No. This post is not about smoking, although I’m puffing away while I write this.
I’ve just been delving around on the internet, to see if I could see the benefits of fitting a photovoltaic solar panel to my roof. You know saving the planet etc, etc,
And here’s what I’ve come up with:
Initial fitting would be £12,000 for the fitting of the panel, wiring, and installing an inverter. Ok, fine.
Expected overall saving per year is calculated at £839. Calculated for the South of the country. If you live in Scotland, then the figure drops to £716.
Looks jolly good I hear myself think. (All figures calculated for me by The Energy saving trust).
Now for the twist.
The panels are expected to last for 20 years, but at the end of their life will only be capable of delivering 80% performance. (The calculations are based on 100% through life output).
The panel will require cleaning on a regular basis. in my case I’ve based it as every two years due to the Oak trees across the road, and the numerous pigeons we have here for some strange reason.
Now seeing that I have a three story house, H & S decree that work on the roof requires scaffolding in my area.
Lets throw in £200 for that (Most likely double). Therefore after 20 years the cost in total will be £2,000.
Inverters burn out in time. Well the good chaps at MugsRyou, installed a top of the range model that lasts 10 years. So I’ll only need two of those. £1000 a throw.
The upshot of this long rambling story is that it will take me 19.07 years to break even. That’s if the panels deliver that 100% for the whole period and we actually get some sun.
Mind you I expect I’ll have long died from a smoking related disease by then.
Did I mention smoking? Oh dear.
Wind turbines anyone?