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#photovoltaic

3 posts3 participants0 posts today
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ap.galerie
animalis lucivoris, hey.

- composants électroniques, cuivre, plexiglas, bois - 2022

Balise lumineuse émettant "hey" en code morse après avoir accumulé suffisamment d'énergie ; alimentation par panneau solaire (si besoin par pile bouton).

Light marker which blinks "hey" in morse code after having stored enough energy ; power supply by solar cell (if necessary, by button cell).

#electronic #pcb #transistor #photovoltaic #cell #standalone #lowenergy #storage #morse #code #light #blink #hey #useless #device
#art #techart #lyon #ap22
#ap22
Continued thread
Public
Marcus Jaschen

The Week in Review, Edition 81 (2025-09)

Topics:

🗺️ New feature for bikerouter.de: Split routes at waypoints

🗺️ Feature idea for bikerouter.de: Insert routes at waypoints

🌳 🪚 Cleaning up the garden: Tree cutting before the ban from March 1st

📓 Automating regular content in Obsidian Daily Notes

📈 Defense Against Dishonest Charts: Interactive examples of manipulative diagrams

🐚 CLI tool of the week: cat (with the -t option)

🔅 Finally independent from the manufacturer's cloud: Monthly reporting of photovoltaic system metrics completely from own data

🔊 Listened to this week: Township Rebellion, Sophie van Hayden, Hophiluck, Mona Moore, Artur Achziger, Max Muth, Christopher Lawrence, Ed Lopes

#weekly #Bikerouter #Garden #Obsidian #Charts #CLI #cat #Photovoltaic #Modbus #Numbers #TSV #InfluxDB #Grafana #GoLang #Techno

https://www.marcusjaschen.de/en/blog/2025/2025-09/

Marcus Jaschen · The Week in Review - 2025-09🗺️ New feature for bikerouter.de: Split routes at waypoints 🗺️ Feature idea for bikerouter.de: Insert routes at waypoints 🌳 🪚 Sawing through the garden: Tree cutting before the ban from March 1st 📓 Automating regular content in Obsidian Daily Notes 📈 Defense Against Dishonest Charts: Interactive examples of manipulative diagrams 🐚 CLI tool of the week: cat (with the -t option) 🔅 Finally independent from the manufacturer’s cloud: Monthly reporting of photovoltaic system metrics completely from own data 🔊 Listened to this week: Township Rebellion, Sophie van Hayden, Hophiluck, Mona Moore, Artur Achziger, Max Muth, Christopher Lawrence, Ed Lopes
Public
LMS Solution

MATLAB Simulation of Photovoltaic battery charger based on the Zeta converter
Simulates a photovoltaic battery charger using the Zeta converter in MATLAB.
For Indian Customer: zurl.co/B88ZX
For International Customers other than India zurl.co/ZHBef
zurl.co/kN3FY
#MATLAB #Simulation #Photovoltaic #BatteryCharger #ZetaConverter #RenewableEnergy #SolarPower #EnergyStorage #CleanEnergy #TechInnovation #PowerElectronics #EnergyEfficiency #ElectricVehicle

Public
The Habitat Foundation

They plan to build a large photovoltaic park in one of Europe's biodiversity hotspots: the Eastern Rhodopes in Bulgaria. The site is almost under one of the few breeding colonies of Griffon vultures in the Balkan. Though electricity is a necessity, this is not the best place to build a solar park. Sign the petition to force the initiators to move to another place: openpetition.eu/petition/onlin

https://www.openpetition.eu/petition/online/save-the-wild-beauty-of-madzharovo-stop-the-solar-park-project-in-the-arda-valley
#Madzharovo#маджарово#solarpark
Public
BlueDot🇺🇦

@ShaulaEvans

I've worked with the gear but not in an area where security would be a problem. If I were designing it for your environment from scratch, I'd do a plywood box, with straight sides and an angled top. The inside would be big enough for a couple of golf cart #batteries and an inverter. A 200W #photovoltaic panel would be perhaps a meter by half a meter in size, and would cover the top, which is angled as appropriate for your latitude.

Replied in thread
Public
Mark

@davidho This was an interesting read. Particularly the "solar is booming" angle. A decade ago, give or take, new utility-scale solar became cheaper than operating existing coal-fired power plants. Good to see continued cost declines & increased installations.

Utility scale PV is dirt cheap. Now the challenge is which path will dominate:

renewables + fossil fuel peaking plants;
renewables + nuclear; or renewables + battery storage.

#Solar#SolarPV#photovoltaic
Public
One Community

A grid-tied sustainability plan connects renewable energy systems, like solar panels, to the electrical grid. Excess energy feeds into the grid, while shortfalls draw from it. This semi-autonomous setup balances renewable energy's variability, ensuring consistent power supply for sustainable living.

onecommunityglobal.org/grid-ti

#GridTied #SustainableEnergy #RenewableEnergy #SolarEnergy #Photovoltaic #GreenLiving #EcoEnergy #SolarMicrogrid #GreenEnergy ##EnergySolutions #SolarPower#opensource

Public
kravietz 🦇

Yet another demonstration of a “cyberattack on solar panels”, this time by a #Greece security researcher Vangelis Stykas.[^1] Not much detail has been published which I guess is because he’s showing it on some conference, but judging from the past experiences it’s not an attack on the actual #photovoltaic panels but on the PV inverters, which routinely are connecting to the Internet so that their owner can enjoy shiny production charts in mobile apps 😉

These inverters, apart from connecting to a shady server in Asia, also have bugs, which can be found and exploited by various hacking groups worldwide. The end result is that a random person anywhere in the world can make millions of panels stop delivering electricity to the grid at one moment only because they use inverters by one vendor. So much about decentralised #renewables 😉

Of course, this is not a new problem[^2] and it has been noticed by the regulator, which resulted in extending the scope of EU NIS2 cybersecurity directive to the whole electricity sector, including PV and wind (which had been also hacked in the past, including notable 2022 hack by Russians). I don’t now how in other countries, but the ongoing NIS2 enactment attracted outcry from the… photovoltaics lobby, for whom introduction of basic cybersecurity controls into the inverters they’re selling means slightly decreased commission and an extra cost. I guess sustained presence of these vulnerabilities, on the other hand, is a business opportunity, because when millions of inverters are hacked and remotely vandalised, you can just sell new ones 🤷

[^1]: https://www.bloomberg.com/news/articles/2024-12-12/europe-s-power-grid-vulnerable-to-hackers-exploiting-rooftop-solar-panels

[^2]: https://berthub.eu/articles/posts/the-gigantic-unregulated-power-plants-in-the-cloud/

Bloomberg · Europe's Power Grid Vulnerable to Hackers Exploiting Rooftop Solar PanelsBy Eamon Farhat
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Paula Borchardt

Here’s an interesting (and hopeful!) article by Bill Mckibben about US citizens and the rest of the world (despite any upcoming lack of support from the US govt!) continuing to move ahead with clean energy implementation! As Mckibben writes, “We the people still have a role to play”. commondreams.org/opinion/trump

Common Dreams · As Trump Forfeits US Climate Leadership, We the People Still Have a Role to Play | Common DreamsMany of us can join in a genuinely global citizens’ fight for rapid action.
#environment#climate#ClimateChange
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