Dr. Juho Heiska
@Juuhonber
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Dad đŠđ§đŠđ§ | Husband | Jokku kutsuu akkutohtoriksi | SeAMK - R&D Manager | Jos se on @Juuhonber se oon mĂ€.
SeinÀjoki, Finland
Joined July 2009
Yksi toistuvampia kysymyksiĂ€ itselleni on: Voiko LFP-akun lataa tĂ€yteen? Lyhyt vastaus on, ettĂ€ voi. Usein vĂ€itetÀÀn, ettĂ€ LFP:lle ei ole vĂ€liĂ€ kĂ€yttÀÀkö akkua 0-100% tai 20-80% vĂ€lillĂ€. TĂ€mĂ€ ei ole totta. âïž
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Bitcoin-louhinta = lĂ€mpölaitos + joustokuorma. @MinersLoop @PeteKarjalainen & Roni kertovat, miten hukkalĂ€mpö â ~95 °C kaukolĂ€mpöön ja miksi louhinta imee miinustunnit & sammuu kun hinta karkaa. VĂ€hemmĂ€n hypeĂ€, enemmĂ€n fysiikkaa: https://t.co/YB1au5FndL
#energia #bitcoin
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KUKAAN ei kysynyt. MUTTA minÀ vastaan! MitÀ tapahtu Northvoltille? MitÀ nousee(ko) Northvoltin raunioilta? https://t.co/jSR3BWQslC
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The U.S. Treasury issued its much-anticipated updated guidance on how wind and solar projects can qualify for subsidies under the One Big Beautiful Bill Act. A brief thread. https://t.co/9cNaVUJvmf
news.bloombergtax.com
The Treasury Department and IRS released guidance on what is considered beginning construction for clean energy projects trying to qualify for tax credits, generally nixing a prior guideline on...
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9/ If we align incentives, keep rigor, and accept that some frontiers may be unreachable⊠Science can stay both honest and impactful.
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8/ This isnât a call to stop exploring. Itâs a call for brutal honesty â with scientists, funders, and the public â about whatâs plausible, whatâs worth the cost, and how we define âprogress.â
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7/ Think: âą Carbon capture with questionable net benefit âą Hydrogen in inherently inefficient applications Physics doesnât bend for policy goals.
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6/ And hereâs the systemic kicker: You canât force research to grow GDP if thereâs nothing relevant left to find. Throwing billions at tech that fights thermodynamics = you lose.
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5/ Example: warp drives. You can write the equations. But if they need huge amounts of negative energy forbidden by physics, theyâll never leave the page.
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4/ That creates 2 uncomfortable realities: 1ïžâŁ Diminishing returns â Each new discovery costs vastly more resources. 2ïžâŁ Limits of nature â Some ideas, while mathematically possible, may be physically impossible.
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3/ The low-hanging fruit is gone. Early in a field, the big wins are obvious â Newtonâs laws, DNAâs structure, the first transistors. Now? Breakthroughs take orders of magnitude more time, money, and precision.
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2/ Physicist Sabine Hossenfelder calls out systemic problems: âą Perverse incentives âą Publish-or-perish culture âą Hype over rigor Sheâs right â but thereâs a deeper problem
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1/ When science runs out of low-hanging fruit đ Weâve solved the easy problems. Whatâs left is harder, slower, and sometimes impossible â no matter how much money we throw at it. đ§”
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SitÀ aina nöyrtyy kun pÀÀsee nÀin kovan asiantuntijan kanssa jauhamaan energiasta. KIITOS @LumijarviAleksi
Regeneranssin podcastin kahdeksannessa jaksossa meillÀ oli ilo saada vieraaksi eNordicin sijoitusjohtaja @LumijarviAleksi jonka kanssa ajauduimme monialaiseen keskusteluun energiasiirtymÀn tilasta, eri teknologioita ja puhtaan energian markkinoista.
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Vi snakker ikke sÄ godt norsk, men jeg antar at vi fortsatt kan komme overens med nordmenn.
Tuleeko Suomesta uusi Norja vedyn avulla? Osana 10 erikoista & hauskaa vÀitettÀ energiasta. Uusi Regeneranssi jakso kuunneltavissa nyt! https://t.co/3gBZvqksNG
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We had it. But we lost it. Lets get back to track?
Suomi on ollut kĂ€rkisijoilla @BloombergNEF vuosittaisessa akkuarvoketju vertailussa, mutta ei ole enÀÀ. 2021:6âŁ2022:4âŁ2023:5âŁ2024:5âŁ2025: 11 Syyksi sanotaan pysĂ€htyneisyys koboltin ja nikkelin osalta sekĂ€ hitaus erityiseti BASF- Harjavalta laitoksen lupaprosessissa. 1/4
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One part down. Many to go.
Lyten Acquires Europeâs Largest Battery Energy Storage Systems Manufacturing Operation from Northvolt - https://t.co/mcfvzQz2fT
@LimitingThe
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VÀhÀn aikaa sitten XssÀ puhuttiin tÀstÀ Suomen akatemian rahoituksesta: Nyt tuli vastaan Ylen juttu: https://t.co/m8BXx0No1r , josta kÀy ilmi, ettÀ nÀissÀ tapahtuu varmasti jotain hÀmÀrÀÀ. Höhö. Voi löytyÀ mielenkintoisia asioita tutkimuksessa.
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Regeneranssin 5. jaksoissa saimme Jonne Hirvosen @JonnHenrik vieraaksi, ja jatkoimme keskustelua CO2 hyödyntÀmisestÀ. Tiesitkö sitÀ, ettÀ Carbonaiden kÀsittelyprosessilla sementin tarve voi vÀhentyÀ jopa 20-50% betonituotteissa? Kiitos vierailusta Jonne! https://t.co/sqVPloDZby
open.spotify.com
Regeneranssi · Episode
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Itâs just a tiny piece of metal â but it holds everything together. Watch now: Discover the welding secrets powering our batteries today. #CATLManufacturing #BatteryTech #EVSafety #Welding
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