What are any of you using for power? I know we have generators, battery banks and solar banks. Any reason for your choice of power? Anyone using a combo of all 3? That would be interesting.
Each power source has its pros and cons. Unfortunately, you can't use them all in the same system. All electrical components have only one power input, meaning you either use a generator or a solar panel.
The main advantage of a solar panel is that it requires no maintenance—you just plug it in and forget about it. However, it produces exactly half as much power (using quality 6 batteries) as a generator.
A generator produces more power and is easy to assemble, but it must be periodically refueled. The amount of fuel consumed will depend on the load connected to the generator.
Batteries. These are primarily needed when using solar panels, as they don't work at night. They consume 5 watts when charging, but if there's input power, they won't supplement the generator's output if it's insufficient. They only charge when the power source has surplus power.
Which one to use depends on many factors. When playing on a server, I only use a generator as a last resort, since the server runs regardless of whether I'm online or offline. In single-player, it's the opposite, since elements become available for purchase quite late in the game, making it much easier for me to make a generator.
I hope the developers will rework the electricity system sooner or later. I'd like to see a similar implementation to Factorio, where I can combine different sources and they work seamlessly.