Killian Daly

@energykillian.bsky.social

Power grid decarbonisation with focus on how carbon accounting, electricity markets, policy, PPAs and clean energy demand can drive grid decarb. CEO of NGO EnergyTag. Energy engineer and electro-intensive industry background. Irish born, Brussels based.

The benefits of building. This 12 GW power line could carry all Spanish solar generation to Finland. It was built in 3 years. Western democracies used to think and build big. If we don’t start again, prosperity will erode and perhaps democracy with it.

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The benefits of building. This 12 GW power line could carry all Spanish solar generation to Finland. It was built in 3 years. Western democracies used to think and build big. If we don’t start again, prosperity will erode and perhaps democracy with it.

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Renewables + storage is the perfect match. Without storage, renewables hit a grid integration ceiling. With storage, the benefits of cheap renewables is made available even when there is no wind or sun. China seems to get this, with rapid buildout of pumped hydro show here (and batteries).

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🔌💡 Google released a novel study on the lifecycle emissions of AI accelerator chips, showing a 3x improvement in the carbon-efficiency of AI workloads over two generations. We also report average market-based electricity emissions calculated on a 24/7 basis. More: cloud.google.com/blog/topics/...

TPUs improved carbon-efficiency of AI workloads by 3x | Google Cloud Blog

A new study finds that TPU hardware has seen a 3x improvement in the carbon-efficiency of AI workloads from TPU v4 to Trillium.

cloud.google.com

Trump demands to be the center of attention. It's hard not to see Trump 2.0 as the biggest energy story in the world. But China begs to differ: China built 277 GW of solar (877 GW total now!) & 80 GW of wind (521 GW total) in 2024. That, as Trump would say, is 'uge! electrek.co/2025/01/21/c... 🔌💡

China installed a record capacity of solar and wind in 2024 – in numbers

China saw monumental solar and wind growth in 2024, according to data released today by its National Energy Administration (NEA).

electrek.co

Battery storage has often been built on the back of grid service revenues. In relatively mature markets like the UK, these revenues are drying up fast. Batteries will become more reliant on unpredictable energy arbitrage. Other revenue streams will be key (e.g 24/7 PPAs) #energysky

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Very important point. I find a lot of unproductive discussions on wind and solar vs alternatives comes down to local variations like this. If you don't have dunkelflautes, or if you have enough transmission, you really can avoid the need for most (if not all) clean firm generation. 🔌💡

Rosemary Barnes@engwithrosie.bsky.social · 2y ago

Dunkelflaute - no wind, no sun for weeks - isn't an Australian problem. 42 years of weather data show widespread dips last hours or a day, never weeks. Winter monthly output has never been lower than 70% of average. Long duration energy storage... https://youtube.com/shorts/kiKCnACikpY?feature=share

The Biden administration has finalized rules for the IRA's lucrative — and contentious — clean hydrogen tax credits that hold fast on key climate safeguards, despite industry pushback. Will the Trump administration honor or undermine those safeguards? www.canarymedia.com/articles/hyd... #energysky

Biden’s clean hydrogen tax credits are officially decided — for now

The contentious rules for the Inflation Reduction Act’s hydrogen subsidies have been finalized. But Trump could weaken them — or rewrite the rules…

canarymedia.com

New NREL modelling of 61 scenarios of US power sector thru 2050 is out. Under a current policies mid case, solar and wind look set to dominate with nuclear and gas still very much in the mix and storage ramping significantly #energysky (1/n)

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Emily Grubert (@gruberte.bsky.social), Wilson Ricks (@wilsonar.bsky.social), and I wrote a short piece on the role of methane offsets in the final § 45V hydrogen production tax credit rules. tl;dr safeguards in the new rules will avoid the worst-case outcomes, but offsetting remains open for new H2

Methane Offsets in the Final Hydrogen Production Tax Credit Regulations - Kleinman Center for Energy Policy

Energy policy research from the University of Pennsylvania

kleinmanenergy.upenn.edu

This is huge: China's refined oil consumption peaked in 2023, says the research arm of the China National Petroleum Corporation (CNPC). Will decline 1.3% in 2024, despite ~4.8% GDP growth projected this year. Why? EVs! (Mostly) www.reuters.com/world/china/... 🔌💡 🔌🚗

China’s oil consumption peaked in 2023, CNPC says

China's refined oil consumption peaked in 2023 at 399 million metric tons (7.98 million barrels per day) and is expected to fall 1.3% to 394 million tons in 2024, CNPC Economics & Technology Research Institute said on Friday.

reuters.com

Germany and energy. Two pictures: 1) Germany, like most of the EU has energy prices that are too high, volatile and reliant on imported gas. This is dragging it's economy down. 2) Germany does not invest enough. As investing in clean electricity is the ONLY way out of the bind, it must do more.

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Ultimately the only way to make the transition a lock-in is to make fossil the expensive option. In the transport sector this is already the case in the world’s largest market and will become the case everywhere in the coming years. Producers who don’t go EV will die.

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Wilson’s work on new technologies and clean power procurement will shape policy (e.g clean h2) and global standards (e.g GHG protocol) for many years ahead. Zero lab make research directly relevant to real world problems like few pthers. Congrats @wilsonar.bsky.social and @jessedjenkins.com

Wilson Ricks@wilsonar.bsky.social · 2y ago

A bit late on the announcement, but I'm happy to say that I successfully defended my doctoral dissertation, "Hot Rocks and H2: Modeling the Role of Emerging Technologies in the Electricity Sector," last month!