Benchmarks, notes, talking points, tools for the energy transition; #energyefficiency #renewables #electrification #energyflexibility
Earth
Joined July 2009
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Energy Notes retweeted
NEW PAPER: Why the 'Fabric First' dogma is out of date and needs a radical rethink.
With our paper we want to provoke and start a discussion rather than provide all the answers.
More in this 🧵
Paper with @ecioxford @UCL_Energy @NTUadbe in @BuildingsCities
Sustainable planning and lifecycle thinking of energy infrastructure - goo.gl/scholar/YaVDDa #ScholarAlerts
A short article from science on various approaches to integrated thinking about sustainable energy systems, and how to expose tradeoffs.
"One of the best strategies [to move forward] is to lower the stakes." ~ Rick Rubin
Very recognizable quote that explains some of the inaction that we sometimes observe.
"Even now we are very far from having made the moral, political, and psychological adjustments which are implied in this transition from the illimitable plane to the closed sphere." ~ Kenneth Boulding (1966)
An early reference to 'spaceship earth' and circular econmy. arachnid.biosci.utexas.edu/c…
Land-use (including mining) for various electricity generation technologies from @OurWorldInData: midpoints between 1 and 25 m2/MWh.yr
Further benchmarks:
* residential electricity use in EU: ~3.5 MWh/yr
* in an all-electric home: ~10 MWh/yr
ourworldindata.org/land-use-…
Are Electric Cars Sustainable?
A nice review of a complex question, identifying the environmental hotspots for improvement, and how various BEV OEMs perform on them. carsguide.com.au/ev/advice/a…
Energy Notes retweeted
Green hydrogen for domestic heating!? It would need 4-5 more renewable electricity than a heat pump. How can this be ever justified?
Excellent work from the University of Aberdeen’s Professor Tom Baxter @aberdeenuni
#heatpumps #allelectriceu #electrifynow #hydrogen – at Etterbeek, België
A few thoughts:
* ESG claims need to be able to withstand scrutiny, but so do greenwash claims.
* There are no inherently green products.
* ESG is about alignment, data, disclosure, education, transparency, and it's a long-term effort.
While the intention of ESG investing should be applauded, investors are right to wonder: what is the ESG scam level? The question is: what really qualifies a stock for inclusion in an ESG fund?
See @forbes forbes.com/sites/walvanliero… #ESG #ElonMusk #SEC #ExxonMobil #S&PGlobal #Tesla
Good checklist for credible claims:
1) use standards or good practices
2) measure & bring data
3) verify by a third party
4) set a target & improve
5) define & expand scope
blogs.edf.org/energyexchange… @EnergyEval
Welcome and timely review of the state of play on peer-to-peer, community self-consumption and transactive energy, expanding the boundary of imagination on the future energy system 👌
sciencedirect.com/science/ar… @users_tcp @SamuelDLThomas
Speed is not very sustainable. At 40 Gb/s, this cable is fast and smart, but most the 40+ materials in its electronics at unlikely to be recoverable.
appleinsider.com/articles/22… #sustainability #circularity
Do solar-powered cars make sense? Here are a couple of numbers to help you make up your mind:
* 5 sqm of solar panels
* one hour of charging provides 12 km range (at 100 km/h)
drive.com.au/news/solar-powe… #emobility via @LVinckx
Considering that an average car is driven 35 km per day, three to four hours of (Australian) sunshine suffice to keep this car unplugged. @dgcarvajal
Energy Notes retweeted
How far do you need to drive an electric vehicle until it reduces carbon emissions compared to a petrol or diesel car? With the current electricity mix in Germany it is 40,000km. Great graphic by @martindopp @KITKarlsruhe.
Energy Notes retweeted
Major new German hydrogen study by @oekoinstitut for @StiftungKlima. Key role seen in industry, electricity system balancing, aviation & shipping. Very limited role for hydrogen in transport and buildings.
oeko.de/publikationen/p-deta…
THREAD 1/6
By 2050, we will be hunting grams and kilograms of CO2, instead of today's tons.
Thanks for raising the bar! I like this perspective 👍😀. Without fossil fuels, we are now talking about a difference between 2.5, 4 or 12 g CO2e/kg instead of today's 300 - 700 g. The @VattenfallGroup article covers the right angles.
Energy Notes retweeted
"Electrify what can be electrified", says @TimmermansEU at the @Eurogas_Eu annual conference. I will talk about the options in heating later today. In short: #heatpump technologies are ready for all applications. Today.
A decisive focussed industrial strategy provides much stronger signals than market fundamentalism, but in the end, the energy transition is about collaborative change.
euractiv.com/section/electri…
#energytransition #emobility