Green Collective
@greencollective.io
Daily updates on Irish electricity generation (previously: IrishEnergyBot on Twitter).
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Ireland just saw its all-time wind power record broken twice in the past 8 days 🥇🥈
Prior to December, we hadn't seen a new record for more than 18 months.
Unusual to see it broken over the weekend when demand is lowest and has already started to tail off before Christmas.
#SpeirGorm
Prior to December, we hadn't seen a new record for more than 18 months.
Unusual to see it broken over the weekend when demand is lowest and has already started to tail off before Christmas.
#SpeirGorm
December 25 is just about the only day when electricity demand in Ireland peaks around lunchtime rather than in the evening 🎄
When else can you expect this behaviour? Easter Sunday. We love our roasts! 🍗
Renewables supplied over half of this year's Christmas Day electricity 🔌
#SpeirGorm
When else can you expect this behaviour? Easter Sunday. We love our roasts! 🍗
Renewables supplied over half of this year's Christmas Day electricity 🔌
#SpeirGorm
December 26, 2025 at 3:20 PM
December 25 is just about the only day when electricity demand in Ireland peaks around lunchtime rather than in the evening 🎄
When else can you expect this behaviour? Easter Sunday. We love our roasts! 🍗
Renewables supplied over half of this year's Christmas Day electricity 🔌
#SpeirGorm
When else can you expect this behaviour? Easter Sunday. We love our roasts! 🍗
Renewables supplied over half of this year's Christmas Day electricity 🔌
#SpeirGorm
Renewable generation and discharging storage equalled 53% of yesterday's electricity demand, with a peak of 65% at 23:45. Fossil fuel generation (mostly gas) equalled 35% of demand. 0% of generation was exported, 14% of demand was met by imports.
December 26, 2025 at 9:21 AM
Renewable generation and discharging storage equalled 53% of yesterday's electricity demand, with a peak of 65% at 23:45. Fossil fuel generation (mostly gas) equalled 35% of demand. 0% of generation was exported, 14% of demand was met by imports.
Renewable generation and discharging storage equalled 41% of yesterday's electricity demand, with a peak of 54% at 22:45. Fossil fuel generation (mostly gas) equalled 47% of demand. 0% of generation was exported, 14% of demand was met by imports.
December 25, 2025 at 8:16 AM
Renewable generation and discharging storage equalled 41% of yesterday's electricity demand, with a peak of 54% at 22:45. Fossil fuel generation (mostly gas) equalled 47% of demand. 0% of generation was exported, 14% of demand was met by imports.
Thanks to the ongoing mess around unit-level data, we can only now confirm a new battery record last Friday, Dec 19: 430MW, or ~7% of demand at the time 🥇
Strong batteries the past few nights too which is good with the current low winds although still well below the ~1GW current total capacity.
Strong batteries the past few nights too which is good with the current low winds although still well below the ~1GW current total capacity.
December 24, 2025 at 10:33 AM
Thanks to the ongoing mess around unit-level data, we can only now confirm a new battery record last Friday, Dec 19: 430MW, or ~7% of demand at the time 🥇
Strong batteries the past few nights too which is good with the current low winds although still well below the ~1GW current total capacity.
Strong batteries the past few nights too which is good with the current low winds although still well below the ~1GW current total capacity.
Renewable generation and discharging storage equalled 21% of yesterday's electricity demand, with a peak of 31% at 18:15. Fossil fuel generation (mostly gas) equalled 54% of demand. 0% of generation was exported, 26% of demand was met by imports.
December 24, 2025 at 8:35 AM
Renewable generation and discharging storage equalled 21% of yesterday's electricity demand, with a peak of 31% at 18:15. Fossil fuel generation (mostly gas) equalled 54% of demand. 0% of generation was exported, 26% of demand was met by imports.
A little behind the scenes at the engineering department...
Keen readers may spot a few changes, e.g. the most recent solar record falls from 934MW -> 870MW owing to "spiky" real-time figures from EirGrid.
We'll flag that in future, but the story doesn't change -- and we're committed to accuracy 🎯
Keen readers may spot a few changes, e.g. the most recent solar record falls from 934MW -> 870MW owing to "spiky" real-time figures from EirGrid.
We'll flag that in future, but the story doesn't change -- and we're committed to accuracy 🎯
For the past few days, we've been trialling our new pipeline: perfect alignment of the most important EirGrid/SEMO feeds for *little* more accuracy, and more work pushed out to the database for a *lot* less operational load.
All going well, nobody will notice! 🤞
All going well, nobody will notice! 🤞
Renewable generation and discharging storage equalled 21% of yesterday's electricity demand, with a peak of 34% at 04:15. Fossil fuel generation (mostly gas) equalled 54% of demand. 0% of generation was exported, 26% of demand was met by imports.
December 23, 2025 at 11:14 AM
A little behind the scenes at the engineering department...
Keen readers may spot a few changes, e.g. the most recent solar record falls from 934MW -> 870MW owing to "spiky" real-time figures from EirGrid.
We'll flag that in future, but the story doesn't change -- and we're committed to accuracy 🎯
Keen readers may spot a few changes, e.g. the most recent solar record falls from 934MW -> 870MW owing to "spiky" real-time figures from EirGrid.
We'll flag that in future, but the story doesn't change -- and we're committed to accuracy 🎯
So, the latest here is...we don't really know what's going on 😜
Although we've updated our pipeline to use the new format for metered generation, the old format is *also* still being published...sometimes?
Anyway, our December newsletter will still arrive in all subscribers' inboxes on January 1 🥳
Although we've updated our pipeline to use the new format for metered generation, the old format is *also* still being published...sometimes?
Anyway, our December newsletter will still arrive in all subscribers' inboxes on January 1 🥳
Mystery solved: SEMO moved to a new format for metered data.
If any notice was given, we (long-time, heavy SEMO users and frequent filers of republishing and other requests) missed it; so far, nothing helpful from SEMO via email.
Well, we'll be updating our pipeline, so... 🙄
Stay tuned!
If any notice was given, we (long-time, heavy SEMO users and frequent filers of republishing and other requests) missed it; so far, nothing helpful from SEMO via email.
Well, we'll be updating our pipeline, so... 🙄
Stay tuned!
A new Irish wind record was set Friday morning 🥇
We've been planning to highlight the top wind farms, examine dispatch down, and compare with the previous record from way back in March 2024. However, SEMO hasn't published unit-level data since *last Wednesday* 😲
Not sure what's happening!
We've been planning to highlight the top wind farms, examine dispatch down, and compare with the previous record from way back in March 2024. However, SEMO hasn't published unit-level data since *last Wednesday* 😲
Not sure what's happening!
December 23, 2025 at 10:47 AM
So, the latest here is...we don't really know what's going on 😜
Although we've updated our pipeline to use the new format for metered generation, the old format is *also* still being published...sometimes?
Anyway, our December newsletter will still arrive in all subscribers' inboxes on January 1 🥳
Although we've updated our pipeline to use the new format for metered generation, the old format is *also* still being published...sometimes?
Anyway, our December newsletter will still arrive in all subscribers' inboxes on January 1 🥳
Renewable generation and discharging storage equalled 18% of yesterday's electricity demand, with a peak of 29% at 04:15. Fossil fuel generation (mostly gas) equalled 57% of demand. 0% of generation was exported, 26% of demand was met by imports.
December 23, 2025 at 7:37 AM
Renewable generation and discharging storage equalled 18% of yesterday's electricity demand, with a peak of 29% at 04:15. Fossil fuel generation (mostly gas) equalled 57% of demand. 0% of generation was exported, 26% of demand was met by imports.
Renewable generation and discharging storage equalled 21% of yesterday's electricity demand, with a peak of 34% at 04:15. Fossil fuel generation (mostly gas) equalled 54% of demand. 0% of generation was exported, 26% of demand was met by imports.
December 22, 2025 at 8:10 AM
Renewable generation and discharging storage equalled 21% of yesterday's electricity demand, with a peak of 34% at 04:15. Fossil fuel generation (mostly gas) equalled 54% of demand. 0% of generation was exported, 26% of demand was met by imports.
Renewable generation and discharging storage equalled 65% of yesterday's electricity demand, with a peak of 90% at 06:15. Fossil fuel generation (mostly gas) equalled 41% of demand. 8% of generation was exported, 3% of demand was met by imports.
December 21, 2025 at 8:58 AM
Renewable generation and discharging storage equalled 65% of yesterday's electricity demand, with a peak of 90% at 06:15. Fossil fuel generation (mostly gas) equalled 41% of demand. 8% of generation was exported, 3% of demand was met by imports.
Renewable generation and discharging storage equalled 62% of yesterday's electricity demand, with a peak of 86% at 06:15. Fossil fuel generation (mostly gas) equalled 28% of demand. 1% of generation was exported, 13% of demand was met by imports.
December 20, 2025 at 9:03 AM
Renewable generation and discharging storage equalled 62% of yesterday's electricity demand, with a peak of 86% at 06:15. Fossil fuel generation (mostly gas) equalled 28% of demand. 1% of generation was exported, 13% of demand was met by imports.
Reposted by Green Collective
L'Irlande est le co-leader mondial en part de production éolienne terrestre.
Pour tout savoir : @greencollective.io 💪
L'Irlande qui fonce sur le solaire : 2 000 MW déjà installés, dont la moitié en toiture. 👍
Qui innove : une installation PV gratuite pour les "personnes médicalement vulnérables".👏
Pour tout savoir : @greencollective.io 💪
L'Irlande qui fonce sur le solaire : 2 000 MW déjà installés, dont la moitié en toiture. 👍
Qui innove : une installation PV gratuite pour les "personnes médicalement vulnérables".👏
December 19, 2025 at 7:42 AM
L'Irlande est le co-leader mondial en part de production éolienne terrestre.
Pour tout savoir : @greencollective.io 💪
L'Irlande qui fonce sur le solaire : 2 000 MW déjà installés, dont la moitié en toiture. 👍
Qui innove : une installation PV gratuite pour les "personnes médicalement vulnérables".👏
Pour tout savoir : @greencollective.io 💪
L'Irlande qui fonce sur le solaire : 2 000 MW déjà installés, dont la moitié en toiture. 👍
Qui innove : une installation PV gratuite pour les "personnes médicalement vulnérables".👏
Renewable generation and discharging storage equalled 56% of yesterday's electricity demand, with a peak of 73% at 23:45. Fossil fuel generation (mostly gas) equalled 31% of demand. 0% of generation was exported, 14% of demand was met by imports.
December 19, 2025 at 7:57 AM
Renewable generation and discharging storage equalled 56% of yesterday's electricity demand, with a peak of 73% at 23:45. Fossil fuel generation (mostly gas) equalled 31% of demand. 0% of generation was exported, 14% of demand was met by imports.
Renewable generation and discharging storage equalled 64% of yesterday's electricity demand, with a peak of 92% at 05:15. Fossil fuel generation (mostly gas) equalled 32% of demand. 5% of generation was exported, 10% of demand was met by imports.
December 18, 2025 at 8:47 AM
Renewable generation and discharging storage equalled 64% of yesterday's electricity demand, with a peak of 92% at 05:15. Fossil fuel generation (mostly gas) equalled 32% of demand. 5% of generation was exported, 10% of demand was met by imports.
Renewable generation and discharging storage equalled 31% of yesterday's electricity demand, with a peak of 86% at 23:45. Fossil fuel generation (mostly gas) equalled 50% of demand. 1% of generation was exported, 20% of demand was met by imports.
December 17, 2025 at 8:09 AM
Renewable generation and discharging storage equalled 31% of yesterday's electricity demand, with a peak of 86% at 23:45. Fossil fuel generation (mostly gas) equalled 50% of demand. 1% of generation was exported, 20% of demand was met by imports.
Renewable generation and discharging storage equalled 16% of yesterday's electricity demand, with a peak of 27% at 03:30. Fossil fuel generation (mostly gas) equalled 59% of demand. 0% of generation was exported, 25% of demand was met by imports.
December 16, 2025 at 10:22 AM
Renewable generation and discharging storage equalled 16% of yesterday's electricity demand, with a peak of 27% at 03:30. Fossil fuel generation (mostly gas) equalled 59% of demand. 0% of generation was exported, 25% of demand was met by imports.
Resurfacing Saturday's wind record again, just for any folks who may have missed it over the weekend... ⏰
Ireland just saw its all-time wind power record broken twice in the past 8 days 🥇🥈
Prior to December, we hadn't seen a new record for more than 18 months.
Unusual to see it broken over the weekend when demand is lowest and has already started to tail off before Christmas.
#SpeirGorm
Prior to December, we hadn't seen a new record for more than 18 months.
Unusual to see it broken over the weekend when demand is lowest and has already started to tail off before Christmas.
#SpeirGorm
December 15, 2025 at 10:28 AM
Resurfacing Saturday's wind record again, just for any folks who may have missed it over the weekend... ⏰
Renewable generation and discharging storage equalled 72% of yesterday's electricity demand, with a peak of 87% at 03:45. Fossil fuel generation (mostly gas) equalled 28% of demand. 6% of generation was exported, 6% of demand was met by imports.
December 15, 2025 at 8:03 AM
Renewable generation and discharging storage equalled 72% of yesterday's electricity demand, with a peak of 87% at 03:45. Fossil fuel generation (mostly gas) equalled 28% of demand. 6% of generation was exported, 6% of demand was met by imports.
Reposted by Green Collective
Ireland just saw its all-time wind power record broken twice in the past 8 days 🥇🥈
Prior to December, we hadn't seen a new record for more than 18 months.
Unusual to see it broken over the weekend when demand is lowest and has already started to tail off before Christmas.
#SpeirGorm
Prior to December, we hadn't seen a new record for more than 18 months.
Unusual to see it broken over the weekend when demand is lowest and has already started to tail off before Christmas.
#SpeirGorm
December 14, 2025 at 2:52 PM
Ireland just saw its all-time wind power record broken twice in the past 8 days 🥇🥈
Prior to December, we hadn't seen a new record for more than 18 months.
Unusual to see it broken over the weekend when demand is lowest and has already started to tail off before Christmas.
#SpeirGorm
Prior to December, we hadn't seen a new record for more than 18 months.
Unusual to see it broken over the weekend when demand is lowest and has already started to tail off before Christmas.
#SpeirGorm
Ireland just saw its all-time wind power record broken twice in the past 8 days 🥇🥈
Prior to December, we hadn't seen a new record for more than 18 months.
Unusual to see it broken over the weekend when demand is lowest and has already started to tail off before Christmas.
#SpeirGorm
Prior to December, we hadn't seen a new record for more than 18 months.
Unusual to see it broken over the weekend when demand is lowest and has already started to tail off before Christmas.
#SpeirGorm
December 14, 2025 at 2:52 PM
Ireland just saw its all-time wind power record broken twice in the past 8 days 🥇🥈
Prior to December, we hadn't seen a new record for more than 18 months.
Unusual to see it broken over the weekend when demand is lowest and has already started to tail off before Christmas.
#SpeirGorm
Prior to December, we hadn't seen a new record for more than 18 months.
Unusual to see it broken over the weekend when demand is lowest and has already started to tail off before Christmas.
#SpeirGorm
Reposted by Green Collective
Good. But not enough. There have been no new wind farms in windy West Cork for years. We could be exporting electricity to France and the UK, and making a profit.
🚨 At 5pm yesterday, wind power on the island of Ireland reached a new all-time high: 4675MW, or more than 75% of electricity demand at the time.
This breaks the previous record of 4671MW set just last week 😮
This breaks the previous record of 4671MW set just last week 😮
December 14, 2025 at 11:21 AM
Good. But not enough. There have been no new wind farms in windy West Cork for years. We could be exporting electricity to France and the UK, and making a profit.
Reposted by Green Collective
Reposted by Green Collective
This is amazing!
Renewable generation and discharging storage equalled 76% of yesterday's electricity demand, with a peak of 86% at 21:45. Fossil fuel generation (mostly gas) equalled 27% of demand. 5% of generation was exported, 2% of demand was met by imports.
December 14, 2025 at 9:45 AM
This is amazing!
🚨 At 5pm yesterday, wind power on the island of Ireland reached a new all-time high: 4675MW, or more than 75% of electricity demand at the time.
This breaks the previous record of 4671MW set just last week 😮
This breaks the previous record of 4671MW set just last week 😮
December 14, 2025 at 10:26 AM
🚨 At 5pm yesterday, wind power on the island of Ireland reached a new all-time high: 4675MW, or more than 75% of electricity demand at the time.
This breaks the previous record of 4671MW set just last week 😮
This breaks the previous record of 4671MW set just last week 😮
Renewable generation and discharging storage equalled 76% of yesterday's electricity demand, with a peak of 86% at 21:45. Fossil fuel generation (mostly gas) equalled 27% of demand. 5% of generation was exported, 2% of demand was met by imports.
December 14, 2025 at 8:16 AM
Renewable generation and discharging storage equalled 76% of yesterday's electricity demand, with a peak of 86% at 21:45. Fossil fuel generation (mostly gas) equalled 27% of demand. 5% of generation was exported, 2% of demand was met by imports.