest less after the reforms,…
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John Hanger @jrfhanger.bsky.social · 09/10/2026
One booking from US equates to a transport cost of $41 a barrel!! $41/Barrel Just to Transport the Oil!! That's up 9 times since last year. Economically crippling cost of fossil fuels is why most of the world is dumping them for EVs and clean energy. www.bloomberg.com/news/article... #energysky
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Urgenda @urgenda.eurosky.social · 09/10/2026
Mooi betoog over #voedselzekerheid en in lijn met #landinzicht: het zou moeten gaan over gezonde voedselproductie op de juiste plaats en gebruik maken van talenten. #7vinkjes En: "Meer plantaardig en minder dieren is een no brainer.” www.nrc.nl/nieuws/2026/...
nrc.nl
‘Kijk naar welke voedselproductie in een gebied wél werkt, in plaats van vast te houden aan zoveel mogelijk’
Jannemarie de Jonge | landschapsarchitect: Voedselzekerheid gaat verder dan een noodpakket voor acht dagen. Kijk naar het „talent” van een gebied, en pas daar je productie op aan, zegt Jannemarie de J...
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Prof Dr Ir P. Akkermans @profakkermans.bsky.social · 07/10/2026
@natuurmonumenten.bsky.social
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Follow the Money @ftm.nl · 08/10/2026
Vijf jaar geleden opende Follow the Money een kantoor in Brussel. Het plan was helder: uitzoeken waar Europees geld terechtkomt. Inmiddels zijn we talloze onthullingen, schandalen en rechtszaken verder. Waarom internationale onderzoeksjournalistiek meer nodig is dan ooit, lees je hier:
ftm.nl
Vijf jaar FTM in Europa: de dreigingen nemen toe, maar onze kracht ook
Vijf jaar geleden begon Follow the Money een onderzoeksredactie in Brussel om de macht in Europa onder de loep te nemen. De urgentie die we toen voelden, is sindsdien alleen maar toegenomen. De wereld...
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Ember @ember-energy.org · 07/10/2026
Renewables are already cheaper than fossil power, and the Caribbean has two case studies to prove it This year the Dominican Republic, host of OLACDE Energy Week 2026, awarded 326 MW of renewables + batteries at 28% cheaper than the average cost of electricity generation in 2025 🧵 1/5
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John Hanger @jrfhanger.bsky.social · 07/10/2026
Why did China's coal lose 11 points of market share in just four years? Because solar and wind gained 10.5 points of market share in just 4 years. Solar and wind rose from 10.9% of China's electricity in August 2022 to 21.4% in August 2026! #energysky
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John Hanger @jrfhanger.bsky.social · 07/10/2026
Good morning with good news: China's coal falls to its lowest August share in 2026! It fell from 64.4% in 8/2022 to 53.4% in 8/2026. August Share: 2026: 53.4% 2025: 56.3% 2024: 58% 2022: 64.4% Coal's lowest monthly share is 50.1% in May & June 2026! Solar & Wind Displace Coal #energysky
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Maria Postema @mariapostema.bsky.social · 02/10/2026
Hier is te weinig verontwaardiging over dus ik gooi hem er nog een keer in. De vuurwerkbranche wordt gecompenseerd (!) met 80 miljoen die voor spooronderhoud was bedoeld en 20 miljoen uit de klimaatpot. WTF. www.nrc.nl/nieuws/2026/...
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Jan Rosenow @janrosenow.bsky.social · 07/10/2026
BIG NEWS: Up to 75% of global energy demand could be electrified by 2050 with technologies we already have. Progress is slow and the barriers are mostly political and institutional. Today we launch the Oxford Martin Electrification Accelerator to change that. oxfordmartin.ox.ac.uk/electrification
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De Correspondent @decorrespondent.nl · 06/10/2026
Als de stroom veevoer uit verre landen opdroogt, moet twee derde van de veestapel in Nederland zo snel mogelijk worden geslacht. Vanwege het klimaat en de natuur was zo’n transitie al pure noodzaak – maar een hypersnelle versie is een ramp op zich. Waarom wacht de overheid een catastrofe af?
decorrespondent.nl
Als de internationale handel stilvalt, wordt elke megastal een massagraf
Als de stroom veevoer uit verre landen opdroogt, moet twee derde van de veestapel in Nederland zo snel mogelijk worden geslacht. Vanwege het klimaat en de natuur was zo’n transitie al pure noodzaak – ...
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George Monbiot @georgemonbiot.bsky.social · 06/10/2026
There aren't many days when you can kayak off Start Point, renowned for one of Britain's most dangerous tidal races. But yesterday the stars aligned, so I bunked off work. Delighted to see Rupert Kirkwood (the Lone Kayaker) out there. He took this picture of me +1. Before you ask: yes, it's real. 🧵
In my kayak, watching a bluefin tuna leaping beside me.
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Caring Doctors @caringdoctors.bsky.social · 05/10/2026
🌱 Hoe eten we gezond én binnen de grenzen van onze planeet? Het Planetary Health Diet: veel plantaardig, aanzienlijk minder dierlijk. Winst voor gezondheid, klimaat, biodiversiteit, dierenwelzijn én voedselzekerheid. 🌍💚 #CaringDoctors #PlanetaryHealthDiet
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Christine Teunissen @christinepvdd.bsky.social · 05/10/2026
Groen gas is niet groen en niet sociaal. Het kost veel geld en jaagt de bio-industrie aan. Toch wil PRO voor de wet groen gas stemmen, vanwege een vage toezegging van de minister. Om deze vaagheid weg te nemen, leg ik met dit amendement vast dat mest wordt uitgesloten als bron van groen gas.
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Zeke Hausfather @zekehausfather.com · 05/10/2026
Clean energy has been wildly successful. Non-hydro renewables (primarily solar and wind) have increased from near-zero in 2005 to producing 22% of global electricity, and are on track to produce more than natural gas this year:
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Zeke Hausfather @zekehausfather.com · 05/10/2026
But despite this rapid growth fossil fuel generation continues to set new records, though it has slowed down substantially compared to the rate of fossil fuel growth in the 1990s and 2000s. This leads some to argue that clean energy isn't actually reducing emissions.
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Klimaatcrisis @klimaatcrisis.bsky.social · 03/10/2026
Als we elke week allemaal één dag extra géén dieren eten, scheelt dat 0,5 Mton aan CO2 uitstoot per jaar. Laten we morgen - op #Dierendag- beginnen. #EetGeenDierenDag
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Bert Hubert 🇺🇦🇪🇺🇺🇦 @berthub.eu · 02/10/2026
Ik sprak over digitale autonomie bij KIVI, STT en NAE. Moeten we met een tractor naar Den Haag om uit te leggen dat het zo niet langer kan? Een kort overzicht van de situatie & wat er moet gebeuren in dit praatje van 15 minuten (audio) en tekst (3000 woorden): berthub.eu/articles/pos...
berthub.eu
Digitale autonomie in het kort bij KIVI, STT en NEA - Bert Hubert's writings
Onlangs sprak ik op een bijeenkomst van het Koninklijk Instituut Van Ingenieurs (KIVI), Stichting Toekomstbeeld der Techniek (STT) en Netherlands Academy of Engineering (NAE) over digitale autonomie. ...
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LeRaffl @leraffl.bsky.social · 03/10/2026
In Switzerland, heavy trucks are now more electric than passenger cars. Over the last 12 months: 28.0% of new heavy trucks were BEV 26.5% of new cars A year ago trucks were at 19%, so that's a huge jump. And buses are even further ahead at 48%.
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Felix Hamer • electricfelix @electricfelix.eurosky.social · 03/10/2026
There's only one Fickling "Nowadays, LNG is failing on all three. It’s never been clean,these days it’s not cheap, either: Just buying gas for an existing plant can cost more than building a brand-new solar-plus-storage system from scratch" Bloomberg's very best🌞🔋 www.bloomberg.com/opinion/arti...
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Justin Mikulka @justinmikulka.bsky.social · 01/10/2026
“We will no longer be consumers of imported energy. We will be solar power producers,” he told parliament earlier this month. Guess which country? Not an easy guess since so many will choose this path.
bloomberg.com
The LNG Boom Is Losing Its Biggest Asian Bet
Emerging Asia is the future of the LNG market — one that never seems to show up in present-day reality.
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David Roberts @volts.wtf · 03/10/2026
I'm not good at math, is $800 million a lot?
electrek.co
FedEx believes $300M electric truck spend will save them $800M in diesel
In a record-setting commercial truck deal, international shipping giant FedEx has placed an order for 2,000 all-electric box trucks from...
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Our World in Data @ourworldindata.org · 03/10/2026
Electricity generation per person in the United Kingdom has fallen by a third from its early-2000s peak. Globally, electricity generation per person has grown by more than 50% this century. In the United Kingdom, things have moved in the opposite direction.
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George Monbiot @georgemonbiot.bsky.social · 01/10/2026
Far from taking pride in it, the men who killed this magnificent animal should be deeply ashamed. That swift, sleek, wonderful monster, flashing with holographic colours, reduced to a dead black lump. www.devonlive.com/news/devon-n...
devonlive.com
Monster 282kg tuna landed in Brixham is 'heaviest ever' catch
Giant £4,000 Bluefin tuna caught off Devon coast could be heading to Michelin-starred restaurants
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Vincent Luyendijk @vincentluyendijk.bsky.social · 01/10/2026
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Nick Cunningham @nickcunningham.bsky.social · 01/10/2026
and from @davidfickling.bsky.social one of the wildest charts I've seen in a while on the issue. Look at that tiny black sliver of actual gas demand growth in Asia (vs forecast) and same for solar www.bloomberg.com/opinion/arti...
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Caring Farmers @caringfarmers.bsky.social · 01/10/2026
Goed nieuws: grootschalige investering in #mestvergisting is zeer onzeker. Het is dan ook een onzalig plan. Goede mest hoort op het land, en de dieren horen buiten. Niet nog meer stinkende end-of-pipe technieken, maar een natuurinclusieve landbouw! www.rtl.nl/nieuws/polit...
rtl.nl
Steun voor groen gas-wet van klimaatminister Van Veldhoven hoogst onzeker
Het is hoogst onzeker of de Tweede Kamer instemt met een nieuwe wet voor groen gas van D66-klimaatminister Stientje van Veldhoven. Die wet moet ervoor zorgen dat de productie van groen gas gaat vliege...
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Felix Hamer • electricfelix @electricfelix.eurosky.social · 30/09/2026
"Diesel consumption in China will drop more than 10% this yr, Sinopec Research Institute estimates, a shift that helped Beijing navigate this year’s oil shock & limited price rises for global markets in turn — while cutting emissions, even if coal still plays a major role in electricity generation"
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Auke Hoekstra @aukehoekstra.bsky.social · 30/09/2026
A while ago I made this chart to illustrate that yearly additions of solar and wind (in TWh of energy) are growing fast while nuclear is largely stable. But solar and wind started small versus the older and established technology nuclear. This year we've reached a new milestone.
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Michael Liebreich @mliebreich.bsky.social · 30/09/2026
My favourite chart from the @IEA special report on electrification. Electricity is only 23% of Final Energy (No big deal), but it's 37% of Useful Energy (What?) and delivers 46% of GDP (Wow!) And it's going clean, fast. Still think there's no transition? iea.blob.core.windows.net/assets/1c696...
.
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Mayk Thewessen @maykthewessen.bsky.social · 30/09/2026
Large-scale BESS project in NL Planned COD projects till 2032 7.5 GW of Power 27 GWh of Energy storage in 2032 by large-scale project alone one can expect for only 60-70% of mentioned project to reach FID and COD #battery #storage #smartgrid #renewables #battchat
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Felix Hamer • electricfelix @electricfelix.eurosky.social · 30/09/2026
“At the moment, e-trucks are mainly a Chinese phenomenon — more than nine out of 10 sold globally in the first half of 2026 were in the country, according to BNEF. But that’s changing." #alwaysbecharging #battchat 🔋🔋🔋
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John Hanger @jrfhanger.bsky.social · 30/09/2026
"The electrification of road freight is emerging as a structural force that could undermine long-term oil demand across the world." China's goals are EVs to be 50% of truck sales and 20% of its truck fleet by 2030. EVs may be 50% of truck sales in 2026. www.bloomberg.com/news/feature... #energysky
bloomberg.com
China Has an 18-Wheel Answer to Soaring Global Diesel Prices
Around a third of trucks sold in China this year will run on electricity, furthering Beijing’s goal of bolstering energy security.
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Ember @ember-energy.org · 30/09/2026
The fossil fuel share of final energy has already peaked across most of China’s industrial sectors. In light manufacturing, electricity now supplies THREE-QUARTERs of the sector’s final energy consumption ⚡ ember-energy.org/lat...
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Lauri Myllyvirta @laurimyllyvirta.bsky.social · 30/09/2026
How have the oil and gas markets balanced with exports from the Gulf restricted? In Q3, the increases in oil exports from the U.S. fizzled out, leaving even more of the shortfall to be absorbed by lower imports. For LNG, its a mix of both but also some striking jumps in imports.
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douwe @dwskkm.bsky.social · 29/09/2026
Lekker (veilig) laten staan: dood hout leeft! @ark-rewildingnl.bsky.social www.naturetoday.com/intl/nl/natu...
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Justin Gerdes @justingerdes.bsky.social · 26/09/2026
"The latest surge in fossil-fuel prices means it is now up to nine times cheaper in the UK to drive an electric vehicle (EV) than a petrol or diesel car, shows @carbonbrief.org analysis." www.carbonbrief.org/analysis-evs... via @mollylempriere.carbonbrief.org and Ho Woo Nam 🔌💡
carbonbrief.org
Analysis: EVs are now nine times cheaper than petrol or diesel to drive in the UK  - Carbon Brief
The latest surge in fossil-fuel prices means it is now up to nine times cheaper in the UK to drive an electric vehicle (EV) than a petrol or diesel car, shows Carbon Brief analysis.
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Nicolas Fulghum @nicolasfulghum.bsky.social · 29/09/2026
In May 2023, coal dropped below 10% of EU electricity for the first month on record. Since then, 22 of 39 months were below 10%. Coal is on its way out in the EU, displaced by solar and wind power.
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John Hanger @jrfhanger.bsky.social · 29/09/2026
Good morning with good news: In 6 of 9 EU countries, EV trucks are now cheaper! In Netherlands, Germany & Denmark, savings can reach €100,000, €85,000 & €69,000 respectively in 5 years. EV trucks there pay off after 2 years. Wonderful! uploads.transportenvironment.org/production/f... #energysky
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John Hanger @jrfhanger.bsky.social · 29/09/2026
Heavy trucks are ~20% of global oil demand and ~50% of global diesel consumption. So, electrifying trucking is vital for decarbonization of economies. EV truck sales are now skyrocketing in China and parts of Europe, as their TCO falls. Wonderful! uploads.transportenvironment.org/production/f...
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Ben McWilliams @bmcwilliams.bsky.social · 29/09/2026
Battery electric share of EU vehicle registrations continues to grow and break records. 28 percent of new registrations in August. Up 10 percentage points year-on-year. european-clean-tech-tracker.bruegel.org/s/E2BN1A
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Christian Stöcker @christianstoecker.de · 28/09/2026
Fun Facts: #BEVs #FCEVs #Hydrogen
Neu zugelassene batterieelektrische Autos (BEVs) in
der EU von Januar bis August 2026:

1.641.333

Verkaufte H2-Brennstoffzellenautos (FCEVs) in der EU
von Januar bis August 2026:

14
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Our World in Data @ourworldindata.org · 28/09/2026
Today, we're publishing an updated version of our topic page on forests and deforestation. Humans have been cutting down forests for millennia. The world has lost one-third of its forests since the end of the last ice age, 10,000 years ago. Half of this loss occurred in the last century alone.
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