Looking for some advice from anyone with a FoxESS battery system and a legacy UK FiT installation.
My setup is:
* Fox ESS H1-3.7-E-G2 hybrid inverter
* Battery storage system
* Original PV installation was on the Feed-in Tariff scheme
* Original generation meter was a Landis+Gyr 5253B
The original generation meter worked perfectly for years before the battery was installed. After the battery installation it started giving incorrect generation readings (possibly because charging/discharging activity was being counted in some way).
Following discussions with my FiT provider (E.ON), I was advised that a bidirectional meter was required. My installer replaced the Landis+Gyr with an Emlite ECA2.NZ bidirectional meter.
The ECA2.NZ appears to be correctly installed in the same position as the old generation meter. The installer has checked the wiring and CT clamp orientation and says everything is correct.
The meter currently shows:
* Import: 383.3 kWh
* Export: 141.2 kWh
* Net: -242.1 kWh
I have been submitting the NET reading because that was the reading requested by E.ON, but my FiT payments have now been suspended because the NET value is negative.
What I am struggling to understand is:
1. Is anyone else running a Fox ESS H1 series inverter with batteries and a legacy FiT setup?
2. Are you using an Emlite ECA2.NZ as a generation meter?
3. Which register are you submitting for FiT purposes?
4. Did you have to replace your original generation meter after battery installation?
5. If so, what meter was ultimately accepted by your FiT provider?
6. Is your FiT provider accepting inverter generation readings, or do they insist on a separate physical generation meter?
At this point I am trying to establish whether the ECA2.NZ should be capable of providing a valid FiT generation reading, or whether I actually need a different metering arrangement altogether.
Any experience from people with FoxESS hybrid systems, battery retrofits, installers, or anyone who has dealt with FiT generation metering after battery installation would be greatly appreciated.