Interesting discussions...
We own a power station, only produces 4kWh max, and averages about 9kW/day. Still, every little helps!
We have changed all lights to LED where it is possible, but still have a few incandescent QH capsule bulbs in things that are too small to take the LED equivalent. Also a few fluorescent units, but they are all marked for replacement!
The car paradox: we have 3, the V8 Morgan, averages 24mpg. The v6 Turbo Diesel Merc averages 33pmg because of a lot of short trips. The inline 4 cylinder supercharged 1800cc petrol Merc averages 38mpg....
So, the Merc is the least fuel efficient and most polluting....should I replace it? In a perfect world yes, but in my world, no. It is bought and paid for and worth only about £12K. Replacing it with a petrol hybrid would need me to find about £35k. That is a lot of diesel..... and i'm not sure about either the charging infrastructure or the green credentials of electric cars.
So, short of a lottery win we will stick with what we have.