People putting a couple panels up on their patio or whatever and having it charge one of those cooler sized batteries that they then run a few of their devices off of.
I've been thinking about a similar situation for my shed as I'd realized that the entire system would be cheaper than getting a line trenched to it.
[–] nsbk 2 days ago
[–] tbdenney 2 days ago
[–] nsbk 2 days ago
The SolarFlow 800 Pro goes for around 500 euros, and good quality solar panels for ~120 each. ~100 for the power meter and ~70 for the brackets to install the panels on. Oh and maybe ~40 for cables.
You can also use the battery as a massive power bank with a 240V outlet on camping trips xD
[0] https://zendure.com/products/solarflow-800-pro [1] https://shellyspain.com/shelly-pro-em-50.html
[–] w3ll_w3ll_w3ll 2 days ago
The inverter is smart enough to disconnect from your line if you are not consuming energy, so there is no risk of sending the power back to the distribution line.
[–] tialaramex 2 days ago
I expect what you're talking about is anti-islanding and so it's not interested in what you're consuming locally.
The anti-islanding works by detecting whether it can make a noticeable change to the constant 50Hz (or 60Hz depending on country) AC waveform, if it can that's an artificial waveform made by itself or similar devices in the neighbourhood and so the anti-islanding protection stops delivering power. But if when you try to change the waveform it won't budge, that's because there's say 10GW of much beefier power sources out there keeping it the same shape it always was, so it's OK to generate electricity.
[–] linsomniac 2 days ago
[–] nsbk 2 days ago
Just kidding, I know what you mean. I actually started with true balcony solar and evolved into the battery+inverter setup and couldn't be happier
The system is quite smart, it charges the battery up from the grid when electricity is cheap and discharges during peak hours. Legally it’s limited to 800W, but you can set it up to a much higher output.