We had them installed in September, MM.
Most older installations have 16 panels, but we have only 12, as modern ones are more efficient.
We are lucky in that the back of our house faces due south, so optimum performance (apart from one darn horse chestnut tree!
)
Overall cost was £6.1K but that included de-commissioning our existing solar thermal panel system wot terminally malfunctioned.
If you get a quote, make sure it includes scaffolding costs .....
Add-on: We have an "Immersun" which takes any excess electric we're generating and uses it to heat our water.
Anything still left over then goes to the National Grid.
You can get paid for that under the Smart Export Guarantee Scheme, but there are hoops to jump through (well, certainly with EonNext
) before that happens.
We will look at it, but we are waiting on our MCS (Microgeneration Certification Scheme) paperwork before we tackle that.
We looked at battery storage so we could "store" energy for night-time use / electric car charging if it was ever needed, but the initial cost seemed too expensive for the use we'd get out of it.
That has to be "horses for courses"; depends on your individual circumstances.
Seemed easy enough to erect, took them 1 1/2 days on the roof, but we had a week's wait for the electrician to come and fit the final equipment.
The control panels are in the garage, on the wall. Looks a bit like Mission Control, Houston.
There's even a Big Red Knob we've been told not to touch ...
Early results: Caught it happily generating 3.6Kv (maximum output of inverter) on a sunny day, but down to say 200Kv on a rainy day.
This time last year, our electric usage was (31 days to 17/10/2021): 4.97 units per day.
Since commissioning the solar panels it's been (27 days to today): 2.25 units per day.
If you do go ahead and instal them you will find, however, that you revert to a sort of medieval rural existence!
For example:
Up at the break of day, and if it bodes sunny, out with the hoover!
Oven use: We've moved our main meal from 6.00 pm to mid-day.
Mobile phone charging during daylight hours only.
Etc.