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Bram Claeys

@bramclaeys.bsky.social

Renewables, efficiency & politics. Belgian dad riding a bike in the apocalypse. Senior on energy markets and grids at Regulatory Assistance Project.

2,803 Followers  |  883 Following  |  1,173 Posts  |  Joined: 12.10.2023
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Posts by Bram Claeys (@bramclaeys.bsky.social)

It costs just $33/MWh to transform daytime solar into dispatchable solar

It costs just $33/MWh to transform daytime solar into dispatchable solar

Huge since true.

"It costs just $33/MWh to transform daytime solar into dispatchable solar"

And no, that doesn't yet account for that storied Dunkelflaute. Then again, the typical gas LCOE doesn't account for Putin's whims or other geopolitical vagaries.

28.02.2026 22:32 β€” πŸ‘ 130    πŸ” 42    πŸ’¬ 6    πŸ“Œ 0

NOX only does heat pumps, right? Not EV chargers

28.02.2026 16:49 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I think it's the 8000 HH analysed. Not entirely clear indeed

25.02.2026 17:08 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Empower Flextime van ENGIE is Product van het Jaar: al 20.000 klanten verschuiven hun verbruik naar de super-daluren Slechts 8 maanden na de lancering stapten al 20.000 Belgische gezinnen over op het energiecontract Empower Flextime en werd dit door consumenten verkozen tot Product van het Jaar in de categorie energ...

Interesting results reported by Laborelec from demand response mobilised by Engie in its Flextime product with "super offpeak hours": 15% demand shift representing 8,5 GWh.
corporate.engie.be/nl/press/rel...

25.02.2026 15:26 β€” πŸ‘ 3    πŸ” 3    πŸ’¬ 2    πŸ“Œ 0
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Taxshift laat stroomfactuur dalen met 42 euro per jaar, die van gas wordt 78 euro duurder De cijfers voor de taxshift van elektriciteit naar gas liggen vast. Wie op gas verwarmt, zal meer betalen.

Meanwhile, in Belgium #2

Government decided on tax shift electricity (-11,4c€/kWh) to fossil gas (+ 4,38c€/kWh) and heating oil.
Combined with ETS2 and Flemish region tax shift, this supports electrification towards 2030.

www.standaard.be/economie/tax...

24.02.2026 08:08 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Doen VS en Rusland een onderonsje over grote gasterminal in Zeebrugge? De VS en Rusland die het op een akkoordje gooien over de levering van Amerikaans lng aan Europa via de haven van Zeebrugge. Het is een mogelijk scenario, nu de Europese Commissie besliste om vanaf begin 2027 de aanvoer van Russisch lngΒ naar Europa te verbieden.

Meanwhile, in Belgium #1

USA pushing to replace Russian LNG shippers in the Belgian LNG terminal of Zeebrugge with USA LNG exporters?
www.standaard.be/economie/doe...

24.02.2026 08:02 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

4 years ago today Russia launched its large scale invasion of Ukraine. πŸ”ŒπŸ’‘

24.02.2026 07:55 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0
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OKAY BIG ONE FOR YA

NEW report out today: I dig deep into how big tech has been muddling tech types and overstating evidence to claim "AI" will make global emissions drop like a stone....

Not only will it not, it seems to be verifiably doing the opposite!!

ketanjoshi.co/2026/02/17/b... + πŸ“Ό+🧡>

17.02.2026 06:48 β€” πŸ‘ 641    πŸ” 319    πŸ’¬ 15    πŸ“Œ 31
Picture of snowman with solar garden lights as arms

Picture of snowman with solar garden lights as arms

Solar light snow man

15.02.2026 18:29 β€” πŸ‘ 8    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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BREAKING: UK govt auction secures 4.9GW new solar at Β£65/MWh and 1.3GW new onshore wind at Β£72/MWh, 13% and 21% below the price cap respectively.

All due online by 2029.

10.02.2026 07:25 β€” πŸ‘ 271    πŸ” 92    πŸ’¬ 7    πŸ“Œ 20
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Welke toekomst ligt er nog voor onze industrie? β€˜We zullen ons moeilijke vragen moeten stellen’ In het Antwerpse NextGen-district moeten de bedrijven verrijzen die Europa groener, slimmer en minder afhankelijk moeten maken. Makkelijk wordt dat niet als intussen hele traditionele sectoren teloor ...

Leestip dit weekend.
www.tijd.be/ondernemen/z...

08.02.2026 08:01 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Always a wealth of information!

Alarming to see a step backwards in Spain, of all countries.

05.02.2026 19:13 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Wieken van oude windmolens krijgen tweede leven als geluidscherm langs de snelweg | VRT NWS: nieuws Altijd op de hoogte van het laatste nieuws uit binnen- en buitenland dankzij de betrouwbare en diepgaande berichtgeving van VRT NWS.

Cool. Discarded wind blades reused as sound barrier (pilot) πŸ”ŒπŸ’‘

www.vrt.be/vrtnws/nl/ki...

04.02.2026 19:45 β€” πŸ‘ 11    πŸ” 2    πŸ’¬ 0    πŸ“Œ 1
graph from Ember EU electricity review with battery pipelines in different countries

graph from Ember EU electricity review with battery pipelines in different countries

My favorite graph from the brand new EU Electricity Review by @ember-energy.org πŸ”ŒπŸ’‘

It shows new battery storage capacity is coming, especially to the countries that need it to integrate their solar and wind.

Good for consumers, and sign that market signals work.

ember-energy.org/latest-insig...

22.01.2026 09:43 β€” πŸ‘ 5    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0
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If you think gas power is cheap, meet Keadby 2, the last CCGT gas plant built in Great Britain

It opened in 2023, after 5yrs of development, at a cost of Β£350m

Owner SSE says it would now cost 3.5x to build the same plant (~Β£1.2bn)
1/6

20.01.2026 16:00 β€” πŸ‘ 49    πŸ” 20    πŸ’¬ 2    πŸ“Œ 2
Picture of ship on land next to ship lift of Ittre. Blue sky. Shadow of man on ground.

Picture of ship on land next to ship lift of Ittre. Blue sky. Shadow of man on ground.

IJsvogel gespot. Een klein gelukje.

18.01.2026 13:48 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

that's less than 1 euro per Watt - not a bad price

15.01.2026 11:24 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
graph for week of 5 to 9 January 2026 in Belgium, with a red line showing CO2 intensity of grid power, and hourly CO2 emissions from heat pump in light grey and gas boiler in dark grey. Heat pumps is always less. Text box says heat pump saved 81 kg of CO2 emissions.

graph for week of 5 to 9 January 2026 in Belgium, with a red line showing CO2 intensity of grid power, and hourly CO2 emissions from heat pump in light grey and gas boiler in dark grey. Heat pumps is always less. Text box says heat pump saved 81 kg of CO2 emissions.

Does heat pump still save CO2 in a cold and snowy Belgian week, with record fossil gas power generation? Turns out it does. πŸ”ŒπŸ’‘

Anecdotal but real life data from our Vaillant air-to-water heat pump.

1/n

12.01.2026 08:30 β€” πŸ‘ 22    πŸ” 6    πŸ’¬ 1    πŸ“Œ 0

Yes indeed. I haven't set those smart controls up in our Home Assistant management system yet. When I have, we will change to a dynamic energy contract.

13.01.2026 17:38 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Lijkt me eerder een
- grondopslag (je moet er iets mee doen hé 😜),
- visuele buffer tussen industrie en Nationaal Park,
- toeristische attractie,

met ook een energieopslag toepassing.

Voor mij niet gelaten. Hangt er van af wie er voor de kost opdraait.

12.01.2026 20:23 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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WindEurope appoints Tinne Van der Straeten as new CEO WindEurope announces the appointment of Tinne Van der Straeten as its new Chief Executive Officer (CEO), effective as of 2 February 2026. Her appointment comes at a critical time for Europe’s energy s...

Press release @windeurope.bsky.social here: windeurope.org/news/windeur...

12.01.2026 09:53 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

It's a 1950 3 facade single family house, that we gave a deep energy renovation. So, roof, walls and floor all insulated up to standards, windows replaced.

12.01.2026 09:51 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Data for week of 5-9 January 2026 with freezing temps just South of Brussels and snow on the ground (and solar panels).
- @vaillantuk.bsky.social Arotherm+ air-to-water heat pump, mostly floor heating, bedrooms ventilos
- CO2 data from @electricitymaps.com
- Compiled in @home-assistant.io

5/5

12.01.2026 08:30 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 1

In all hours heat pump delivers CO2 savings. At end of the week wind picked up with storm Goretti passing - and temps also increased.

We have green power supply at home, but for this exercise I used general Belgian mix data. It's the hourly matching part of this exercise I find interesting.

4/n

12.01.2026 08:30 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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Gascentrales draaien op volle toeren door koude en wegvallende kerncentrales: hoogste dagverbruik in meer dan 10 jaar gemeten | VRT NWS: nieuws De gasgestookte elektriciteitscentrales hebben deze week overuren gedraaid. Maandag werd zelfs het hoogste dagverbruik van aardgas voor het opwekken van elektriciteit in meer dan 10 jaar geregistreerd...

Last week had "record daily gas generation" in Belgium, due to low renewable generation in most of the week, and only the last 2 remaining hashtag#nuclear reactors online. Begging the question if an electric heat pump still reduces CO2.

www.vrt.be/vrtnws/nl/20...
3/n

12.01.2026 08:30 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I matched hourly heating and domestic hot water production and corresponding electricity use, with hourly CO2 emission intensity from the Belgian grid. Then compared that to hourly CO2 emissions if the same heating energy would have been generated with a fossil gas condensing boiler.

2/n

12.01.2026 08:30 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
graph for week of 5 to 9 January 2026 in Belgium, with a red line showing CO2 intensity of grid power, and hourly CO2 emissions from heat pump in light grey and gas boiler in dark grey. Heat pumps is always less. Text box says heat pump saved 81 kg of CO2 emissions.

graph for week of 5 to 9 January 2026 in Belgium, with a red line showing CO2 intensity of grid power, and hourly CO2 emissions from heat pump in light grey and gas boiler in dark grey. Heat pumps is always less. Text box says heat pump saved 81 kg of CO2 emissions.

Does heat pump still save CO2 in a cold and snowy Belgian week, with record fossil gas power generation? Turns out it does. πŸ”ŒπŸ’‘

Anecdotal but real life data from our Vaillant air-to-water heat pump.

1/n

12.01.2026 08:30 β€” πŸ‘ 22    πŸ” 6    πŸ’¬ 1    πŸ“Œ 0
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Ex-minister voor Groen Tinne Van der Straeten verlaat Kamer en wordt CEO bij WindEurope | VRT NWS: nieuws Groen-kopstuk en voormalig minister van Energie Tinne Van der Straeten wordt de nieuwe CEO van WindEurope, de Europese sectororganisatie van de windenergie. Dat heeft de organisatie maandag bekendgema...

Rumors confirmed: Belgian ex-energy minister Tinne Van der Straeten becomes new CEO of Wind Europe, replacing Giles Dickson. πŸ”ŒπŸ’‘
@windeurope.bsky.social
www.vrt.be/vrtnws/nl/20...

12.01.2026 07:52 β€” πŸ‘ 9    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
net electricity generaiton in Belgium showing battery storage contribution

net electricity generaiton in Belgium showing battery storage contribution

net electricity generaiton in Belgium showing battery storage contribution compared to load

net electricity generaiton in Belgium showing battery storage contribution compared to load

net electricity generation in Europe showing battery storage consumption and generation

net electricity generation in Europe showing battery storage consumption and generation

Batteries showing up in the electricity wholesale market.

energy-charts.info/charts/power...

10.01.2026 09:56 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Foto van trein aan besneeuwd perron tegen bewolkte witte lucht

Foto van trein aan besneeuwd perron tegen bewolkte witte lucht

Op weg naar Antwerpen om het bij de VTM over energiecontracten te hebben. Met de trein geen probleem.

@sncb-nmbs.bsky.social
@vtmnieuws.be

07.01.2026 09:56 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0