What Energy Source would be great for a new planet and takes up as little space as possible(For the Generator)?

Also, How big would the plant/generator be?
Also, how big would the generator be?
I have chosen to go with Solar power. Correct me if I’m wrong – All you have to do is place the panels on top of buildings, and the sun does all the work. (There is only about 100 people colonizing the planet). I only know little about solar power, so info on how it works etc.. would be great
Pls Answer
Thanks 🙂

what do you consider to be the greatest challenge in mineral supply and demand for the current century?

What are substitutes for Inverters?I would like to know the alternatives.Wat should worry Inverter business?

What poses threat to Inverter businesses?
Well I’m analyzing the inverter business and I want to look into substitutes which pose threat to the inverter business.

To make myself very clear.
For example the business was chicken industry then mutton,pork,beef and fish could be considered as substitutes..

@krk: u r right uninterrupted power supply is definitely a threat but I am looking into products.

how to instal a portable home gasoline operated backup generator through the main electric feed line?