Why I get a voltage drop from my solar panels on the early morning and late evening

[moggy1968]

Re: Why I get a voltage drop from my solar panels on the early morning and late eveni

as above!! You need some one to visit you.

looks like I am barking up the wrong tree then with start up voltages

 

[stodsy]

Re: Why I get a voltage drop from my solar panels on the early morning and late eveni

do you live in a rural place if so the transformer in your area might need tweeking get in touch with the dno you can buy a vphase transformer for your house this will help as well

 

[Earthstore]

Re: Why I get a voltage drop from my solar panels on the early morning and late eveni

do you live in a rural place if so the transformer in your area might need tweeking get in touch with the dno you can buy a vphase transformer for your house this will help as well

It will not help with the PV, the PV has to be connected in before the voltage optimiser.

 

[cham cham]

Re: Why I get a voltage drop from my solar panels on the early morning and late eveni

Do you have space on your roof for more panels? I wonder why the previous owner didn't max out?

I think you need to identify the original installer (if they are still trading) and politely request a site visit to discuss the issues. They should have registered the installation with Building Control at your local council. You should also have an official MCS certificate which gives their name. Surely you got some paperwork about the PV system when you bought the property? If not, it might be worth discussing with your solicitor/conveyancer.

If you tell us where in the UK you are located, someone from this forum might be able to offer assistance.

Thank you for your reply
At the moment I can’t afford to replace the inverter or add more panels I just move in as you know of so many expenses to word the house but I did contact the solicitor he said he is going to come back to me when he hear from the previous owner. I don’t have any contact detail of the installer with house paper. I hope he did not install it himself. I did not new that I should have the paper work for the solar panel installation.
For the time been I just turn it on the DC half an hours later in the morning than it should start and I turn it off the DC half an hour early than it should stop in the evening With no problem. If there is any other better solution than this I love to hear it. I may turn it off all together until I got fund to get an electrician to repair it or upgrade.
I don’t think it anything wrong with the inverter because it works absolutely perfect during the day. Not even turn off once. I think this inverter is over power if I add more panels I think this problem may disappear. When I check in the Fronius Configuration Tool. I should have connected 11 panels 245 watts instead of 8 panels at the moment. what will be the maximum cost to fix this problem? I mean just the labour cost. So I can call someone at the right time and not been charge too much for the this job Thank you

 

[moggy1968]

Re: Why I get a voltage drop from my solar panels on the early morning and late eveni

It's not as simple as just adding some panels, your system has been registered (possibly!) as is and any new panels have to be registered separately. This isn't a DIY job. you need a qualified, and reputable, installer to advise you, which most that fit that description will be prepared to do with no commitment and may be able to advise you on your current install. As I said sometime ago, you need someone to see this in real life.