I don't think we've posted a map of *all* generation before, i.e. one including fossil fuels. I made this one offset some markers slightly so that none overlap -- I think it highlights the wind/solar/gas regions pretty well? 🧪

Green Collective@greencollective.io · 2w ago

How Ireland met electricity demand during August: 🔹 26.7% renewables: 18.2% wind 💨, 6.8% solar ☀️, 1.7% biomass 🪵, 0.1% hydro 💧 🔹 49.2% fossil fuels: 47.6% gas 🔥, 1.5% waste-to-energy 🔥, 0.1% oil 🛢️ 🔹 1.3% storage: 0.8% pumped hydro ⛰️, 0.5% batteries 🪫 🔌 22.5% imports (from our latest newsletter)

🚨 Irish solar generation dipped noticeably during the partial solar eclipse earlier this evening, bottoming out at just 8MW. Overlaying today's generation with yesterday's, we see a clear notch around 7pm when the eclipse was at its greatest 🌑 ⚡️ #SolarEclipse #SpeirGorm

Peak eclipse from Zürich’s Negrellisteg over train tracks during peak solar eclipse (love the tiny crescent in lens flare reflecting the status of the eclipse 🌙)

Ireland is developing a duck curve.

Green Collective@greencollective.io · last mo.

Renewable generation and discharging storage equalled 34% of yesterday's electricity demand, with a peak of 54% at 11:45. Fossil fuel generation (mostly gas) equalled 48% of demand. 0% of generation was exported, 18% of demand was met by imports.

Time for a little round-up of our July reporting... 🧵 First, the basics: how much of electricity demand each source (wind, solar, gas, etc.) meet? 🍃 ☀️ 🌊 🗻 🔋 🏭️ 🔥 bsky.app/profile/gree...

Green Collective@greencollective.io · last mo.

How July's electricity demand was met on the island of Ireland: 🌱 32.2% Renewables • Wind: 23.2% 💨 • Solar: 8.4% ☀️ • Biomass: 0.4% | Hydro: 0.2% 🔥 46.5% Fossil Fuels • Gas: 46% ⛽️ • Waste: 0.3% | Oil: 0.1% 🔋 1.4% Storage (0.9% Pumped Hydro, 0.5% Battery) ⚡️➡️ 19.8% Net Imports

Solar completely upended our county rankings in July to make Galway #1 and Meath #2 renewable energy producers for the first time ☀️ With Offaly at #4, our map below highlights an emerging green corridor of renewable production stretching from the east to west coasts 📍

This is an excerpt from our most recent newsletter. If you like these kinds of updates about Irish electricity, we send "Irish Grid Monthly" to our subscribers on the 1st of each month 📬 Sign up here: currents.greencollective.io#/portal/signup

Currents by Green Collective

A newsletter from Green Collective with monthly and ad-hoc reporting on renewables and the Irish electricity grid.

currents.greencollective.io

No need to wait weeks and weeks -- whether hail, rain, sleet or snow, Swiss National Day or even *a new flipping baby in the house* @greencollective.io newsletter subscribers get their news on the first of each and every month 😆

Green Collective@greencollective.io · 2mo ago

So far this year, the grid's having its greenest summer in recent memory. How well did we do in July? In the next edition of "Irish Grid Monthly" we'll be covering: ⚡️ datacentre demand ⚡️ carbon emissions ⚡️ curtailment and transmission constraints Sign up today to receive your copy!

Thanks to solar it absolutely can. The evenings may require batteries, but even without them, cooling until the sun goes down will save a great deal of suffering. (My solar house is cheerfully producing three times as much electricity as the aircon is using).

Channel 4 News@channel4news.bsky.social · 3mo ago

UK cannot ‘air con its way’ out of this heatwave says Professor www.channel4.com/news/uk-cann...

The marble lions guarding the entrance—designed by Edward Clark Potter and sculpted by the Piccirilli Brothers—made it possible for people to “read between the lions.” Originally named Leo Astor and Leo Lenox, the lions were nicknamed Patience and Fortitude by Mayor Fiorello La Guardia. (3/5)

This unit-level analysis of dispatch down was my work focus towards the end of the pre-baby times and...it is just incredibly satisfying to see the near-perfect bell curves produced by stacking metered generation, curtailment, and constraints 🎯

Green Collective@greencollective.io · 4mo ago

Ireland saw exceptionally strong solar generation over the weekend as a heat dome descended over Europe. The charts below illustrate not-insignificant dispatch down, with transmission constraints dominating in Northern Ireland and significant curtailment in the east and south coasts.

April 29 was a beautiful all over Ireland, but how did the grid do? Solar farms produced 9.2GWh — meeting 8.5% of the island's demand. However, strong winds and high imports led to grid bottlenecks and ~18% was lost to curtailment. In Antrim, this reached as high as 40%. Side-by-side below 📊 🔎

Achievement unlocked: carted the first-born home entirely by public transport 👶 🚋 Only blip was an out-of-service elevator but it just needed a few minutes detour, during which a friendly SBB conductor on the platform wished me "Glückwunsch!". And this from the *least* connected Zürich hospital 🇨🇭

All of @greencollective.io's feeds include UTC and IST timestamps on every record, just to be sure to be sure. Johnston's Paradox: Being just one hour off UTC -- and for only half the year -- might actually be one of the most tricky/dangerous time zones to work with.

Good news! The final ENTSO-E report into the Spain blackout is out A complex stew of different factors, but "too much solar" is simply not even among them, let alone a major component. As always: the narrative built by fossil/nuke advocates was wrong www.entsoe.eu/news/2026/03...

A little more on this, now we have the full 24 hours of data: bsky.app/profile/did:...

Green Collective@greencollective.io · 6mo ago

A closer look at Friday, which saw an unprecedented *two* major records broken on the Irish grid in a single day: battery discharge and solar output. Batteries met roughly 4.5% of the morning peak load, while solar met almost 7% of the entire day's demand 🔋 ☀️

🚨 A historic double-header for the Irish grid today with two major records broken: - this morning, battery discharge reached almost 500MW, or roughly 8% of electricity demand 🔋 - just after 12pm, solar output exceeded 1GW (roughly 20% of demand) for the very first time ☀️ Much more to come!

🚨 Yesterday afternoon, wind power reached a new high on the island of Ireland: 4686MW, equal to 73.5% of electricity demand and 66.8% of total generation at the time. The previous record which stood for just over two years has now been broken twice already this winter 🥇

As long as we've been tracking it, either Cork or Kerry has always been the #1 renewables producer on the island of Ireland. That finally changed in January 2026 🥇 Find out which county it was and much, much more in January's "Irish Grid Monthly". Available now to all our newsletter subscribers!

Our 2025 review is now open to all 📊 How did the Irish grid improve over the past 12 months, and where can it do better? We dived into the generation, demand, availability, and pricing data to identify 10 key indicators to watch in 2026 🔍 www.greencollective.io/post/annual-...

A Year in Review: The Irish Grid in 2025

greencollective.io

My own version of feeling the shift is when I saw the jeweler who made our wedding rings posted an anti-ICE note to his IG grid this weekend. Folks who have been completely apolitical online are making their feelings clear and public. Also this feels different from those black boxes in 2020...

Lordbeef@lordbeef.bsky.social · 8mo ago

looking at reddit.com/r/all right now is wild. 80% of the posts are anti ice from every kind of subreddit like NBA, climbing, nursing, batman, catbongos and music

We've spent the New Year selecting 10 takeaways that best represent the key changes and trends affecting the Irish electricity grid in 2025. Key takeaways 1-3: flatlining renewables to demand ratio, increasing imports via interconnectors, and wind dispatch down. (1/3)

oh no instantly felt the horrible flashback to the whole “bitcoin is a battery” thing a few years ago

Ketan Joshi@ketanjoshi.co · 8mo ago

Data centres that briefly wind down during grid stress are shaving a small slice off a net harm, they are not 'supporting the transition' In the same way CCS *might* slightly reduce emissions, but overall end up facilitating new fossil fuel use.... www.sciencedirect.com/science/arti...

Why revamp the county rankings? Treating wind and solar separately, things just don't vary that much month-to-month -- new plants being few and far between. However, renewables as a *whole* varies a lot throughout the year, e.g. solar in summer and hydro in winter. Should be much more interesting!

Green Collective@greencollective.io · 8mo ago

The final "Irish Grid Monthly" of 2025 is now available on our website. Just a few of the topics covered: - new wind *and* battery records 🍃 🔋 - low solar generation ☀️ - we've revamped our county rankings 🥇 - ongoing issues with unit-level generation data ⚙️ www.greencollective.io/post/monthly...

These Static Mittens (pattern by Rows Knitwear/Alice Hoyle) are easily among my top 3 knits this year. The fact that the pattern name is electricity adjacent makes them extra special 🧶⚡️

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

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 🥳

Green Collective@greencollective.io · 9mo ago

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!

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! 🤞

Green Collective@greencollective.io · 9mo ago

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.

If you're looking for a gift, what about a Dublin Inquirer subscription? For the curious, the involved, the engaged, the newcomer, the old-timer – for anyone you think would want to read about the city.

Gift a journalism subscription this Christmas

For the curious, the involved, the engaged, the newcomer, the old-timer – for anyone you think would want to read about the city.

dublininquirer.com

🚨Our dashboard caught a new all-island wind output record this morning: 4671MW at 9:30am on Friday, 5 December!🚨 www.greencollective.io/records