It takes time to get your head around having your own solar power.
Our PV roof panels were switched on three days ago and we have already generated (…gets up to look at the meter behind him on the wall…) 57.1 kilowatt hours. That’s much more power than we have used in that time. That’s a lot. Much more than I imagined.
Our system has a little bonus gizmo so that when we are not using all the power we generate (most of the time) the excess is fed automatically into the immersion heater in our hot water cylinder. So we switched off the gas boiler when the PV came on stream and we still have piping hot water for showers each morning. (That means zero energy cost, folks.)
But the thing which is so novel and which takes some really believing is that during the day we can use as much hot water as we like and there is absolutely no cost whatsoever – not to us and not to the planet: we are just using the heat from the sun that would have fallen on that part of the roof anyway.
Why isn’t everyone doing this!
Another thing: When the energy performance certificate for our house was done just six months ago the assessor estimated that a 2.5kW solar array would cost future owners (i.e. us) between £9,000 and £14,000. In fact our state-of-the-art array, installed with meticulous care and attention to detail last week, actually cost us £6,500. And it generates 4kW, getting on for twice as much as that estimate, for less than half the price.
Bottom line – even the experts have not understood how quickly solar power is becoming hugely cost effective.
And our bottom line is the profound satisfaction we are getting. We even have a new electric lawnmower, which – wait for it – gets used in summer and always during the day – isn’t that just beautiful.
Our system was generating 1kW at 8.00 this morning and 1.3kW at 6.00 this evening. And it is early April in supposedly dark and dreary England. Isn’t that beautiful too!
Oh yes, it peaked at just over 3kW. Eight panels on the East sloping roof and another eight on the West.
Am I becoming a bore? Not to me. It’s wonderful!