Si Cy
@sicy.bsky.social
In aviation but incurably curious about renewable energy & clean tech. Blame the Physics degree
Reposted by Si Cy
NEW | It’s been 25 years since offshore wind first dropped anchor in Britain. The industry has seen some big changes from 2000 to 2025:
2 ➡️ 2,878 turbines
1 ➡️ 47 operational offshore wind farms
0 ➡️ 17% of 🇬🇧 electricity
https://ember-energy.org/latest-insights/25-years-of-british-offshore-wind
2 ➡️ 2,878 turbines
1 ➡️ 47 operational offshore wind farms
0 ➡️ 17% of 🇬🇧 electricity
https://ember-energy.org/latest-insights/25-years-of-british-offshore-wind
December 8, 2025 at 4:04 PM
NEW | It’s been 25 years since offshore wind first dropped anchor in Britain. The industry has seen some big changes from 2000 to 2025:
2 ➡️ 2,878 turbines
1 ➡️ 47 operational offshore wind farms
0 ➡️ 17% of 🇬🇧 electricity
https://ember-energy.org/latest-insights/25-years-of-british-offshore-wind
2 ➡️ 2,878 turbines
1 ➡️ 47 operational offshore wind farms
0 ➡️ 17% of 🇬🇧 electricity
https://ember-energy.org/latest-insights/25-years-of-british-offshore-wind
Reposted by Si Cy
Five years ago, I became an advisor to Alberta's Eavor Technologies, world leader in closed-loop geothermal technology. Last week their flagship project started delivering power to the German grid.
mliebreich.substack.com/p/big-news-c...
mliebreich.substack.com/p/big-news-c...
Big news - closed loop geothermal delivers first power!
Five years ago, I became an advisor to Alberta's Eavor Technologies, world leader in closed-loop geothermal technology. Last week their flagship project started delivering power to the German grid.
mliebreich.substack.com
December 7, 2025 at 3:15 PM
Five years ago, I became an advisor to Alberta's Eavor Technologies, world leader in closed-loop geothermal technology. Last week their flagship project started delivering power to the German grid.
mliebreich.substack.com/p/big-news-c...
mliebreich.substack.com/p/big-news-c...
Reposted by Si Cy
In nearly 5 decades from '70-'17 the LF was 67%.
But all the AGRs are well beyond their short design lives and so inevitably an increasing uphill struggle chasing issues to keep going. Until the core ends it.
But all the AGRs are well beyond their short design lives and so inevitably an increasing uphill struggle chasing issues to keep going. Until the core ends it.
December 7, 2025 at 12:51 PM
In nearly 5 decades from '70-'17 the LF was 67%.
But all the AGRs are well beyond their short design lives and so inevitably an increasing uphill struggle chasing issues to keep going. Until the core ends it.
But all the AGRs are well beyond their short design lives and so inevitably an increasing uphill struggle chasing issues to keep going. Until the core ends it.
Reposted by Si Cy
As of today, there are more electric cars than diesel cars in Norway.
Flere elbiler enn dieselbiler i Norge
3. desember er en merkedag i norsk bilhistorie: Nå er elbil den mest vanlige personbil-typen på veiene i Norge.
elbil.no
December 3, 2025 at 6:55 PM
As of today, there are more electric cars than diesel cars in Norway.
Reposted by Si Cy
Reposted by Si Cy
Seb Kennedy lays out the facts.
"Rising upstream costs combined with falling European gas hub prices will squeeze US LNG profit margins, with European buyers being set up as bag-holders".
"Rising upstream costs combined with falling European gas hub prices will squeeze US LNG profit margins, with European buyers being set up as bag-holders".
#lng #csddd | Seb Kennedy
𝐔𝐒 𝐋𝐍𝐆, 𝐛𝐥𝐚𝐜𝐤𝐦𝐚𝐢𝐥, 𝐯𝐚𝐧𝐢𝐬𝐡𝐢𝐧𝐠 𝐩𝐫𝐨𝐟𝐢𝐭𝐬 𝐚𝐧𝐝 𝐝𝐨𝐮𝐛𝐥𝐞-𝐬𝐩𝐞𝐚𝐤… the sixth meeting of the Partnership for Transatlantic Energy Cooperation (P-TEC) gets underway today! 🫠
Trump administration officials are desc...
www.linkedin.com
November 6, 2025 at 11:50 AM
Seb Kennedy lays out the facts.
"Rising upstream costs combined with falling European gas hub prices will squeeze US LNG profit margins, with European buyers being set up as bag-holders".
"Rising upstream costs combined with falling European gas hub prices will squeeze US LNG profit margins, with European buyers being set up as bag-holders".
Reposted by Si Cy
This is a structural change, with the amount of LNG coming, why would you pay an expensive or cumbersome storage tariff if you could manage a portfolio of more diversified LNG?
So we may start to see the massive EU gas storage network as a (partially) stranded asset.
bsky.app/profile/tomh...
So we may start to see the massive EU gas storage network as a (partially) stranded asset.
bsky.app/profile/tomh...
Longer term, the removal of Russian pipeline gas (light blue) is looking tiny vs the LNG volumes coming to market (yellow).
Of course mostly US *but* a big chunk of this is Qatari expansion, and they are less risk averse than the Americans, they like long term off take contracts, and guess what...
Of course mostly US *but* a big chunk of this is Qatari expansion, and they are less risk averse than the Americans, they like long term off take contracts, and guess what...
December 5, 2025 at 10:06 AM
This is a structural change, with the amount of LNG coming, why would you pay an expensive or cumbersome storage tariff if you could manage a portfolio of more diversified LNG?
So we may start to see the massive EU gas storage network as a (partially) stranded asset.
bsky.app/profile/tomh...
So we may start to see the massive EU gas storage network as a (partially) stranded asset.
bsky.app/profile/tomh...
This is such a great canter through a self-install of a heat pump. Obviously a lot of work even for someone who knows what they’re doing but very encouraging to see what you can do without having to completely rip your home apart
I've finally finished editing the video of my heat pump installation, there's now some cold weather monitoring data to talk about, TLDR It's working very well, 50% cost saving compared to gas 😃 youtu.be/Tz0W9xCBxS0
Installing a SCOP 5 Heat Pump in My House - Design, Install & Monitoring
YouTube video by Glyn Hudson
youtu.be
December 5, 2025 at 10:19 AM
This is such a great canter through a self-install of a heat pump. Obviously a lot of work even for someone who knows what they’re doing but very encouraging to see what you can do without having to completely rip your home apart
Reposted by Si Cy
Data from this system is live on
@openenergymon.bsky.social , it's currently averaged a COP of 5.4 for space heating and 4.33 for DHW using a @newarkcylinders.bsky.social Heat Geek Super Cylinder 📈 heatpumpmonitor.org/dashboard?id...
@openenergymon.bsky.social , it's currently averaged a COP of 5.4 for space heating and 4.33 for DHW using a @newarkcylinders.bsky.social Heat Geek Super Cylinder 📈 heatpumpmonitor.org/dashboard?id...
December 4, 2025 at 2:33 PM
Data from this system is live on
@openenergymon.bsky.social , it's currently averaged a COP of 5.4 for space heating and 4.33 for DHW using a @newarkcylinders.bsky.social Heat Geek Super Cylinder 📈 heatpumpmonitor.org/dashboard?id...
@openenergymon.bsky.social , it's currently averaged a COP of 5.4 for space heating and 4.33 for DHW using a @newarkcylinders.bsky.social Heat Geek Super Cylinder 📈 heatpumpmonitor.org/dashboard?id...
Bloody hell I’m getting sent stuff from Kathryn Porter from all over
www.facebook.com/share/v/1X32...
www.facebook.com/share/v/1X32...
Redirecting...
www.facebook.com
December 4, 2025 at 2:37 PM
Bloody hell I’m getting sent stuff from Kathryn Porter from all over
www.facebook.com/share/v/1X32...
www.facebook.com/share/v/1X32...
This from Kathryn Porter on inverter based gen:
“If thousands of units respond identically to a voltage dip, as most are programmed to do, the system’s real power output will collapse even as voltage recovers. The immediate consequence is a frequency drop…
“If thousands of units respond identically to a voltage dip, as most are programmed to do, the system’s real power output will collapse even as voltage recovers. The immediate consequence is a frequency drop…
December 4, 2025 at 11:28 AM
This from Kathryn Porter on inverter based gen:
“If thousands of units respond identically to a voltage dip, as most are programmed to do, the system’s real power output will collapse even as voltage recovers. The immediate consequence is a frequency drop…
“If thousands of units respond identically to a voltage dip, as most are programmed to do, the system’s real power output will collapse even as voltage recovers. The immediate consequence is a frequency drop…
Reposted by Si Cy
A lovely tribute to our good friend Quentin Willson by Dan Caesar.
www.patreon.com/posts/our-in...
www.patreon.com/posts/our-in...
Our inspiration… Quentin Willson | STOP Burning Stuff
Get more from STOP Burning Stuff on Patreon
www.patreon.com
December 3, 2025 at 9:33 PM
A lovely tribute to our good friend Quentin Willson by Dan Caesar.
www.patreon.com/posts/our-in...
www.patreon.com/posts/our-in...
Thread
Our annual deep dive on China’s climate transition is out! China’s CO₂ emissions are set to remain flat for a second year in 2025. Record additions of solar and wind, accelerating electrification, and declining construction-material demand are the main drivers.
December 4, 2025 at 8:41 AM
Thread
Reposted by Si Cy
Today we had two of our sail-equipped ships at sea… and both had over half their propulsion being provided by their sails!
These figures aren’t too common as we aim for 10-15% average across a year, but it demonstrates the potential when the conditions are right!
These figures aren’t too common as we aim for 10-15% average across a year, but it demonstrates the potential when the conditions are right!
December 3, 2025 at 7:59 PM
Today we had two of our sail-equipped ships at sea… and both had over half their propulsion being provided by their sails!
These figures aren’t too common as we aim for 10-15% average across a year, but it demonstrates the potential when the conditions are right!
These figures aren’t too common as we aim for 10-15% average across a year, but it demonstrates the potential when the conditions are right!
Reposted by Si Cy
Electric trucks are so cool. www.businessgreen.com/news/4522659...
Tarmac rolls out electric HGVs and charging network across London
Engineering giant is working with Renault and DAF to deploy five new zero emission HGVs, as demand for electric trucks continues to build
www.businessgreen.com
December 2, 2025 at 1:30 PM
Electric trucks are so cool. www.businessgreen.com/news/4522659...
Reposted by Si Cy
On the plus side, we should be celebrating the truly amazing success with reducing particle pollution over last twenty years, like 98% reduction!!
Think it shows that, for pollution that people are aware of, there is the will to do something!
Think it shows that, for pollution that people are aware of, there is the will to do something!
December 2, 2025 at 9:52 AM
On the plus side, we should be celebrating the truly amazing success with reducing particle pollution over last twenty years, like 98% reduction!!
Think it shows that, for pollution that people are aware of, there is the will to do something!
Think it shows that, for pollution that people are aware of, there is the will to do something!
Reposted by Si Cy
How it started / where it goes / how it ends up
December 1, 2025 at 12:20 PM
How it started / where it goes / how it ends up
I’ve had this shared with me from a sceptic colleague. Not many pros in this pros & cons piece. There’s a plausible level of truth in some of it, but the framing could not be more negative.
unpopular-truth.com/2025/07/25/p...
unpopular-truth.com/2025/07/25/p...
Pros and Cons of Utility-Scale Battery Storage – The Unpopular Truth
unpopular-truth.com
December 1, 2025 at 10:55 AM
I’ve had this shared with me from a sceptic colleague. Not many pros in this pros & cons piece. There’s a plausible level of truth in some of it, but the framing could not be more negative.
unpopular-truth.com/2025/07/25/p...
unpopular-truth.com/2025/07/25/p...
Reposted by Si Cy
Finally some fresh ideas in the talks about ending Russia's invasion of Ukraine.
November 28, 2025 at 9:59 PM
Finally some fresh ideas in the talks about ending Russia's invasion of Ukraine.
Reposted by Si Cy
Polish meme translated into English.
November 28, 2025 at 10:49 PM
Polish meme translated into English.
Reposted by Si Cy
Renault is set to launch its Dutch AC bidirectional charging package in collaboration with We Drive Solar and Hegg Energy in the first half of 2026. This will be the first commercialised V2G bundle in the Netherlands.
Renault Group en We Drive Solar introduceren allereerste V2G AC-laden service in Nederland - Renault Group
In Nederland beschikt meer dan 70% van de EV-rijders thuis over zonnepanelen*. Met het einde van de salderingsregeling (januari 2027) in het verschiet, groeit de interesse voor hergebruik van goedkope...
media.renault-group.nl
November 27, 2025 at 3:32 PM
Renault is set to launch its Dutch AC bidirectional charging package in collaboration with We Drive Solar and Hegg Energy in the first half of 2026. This will be the first commercialised V2G bundle in the Netherlands.
Reposted by Si Cy
The war will end when Russia stops fighting. Therefore, pressure has to be put on Russia, so that they stop believing that they will win. Why is that so hard to understand?
November 27, 2025 at 1:49 AM
The war will end when Russia stops fighting. Therefore, pressure has to be put on Russia, so that they stop believing that they will win. Why is that so hard to understand?
Reposted by Si Cy
Australia has one of the higher (80%+) uptakes. UK latest cohorts coming in the 70%s (was 90% in earlier years). US lower - 60s%.
As people age, we can expect divergence in cervical cancer rates to continue - a chance for elimination in Australia, vs still a significant cause of death for US women.
As people age, we can expect divergence in cervical cancer rates to continue - a chance for elimination in Australia, vs still a significant cause of death for US women.
November 26, 2025 at 1:46 PM
Australia has one of the higher (80%+) uptakes. UK latest cohorts coming in the 70%s (was 90% in earlier years). US lower - 60s%.
As people age, we can expect divergence in cervical cancer rates to continue - a chance for elimination in Australia, vs still a significant cause of death for US women.
As people age, we can expect divergence in cervical cancer rates to continue - a chance for elimination in Australia, vs still a significant cause of death for US women.
Reposted by Si Cy
Utterly surreal that a key part of the pre Budget narrative from the government hasn’t been ‘Russian planes keep buzzing the Essex coast, US support for NATO is looking shaky, and thanks to the Tories our army fits in Old Trafford - that’s why we need to raise taxes’.
November 26, 2025 at 8:00 AM
Utterly surreal that a key part of the pre Budget narrative from the government hasn’t been ‘Russian planes keep buzzing the Essex coast, US support for NATO is looking shaky, and thanks to the Tories our army fits in Old Trafford - that’s why we need to raise taxes’.
Reposted by Si Cy
Great map of European soil -- so many different things to pick up on.
November 25, 2025 at 10:15 AM
Great map of European soil -- so many different things to pick up on.