If you have not seen this yet, Supla is developing a solution to read meters with a camera. The product is coming from Ergo Energia.
There is a test period for the device, if you want and maybe still can to join in:
https://forum.supla.org/viewtopic.php?t=15840
(Also this is topic as a placeholder for the future released product.)
Further link to Ergo Energia’s website:
Urządzenie do zdalnego odczytu analogowych liczników wody oraz prądu.
Na zdjęciach “Urządzenie w akcji” nie ma żadnego licznika prądu, same liczniki wody, na których łatwo zamontować to urządzenie.
Trzymam kciuki za projekt 
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I would assume, it is meant for rotary analog electricity meters. Not so many of those are around, except @artpc’s one. 
The idea is good, especially the mounting. I would like to get my hands on one and use it with AI-on-the-edge rather than Supla’s servers with a AI model. I hate cloud services for IoT equipment.
Yes, I am a fossil. 