Katy King @katyking2.bsky.social Deputy Director, A Sustainable Future
@nestauk.bsky.social ex @bitglobal.bsky.social
Posts in a personal capacity about behavioural science & household decarbonisation.
Chris Baraniuk @chrisbaraniuk.com Freelance science & technology journalist. 12+ years experience. Irish/Polish. Writes for the BBC, Wired, The Guardian and others!
Portfolio: chrisbaraniuk.com
Newsletter: thereengineer.pro
Coaching: chrisbaraniuk.com/coaching
HQ: Belfast, N. Ireland
Annie Leymarie @annieleymarie.bsky.social Nature / Climate / More-than-humans / Degrowth / Social justice / Food, Farming and Land Use / Energy / Retrofits / Transport... with typos
London
Fionna O’Leary @fascinatorfun.bsky.social Retired Lawyer, cook, Europhile, books, music, good conversations, gardens, walking. Bird site refugee 🇬🇧 🇮🇪
@chrisdunham.bsky.social @chrisdunham.bsky.social 
Martina Kavan @martinakavan.bsky.social Thinking about heat pumps, energy and decarbonisation at @nestauk.bsky.social
Sam Alvis @samalvis.bsky.social South West native, currently co-lead economy & climate team @IPPR - (views mine)
Industrial strategy | Bazball | @BristolBears
Sarastro @financeguy.bsky.social Institutional money manager 🇬🇧🇨🇭🇫🇷
Markets, energy, history, politics- S @stockfttp.bsky.social @stockfttp.bsky.social Energy, Transition, Maritime & occasional Politics.
John Smillie @johnsmillie42.bsky.social Husband, father, dog owner, hiker, climate action advocate, amateur energy nerd, heat pump evangelist, audiobook enthusiast. Chalant, yet gruntled.
Antony @antonyrwalker.bsky.social Work in housing, interests in net zero
Need some green tech? My Octopus referral code:
https://tech.referrals.octopus.energy/uyp3jlMc
Chris Higgins @cahiggins.bsky.social Supporting Electric Load Growth. Building Policy. Helping homes & buildings improve, Heat Pumps, Passive House, CHBA Net Zero, & better building code.+ EV's, Civil Service, & a Safer City.
Stephen Jarvis @stephenjarvis.bsky.social Assistant Professor in Environmental Economics at LSE. Posting mostly about energy/enviro research. https://stephenjarvis.github.io/
Dr Matthew Aylott @renewablewriter.bsky.social Electrification of Heat Policy Lead in the Dept for Energy Security and Net Zero. Policy Fellow at University of Cambridge Centre for Science and Policy. Former Bioenergy Researcher. Spreading news & views on energy in a personal capacity.
Marianne Heaslip @marianneh.bsky.social Workingtonian in Liverpool(home)/Manchester(work), UK.
Working on tools and processes for better building retrofit, mostly in houses, mostly for coops and community energy orgs. Keen on the need to #stopburningstuff.
EssaysConcern @richarderskine.bsky.social Research fellow at The Schumacher Institute. Knowledge management specialist. Artist, Educator, Writer. Born 312.6 ppm
www.trustedknowledge.org
www.essaysconcerning.com
www.richarderskineart.com
Alan Clarke @alanclarke.bsky.social Energy & buildings engineer, Passivhaus, mountain biker, veg gardener/rewilder
EL COPO @el-copo.bsky.social Low carbon heating engineer.
Heatgeek.
Sustainability Installer of the Year 2024.
Yorkshire/Humber Installer of the Year 22/23/24.
Duncan Gibb @duncangibb.net clean heat, renewables, music, tennis
Senior Associate at @regassistproj.bsky.social
🇨🇦 raised 🇩🇪 then 🇨🇵 now
Energy Stats UK @energystatsuk.bsky.social Created by https://bsky.app/profile/zarch1972.bsky.social
Claim £50 of free Octopus Energy credit after signup: https://mickwall.octopus.energy
Looking for a Heat Pump Installer?
https://trustedheatpumpinstallers.co.uk/
Climate Change Committee @thecccuk.bsky.social The UK’s independent adviser on tackling climate change.
https://www.theccc.org.uk/
Timbones @timbones.bsky.social Software engineer, living and working near York, father of two.
Messes about with heat pump performance data "for fun".
Reposts are other people's opinions.
Andrew Cunningham @thesuburbanpirate.bsky.social 
Eoghan Daltun 🌍 @irishrainforest.bsky.social Author of award-winning bestseller An Irish Atlantic Rainforest. Over 17 years rewilding our 73-acre farm on the Beara Peninsula, West Cork. In love with Earth's biosphere.
Prof Tim Jackson @timjackson.org.uk Ecological Economist and Playwright. Author of »The Care Economy« (2025), »Post Growth« (2021) and »Prosperity Without Growth« (2009/2017). Director of @cusp.ac.uk.
🌐 https://timjackson.org.uk
Jess Ralston @jessralston.bsky.social Head of Energy at the Energy & Climate Intelligence Unit. Mainly power, homes & heating.
All views my own etc
Jez Climas @jezclimas.bsky.social Head of Business Development in Renewables at City Plumbing
Richard Lowes @richardlowes.bsky.social Energy policy obsessive on clean/decarb, mostly clean heating and gas. Surfer, dog lover, live in Cornwall. Work for Exeter Uni and the Regulatory Assistance Project. Fellow of the Energy Institute. Co-chair of Clean Heat Forum.
Glen Peters @glenpeters.bsky.social Energy, emissions, & climate
CICERO Center for International Climate Research, Oslo, Norway
https://cicero.oslo.no/en/employees/glen-peters
Carbon Brief @carbonbrief.org Award-winning journalism focused on #climatechange, science, energy and policy. Subscribe to our free newsletters: http://bit.ly/CBnewsletters or visit our website: https://www.carbonbrief.org/
Follow our journalists: https://go.bsky.app/6X95R1T
David Joffe @davidjoffe.bsky.social Expert adviser, Clean Power Unit, DESNZ. Visiting Prof @ CEP, Strathclyde. Ex: CCC Director of Net Zero. Opinions mine unless someone else’s. Joffe rhymes with coffee. #COYS
Andrew Simms @andrewsimms.bsky.social Political economist, campaigner & author. Co-author the original Green New Deal, devised Earth Overshoot Day & jointly, the Fossil Fuel Non Proliferation Treaty. Co-director New Weather Inst, other roles: https://www.newweather.org/about-us/andrew-simms/
Es Tresidder @estresidder.bsky.social High-energy mountain sports, low-energy building design. Runner, climber, ski-mountaineer, building physicist & Passivhaus designer. EV driver.
Currently finishing up my own EnerPHit house project. 
George Monbiot @georgemonbiot.bsky.social Ungainly on land
Prof Richard Betts @richardabetts.bsky.social Climate scientist, University of Exeter & Met Office. Expert Adviser to Adaptation Committee of the Climate Change Committee. Lead author IPCC AR4, AR5, AR6 & AR7. Live music lover, supporter of grassroots venues. Cycles a lot, rock climbs occasionally.
Philip Sargent @philipsargent.bsky.social Cambridge UK: materials, software, energy; and beer. Was engineer at DECC (then BEIS) nearly 4.5 years.
https://www.researchgate.net/profile/Philip-Sargent-2
@philipsargent@mastodon.energy- M Matt Stratford @mattstratford.bsky.social
Jan Rosenow @janrosenow.bsky.social Professor of Energy & Climate Policy at University of Oxford
Energy Programme Leader at ECI, University of Oxford
Senior Research Fellow at Oriel College, Oxford
Senior Associate Institute for Sustainability Leadership, University of Cambridge
Chris Stark @chrisstark.bsky.social Head of the UK’s Mission for Clean Power by 2030.
Former CEO of the UK’s Climate Change Committee. 
Simon Evans @drsimevans.carbonbrief.org Press Gazette energy & environment journalist of the year 2022
Highly commended:
Society of Editors 2025
Shortlisted:
Press Awards 2025
Press Gazette 2025
AOP 2025
Deputy Ed + Snr Policy Ed, Carbon Brief
simon.evans@carbonbrief.org
Prof Nick Cowern 🌍 @nickcowern.bsky.social We're beginning to see the true sensitivity of climate to greenhouse gases, and it's bigger than almost anyone expected. A huge challenge to us all to avoid runaway climate. Energy transition, justice, sustainable buildings / agriculture / horticulture.
Michael Liebreich @mliebreich.bsky.social Host @CleaningUpPod. CEO Liebreich Associates. Managing Partner Ecopragma Capital. Founder, Contributor @BloombergNEF. Ex Board TfL, Board of Trade. Olympian. Don't message me - I'm not prepared to give away personal data to prove my age. Srsly BlueSky!
Clem Cowton @clemcowton.bsky.social Director of External Affairs @OctopusEnergy Group || Board, EnergyUK || Board, Sussex University Energy Group || Founder, Friends of Queens Road Cemetery
Trystan Lea @trystanlea.bsky.social Monitoring heat pumps at HeatpumpMonitor.org, open source energy monitoring at OpenEnergyMonitor.org.
Jesse B @jesseb4me.bsky.social 🇳🇿Kiwi in 🇬🇧Luton, England
Now on land after life at sea
Putting sails back on ships is cool
Also plants 🌱
Trustee, Pride In Luton 🏳️🌈🏳️⚧️
@coppicejt.bsky.social @coppicejt.bsky.social 
Peter Miller @petereastern.bsky.social Technologist responding to climate emergency. Heat pump installer and founder of conga.uk. Computer scientist. 316ppm.
Chris Carus @chris-carus.bsky.social Domestic energy efficiency and heat pumps in Glasgow. Exec officer at Loco Home Retrofit CIC, Glasgow's community-led retrofit one stop shop - a hub for households and tradespeople. https://locohome.coop/
https://bsky.app/profile/locohome.bsky.social
Nicola Terry @nicola.qeng-ho.org Obsessed with heat pumps but anything to do with energy. Also water.
Auke Hoekstra @aukehoekstra.bsky.social Sharing hope and debunking FUD against electric vehicles and renewable energy. Director NEONresearch.nl @TUeindhoven Founder Zenmo.com.
Robert McQueen @ramcq.net Cambridge-based husband, father, free software & green energy geek, digital rights & equity advocate, open source technologist, CEO of Endless Access, Vice President of GNOME
Nathan Gambling @betatalk.bsky.social "Nathan is one of the UK's clean heat leaders" Chris Stark
I help people understand heat & heating industry. My family have been installing heat pump technology for nearly half a century. I run the Guild of Master Heat Engineers
BetaTeach.co.uk
Kate de Selincourt @katedes.bsky.social Writer - sustainable building and the environment
Andrew Sissons @acjsissons.bsky.social Day job: climate change, heat pumps, energy at Nesta
Other stuff: low-fi economics on growth, cities & economic geography, general UK policy, occasional basic charts
Bristol, he/him, lots of parenting / caring.
Personal account.
Tomas McGuinness @tomasmcguinness.bsky.social Software developer. I’m making things that run on ESP32 and Matter. I make videos on YouTube https://youtube.com/@tomasmcguinness and blog at tomasmcguinness.com
Tom Brown @nworbmot.bsky.social energy system modeller | professor @tuberlin.bsky.social | https://nworbmot.org | https://github.com/PyPSA | https://model.energy | openmod ally | #freethemodels | he/him
Zeke Hausfather @zekehausfather.com "A tireless chronicler and commentator on all things climate" -NYTimes.
Climate research lead @stripe, writer @CarbonBrief, scientist @BerkeleyEarth, IPCC AR7 lead author.
Website: https://zekehausfather.com/
Substack: https://www.theclimatebrink.com/
Jesse D. Jenkins @jessedjenkins.com Macro-energy systems engineering, optimization & policy. Associate professor at Princeton University. Leads the ZERO Lab. Co-hosts SHIFT KEY podcast. Time100 Next & TIME100 Climate honoree. More at linkedin.com/in/jessedjenkins & zero.lab.princeton.edu
Tim Lord @timlord.bsky.social Energy and climate stuff, mainly. Head of Climate Change @HSBC_UK. Previously @institutegc, @beisgovuk. Views my own.
Michael de Podesta @protons4b.bsky.social Experimental physicist, professionally retired since April 2020, but still experimenting. I've been writing about science since 2008 at http://protonsforbreakfast.org
Very concerned about the Climate and sustainable living.
Andy Simmonds @moreourselves.bsky.social Design & research initiative for hot climates.
ARC: architecture for resilient communities
www.actionresearchprojects.net
- Research & Collaboration
- Pilot Projects
- Volunteer Expert Group
- Knowledge & Skills Exchange
www.simmondsmills.com
Louise Sunderland @louisesunderland.bsky.social Energy policy, energy justice. People are the centre of the clean energy transition.
Managing Principal, Regulatory Assistance Project. Member, South East London Community Energy.
Views my own.
@sunderlandlouis
/in/louise-sunderland-5474b848
Tom Haddon @tomh-analyst.bsky.social 17 years as an energy market analyst, now working on asset transactions and investment advice across the energy industry. All views are my own.
More background: https://www.linkedin.com/in/tom-haddon-62aa7642/
Adam Bell @adambell.bsky.social "Former energy czar" - the Guardian. "Energy big brain" - Politico.
Abigail Dombey @abigaildombey.bsky.social Energy & Sustainability Engineer.
Working in decarbonisation & sustainable infrastructure. Climate, energy, net zero.
She / her.
Tom Hill @tomhill.bsky.social Environmental economist | Stoicism | Wildlife Gardening | Deliberative democracy | Aspiring Hiccup | 🏳️🌈 (he/him) |
Nate the House Whisperer @energysmartwv.bsky.social Everyone deserves a truly healthy and comfortable home. I teach how to do it. It almost always involves a heat pump aka two way air conditioner. One way ACs are dumb. #energysky #heatpumps ⚡️ 🔌 💡 www.natethehousewhisperer.com & electrifyeverything.net
Cllr Mike Sammon @mikesammon.bsky.social Low carbon heating engineer. Heat Geek Elite heat pump installer. Small business owner.
Liberal Democrats Councillor for Cambridge Ward, Southport.
Frank Reif @frankreif.bsky.social Mainly here for climate stuff. Decarbonizing heating and cooling.
Building science / efficiency / retrofit / mechanical engineering etc.
Jonathan Atkinson @lowwintersun.bsky.social Live near Manchester (UK), work on citizen-led/co-op approaches to the energy transition as a way to tackle climate change. Interested in politics, urban design, anarchism, co-ops and football (not necessarily in that order). 
Glyn Hudson @glynhudson.bsky.social Co-founder of @openenergymon, passionate about energy transition and low carbon travel. Love rock climbing, cycling & outdoor adventures, 9yrs #FlightFree https://openenergymonitor.org https://heatpumpmonitor.org https://zerocarbonadventures.co.uk/
Kees van der Leun @sustainable2050.bsky.social 40 years of experience in the energy transition. Building Common Futures, a new energy transition consultancy.
Posts about energy, climate, Ukraine & more.
Also on Mastodon.
Reposts not an endorsement, views my own. #EnergySky
Dan Grey @dangrey.bsky.social Energy and transitioning from fossil fuels. Complex issues I try to shine a light on. Ex-UKAEA and Met Office, now working in community energy. Occasionally politics
Exeter, UK
Damien Kelly @damienkelly1.bsky.social 
Lion Hirth @lionhirth.bsky.social Hertie School and Neon. Energy markets and power systems. Known for analysis, not diplomacy.
Liz Meddings @lzmddings.bsky.social Heat, vent engineer. Energy efficiency. Passivhaus Designer, Retrofit Coordinator. Life indefinitely paused: disabled after a concussion.
George Morgan 🌈 @georgemorgan.bsky.social London-based designer.
https://www.onepointfivearchitecture.com/
He/him.
Dysgwr Cymraeg.
Si Cy @sicy.bsky.social In aviation but incurably curious about renewable energy & clean tech. Blame the Physics degree
Leo Murray @crisortunity.bsky.social Trouble making. Problem solving. Doing my best to help.
Mostly focused on making solar rail happen, at present
Liz Lainé @lizlaine.bsky.social Sustainable homes, resilient communities, strategic #retrofit, data geekery, policy wonkery and the good life. #ukhousing #energyefficiency #proptech
Dr Adam Cooper @draccoops.bsky.social Ex-civil servant. Studies engineers. Invented meta-engineering. Probably. 
Simon Oldridge @sioldridge.bsky.social Cofounder National Emergency Briefing on the climate & nature crisis www.nebriefing.org | Science communicator | former manufacturing CEO & business consultant | Moog 🎹
Jon Burke🌍 @jonburkeuk.bsky.social Energy ⚡️ Waste ♻️ Transport 🚲 Public Realm 🌳
Words in HuffPost, Big Issue, Architects Journal.
Climate Emergency UK Advisory Board.
Enquiries - jonburkeuk@protonmail.com
www.jonburkeuk.com
Octopus Agile Predictor @agilepredict.bsky.social Not affiliated with Octopus Energy
Account run by a human
100% accuracy predicting very low and negative rates over 6 hours before published by Octopus.
Buy me a coffee! —> ko-fi.com/agilepredict
Mick Wall @mickwall.bsky.social Author, journalist, TV & radio broadcaster, podcaster, live performer, husband, dad, animals reign, books are everything, love is all that’s left. 
Tone Langengen @tonelangengen.bsky.social Senior climate and energy policy adviser at TBI
Better Streets for Birmingham @betterstreetsforbirmingham.org We want streets where everyone gets home safely and where there are genuine alternatives to driving.
Account semi-monitored by volunteers trying to cover all bases!
📍 Birmingham, UK
🔗 betterstreetsforbirmingham.org
Stuart Hedges @stuarthedges.eurosky.social Serial adopter of retired greyhounds. Retrofitted a 1970s ex-council house with solar/batteries/heat pump/EV. Keen home cook.
Robert Smallshire @robert.smallshire.no Founding Tubetrain 🚀. Building Demonstrable® at Sixty North. Director for lithium explorer Transition Elements. "utterly competent". Geoscience PhD. 330 ppm CO₂. Cyclist 🚴♂️ . Caver. 🇳🇴🇬🇧
Callum MacIver @cmaciver11.bsky.social 
Ian Fotheringham @ianfo.bsky.social In favour of physics and counting. If we all do a little we will only achieve a little.
Wombat @wombat-ee.bsky.social Electrical engineer working on the grid. I have opinions about energy, climate, transport, housing, and politics. YIMBY. #EnergySky
(Semi-Hiatus)
Xiao Wang @xiaowang1984.bsky.social Principal Engineer Semiconductor Industry and now a DER/Grid Edge worker as well! Opinions own
Tom Swaffield-Bray @tom-s-bray.bsky.social Engineer and climate activist, trying to do my bit in work and outside of work
Make videos over here - www.youtube.com/@TomBray-LowCarbonLifestyle
Working with organisations over here - sb-energy.co.uk
Formerly @tom_bray on Twitter
Harris Berton @harrisberton.bsky.social Climate dad, Canadian energy policy nerd. I post about energy technologies and how we can use them to stop climate change. Views my own. #energysky
Jesse @ember42.bsky.social Process engineer. Energy, infrastructure, industrial decarbonisation, P(🌎net0|☢️📉) << P(🌎net0|☢️📈), Sulphur. Views my own. Ember421 at x
Nigel Banks @nigelbanksoeg.bsky.social 🐙Technical Director, Zero Bills & Low Carbon Homes, Octopus Energy
Bluesky @bsky.app official Bluesky account (check username👆)
Bugs, feature requests, feedback: support@bsky.app