Mastodawn

RE: https://floss.social/@supertobi/115563987260962202

Nov 17

FYI for German readers of @fedihouse

Upcycling Houses Nov 9

Nov 9

Put battery in basement or garage. Book hourly rated electricity contract. Optionally add solar panels and switch to heat pump.

Charge battery when electricity price is negative or very low. Automatically switch to battery power when price is above defined threshold or battery is full. This approach might pay for itself over time. Has someone already tried this? Made a calculator? I am sure some of you did ;) @fedihouse

mike morris Nov 2

@jwildeboer @fedihouse
For clarity, most/all of the Deye inverters are cloud-optional and grid-capable (but not necessary).

@fedihouse And before you suggest devices, please make sure you know they work without internet connection. Ideally from experience. Throwing devices around that you've only heard of but not used isn't really helpful :) I am collecting devices that fit the requirements in an issue thread at https://codeberg.org/jwildeboer/fedihouseMirror/issues/2#issuecomment-8046989 where you can also add yours, if you prefer it that way.

Offline but not off-grid solar chargers/inverters

This issue should become a collection of solar chargers/inverters that do not need an internet connection to work. That do not send data to untrusted places. That cannot be switched off remotely by hackers or state actors.

Codeberg.org

mike morris Nov 2

@jwildeboer @fedihouse Victron inverters are, in my experience, noisy as hell. I would not have one in the house — would want it in an outbuilding or somewhere reasonably sound-damping. Models in EU may, of course, be different (I'm in S Africa).

I have a 5kW Deye inverter, and I've only ONCE in 2½years of operation even heard it at a whisper when we had it under near-max load. My setup is completely off-grid and not networked in any way.

@fedihouse Not very surprised to find out that such inverter/chargers exist in quite a few niches. The marine sector, for example, has a need for such configurations. On-grid when harbouring but offline on the sea. Also: RVs.

@fedihouse If you know (from experience) about similar devices that charge and feed power without phoning home all the time, feel free to add them to this thread. I will collect them on a page at https://fedihouse.eu

Fedihouse

Fedihouse — upcycling houses with a Fediverse approach. Open Source, Open Hardware, Renewables, Accessibility. Sharing experiences, knowledge, lessons learned and new ideas.