Our PV solar keeps shutting down as the DNO supply via Last Mile Asset Management is goving over voltage i.e. over 230V +10%. If the grid exceeeds 253 V the pv solar is not legally allowed to export.
It has happened before , they denied it but mysteriously it was sorted.
On the Money Saving Expert forum it seems quite a common issue.
Are others on here having / had the same problem & how did you fix it?