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I just left a similar comment. We were probably composing a the same time. Good point about the possibility of a roof leak and placing blame. I didn’t think of

I just left a similar comment. We were probably composing a the same time. Good point about the possibility of a roof leak and placing blame. I didn’t think of that.

35mm 2y ago
You can get flat cables for solar DC wiring designed to pass through the gap in a closed window: https://es.ecoflow.com/products/super-flat-cable?currency=EUR&variant=46772169736539 https://es.ecoflow.com/products/super-flat-cable?currency=EU...
hinkley 2y ago
Years ago I fantasized about making a transformer designed to pass through a window. One coil on the outside, one on the inside. Unfortunately I don’t think you can split the core of a transformer and still get anywhere near the efficiency Also more recently I learned that these things can vibrate. Which would not be good for a window. You’d be better off passing a wire ribbon around the sash.
- Animats 2y ago
  Split transformers for power transmission exist, but are rare. Here's a 3 KW system used for non-contact charging of electric forklifts, industrial mobile robots, and such.[1] 93% efficiency claimed. Probably not worth the trouble just to get power through a window. [1] https://www.wiferion.com/us/ https://www.wiferion.com/us/
  - hinkley 2y ago
    Witricity is trying to do the same with electric cars.