Thanks for your question!
The average number of people on an outstation can vary, but you can expect between 5 – 20 people on a site. Instead of framing your solution around the number of people on outstations, you could think about power requirements in terms of power consumption. For example, the same amount of lights, fans, fridges etc would be in place and the power usage wouldn’t shift too greatly with additional people.
I’ve linked some previous questions and answers from this forum below which give additional insight into how to think about the power requirements for your mobile solar system which you might find helpful
Mobile Power Supply Challenge (Design area 4.2)
Mobile Solar Power Supply
Please reach out if you have any further questions!