Its Saturday morning and the veggie curry is already slow cooking. Have a great weekend everyone

#solar #cooking #SolarCooker

Also beim Thema Solarausbau auf städtischen Gebäuden - eine der Forderungen des Klimaentscheids - habe ich nicht den Eindruck, dass die Stadt #Freiburg schon „in der Umsetzung“ ist.

SuS des FG mussten erst eine Unterschriftenliste starten, damit ihr Schuldach eine #Solaranlage bekommt.

Bei einer anderen Schule machen wir demnächst Upcycling Workshops weil die Stadt die Anlage des Schul Fördervereins abbauen lässt.

Und bei der #FSB bekommen #Mieter Abschreckungs-Schreiben mit teuren und rechtlich angreifbaren Forderungen (Anbringen durch Fachunternehmer) wenn sie Steckersolar nutzen wollen.

Das Denkmalschutzamt führt regelrechte „Abratungen“ durch wenn Bürger am ausgebauten Dach(#Balkon) #Solar anbringen wollen. Fernab der geltenden Rechtslage.

From: @sbamueller
https://freiburg.social/@sbamueller/114759704997466695

Solcast forecast for today (South East 4x400w panels) -

5.75 kWh

Solcast forecast for today (East 4x400w panels) -

4.78 kWh

Solcast forecast for today (West North 6x400w panels) -

12.72 kWh

Solcast forcasting a total of 23.2574 kWh

#Solar #SolarGeneration #Solcast #SolarPV

Renewable power share in Germany
27th of June 2025: 71%
Last 90 days average: 70%

#solar #solarpower #photovoltaik #wind #windpower #windkraft #renewables #erneuerbare #energiewende

27th of June 2025
237.4 GWh solar power
19.6% of all generated power
All data for Germany

#germany #solar #solarpanels #solarpower #pv #photovoltaik #PVbuddies #renewables #energiewende

Batteries are so cheap, solar doesn’t sleep.

Thanks to plummeting prices, analysts say that solar plus batteries can now provide round-the-clock power in the sunniest parts of the world, undercutting fossil gas and reshaping grid planning.

Cities like Muscat, Oman, and Las Vegas can already hit that steady power mark for up to 99% of the hours in a year, while Hyderabad, Madrid, and Buenos Aires can get 80-95% of the way there using the same setup. #solar #battery #renewables #energy #climate #ClimateChange #climateemergency #environment

https://ember-energy.org/latest-insights/solar-electricity-every-hour-of-every-day-is-here-and-it-changes-everything/

🔋 Yesterday, a #Solar battery saved @edent@mastodon.social £1.58 by using 4.51kWh of stored electricity.

Total battery savings since August 2023:
💷 £793.73
⚡ 2,372 kWh

FAQ: https://shkspr.mobi/blog/solar-faq/

A new solar farm is operational as of June 20 in Perthes, France and is currently the largest floating solar farm in Europe.

“On an area of former gravel pits, Q Energy is realising Europe’s largest floating solar power plant to date with 74.3 MW. And many more will follow,” Q Energy said on its website.

#renewables #solar #climate #climate #ClimateChange

The floating solar site, called Les Îlots Blandin, took over the location of a former 127-hectare gravel extraction pit that shut down in 2020.

https://www.ecowatch.com/largest-floating-solar-farm-europe.html

When China’s tech & economic dominance is undeniable by 2030 & everyone acts shocked—show them this 2024 chart. 📈 China didn’t just double US electricity—it did it with solar leading. ☀️⚡ You can’t build EVs, Robots, AI, fabs, or maglevs without power. They scaled. We coasted. #Disruption #TWh #Solar

New #Solar stats.
East facing solar panels 🆚 West facing solar panels.
London, UK.
Get all the data at https://gitlab.com/edent/solar-data/-/blob/main/README.md

FAQ: https://shkspr.mobi/blog/solar-faq/

Danke @umwelthilfe für die Einladung & die Zusammenarbeit!

Zusammen haben wir das Recht auf #Solar am #Balkon erkämpft und werden sicher auch weiterhin kämpfen müssen!

From: @balkonsolar
https://freiburg.social/@balkonsolar/114752028001891905

US startup can deploy retired oil and gas wells for long duration energy storage system, with hydropower.

https://cleantechnica.com/2025/06/27/new-long-duration-energy-storage-system-deploys-underground-hydropower/

#energy #energystorage #hydropower #oilandgas #renewableenergy #renewables #wind #solar #usenergypolicy #energypolicy #texas #texasgrid #sustainableenergy #greenenergy #cleanenergy

US startup can deploy retired oil and gas wells for long duration energy storage system, with hydropower.

https://cleantechnica.com/2025/06/27/new-long-duration-energy-storage-system-deploys-underground-hydropower/

#energy #energystorage #hydropower #oilandgas #renewableenergy #renewables #wind #solar #usenergypolicy #energypolicy #texas #texasgrid #sustainableenergy #greenenergy #cleanenergy

#energy #solar #perovskite

'In APL Energy, by AIP Publishing, researchers from National Yang Ming Chiao Tung University in Taiwan created perovskite solar cells that effectively convert indoor lighting into electrical power.'

https://publishing.aip.org/publications/latest-content/charging-devices-with-indoor-lighting/

I am feeling more confident in my little #solar experiment here

I was worried that absorbing 1-2 kWh per day (about a third of my daily use in the summer) didn’t mean anything in the grand scheme of things

I was also worried that since we have so much excess energy in the summer, my experiment was moot

But I’m coming to realize a few things

first: how I’m using my solar

I have a 2 kWh battery/generator that I can easily fill on clear days, probably even several times over

I have my freezer on this 24/7, that’s the only appliance not plugged into the grid; that’s about 1 kWh per day of background use

Sometimes I spend my work from home days outside, plugged into this battery; that’s 1 kWh per day too, spread over 8h

As for surge uses, the vacuuming and the laundry machines also haven’t needed the grid for over a month; that’s another 1-2 kWh within a few hours but not every day

The vacuuming is the most surge-like of these examples

usage spikes

I understand that usage spikes (noon & evening for example) are an issue for energy providers, especially when most of the energy comes from nuclear sources (as is the case in France)

Nuclear reactors aren’t meant for episodic production within the day, their cost is constant throughout the year and they are meant to function more or less constantly at their optimal level

Spikes mean unpredictability, and we can’t guarantee that there are enough dams, wind and solar to absorb tomorrow’s for example; which means having giant backup generators that run on fossil fuel, and I’m not in favor of those

excess in the summer at utility scale

I’m not sure how energy providers deal with excess energy produced from domestic solar and such, but if negative prices are any indication, they aren’t doing great

This is also a spike, just in production rather than use, and it’s equally difficult to deal with this problem at scale

We would need storage at scale, and we don’t have that

So… We can’t really count on excess production spikes to excuse our behavior (consumption without regard, just “because we have excess anyway”)

disclaimer

I am in no way an energy professional and I don’t work at a utility

I’m just a random trying his best

Idly talking with partner about my plans for solar on our roof. I'm betting any solar installation company will arrive here in Internal Combustion engines vehicles.

#Ottawa #Solar

Die erste #Klima Unterschriften Übergabe an OB Martin Horn: Schüler:innen aus #Herdern und Lehrer und AK #Klimaschutz des Bürgerverein fordern endlich die Eigeninitiativen der Schulgemeinschaften genehmigen, eigenständig #PV - Anlagen auf ihren Dächern zu errichten und zu betreiben - bisher blockt die Stadt #Freiburg bzw. das Gebäudemanagement.

https://www.openpetition.de/petition/online/pv-anlagen-fuer-herdermer-schulen

#Solar #Energiewende

Veranstaltungsempfehlung für Samstag in #Karlsruhe Rüppurr:
"Energiewende zu Hause"
14:00 bis 17:00 Uhr
#Energiewende #Solar #photovoltaik #waermepumpe
https://rueppurr.de/umweltwerkstatt/energiewende-zu-hause/

Wasserstoff statt Atomkraft? Wie funktioniert die Energiewende?

Viel wird berichtet über Balkon-PV-Kraftwerke, über immer mehr Windkraftanlagen, über die Abschaltung von Atomkraftwerken, den Ausstieg aus der Kohle und den Einstieg in Wasserstoff. Aber wie die Energiewende eigentlich funktionieren soll, wird kaum erklärt.

Ich möchte mehr Klarheit in dieses Energie-Wirrwarr bringen, möchte informieren über die Vor- und Nachteile von Elektroautos sowie Brennstoffzellenbussen und klären, ob beispielsweise Stahlwerke mit Wasserstoff betrieben werden können.

Im Rahmen des Kölner Klimafestivals bietet ich an, Fragen zu stellen, Informationen einzuholen und sich ein eigenes – vielleicht neues Bild von der Energiewende zu machen. Komm gerne ins Allerweltshaus und bring Dich auf den aktuellen Stand – und bring gerne Fragen mit.

Schulungsraum im

Allerweltshaus Köln

Geisselstraße 3-5

50823 Köln

Veranstalter

Dipl.-Ing. Sven Geitmann, Inhaber und Gründer des Hydrogeit Verlags

https://www.klimaschutz.koeln/klimafestival/festivalwoche

https://koelle4future.de/event/wie-funktioniert-die-energiewende/

#Atomkraft #Energiewende #Klima #Koeln #Solar #Wasserstoff