We had a four hour electricity cut a week or so ago that affected many developments in my area, including the Lagos Marina restaurants. The power came on again after we went to bed and the next morning I noticed a green flashing light on our bedroom aircon. A further check revealed the same problem with two other units. A technician came today and said the surge when the power came back on has blown the motherboard in the main motor. I’m thinking this is the fault of EDP and wondering whether I can make a claim against them, as the repair is going to cost around 1,000 euros. I have home insurance so if EDP is a non starter will a claim such as this on my home insurance affect my future payments?

Yes ,you can ,a friend had a power surge and it took out his main board on his central heating plus a couple of other things ,Bill all picked up by the supplier.

I had a similar thing; it was a computer power supply.
EDP refused to pay, saying it was impossible for a power surge to damage a power supply; actually, I'd made several complaints about over voltage before. I often got 250V and a couple of small transformers had melted in the past.

My home insurance did pay for it, but of course there was a process. That's why you pay for insurance, right?

EDP has replaced the supply transformer now, and the voltage is correct mostly; although, all my machines ran backwards after they did their work.

It took weeks and weeks to get the aircon motor fixed as several things had blown due to the power surge. In total it cost 1,300 euros to get it fixed and I sent a message to EDP saying I needed to make a claim.

They came back and said that it wasn't their problem but that of E-Redes, the company that actually generate and supplies the power. So, I went onto their website and provided all necessary information and also a copy of the invoice to get the unit repaired.

I've just received a reply from them to say that they do not assume responsibility for the damage as there were n anomalies to the system on 25 November last year.

This of course is total rubbish, as a large area of Lagos lost power for about four hours that night including restaurants and hotels as well as residential units.

Question is, what do I do now?

Make a claim with your home insurance.
They'll probably actually pay; E-redes won't, even though it is (literally) their fault.

I tried that but as I have the standard (required) bricks and mortar insurance and not contents insurance I was told no.

You might be out of luck; you could try the infamous "complaint book". I've never done that myself, but people say it sometimes gets results.

I had multiple power surges, including continuous over-voltage (280V).