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Henri Horn

@henrihorn.bsky.social
464 followers 354 following 875 posts

Clean energy expert Archived tweets (excl retweets and replies) since 2017 archived at dormant handle @hhornfi.bsky.social

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Henri Horn @henrihorn.bsky.social · 14h
Finnish consumers are finally realising that it makes sense to produce your own renewable energy. www.maaseuduntulevaisuus.fi/koti/904d9b9... www.maaseuduntulevaisuus.fi/uutiset/51e0...
maaseuduntulevaisuus.fi
Perheen sähkönkulutuksesta lähti 10 000 kWh, kun rintamamiestaloon tuli aurinkopaneelit ja tulisijoihin vesikierto
Rintamamiestalo lämpenee vesikierrolla, joka hyödyntää kiuasta ja takkaa. Puut tulevat omasta metsästä.
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Henri Horn @henrihorn.mastodon.energy.ap.brid.gy · 03/10/2026
The new #Mispel law in Germany provides clear pathway for home batteries including bidirectional EV chargers to feed into the grid and avoid double grid charges. The existing EVs on German roads already have enough battery capacity to cover the entire national electricity demand for two hours […]
mastodon.energy
Original post on mastodon.energy
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Mark Z. Jacobson @mzjacobson.bsky.social · 30/09/2026
Rep. Dave Min: "We should be leading the future, not subsidizing the horse and buggy." "China is dominating the clean energy sector, creating a clear national security issue, even as Repubs keep doubling down on aging and expensive fossil fuel technologies." youtube.com/shorts/VHwVo...
youtube.com
Rep. Dave Min: "We should be leading the future, not subsidizing the horse and buggy."
YouTube video by Rep. Dave Min
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Mayor Zohran Kwame Mamdani @mayor.nyc.gov · 01/10/2026
New York's economy grew by 4% in Q2 — more than any other state. Want to get your business off the ground? Hire only the best? There's one place to do it: New York. www.newsweek.com/new-york-lea...
newsweek.com
Map shows which state economies are growing and shrinking ahead of midterms
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Bernhard Strohmayer @bstrohmayer.eurosky.social · 01/10/2026
Die bisherige strikte Trennung von Grün- und Netzstrom wird überwunden. Für den förderfähigen Anteil der Netzeinspeisung bleibt die EEG-Marktprämie erhalten. So lassen sich Eigenverbrauch, günstiger Strombezug und Vermarktung zu höheren Preisen kombinieren. (2/5)
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Ember @ember-energy.org · 28/08/2026
#Africa’s solar boom is spreading across the entire continent, with 36 out of 54 countries set for record solar installations in 2026 🌍☀️ 19 countries saw YoY growth of over 100%, including DRC 🇨🇩 (+544%), Zimbabwe 🇿🇼 (+282%) and Egypt 🇪🇬 (+176%) ember-energy.org/lat...
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Tarmo Kalmari @tarmokalmari.eurosky.social · 01/10/2026
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Adrian Hiel @adrianhiel.bsky.social · 01/10/2026
870 French households are disconnecting from the gas grid everyday. At the current rate the gas grid will be completely abandoned in 38 years. But the rate will increase. France is entering the gas grid doom loop.
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Henri Horn @henrihorn.bsky.social · 01/10/2026
As expected, the Bring-Your-Own-Power promise by the Google datacenter investment in 🇫🇮 is misleading. The Loviisa nuclear plant was already undergoing upgrades for operation until 2050, so Google can't attribute it to their PPA. Also, the claimed 600MW 'additional' wind power is already built.
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Dr Paul Dorfman @drpauldorfman.bsky.social · 01/10/2026
Large-scale storage #batteries are the fastest-growing power technology today, according to International Energy Agency. Cost of #battery packs used in grid-scale storage systems fell by 45 % last year alone. www.ft.com/content/b847...
ft.com
The trouble with China’s bigger, better batteries
It’s the world’s fastest-growing power technology — and Beijing is dominant
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Josiah Mortimer @josiahmortimer.bsky.social · 01/10/2026
This is great news. Sunny California is legalising plug-in solar (like GB has). There were some fears Gov Gavin Newsom would veto the bipartisan law. The state has 39m+ residents and is one of the largest economies in the world. Another loss for Trump and his fossil fuel pals.
kqed.org
California Officially Legalizes Balcony Solar, Opening the Market to the New Technology | KQED
Gov. Gavin Newsom signed legislation to make it simpler for Californians to install plug-in solar panels. Models that meet state standards are expected to be on sale in mid-2027.
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Dave Vetter @davidrvetter.bsky.social · 01/10/2026
Anticipate the majority of UK media to falsely blame higher bills on "net zero", when they're directly being caused by fossil fuels.
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Commercial Solar Guy @commercialsolarguy.com · 01/10/2026
All right, we got California - so lets see what happens next
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Henri Horn @henrihorn.bsky.social · 01/10/2026
Recurring reminder that Finnish consumers still do not have this right that has been granted to tens of millions of people across Europe and the US. #BalconySolar #PlugInSolar #SteckerSolar #Balkonkraftwerk
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Marisa Kabas @marisakabas.bsky.social · 30/09/2026
the only thing worse than a dumbass is an unrepentant one
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Manuel Müller @manuelmueller.foederalist.eu · 30/09/2026
This is a bit embarrassing: 🇫🇮 PM Orpo has signed the "Frugals" letter demanding across-the-board #EUbudget cuts – although he had been campaining for *more* EU agriculture spending. Now he has distanced himself from the letter, and @hs.fi is wondering whether he was even aware what he was signing.
hs.fi
HS-analyysi | Vaikuttaa siltä, että Orpo ei itse ymmärrä, millaisen kirjeen on allekirjoittanut EU:lle
Suomi on mukana ryhmässä, joka vaatii leikkauksia myös maataloustukiin, vaikka pääministeri Petteri Orpo muuta väittää, HS:n EU-kirjeenvaihtaja Jarno Hartikainen kirjoittaa.
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The Overhead Wire @theoverheadwire.com · 30/09/2026
A global repeating story... Translated: Every few months, Lars Klingbeil finds billions to subsidize petrol and diesel for high-mileage drivers. Yet he allows the price of the #Deutschlandticket to rise unchecked year after year. Why isn't the SPD interested in its 14.5 million users?
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Peter Magulski @magulski.com · 30/09/2026
Laut Koalitionsvertrag hätte das #Deutschlandticket übrigens erst 2029 erhöht werden sollen.
Auszug aus Koalitionsvertrag:
"Das Deutschlandticket wird über 2025 hinaus fortgesetzt. Dabei wird der Anteil der Nutzerfinanzierung  ab 2029 schritt weise und sozialverträglich erhöht.
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Christian Stöcker @christianstoecker.de · 29/09/2026
This seems bad. #Trump #GOP #Bondyields
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johnmillen.bsky.social @johnmillen.bsky.social · 29/09/2026
Cars ruin cities. @thewaroncars.bsky.social
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John Hanger @jrfhanger.bsky.social · 29/09/2026
US Has 40 GW in Virtual Power Plants and Growing! This is the cleanest, lowest cost electricity resource. Vermont utility, Green Mountain Power, aggregated home batteries into 110 MW virtual power plant. That's Vermont's largest electricity resource. www.bbc.com/future/artic... #energysky
bbc.com
The US state replacing power plants with home batteries
Spread across thousands of ordinary homes, Vermont's virtual power plant has become its largest power source. It's protecting owners from outages and providing cheaper, cleaner energy.
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Jaap Burger @jaapburger.eu · 29/09/2026
Not an EU Member State, but Switzerland may have the most local energy communities
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Jaap Burger @jaapburger.eu · 29/09/2026
18 of 27 EU Member States have not reported to the European Commission how they implement energy sharing in national energy law. (via @henrihorn.bsky.social) The 2024 EMD Directive gives households and SMEs the right to organise themselves at local level and share energy.
pv-magazine.com
EU opens infringement cases against 18 states over energy-sharing rules - pv magazine Global
Two-thirds of EU member states face infringement action for failing to enact a new right to share renewable electricity over the grid.
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Nukes of Hazard @nukesofhazard.bsky.social · 28/09/2026
National security analyst & author @joecirin.bsky.social talked about the historical fallacy of national missile defense during the #CACNP26 annual conference earlier this month. 🔗 Listen to the Nukes of Hazard episode now: ow.ly/jAll50ZSlzc
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Union of Concerned Scientists @ucs.org · 28/09/2026
Justice Samuel Alito has recused himself from the upcoming Suncor v. Boulder climate case. His oil stock ownership & relationship with investor Paul Singer has been widely reported. “Justice Alito's decision is the bare minimum we should expect from a justice on our nation’s highest court.”
nam04.safelinks.protection.outlook.com
Justice Alito’s Recusal from Climate Case is the “Bare Minimum” to Address Glaring Conflict of Interest
Office of the Clerk for SCOTUS announced Justice Alito will not participate in the Suncor v. Boulder case, which SCOTUS is set to hear arguments for in one week. Statement by Kathy Mulvey at the Union...
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gamera obscura october edition @ohrobin.bsky.social · 28/09/2026
Google earth has updated its satellite images of Gaza. The destruction is almost incomprehensible.
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Henri Horn @henrihorn.mastodon.energy.ap.brid.gy · 28/09/2026
Finland is once more one of the baddies. EU is upset that Finland doesn't allow electricity consumers to share self-generated or stored renewable electricity with other customers “within the same bidding zone or a more limited geographical area,” as the Directive (EU) 2024/1711 mandates […]
mastodon.energy
Original post on mastodon.energy
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Dr Paul Dorfman @drpauldorfman.bsky.social · 27/09/2026
In early September, the organization behind Canada’s push for small modular nuclear reactors (SMRs) quietly signalled their demise. www.theenergymix.com/rip-smrs-is-...
theenergymix.com
RIP SMRs: Is It the End of the Line for Small Modular Nuclear Reactors?
In early September, the organization behind Canada's push for small modular nuclear reactors (SMRs) quietly signalled their demise, researcher and author Susan O'Donnell writes in analysis for The Ene...
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Elektrizitätswerke Schönau @ewsschoenau.bsky.social · 28/09/2026
Bundeswirtschaftsministerin #Reiche pries auf offener Bühne die Rückkehr zur #Atomkraft an und wollte auf Small Modular Reactors (SMR) setzen. Ein Realitätscheck kommt aus ihrem eigenen Haus: #SMR seien „nicht marktfähig“ und weit entfernt davon, ihr Kostenversprechen einzulösen.
n-tv.de
Reiches Fachleute zweifeln offenbar an Mini-AKW
Immer wieder werden sie als preiswerte Lösung ins Spiel gebracht: kleine Kernkraftwerke, sogenannte Small Modular Reactors. Doch ausgerechnet im Haus von Wirtschaftsministerin Reiche zeigen sich laut ...
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Commercial Solar Guy @commercialsolarguy.com · 28/09/2026
‘Solar farms contained a greater bird abundance and species richness than arable farmland, but this varied with solar farm management’ We are comparing solar to bleached land though, so let’s not pretend anything. The birds, like the pollinators though, can be leveraged to better food production.
tandfonline.com
Solar farm management influences breeding bird responses in an arable-dominated landscape
Solar farms are increasing in Britain, but their biodiversity impact is under-studied. We explored bird populations on six solar farms in the East Anglian Fens, using an adapted Breeding Bird Surve...
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Sami Eerola @eerolasami.bsky.social · 27/09/2026
Leopards eating face party at it again:
Nick Fuentes Says Being Right-Wing Is All About "Hating Women, Being Racist, Being Antisemitic'
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Solja Pistol @soljapistol.bsky.social · 27/09/2026
Patologinen valehtelija uskoo puhuvansa totta, ei osoita perinteisiä valehtelun fyysisiä merkkejä, kuten sydämen tykytystä, hikoilua tai hermostuneisuutta. Hän voi kertoa uskomattomia tarinoita täysin tyynenä ja vakuuttavasti, mikä tekee hänestä erittäin taitavan manipuloijan. Liittyy narsismiin.
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Henri Horn @henrihorn.mastodon.energy.ap.brid.gy · 22/05/2026
Pennsylvania gets it: the additional grid costs created by data centers should be paid by data centers, not everyone else. www.utilitydive.com/news/pennsylvan…
utilitydive.com
Pennsylvania releases ‘first-of-its-kind’ large-load model tariff
The guidelines call for utilities to charge large-load customers for upgrades that “would not have been needed ‘but for’ the interconnection” of that customer, “irrespective of whether other customers will benefit” from the infrastructure.
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Henri Horn @henrihorn.mastodon.energy.ap.brid.gy · 23/09/2026
While Google announces three new massive #DataCenters in #Finland with no limits to energy use, their home state is passing laws ensuring that "those profiting from data centers aren’t doing so at our expense." Data centers must pay for: -transmission and distribution upgrades and load […]
mastodon.energy
Original post on mastodon.energy
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Henri Horn @henrihorn.mastodon.energy.ap.brid.gy · 24/09/2026
Helsinki’s new Kaivokatu plan is meant to make the city centre around the Railway station safer by banning through for private cars and giving more space to pedestrians and cyclists. But the national federation of visually impaired has appealed against the plan, saying the open layout, more tram […]
mastodon.energy
Original post on mastodon.energy
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Henri Horn @henrihorn.mastodon.energy.ap.brid.gy · 27/09/2026
Contrary to what the Finnish army has always claimed, research of Lappeenranta University suggests that #WindPower offers better opportunities for surveillance of Finland's border with Russia. Passive radar equipment on towers can improve detection of low-flying drones despite some interference […]
mastodon.energy
Original post on mastodon.energy
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Henri Horn @henrihorn.bsky.social · 27/09/2026
Careful not to buy any American dairy products or pay for any by content from Wall Street Journal. Framing Environmental, Social and Governance sustainability as 'radical climate agendas' is quite disappointing. www.wsj.com/opinion/usda...
wsj.com
Opinion | Ending the ESG Dairy Heist
The USDA settles a lawsuit against a coercive farm payment.
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Kimberley Johnson @kimberleyjohnson.bsky.social · 26/09/2026
But I need to smile more.
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Senator Ed Markey @markey.senate.gov · 25/09/2026
Trump’s proposed nuke deal with Saudi Arabia could help them build nuclear bombs and ignite a nuclear arms race in the Middle East. This dangerous deal would enrich Trump's cronies but make everyone less safe. No nukes for Saudi Arabia. Trump must cancel this deal immediately.
Screenshot of letter. Full text of letter linked in reply.
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Joe Cirincione @joecirin.bsky.social · 25/09/2026
Don't kid yourself. Selling uranium enrichment centrifuges to Saudi monarchs is not an energy program. This is a Saudi nuclear bomb program. The deal is corrupt from top to bottom. If the Trump Family were not making money on the deal, we wouldn't be making it. My argument: youtu.be/ToqeQJbvYPg?...
youtu.be
Does the U.S.-Saudi Civil Nuclear Agreement Serve America's Interests?
YouTube video by Open to Debate
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Lee West @whodat35.bsky.social · 24/09/2026
Two Minnesota solar farms turned the ground beneath their panels into habitat, and native bee abundance rose more than 20-fold www.ecoticias.com/en/two-minne...
ecoticias.com
Two Minnesota solar farms turned the ground beneath their panels into habitat, and native bee abundance rose more than 20-fold
Minnesota solar farms planted with native flowers saw native bees rise 20-fold, with bees also pollinating nearby soybean fields.
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Henri Horn @henrihorn.bsky.social · 24/09/2026
Lappeenranta University, case Finland: "Tripling nuclear energy capacity by 2050, as proposed by the COP28 declaration, would lead to significantly higher annualised costs and levelised costs of electricity compared to a cost-optimised system that prioritises renewable energy sources."
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Henri Horn @henrihorn.bsky.social · 24/09/2026
As if evolution came with a built-in bug-fix feature: This racist dating site was white only, but reportedly 88% male. Its security was so poor that, while a hacker was being interviewed live, she downloaded all the user profiles and deleted the entire site.
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Henri Horn @henrihorn.bsky.social · 21/09/2026
At least #Finland gets one thing right: #ThermalBatteries for industrial heat.
A graph indicating that Finland has more Thermal Battery projects than any other country (17), For all that activity, Finland’s projects add up to only about half a gigawatt-hour.
China has 15 projects but about 7 GWh of disclosed capacity, half the global total. The US is second on capacity, but almost entirely because of one single 5 GWh system.
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Jan Rosenow @janrosenow.bsky.social · 20/09/2026
Agreed - there is also large scale thermal energy storage e.g. this one which will be world's largest at 90 GWh: www.vantaanenergia.fi/en/about-us/...
vantaanenergia.fi
Varanto - The Cavern Thermal Energy Storage - Vantaan Energia
The World's Largest Cavern Thermal Energy Storage
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Henri Horn @henrihorn.bsky.social · 16/09/2026
Investing in Russian government bonds would have over twice the yield PER MONTH compared to Swiss bonds per year (0.54%)
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Henri Horn @henrihorn.bsky.social · 16/09/2026
Hallitusohjelma: "Hallitus huolehtii pienen mittakaavan uusiutuvan sähkön- ja lämmöntuotannon investointi­ympäristöstä. Vahvistetaan kotitalouksien ja yritysten mahdollisuuksia rakentaa omaa sähköverkkoa ja kytkeä siihen sähkön pientuotantoa..." Tämäkin lupaus rikottiin
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Henri Horn @henrihorn.bsky.social · 15/09/2026
Finnish media is finally catching on #BalconySolar benefits: ✅ energy security ✅ decarbonisation ✅ cost But this interview with @jeroahola.bsky.social contains two misleading figures: 🇩🇪 Germany has 4-5 million units in use, not 1 million 💶 Prices start at €240, not €500 yle.fi/a/74-20245351
yle.fi
Yli miljoona saksalaista tuottaa jo halpaa sähköä itselleen – Suomen viranomainen: Ei käy
LUT-yliopiston professorin mielestä Suomen pitäisi selvittää, onko laajalti Euroopassa hyväksytty aurinkovoiman muoto mahdollista hyväksyä myös Suomessa.
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Henri Horn @henrihorn.mastodon.energy.ap.brid.gy · 14/09/2026
Another remarkable discovery in the Finnish media is that #BalconySolar is actually safe and making huge progress worldwide. It feels as if Finns had no idea what is happening outside our borders. Germany already has millions of #Balkonkraftwerk units in use and Finland still claims this […]
mastodon.energy
Original post on mastodon.energy
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Henri Horn @henrihorn.mastodon.energy.ap.brid.gy · 14/09/2026
Even the traditionally pro-nuclear Finnish media appears to finally comprehend that nuclear power is prohibitively expensive. yle.fi/a/74-20245890
Graphic showing production cost of one megawatt hour of electricity for onshore wind 51, solar 56, offshore wind 126 and nuclear 150 to 200 euros
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