House consumption matches solar

Hi All,

First list so be gentle.

I’ve had solar installed a week ago. We have

GivEnergy 5kw inverter
GivEnergy 9.5 battery
16 panels (400w each)
Solar I boost

Somethjng isn’t right with the recording of the solar generation. On a sunny day they system is generating above 5kw but the house loads tracks with the generation and the app and online portal both say the house draw is around 4.8kw.

There is nothing on if significant load in the house to cause this but the trend keeps occurring.

When the battery dies then decide to charge, it will charge at about 2.4Kw and the remainder is reporting as on house consumption.

I’ve turned the iboost spur off incase that was pulling excess but it’s made no difference.

I should note that the house does have 3 phase power with the solar connected to the first phase. Only the first phase is used in the house with the other 2 spare. The breakers for those are turned off so nothing is drawing from them.

I’m in contact with my installer and the sparky is out on Monday but I just wondered if anyone had experienced something like this.

I’m sure it’s wired wrong and the solar generation is being incorrectly identified as house draw. The ct clamp is on the L1 cable between the meter and breaker.

Thanks

Neillfleetwood01 Just check the clamp is on the right way around. There's no end of posts here that the installers forgot the pointy end of the arrow points to the consumer unit (i.e. grid power IN).

When my system was installed we had a problem with arrows on ct clamps, it confused everybody.

There were a batch that had been put together incorrectly, the magnets had been put in backwards so the arrow on the casing was misleading!

I had same problem. Because the installer was putting clamp on the wrong cable. To save his confusion he ended up putting the clamp on the cable very close to the electric meter so there was no doubt

Thanks guys

I thought it was the CT clamp too. It was directly under the meter with the arrow pointing towards the consumer unit. As it’s 3 phase the live actually goes to a big breaker box first then to the consumer unit but it is in the used line.

With the clamp here it is giving these readings so I turned it round so the arrow was pointing to the meter, it didn’t seem to make any difference, the house load was still matching the solar generation.

The clamp is currently on the l1 with before the meter now as this has more space around it as I thought the clamp might be getting interference from the other wires as it is quite tight by the meter.

Or the clamp might be faulty, who knows