Energy Notes

@anunezjimenez @readwise save

NEW PAPER: Why the 'Fabric First' dogma is out of date and needs a radical rethink.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.

An early reference to 'spaceship earth' and circular econmy. arachnid.biosci.utexas.edu/courses/thoc/r…

"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)

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-per-e…

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/are-…

@Gordon_DHG @AllElectricEU @aberdeenuni Correct, but one needs seasonal storage only for the seasonal unbalance which is, for example, around 2 weeks of winter supply. In a decarbonised world, is green hydrogen really the only solution we have at our disposal?

@AllElectricEU @aberdeenuni If wind & solar are providing the despatchable electricity, then for 100W in, there are 58W out (using Prof. Baxter's conversion factor) Why? The only way to get despatchable electricity from wind & solar is to store the electricity from season to season as… green hydrogen!

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

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.

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 👌 #tbl2" target="_blank" rel="nofollow noopener">sciencedirect.com/science/articl… @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/22/04… #sustainability #circularity

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

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-pow… #emobility via @LVinckx

There is still low-hanging fruit to conserve energy. #energyefficiency

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.

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/… THREAD 1/6

By 2050, we will be hunting grams and kilograms of CO2, instead of today's tons.