Not op, but a nuc idles around 5 watts, and at load can use up to 100 watts depending on specs. A raspberry pi4 idles somewhere around 3.5 watts and at load is still under 10 watts.
I second the Synology, I currently have a 2 drive version setup as raid 1 with 3TB drives. It was super easy to set up, and I haven’t touched it in about 5 years now. Set everything up how I wanted and it’s worked flawlessly ever since. Granted, I set it up for myself, not for anyone with an aversion to technology. I much prefer to have a large amount of my data under my own control, plus I get to keep full resolution photos, videos, etc. without worrying about running out of space.
Plus transferring data over a home network is so much faster than through an ISP (at least with what’s available to me).
10F is quite large from a chemical stability point of view.