This whole system was about £16k, which seems a lot, but it will pay for itself over about 11 years. We could have had less panels, but they reckon having more will shorten the payback time. Having the battery means we don't use any grid power some days. I just used some battery power to heat up the water. I think some people have a battery and no panels so they can take advantage of off-peak prices.
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Did they talk to you about cleaning and maintaining them? It might not be the case for your ones, but I watched a video and a guy showed that when he put his hand on the panel, or even a leaf the efficiency dropped a lot, so he stressed that they need to be cleaned to get their full potential.
It's cool that they work even in cloudy whether, so you'll really notice it when the good weather comes in.
It is a fair bit of an investment, but the money that you'll save makes it well worth it.
Cleaning wasn't mentioned, but I will look into it. Some window cleaners have really long poles, so I expect they could do them. Dust and bird crap could build up. I expect there are forums for solar owners. I posted in a Hive solar community, but it's not very active.
Yeah a squegy on a pole should do the job. It's well worth checking it out yourself anyway man, your ones being newer may not have the same issues, the video I saw was from a few years back.
Our electricity is fairly expensive. The last crowd we were with was about 50+ a week with the charges and all, but we're with another crowd now and are being charged about 400 every 3 months. It would be great being able to cut that bill down a bit though.
The prices are way up on a few years back. This gives us some independence from price rises. It's worth looking into.