What are the options for video surveillance of remote sites?

Question

Yota

Such cases: there are 20 electrical substations, which are scattered over an area of ​​~ 10 km2. The distance between substations is in kilometers. And all this is located in the forest. Within the city, but substations are surrounded by tall poplars. We need video surveillance of substations with stacked cameras in a single place. Options:
- Wi-fi sends immediately. No line of sight, dense foliage
- Optics. The same. If only to throw it over poplars)
- 4g Yota. So far I see an option. But the following is confusing: as I noticed, the same yota cuts traffic around the city very much (the scene is Krasnoyarsk). The speed in the city is about 1Mbps. There is an idea to rent a vps in Moscow and organize communication through it. But here is another ambush from Yota - VPN speed is cut. Does anyone have experience organizing video surveillance through Yota
- 4g Megaphone. These do not cut the speed in the city (well, or not so much), but they do not have an honest anlim - a maximum of 15GB. Then the task of saving traffic arises. You can see the transmission (reception?) of the video stream only in motion. But the search for such an option did not give a ready-made solution. Did you search badly?
- PLC (Power line communication). This seems to be from the realm of fantasy? Technology of data transmission by electric wires. I did not find the possibility of technology. Has anyone used this in industrial settings?
- Satellite. It seems to me, or will 20 satellite dishes on abonentska download under 0.5 cartoon?

Answer 1

Do you understand that one camera per day will pump 50GB? Any mobile operator will send you nafig during the first month of operation.
I would discuss with wired providers present in the area (if I understood correctly about the city limits), the possibility of driving traffic through their networks. For them it is less expensive, they often agree. This is how safe cities are built.

Answer 2

How did you solve the problem with video surveillance?