Professor of #energy #efficiency @UniLUT | Head of the Department of #Electrical Engineering | #electricity #solar #wind #hydrogen #PtXhttps://bsky.app/profile/jeroahola.bsky.socialhttps://bsky.app/profile/jeroahola.bsky.social/post/3lvrzjryvus2n100,000 residential batteries in #California tested as one distributed power plant. #battery https://www.ess-news.com/2025/08/06/100000-residential-batteries-in-california-tested-as-one-distributed-power-plant/07 Aug 2025 05:38 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lvrzjryvus2nhttps://bsky.app/profile/jeroahola.bsky.social/post/3lvpeoeezjc2zNon-stop #solar #innovation despite module oversupply https://www.pv-magazine.com/2025/08/01/non-stop-solar-innovation-despite-module-oversupply/06 Aug 2025 04:20 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lvpeoeezjc2zhttps://bsky.app/profile/jeroahola.bsky.social/post/3lvhw6lqhps2oThe #Hydrogen Stream: Trina sends first containerized hydrogen unit to Europe https://www.pv-magazine.com/2025/08/01/the-hydrogen-stream-trina-sends-its-first-containerized-hydrogen-production-system-to-europe/03 Aug 2025 05:12 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lvhw6lqhps2ohttps://bsky.app/profile/jeroahola.bsky.social/post/3lvagoroass26Peak Energy launches first U.S. #grid-scale #sodium-ion storage system. #battery https://www.ess-news.com/2025/07/30/peak-energy-launches-first-u-s-grid-scale-sodium-ion-storage-system/31 Jul 2025 05:46 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lvagoroass26https://bsky.app/profile/jeroahola.bsky.social/post/3lv635d7hf22vTyökoneiden #sähköistäminen #työkoneissa tai jopa metsätöissä ratkeaa esimerkiksi vaihtoakuilla tai tällaisilla konttiin laitetuilla akustoilla. Täysin sähköisten koneiden energiankulutus on murto-osa verrattuna diesel-hydraulisiin. #akku https://insideevs.com/news/767276/man-smart-charge-cube-powercube-ev-charger/30 Jul 2025 07:14 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lv635d7hf22vhttps://bsky.app/profile/jeroahola.bsky.social/post/3luotmekixc2sHome #storage grows across Europe in first half of 2025 #battery https://www.pv-magazine.com/2025/07/23/home-storage-grows-across-europe-in-first-half-of-2025/24 Jul 2025 05:49 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3luotmekixc2shttps://bsky.app/profile/jeroahola.bsky.social/post/3lumrta53w22qGlobal average #solar LCOE stood at $0.043/kWh in 2024, says IRENA https://www.pv-magazine.com/2025/07/23/global-average-solar-lcoe-stood-at-0-043-kwh-in-2024-says-irena/23 Jul 2025 10:12 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lumrta53w22qhttps://bsky.app/profile/jeroahola.bsky.social/post/3lujpe4q6s226#China switches on its largest standalone #battery storage project https://www.pv-magazine.com/2025/07/21/china-switches-on-its-largest-standalone-battery-storage-project/22 Jul 2025 04:50 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lujpe4q6s226https://bsky.app/profile/jeroahola.bsky.social/post/3luc7l3e5e22e#German #battery storage reaches 22.1 GWh at halfway point of 2025" at https://www.ess-news.com/2025/07/18/german-battery-storage-reaches-22-1-gwh-at-halfway-point-of-2025/19 Jul 2025 05:19 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3luc7l3e5e22ehttps://bsky.app/profile/jeroahola.bsky.social/post/3luc7hl2zuc2e#Spain launches call for access to 3.68 GW of #grid capacity https://www.pv-magazine.com/2025/07/18/spain-launches-call-for-access-to-3-68-gw-of-grid-capacity/19 Jul 2025 05:17 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3luc7hl2zuc2ehttps://bsky.app/profile/jeroahola.bsky.social/post/3lu7nc3kiwc2g“Grid-forming technology is no longer experimental – it’s here and working”" #grid #battery https://www.ess-news.com/2025/07/07/grid-forming-technology-is-no-longer-experimental-its-here-and-working/18 Jul 2025 04:46 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lu7nc3kiwc2ghttps://bsky.app/profile/jeroahola.bsky.social/post/3ltvnp7oask26Enervis Battery Storage Index: Revenues reach record level in May 2025 #battery #grid https://www.ess-news.com/2025/06/26/enervis-battery-storage-index-revenues-reach-record-level-in-may-2025/14 Jul 2025 05:27 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3ltvnp7oask26https://bsky.app/profile/jeroahola.bsky.social/post/3lttbmvydcs2u#Solar becomes #EU’s largest power source in June https://www.pv-magazine.com/2025/07/11/solar-becomes-eus-largest-power-source-in-june/13 Jul 2025 06:46 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lttbmvydcs2uhttps://bsky.app/profile/jeroahola.bsky.social/post/3lt23tblwi22s#Spain approves legislation to encourage #energy storage and flexibility" at https://www.ess-news.com/2025/06/25/spain-approves-legislation-energy-storage-flexibility-electrification-royal-decree-law-7-2025/03 Jul 2025 06:25 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lt23tblwi22shttps://bsky.app/profile/jeroahola.bsky.social/post/3lswb3wzzhc2q#UK rejects CfD bid for 10.5 GW Morocco solar-wind subsea #cable https://www.pv-magazine.com/2025/07/01/uk-rejects-cfd-bid-for-10-5-gw-morocco-solar-wind-subsea-cable/01 Jul 2025 17:49 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lswb3wzzhc2qhttps://bsky.app/profile/jeroahola.bsky.social/post/3lsnaq6sg6k2w#Germany to introduce new product standard for plug-in #solar devices https://www.pv-magazine.com/2025/06/27/germany-to-introduce-new-product-standard-for-plug-in-solar-devices/28 Jun 2025 03:48 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lsnaq6sg6k2whttps://bsky.app/profile/jeroahola.bsky.social/post/3lsisouptek2hIn a world of low-cost batteries, performance matters #battery https://www.ess-news.com/2025/06/20/in-a-world-of-low-cost-batteries-performance-matters/26 Jun 2025 09:26 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lsisouptek2hhttps://bsky.app/profile/jeroahola.bsky.social/post/3lrp6zwo2j22gHere is our news about simultaneous #optimization of component dimensioning and system control of green #hydrogen production plant. This approach is essential to achieve low cost hydrogen. #electrolysis https://www.pv-magazine.com/2025/06/11/simultaneous-optimization-of-plant-design-and-control-unlocks-cost-competitive-green-hydrogen/16 Jun 2025 04:58 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lrp6zwo2j22ghttps://bsky.app/profile/jeroahola.bsky.social/post/3lrp6shhj722g#Arctic #sea #ice volume is shrinking. Interesting to see where will be the minimum in mid September. #climate16 Jun 2025 04:54 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lrp6shhj722ghttps://bsky.app/profile/jeroahola.bsky.social/post/3lrp6i566h22gMitsubishi debuts #EV #battery #swap network for cars AND trucks in Tokyo https://electrek.co/2025/06/14/mitsubishi-debuts-ev-battery-swap-network-for-cars-and-trucks-in-tokyo/16 Jun 2025 04:48 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lrp6i566h22ghttps://bsky.app/profile/jeroahola.bsky.social/post/3lqyrnmyrzc2u#Kaliforniassa purettiin akuista piikkitehona yli 10 GW #sähköverkkoon. #akku #aurinkosähkö https://www.ess-news.com/2025/05/28/californian-batteries-set-new-output-record/07 Jun 2025 07:00 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lqyrnmyrzc2uhttps://bsky.app/profile/jeroahola.bsky.social/post/3lqohz7yw5c2pEnervis #Battery Storage Index: Revenue growth continues in April" https://www.ess-news.com/2025/06/02/enervis-battery-storage-index-revenue-growth-continues-in-april/03 Jun 2025 04:41 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lqohz7yw5c2phttps://bsky.app/profile/jeroahola.bsky.social/post/3lqohpmuxys2pGCL achieves 29.51% efficiency for perovskite-silicon tandem #solar module https://www.pv-magazine.com/2025/06/02/gcl-achieves-29-51-efficiency-for-perovskite-silicon-tandem-module/03 Jun 2025 04:36 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lqohpmuxys2phttps://bsky.app/profile/jeroahola.bsky.social/post/3lqlvkv2qos25The good news: Cheaper batteries mean cheaper EVs. The bad news: China's battery costs are still dropping faster than ours. #battery #ev https://insideevs.com/news/761338/ev-battery-costs-down-2024/02 Jun 2025 04:05 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lqlvkv2qos25https://bsky.app/profile/jeroahola.bsky.social/post/3lqjjaxrtqk2yUnpacking the rationale behind low bids in the #EU green #hydrogen tender https://www.pv-magazine.com/2025/05/30/unpacking-the-rationale-behind-low-bids-in-the-eu-green-hydrogen-tender/01 Jun 2025 05:20 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lqjjaxrtqk2yhttps://bsky.app/profile/jeroahola.bsky.social/post/3lq4xug2ru22cU.S. defense research agency achieves #optical #power beaming record https://www.pv-magazine.com/2025/05/27/u-s-defense-research-agency-achieves-optical-power-beaming-record/27 May 2025 05:37 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lq4xug2ru22chttps://bsky.app/profile/jeroahola.bsky.social/post/3lpy3edf7zc2rSystem integration issues dominate BESS manufacturing defects in 2024, CEA reveals" #reliability #battery https://www.ess-news.com/2025/05/23/system-integration-issues-dominate-bess-manufacturing-defects-in-2024-cea-reveals/25 May 2025 06:56 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lpy3edf7zc2rhttps://bsky.app/profile/jeroahola.bsky.social/post/3lpwho3dx5227Tänään olikin vuorossa #kuusentaimien istuttamista vanhalle pellolle. Saa nähdä, että miten iso osa taimista selviää ensimmäisen kesän mesiangervojen ja nokkosten seassa. #metsä24 May 2025 15:31 +0000at://did:plc:lusgew2y4j3fpn77i5r6jb7e/app.bsky.feed.post/3lpwho3dx5227