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Are there solar powered window blinds?
(sh.itjust.works)
Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io
In Germany, yes. I think they are selling them worldwide.
https://www.velux.de/produkte/sonnenschutz-und-rolllaeden
They are pretty reliable, with a builtin oversized battery and small solar panel, remote control, and 5 years warranty iirc.
They offer an integration into smartness - I can look up for you later which one.
I am planning currently to get some, but without their solar, just normal power and my own smart relays to control them.
I use their blinds and windows with a Velux KLF 200 gateway. They work fully localy with homeassistant. Can reccommend.