It is great weather for producing our own power. We had solar panels fitted almost a year ago (see here).
We used the washing machine and the electric lawnmower at the same time in this hot sunny weather - for free.
Quite expensive to install (though much cheaper now than just a few years ago) we consider it money well spent. The same money in the bank would earn next to nothing at present. On the roof it brings us about £500 per year, and reduces both our electricity bill and our carbon footprint, and will be recyclable at the end of its useful life, about 25 years hence.
It just feels like a good thing to do.
And watching the electricity meter going in reverse is a very nice sight!