Der Juli 2025.
100% Autarkie.
504kWh "Energieverbrauch"
570kWh von der Sonne "geerntet".
=> 88,4% Gesamtwirkungsgrad
11,4 kW (peak) DC gekoppelt
1,23 kW (peak) AC gekoppelt
3 phasige Victronanlage
62,7 kWh Batterie

(Thread wird fortgesetzt!)
#edit: #typo

#pvbuddies #solar #solarpunk #solarpower #PVMonat #pvbubble #pv #machtdiedaechervoll #energiewende #victron #victronenergy
#klimakatastrophe

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Screenshot des vrm für Juli 2025 Zahlen im Tröt. Automatisch: The image displays a system overview of energy consumption, solar energy production, and battery usage, shown through a line and bar graph. It includes data for a specific month with visual indicators for consumption (in orange), solar energy (in yellow), and battery (in blue)

I’ve been experimenting with my newish solar battery

Represented here is the end of the charge cycle yesterday at about the same time the sun started to set

I’ve been powering the freezer with this 2 kWh battery, and every morning there is ~50% charge left, and so far every day I get it up to 90% (by choice) from solar alone

I can also do a load of laundry or two, and some vacuuming, without being even connected to the grid (if I get the timing right)

Of course this is clear summer weather, so this won’t be the same all year

(This is far from sufficient to power the entire house, it’s just an experiment)

Essentially, 1-2 kWh that aren’t drawn from the grid on a daily basis

#solar

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Photo of the battery display panel. The numbers read: Charging time 29 min 90% capacity Input 320 W Output 0 W

Dear #lazyWeb, what's the most cost effective way to buy batteries for my #solar panels? Ideally I'd like to be able to take them with me easily if I move house.

#solar #PV I need to make a call on buying a battery for our solar system, but I don’t know what info is important and how to size it — it’s quite an expensive decision.

Anybody got some advice or useful links 🔗 ?

EDIT All sorted now, thanks Fedi friends!

35 years ago, when I came here, there was no electricity on site so I saved up the equivalent of a month's wages to buy a tiny 45W solar panel. Now after years of relying on the grid, I have finally managed to install a decent PV system. 4KW of panels. a 6KW inverter, and 10KWh of storage - and all for a cost comparable to what I spent all those years ago for that single 45W panel.
Very happy to be finally self sufficient in electricity.

#solar #solarpower #pv #italy

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A re roofed house sits on a hillside surrounded by trees against a background of wooded hills. There is a large square area of black solar panels on its roof.

#Solar panels are creating an unexpected effect by forming rainfall clouds and thriving oases in the middle of the desert https://www.ecoportal.net/en/solar-panels-are-creating-rain-clouds/19854/ #ClimateChange #Solarpunk

RE: https://freiburg.social/@balkonsolar/116284017037631861

Solarpanels sind da!
Das andere Material haben wir auch.
Es gibt noch Plätze!!
Meldet euch einfach an.

#Teningen #Solar #Workshop #2ndlife #Emmendingen #Denzlingen #Klimaschutz

Ich bin die Diskussion um #Solar und #Gas nicht mehr hören oder lesen.

Solange niemand DAUERHAFT an DEINER Solaranlage mitverdienen kann, wird das niemand außer dir gut finden.

Aktuell gibt es bei Solar EINMALIG Geld für ein paar Händler in der Vertriebskette und den Herdteller+die Subs. Nicht mal der Staat bekommt hier was (abseits zoll evtl)

Danach verdient niemand mehr irgendwas. Für bis zu 30 (DREIẞIG) Jahre.

Im Vergleich verdienen bei fossilen Brennstoffen alle - inkl. Dem Staat(, bzw diverser staaten) dauerhaft mit. Bei jedem Nachfüllen. Von der indirekten Abhängigkeit mal ganz abgesehen.

Als ob irgendwer in dieser Kette es gut findet, dass man 30 Jahre fuck you sagt.

Deren Problem wird schlimmer mit #elektroauto und co.

Critics claim large solar farms are a public health threat.

Despite little reputable evidence for this, their fears have helped undercut efforts across the U.S. to broaden energy sources, slowing installations even as customer costs are rising.
https://www.propublica.org/article/michigan-solar-farms-health-concerns-st-clair-county?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon-post

#News #Solar #Energy #Health #Michigan #Local #Law #PublicHealth

Global growth in solar “the largest ever observed for any source“

The International Energy Agency says we’ve entered the Age of Electricity.

#carbon-emissions #energy #green #renewable-energy #science #solar
https://arstechnica.com/science/2026/04/global-growth-in-solar-the-largest-ever-observed-for-any-source/

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image of a red, dusty scrubland covered in row after row of photovoltaic panels.

Aleppo, Syria. #Solar #solarpunk
Got this sent to me

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Eine Luftaufnahme eines dichten Stadtgebiets mit zahlreichen Gebäuden mit Sonnenkollektoren auf den Dächern. Die Straßen sind sichtbar, mit Fahrzeugen gefüllt, und zwischen den Gebäuden ist Grün zu sehen. Der Ort ist als Aleppo gekennzeichnet.

#solar #mppt #jaktodziałe #pytanie #fotowoltaika #MonsterTrip

Mam baterię akumulatorów AGM 24V, dwa panele fv nominalnie po 100 W / 12 Vi kontroler mppt, żeby to wszystko spiąć. Czy i jaka różnica efektów będzie między równoległym a szeregowym połączeniem paneli?

I've got a semi-permanent #Meshtastic node setup, the antenna is just hung from a hook on my porch. It's run from a little USB supply connected to a 12-volt 12 Ah LiFePO4 battery, which is charged by a 10-watt solar panel. No charge controller. The panel is just sitting on my porch and gets on for about half the day.

It's very simple, and actually probably overkill for this node for the most part, but it's kept it up for more than 25 days.

#solar #SmallSolar

When I tell people what we paid for electricity over the last year (about £1500) they’re astounded how cheap our heat pump is to run. Then I point out that includes driving around 10,000 miles and all our cooking.

I was able to say this to a guy who popped round for some free concrete blocks and asked about the heat pump. Fair to say he was aghast…. Given what he’d just been quoted for a tank of heating oil. #heatpump #oilprice #domesticenergy #solar

To the people who think #wind #turbines and #solar #farms spoil the #natural #landscape; it's worth remembering that some of that landscape (the patchwork of rolling green fields, for example) is itself the visible outcome of #technological advance and they're anything but natural. What about the charming old watermills and windmills that are so symbolic of Olde #England and the #Netherlands? The vineyards of #France and #Italy, the olive groves of the #Mediterranean, or the magnificent hills and glens of #Scotland, that were once the ancient #Caledonian forests, subsequently cleared for sheep and cattle grazing. These too symbolise earlier technological advance. Canals, railways, castles, churches, lighthouses and hedgerows are the same. Once upon a time these too may have been considered a blight on the landscape and yet nowadays they are often viewed as part of our cultural heritage, to be preserved and managed for posterity. A sense of perspective is surely required? Take a closer look at the #rural landscape you think is being spoiled.

#energy #renewableenergy #renewables #renewable #fossilFuels #green #GreenEnergy #WindTurbines #SolarFarms

Fascinating analysis showing how battery storage is now cheap enough that solar coupled with battery storage could “meet as much as 90% of India’s electricity demand at lower LCOE than the average power purchase costs in most states”.

"Using 4.9 GW of solar and 13.5 GWh of battery storage for each GW of average demand … solar-plus-battery systems could supply between 83% and 92% of demand in the ten largest states.”

#RenewableEnergy
#India
#Solar
#Batteries

The UK avoided the need for gas imports worth £1bn in March 2026 thanks to record electricity generation from wind and solar.

Wind generation hit a new record for the month of March on the island of Great Britain, up 38% year-on-year, while solar nearly matched the output of last year’s exceptionally sunny spring.

Reform UK is so out of touch.

#Wind #Solar #EnergyCrisis

https://www.carbonbrief.org/analysis-record-wind-and-solar-saved-uk-from-gas-imports-worth-1bn-in-march-2026/

Y'know, it's actually fun to nerd out about #solar panels. This is what a day looks like when it starts foggy ,then clears up at the start of the afternoon, just as the sun is at its best angle for the solar panels.

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Output curve of a rooftop solar array, with unsteady, slowly increasing output in the morning followed by a neat downward curve from the afternoon peak.

New #blog post: Adding A Balcony #Solar Install to our garage

We've had solar for nearly 3 years now, but our easterly exposure has been niggling at me: output starts waning around lunch so the afternoon feels wasted (particularly after a cloudy morning)

So, I've added some west facing panels to the garage using a plug-in solar kit

This post talks about the install, setting up monitoring with #telegraf as well as results in the week since

https://www.bentasker.co.uk/posts/blog/house-stuff/adding-plugin-solar-to-our-capacity.html

Iran War World News

Pakistan will keep flooding the country with cheap solar power to replace oil. Unfazed by Trump closing Hormuz with his ordinance incontinence.

Uruguay doesnt care

Ethiopia already banned gas cars

Trump PAID a company building a windfarm a $BILLION to stop building.

Oil is forest fires and war
Solar power is cheap

Here's another block arriving, without fees, again.

End oil, end wars, end trump, end billionairism.

#climate #iran #solar #war #oil #billionaires #coup

Wow. 23kWh in March! #solar

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A line graph showing power generation in watts over time in a perfect bell curve. The x-axis indicates time from 06:25 to 16:25, while the y-axis ranges from 0 to 3,000 watts.

Brilliant news! The UK's Labour Government are going to make "plug in solar" legal.

Grab some panels from Lidl, hang them off your balcony or out your window, plug them in to your mains. Done!

https://www.gov.uk/government/news/government-to-go-further-and-faster-in-becoming-energy-secure

#Solar

I also recommend folks check out (and support!) Solar United Neighbors-- they're an advocacy group that helps navigate issues around solar install regulations and they run solar co-ops to get cheaper pricing by having people go solar together!

https://solarunitedneighbors.org

#solar #climatechange

On the plus side, once you've got your solar panels and associated support kit (batteries, inverters, etc...). They do tend to have a very good operating life, and as long as the atmosphere keeps letting sunlight through, will continue to generate power.

Maybe we should all be installing some more solar while the supply chains are functioning...

#Solar
3/3

30 months to 3MWh - some more home battery stats

Back in August 2023, we installed a Moixa 4.8kWh Solar Battery to pair with our solar panels. For the last year and a half it has chugged away slurping up electrons and sending them back as needed. Its little fan whirrs and the lights on its Ethernet port flicker happily as it does its duty.

I estimate that it has saved us around 3 MegaWatt hours since it was commissioned. In monetary terms, that's roughly £1,000 taken off our electricity bills.

How did I work that out? Well, maths is hard, as Barbie knows, so take all this with a pinch of monosodium glutamate.

Here's a typical month - October 2025:

Yikes! What's going on here?

We use a variable electricity tariff. Prices fluctuate every 30 minutes. At peak times our electricity prices can shoot up to 60p per Kwh. Overnight or when the wind is high, prices can drop to zero. Yes, free electricity! Sometimes the excess in the grid means that prices go negative and we are paid to use electricity. Hurrah!

Our battery knows this. Its Internet connection allows it to download the tariff for the day ahead and plan accordingly. If the electricity prices are cheap, the battery fills up. The battery can decide to discharge when we're using more electricity than solar provides, or it can wait until prices are more expensive after the sun has gone down.

Here's an example, again from October:

In October, about a third of the power stored in the battery came from the sun. About 92% was used by our house with the remainder being sold back to the grid if it was profitable to do so.

By contrast, here's June 2025 - a sunny month in the Northern Hemisphere:

Here, only 12% of the battery charging was done by the grid. 88% was done for free by solar power. But because solar was so plentiful, about 15% of the battery was sold back to the grid.

Maths. Is. HARD!

I've been playing around with various charts, graphs, spreadsheets, modellers, and a bit of calculus. I basically came to the conclusion that the easiest way was to assume I was saving the energy price capped value of a kWh.

That varies from 25p to 35p. If I fudge the numbers just right, it rounds off at an even grand.

It's Payback Time

No-one ever asks what the payback period is of buying a car vs taking public transport. You never see anyone amortising an engagement ring over the length of a marriage. Still, here we are.

We paid £2,700 for the supply, install, and commissioning of our battery.

That means the payback time for the battery will be between 6 and 7 years. If energy prices go up, the payback time goes down. Its capacity is showing no degradation yet and I hope it will provide us with many years of savings before it needs to be repaired or upgraded.

Solar batteries are getting cheaper and their capacity is getting bigger - although not big enough to store all my home's electricity.

If you can afford the upfront costs, it's like pre-paying for a chunk of your energy usage and can help protect you against sudden price rises.

You can sign up to Octopus and get a £50 bill credit if you want to switch to a variable tariff.

🆕 blog! “30 months to 3MWh - some more home battery stats”

Back in August 2023, we installed a Moixa 4.8kWh Solar Battery to pair with our solar panels. For the last year and a half it has chugged away slurping up electrons and sending them back as needed. Its little fan whirrs and the lights on its Ethernet port flicker happily as it does its duty.

I estimate…

👀 Read more: https://shkspr.mobi/blog/2026/02/30-months-to-3mwh-some-more-home-battery-stats/
⸻
#battery #moixa #solar

For I think the first day since probably October, we’ve had enough sun to recharge the batteries back to 100% after the heat pump hot water cycle first thing, plus cover our daytime usage 😀

And it’s still only Feb 👍

#solar

Hey, so, if anyone comes across useful information about #Solar, #Renewables, etc. on #USGovt websites, I would make the effort of archiving them on the #InternetArchive. They may not be up for much longer. (I just found some great information about Solar on farms, but I expect that to go away soon...)

#SolarPunkSunday #Censorship #USPol

🔋 Yesterday, a #Solar battery saved @edent@mastodon.social £1.12 by using 3.19kWh of stored electricity.

Total battery savings since August 2023:
💷 £1,013.95
⚡ 3,001 kWh

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

🔋 Yesterday, a #Solar battery saved @edent@mastodon.social £0.83 by using 2.37kWh of stored electricity.

Total battery savings since August 2023:
💷 £994.15
⚡ 2,945 kWh

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

#Solar is inevitable in #California and the entire #UnitedStates - thats why we support Scott Wiener’s Senate Bill 868 https://www.ewg.org/news-insights/news-release/2026/01/california-senator-introduces-balcony-solar-bill-lower-energy

#senatebill868 #solar #california