Zum Dauerthema #solar Statik am #Balkon:
Die Lastenannahme am Balkongeländer - auch schon Stand 06/71 - gemäß DIN 1055-3 - Verkehrslasten Pkt. 7.1.1. (für Bauherren/Architekten) beträgt 50 kg/m.
Bei einer Balkonbrüstung von etwa einer Länge von 3,75 m, wäre also eine Belastung von 187,5 kg möglich. Standardmodule wiegen 20 kg, auf diese Länge bekäme 2 #Solarpanels. Gewicht also 40 kg.
Hier noch zwei unserer Little Sun Solarlampen beim Sonne-Tanken und dann in Aktion (Collage von zwei Fotos vom 21.07.2024)
#ode_an_die_masten #geschenkteslicht #nonprofit
#solarenergie #solarlampen #solarpanels #littlesun
So today is not going entirely to plan.
The set of additional #solarpanels I connected up refuse to give us juice. I tried to trace the fault and got jack shit info because my cheap ass 19 year old #multimeter is (confirmed by many tests now) not working any more. Its fuse is fine too, as is its #battery. It just displays zeros.
So add to the list of unexpected expenses and delays one new multimeter...
#mutualaid is our lifeline to #selfsufficiency so we can help others. Can you help us out with our expenses for...?
Multimeter: $7-8 at Harbor Freight
Crimp connectors: $?
Tyres: ~$1200 (Vulpibus)
Refilling fuel: ~$100
Refilling my overdraft: ~$500
Refilling my other overdraft: ~$250
Packs drauf – Einladung zur Solarparty
Solarinfos von und für Nachbar*innen
Habt Ihr schon mal darüber nach gedacht, eine Solaranlage auf Euer Dach zu packen? Dann komm doch gerne zu unserer Solarparty!
So können wir gemeinsam die Energiewende in unsere Nachbarschaft bringen!
Dein Energiebedarf lässt sich kostengünstig zum größten Teil mit Solarkraft decken. Das ist gut für Dich und Deine Kinder und Enkel. Ideal sind dafür Dächer.
Was ist bei der Installation einer Solaranlage zu beachten?
Was musst Du wissen?
Was kostet das?
Ehrenamtiliche Expert*innen von der Solarinitiative Köln informieren mit einem Vortrag. Es gibt Tipps und Infos, die Dir die Umsetzung der eigenen Solaranlage erleichtern. Deine Fragen werden beantwortet.
Unsere Little Sun Solarlampen beim Sonnetanken und in Aktion
(Foto vom 03.03.2025)
Die Lampen sind dimmbar, leuchten auf niedrigster Stufe ca.50 und auf höchster Stufe ca. 4 Stunden und sind aus sehr robustem, vollständig recycelbarem ABS-Kunststoff.
Little Sun ist ein Projekt des Künstlers Olafur Eliasson und des Ingenieurs Frederik Ottesen.
Mit dem Kauf solcher Lampen unterstützt man das Projekt, mit dem elektrisches Licht auch in Haushalte ohne Stromnetz gebracht wird.
"Home solar power is like a victory garden for energy that doesn't need watering or weeding."
(L) copyleft, please steal and use as your own
@researchbuzz Very cool! TY!
Waste-based perovskite solar cell achieves 21.39% energy efficiency
https://techxplore.com/news/2025-02-based-perovskite-solar-cell-energy.html
#SolarCell #SolarPanels #recycling #perovskite #PerovskiteSolar
The next-generation #SolarCell is fully #recyclable
12 February 2025
Anders Törneholm
"In a study published in Nature, researchers at Linköping University have developed a method to recycle all parts of a solar cell repeatedly without environmentally hazardous #solvents. The recycled solar cell has the same efficiency as the original one. The solar cell is made of #perovskite and the main solvent is water."
Read more:
https://liu.se/en/news-item/nasta-generations-solcell-ar-helt-atervinningsbar
#SolarEnergy #SolarCells #sustainability #recycling #SolarPunkSunday #SolarPanels
From 2023: These revolutionary #TransparentSolarPanels could one day replace #windows
By Joshua Hawkins
Updated Jan 25th, 2023
"The hunt for a truly clean energy source that can replace our current fossil fuel systems is still underway. While we’ve seen breakthroughs in solar panels that don’t need sunlight to generate energy, we’ve yet to conquer the transparency issue with #SolarPanels. Now, though, a group of researchers over in #Japan have made a very promising step towards creating transparent solar panels.
"Over the years, solar panels and solar energy has shaken up how we think about generating consumer electricity. But solar panels are still expensive and take up a lot of room. What if we made transparent solar panels that could replace windows, though?
"That seems to be the idea behind a new paper published by researchers in the journal Scientific Reports earlier this year. According to the authors of the paper, they may have finally figured out a way to make what they call near-invisible solar cells. These transparent solar panels would essentially be able to be added to windows – if not built directly into them – and then supply energy harnessed from sunlight.
"As the threat of climate change continues to rise, finding better ways to integrate clean energy like solar panels is a priority for many. With the threat of the sea level rising, being able to curb our greenhouse emissions is vital to ensuring the Earth continues to thrive in the future. Transparent solar panels would allow us to blend them into homes and buildings more easily and efficiently.
"The researchers working on the new study were led by #ToshiakiKato at Tohoku University. The team’s design works by exploiting the interactions between ultra-thin materials using a conductive material known as #IndiumTinOxide. This alloy is both colorless and transparent, which could make it a good contender for transparent solar panels.
"The complex interactions between the material and the design used to create the transparent solar panel system are broken down in the paper. But, based on what the researchers shared, the new system works by coating the material, also known as #ITO, with carefully chosen thin metals and then placing an insulating layer between the ITO and a vapor of tungsten disulfide.
"This setup allowed the researchers to control the contact barrier between the materials. Additionally, the designs the researchers came up with allowed for a more effective energy conversion than current ITO-based solar cells. The researchers also discussed how the design could be used on a large scale to create more efficient and transparent solar panels."
Source:
https://bgr.com/science/these-revolutionary-transparent-solar-panels-could-one-day-replace-windows/
#SolarPunkSunday #Solar #SolarCells #TransparentSolarPanels #SolarWindows
#Solarpanels eigenen sich übrigens hervorragend als Schilder bei einer #Klimademo!
Den Aufkleber kann man unter anderem im @ews Store gegenüber dem Hauptbahnhof bekommen.
This new device claims to be a plug-and-play home battery that should work with Home Assistant—just install it yourself, no electrician required. But does it actually work as promised?
I unbox it, set it up, and put it to the test! Watch here: https://youtu.be/WOxB-d-ofj4
#HomeWizard #HomeAssistant #SmartHome #HomeBattery #Environment #Energy #SolarPanels #Sustainability
https://youtu.be/WOxB-d-ofj4
Korean Scientists Create ‘INVISIBLE SOLAR PANELS’ That Allow Windows To Generate Electricity
Eco-friendly #SolarPanels
"The advancements in materials science, particularly in the development of #perovskite and #QuantumDot solar cells, are setting the stage for a revolution in solar technology. These materials offer improvements in efficiency and versatility, promising to transform vast expanses of glass into power-generating surfaces that are both effective and unobtrusive."
Posted by Emily Hart
January 26, 2025
"Korean scientists have introduced a groundbreaking innovation—transparent solar panels—that can transform windows into power-generating surfaces without compromising their transparency. In today’s densely populated urban landscapes, where space is a premium, this technology offers a solution to the spatial limitations of traditional solar panels, seamlessly integrating renewable energy generation into modern cityscapes.
"These 'invisible' solar panels represent a revolutionary step toward a sustainable and energy-efficient future, combining functionality with aesthetic appeal.
"The journey toward transparent solar technology took a significant leap in 2014 when researchers at Michigan State University developed the first fully transparent solar concentrator. This technology uses organic molecules to absorb non-visible wavelengths of light, such as ultraviolet and near-infrared, while allowing visible light to pass through.
"The absorbed energy is directed to the edges of the panel, where thin strips of photovoltaic cells convert it into electricity. This innovative approach ensures that windows and other transparent surfaces can generate electricity without losing clarity or altering their appearance.
"Since its inception, transparent solar technology has evolved, achieving remarkable strides in energy efficiency and practical applications. Initially, these panels operated with an energy conversion efficiency of just 1%, but recent advancements have pushed this figure to nearly 10%.
"Researchers like Richard Lunt from Michigan State University have focused on enhancing efficiency and scalability, envisioning a future where any glass surface can double as a power generator. These advancements hold the potential to revolutionize renewable energy deployment, particularly in urban settings, where traditional solar panels are less feasible.
"The applications of transparent solar panels are vast and diverse, spanning multiple industries. In architecture, these panels can be seamlessly integrated into buildings as windows, facades, or skylights, turning structures into self-sustaining energy sources. Urban infrastructure, such as bus stops, train stations, and public spaces, can adopt these panels to generate electricity without compromising design.
"Consumer electronics, including smartphones, wearables, and portable devices, stand to benefit from embedded transparent solar panels, reducing reliance on frequent recharging. The transportation sector is also exploring this technology, envisioning its use in vehicles, airplanes, and other mobility solutions.
"Despite their initial lag in efficiency compared to traditional opaque solar panels, ongoing research in advanced materials like perovskite and quantum dots has significantly narrowed the gap.
"These materials enhance light absorption and energy conversion rates while reducing production costs, making transparent solar panels increasingly competitive. Companies like Ubiquitous Energy are leading the way in commercializing these technologies, achieving conversion efficiencies close to 10% and exploring scalable manufacturing processes.
"The future of transparent solar panels is promising. As research continues and production methods improve, these panels are expected to become more accessible and affordable, accelerating their adoption across residential, commercial, and industrial sectors. Their ability to integrate into existing infrastructure without requiring additional land makes them particularly attractive for urban areas, where sustainability and space efficiency are paramount."
Read more:
https://scienceadvance.com/korean-scientists-create-invisible-solar-panels/
#SolarPunkSunday #SolarPower #RenewablesNow
Wir haben wieder eine Spende gebrauchter #Solarpanels bekommen, die wir in unserem kommenden #Upcycling Workshops in #Denzlingen, #Freiburg-Mooswald, #Bodman-Ludwigshafen, #Karlsruhe & #Hohenlohe nutzen werden. Anmeldung bald auf unserer Website. #energysky #secondlife #handschue #luxtools
Und dann gibt es noch so kleinere Sachen:
Mehr Infos: https://balkon.solar/zaun
https://balkon.solar/news/2025/01/11/balkonsolar-und-partner-mit-forderungen-zur-solaroffensive-der-stadt-freiburg/
Putting our first solar panels! videos.trom.tf/w/eFaTmRTaSVtbK…
We put 260W of solar panels on the roof and connected them to our Bluetti AC180. And we had to do part of it in the dark.
We post only on @peertube [framapiaf.org] despite getting a lot less views there, for now, than we would on Youtube. But we need to create new/original content on Peertube if we are to make it more popular.
On top of that I love Peertube. No ads, no bullshit. Just a sane video platform.
OSM mappers who collect solar panel locations - if you would map these as nodes, would you use one or two nodes?
You may have heard about professor #JoshuaPearce and #appropedia , but have you heard about #agrotunnels ?
In #Pakistan gibt es einen krassen Solarboom. Im ersten Halbjahr 2024 wurden 13 Gigawatt #Solarpanels meist aus China importiert.
Zum Vergleich in Deutschland haben wir im gleichen Zeitraum 9,3 GW zugebaut, klar, man kann Import und Zubau nicht direkt vergleichen und Zahlen für den Zubau gibt es in Pakistan nicht.
Und das sind nur die Zahlen für dieses Jahr, es wurde auch schon letztes Jahr enorm viel importiert.
Das schafft für das Land ganz neue Entwicklungsperpektiven, denn im Gegensatz zu fossilen Brennstoffen muss ich hier nur einmal Geld ausgeben, habe aber den Strom dann viele Jahre.
Und es zeigt auch: Deutschlands Weg erneuerbare Energien auszubauen ist kein #Sonderweg sonder was alle Länder der Welt machen!
Das schwierigste am #Solarpanels retten ist das umklappen der Sitze im Grüne Flotte #carsharing Transit - 58 Stück gesichert und bereit für eine Upcycling Aktion!
From: @balkonsolar
https://freiburg.social/@balkonsolar/113350122694353258
