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Please can someone help me understand what’s going on?

Posted: Sun Oct 18, 2026 2:40 pm
by JBL99
I have a legacy Feed-in-tariff system that has been working successfully without any issues since 2011. Recently I have added a co-located battery storage system consisting of a 5kWh Fox Hybrid Inverter H1 G2 and two Fox batteries that store approximately 20kWh of energy. These are charged overnight on my EV tariff and are supplemented throughout the day with any surplus solar. That is all working fine.

However, and this is where I need some help please, I am only required to supply my FIT provider with my quarterly generation figure from my solar panels. This has historically been provided by my old Landis Gyr E110 generation meter that only had one figure to submit. I have been told that this meter had to be changed for a bi-directional Emlite ECA2.NZ meter and that this was going to provide me with my NET generation figure. This has now been in for several weeks.

My questions that I need some help with are:

1. Why does the App show a daily PV generation figure, that from my years of experience monitoring my solar panels, looks approximately correct each day, but the new Bi-directional NET value bears no resemble to this number, not even close, or consistently within a certain %. It is significantly lower than the App shows for generation.

2. Why can I not have a single generation meter wired in AFTER the inverter but BEFORE the storage batteries, to monitor generation only, as it is clearly possible for the App to measure only PV generation, which is what I’m required to supply to my FIT provider.

Any answers you can provide me, would be very much appreciated. Thanks JBL