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Ciarán Mac Domhnaill

@ciaranmacdomhnaill.bsky.social
114 followers 319 following 11 posts

Empirical economist working in energy, sustainable transport and the environment | Postdoctoral Researcher, UCD Economics and NexSys

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Ciarán Mac Domhnaill @ciaranmacdomhnaill.bsky.social · 20/10/2025
⚡️🔌 Dynamic electricity pricing will be offered to customers in 🇮🇪 from next year, but how can we make this upcoming change work? Check out my op-ed in 📰 The Irish Sun: www.thesun.ie/news/1598292... #DynamicPricing #Electricity #Energy #EnergyTransition #Ireland #Economics #Climate
thesun.ie
Electricity dynamic pricing could help cut your bills - don't let it slide away
DYNAMIC pricing has long had a bad reputation as it’s a way for companies to charge more when demand is high. Also known as surge pricing, the scramble for Oasis Croke Park tickets, left, sparked a…
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Ciarán Mac Domhnaill @ciaranmacdomhnaill.bsky.social · 14/10/2025
⚡️Dynamic electricity pricing is coming to Ireland 🇮🇪 But how can we make it effective and fair? Our NexSys Policy Paper looks at the potential benefits and the policy actions needed to make it work. 📘 Read here: publicpolicy.ie/environment/... #DynamicPricing #Electricity #EnergyTransition
publicpolicy.ie
Public Policy
Public Policy @ UCD Geary
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Reposted by Ciarán Mac Domhnaill
Our World in Data @ourworldindata.org · 01/10/2025
France opened a flurry of nuclear power plants in the 1980s and 1990s, giving it low-carbon electricity ever since—
The image displays a line graph illustrating the growth of nuclear electricity generation in France from 1970 to 2024, measured in terawatt-hours (TWh). The vertical axis, ranging from 0 to 500 TWh, indicates the amount of electricity generated, while the horizontal axis represents the years. 

Starting from near zero in 1970, the curve rises steeply, particularly in the 1980s, reflecting the rapid expansion of nuclear power. Key annotations highlight that the first commercial reactor was opened in 1964, and by 1980, nuclear generation was at 60 TWh. By 1990, this figure exceeded 300 TWh. 

The graph shows a general upward trend until 1999, with no new plants added until the anticipated opening of the Flamanville plant in 2024. After peaking, the curve indicates a decline in generation towards the end of the period shown. 

The data source is the Energy Institute and the Statistical Review of World Energy, published in 2025. The image is credited under the Creative Commons BY license.
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Economics Observatory @econ-observatory.bsky.social · 22/09/2025
👚 Clothing sales doubled between 2000 and 2015, while utilisation – the number of times we wear an item before discarding it – fell. This #LondonFashionWeek has seen the return of fast fashion giant H&M. 🔎 Read Elaine Ritch on the true costs of fast fashion buff.ly/16GlEkC 👈
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Reposted by Ciarán Mac Domhnaill
Economics Observatory @econ-observatory.bsky.social · 11/08/2025
⚡️Is the UK falling behind on renewable energy? In 2023, only 14.9% of UK energy consumption came from renewables. Today’s #ChartOfTheDay looks at how EU nations are faring in the renewables transition. While Scandinavian countries surge ahead, Belgium, Luxembourg and the UK lag behind.
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Ciarán Mac Domhnaill @ciaranmacdomhnaill.bsky.social · 29/07/2025
💡Check out our new policy paper that explores how Ireland could unlock the potential of peer-to-peer (P2P) electricity trading, empowering communities and households to directly exchange electricity #EnergyTransition #NexSys #P2PEnergy @ucdgearyinst.bsky.social publicpolicy.ie/environment/...
publicpolicy.ie
Towards Peer-to-Peer (P2P) Energy Trading: A Policy Pathway for Ireland’s Decentralised Energy Future - Public Policy
This brief proposes a phased roadmap to enable P2P energy trading in Ireland, examining the regulatory, technical, and community-based steps needed to support a more decentralised electricity system i...
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Reposted by Ciarán Mac Domhnaill
Our World in Data @ourworldindata.org · 18/07/2025
One-third of cars on the road in Norway are now electric
Chart showing the percentage of cars on the road in Norway (and several other countries) that are electric (includes both fully battery-electric and plug-in hybrids), from 2010 to 2024. In Norway one-third of cars are now electric, more than any other country. Data Source: International Energy Agency (2025). Chart CC BY Our World in Data
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Ciarán Mac Domhnaill @ciaranmacdomhnaill.bsky.social · 19/06/2025
⚡️👨‍🏫 Great to present on the Irish wholesale electricity market at the @eaere.bsky.social annual conference in Bergen today. Grateful for the engaged audience and insightful discussion! #EAERE2025 #EnergyEconomics
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Ciarán Mac Domhnaill @ciaranmacdomhnaill.bsky.social · 16/06/2025
🚢🇪🇺🇬🇧 My paper on the effects of Brexit on shipping has been published in the Oxford Bulletin of Economics and Statistics! I find a 21% drop in EU-UK Ro-Ro cargo volumes, and an 88% increase in Ireland-France volumes. Full paper at onlinelibrary.wiley.com/doi/10.1111/... #economics #Brexit #emissions
onlinelibrary.wiley.com
All at Sea? Externalities and Cargo Diversion in the Wake of Brexit
How does withdrawing from a free trade agreement affect maritime cargo volumes? Are there external effects on freight transport between third-party countries? Using Brexit as a case study, in a diffe...
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Climent Quintana-Domeque @climent.bsky.social · 14/06/2025
New #OpenAccess article in the Oxford Bulletin of Economics and Statistics: "All at Sea? Externalities and Cargo Diversion in the Wake of Brexit" (by @ciaranmacdomhnaill.bsky.social) onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
All at Sea? Externalities and Cargo Diversion in the Wake of Brexit
How does withdrawing from a free trade agreement affect maritime cargo volumes? Are there external effects on freight transport between third-party countries? Using Brexit as a case study, in a diffe....
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Reposted by Ciarán Mac Domhnaill
Oceana @oceana.bsky.social · 08/06/2025
READ: Saving the oceans can sometimes feel like an overwhelming task, but if we all pitch in, we can make a big difference. While there are countless ways you can make a difference, here are our top 10 ways you can help save the oceans 👉 oceana.ly/45JLS6p #WorldOceansDay
oceana.ly
10 Ways You Can Help Save The Oceans | Oceana
Oceans cover more than 70% of the planet and are home to important species and ecosystems. Learn about 10 ways you can help save the oceans!
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Reposted by Ciarán Mac Domhnaill
Our World in Data @ourworldindata.org · 04/06/2025
Progress can sometimes be slow, but with persistence it is possible. Take the case of leaded gasoline.
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Ciarán Mac Domhnaill @ciaranmacdomhnaill.bsky.social · 03/06/2025
Had a brilliant time speaking at Pint of Science in Dublin! 🍺🔬 Thanks to @pintofscienceie.bsky.social and to everyone who came out to explore Brexit, energy and transport emissions over a pint. Looking forward to more conversations like this! #Pint25 #Brexit #emissions #NexSys
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Ciarán Mac Domhnaill @ciaranmacdomhnaill.bsky.social · 16/05/2025
🍺🔬 I’m speaking at @pintofscienceie.bsky.social 2025! Join me on Monday 19 May for a look at how Brexit affected shipping routes and what this means for carbon emissions 🌎🚢 📍 The Storyteller, Dublin 🎟️ Free tickets: pintofscience.ie/event/greene... #pint25 @ucddublin.bsky.social
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International Energy Agency @iea.org · 14/04/2025
Data centres tend to cluster together, often around cities. This can lead to bottlenecks in local grids. They’re also growing in size. The largest data centre under construction will use 20X more electricity as a typical hyperscale data centre today 👉 iea.li/4j2r9P3
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Ciarán Mac Domhnaill @ciaranmacdomhnaill.bsky.social · 09/04/2025
Presented at #SES25 in Glasgow this week! My paper with Radek Stefanski explores the Environmental Kuznets Curve through the lens of structural transformation. Great conversations and insights on global energy transitions, thanks @scoteconsociety.bsky.social for having me!
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