Sunday, July 20, 2025

Zero Net Energy - July 20, 2025

City-scale heat pump for district heating in Esbjerg, Denmark
https://www.youtube.com/watch?v=-bIlAkTDw8Q
hat tip Joe Rosenow

China’s Antarctic Outpost has Hydrogen, Wind for power year round
https://www.sixthtone.com/news/1016781
hat tip Mark Z Jacobson

Solar panel recycling in Japan
https://www.bbc.com/reel/video/p0ky4ql8/japan-s-solution-to-the-solar-panel-waste-problem

Fukuoka, one of the most water-efficient cities in the world
https://www.bbc.com/reel/video/p0kxwcd1/inside-one-of-the-world-s-most-water-efficient-cities

Nordhaven district of Copenhagen designed as a 5 minute city
https://www.theguardian.com/lifeandstyle/2024/dec/10/the-five-minute-city-inside-denmarks-revolutionary-neighbourhood

Vienna and climate
https://www.npr.org/2025/05/13/nx-s1-5339958/climate-laws-solutions-vienna-solar-geothermal
https://www.npr.org/2025/06/15/nx-s1-5400642/affordable-housing-environment-vienna-climate-change

Respyre - bioreceptive concrete cladding and a specialised moss gel making it easy to create green facades that purify the air, sequester carbon, and cool buildings
https://www.gorespyre.com/

Generation of Representative Meteorological Years Through Anomaly-Based Detection of Extreme Events now published in the Journal of Building Performance Simulation
It introduces a new approach to representing climate extremes in building simulation through the development of Representative Meteorological Years (RMYs).
Christoph Reinhart, MIT Professor and advisor on the paper: you can use the same file to predict typical energy savings from different energy conservation measures and get more accurate estimates of overheating hours and peak loads.
Read the paper: https://lnkd.in/dcFnsRyH
Explore the code: https://lnkd.in/dxiA3Edj

From vacuum cleaners to strawberries - Dyson Agriculture
https://www.core77.com/posts/137666/James-Dyson-is-Revolutionizing-Sustainable-Agriculture

EcoFlow OCEAN Pro: A Smarter, Scalable Solar Battery For Whole-Home Backup
https://cleantechnica.com/2025/07/15/ecoflow-ocean-pro-a-smarter-scalable-solar-battery-for-whole-home-backup/

47 kW of PV through solar tiles with a 46 kWh house battery provides 159% of its own power, including two electric cars, to a house built in 1973
Report in German and French
https://solaragentur.ch/files/solarpreis-gewinner/159%25%20PEB-Sanierung%20Villa%2C%203150%20Schwarzenburg%20BE.pdf
hat tip: @JessePeltan

Old Dubai’s ways of ameliorating extreme heat
https://www.bbc.com/future/article/20250715-how-old-dubais-historic-streets-beat-extreme-heat
If you hit a paywall, try https://archive.md/2g5ht

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Zero Net Energy - July 20, 2025

City-scale heat pump for district heating in Esbjerg, Denmark https://www.youtube.com/watch?v=-bIlAkTDw8Q hat tip Joe Rosenow China’s An...