Import and Export meter overloading - is it possible?

Question

I had a large electricity supplier install solar PV and battery system and the import meter melted followed by the export meter. 
 They are stating that it is my issue and not there's as I have overloaded my consumer unit. 
 The import meter was rated to 100A 
 The export meter was rated to 100A 
 My incomer is protected by an 80A fuse 
 My export meter is on a supply protected by a 50A MCB 
 They are saying it is not their issue and I will have to go through the Ombudsman if I don't agree with their report. 
 How do I deal with a large company that refuses to take responsibility for faulty workmanship.

mapj1 · Accepted Answer

indeed and I'm not too clear what section is protected by what, 
 -but as described I'm struggling to see 
 a) how they think you have overloaded it 
 b) if that really is what they think, why they designed you a system that could not handle the likely current. 
 And more likely if the neutral is burnt but not the live, that is a classic 'one loose screw' issue - both sides should look equally cooked as they carry identical current. 
 M.

Simon Barker · Answer

If the damage is small enough to come under the small claims process, then you shouldn't need legal experts and won't get reimbursed for them. What you would need is an independent export report. Of course, you'd add the cost of that to your claim.

gkenyon · Answer

Simon Barker said: If the damage is small enough to come under the small claims process, then you shouldn't need legal experts and won't get reimbursed for them. What you would need is an independent export report. Of course, you'd add the cost of that to your claim. 
 Agreed, although if not involving legal professionals it would be up to the Claimant to consider the risks of not being successful.

Simon Barker · Answer

Andrew Smith 323 said: How do I deal with a large company that refuses to take responsibility for faulty workmanship. 
 You get an independent report to say that the installation was faulty. I'm not sure the usual Energy Ombudsman would deal with a case like this. It could have to go to the civil court. 
 On the subject of installation quality, why is there an ELV cable rolled up and shoved next to an LV cable, with no segregation between the two?

Import and Export meter overloading - is it possible?

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