Help a girl with her electricity please?

[River Song]

Well I'm good at some things but I can't quite get my head around power and I think I've made some duff purchases.

I know that UK voltage is 230-240v AC
I know that car and leisure batteries are 12V DC
I've got an inverter that turns 12vdc to 240v AC 1000W

Now help a girl out here will ya.
What is a WATT
What is an AMP

My inverter is 1000W
My hand cranked battery backup gives 240V at 100W

My eventual idea is NOT to run a whole load of 240V equipment
but standardize on 12V DC kit. Should I buy half a dozen/dozen car batteries, tie them up together, and then charge them from a solar (pretty useless in the UK I would have thought) - or generator??

Ideas please peeps!


Thanks