This is more down to Octopus than the system.
I managed to switch swiftly to their Flux Tariff for leccy, but the export didn't kick in for several days. And then the lunchtime of the first day it was active, they changed my meters.
Since then they have got the Import set up lovely with the new meter, took a day or so to synch, but this morning was my third email asking why the export meter still has the old meter serial number attached (and no readings since the changeover). Their response is "we'll look into it and get back to you", which they fail to do.
The gas meter finally went Smart last Thurs, which meant I could finally compare the costs of gas vs leccy for heating the water tank. Sadly when this happened they stopped taking leccy readings, although yesterday the situation was reversed again, and all the smart data for the gas is no longer accessible. {Spoiler Alert, I think leccy is cheaper].
Regarding the system, that started dropping connection to the internet on Saturday. I connected to the inverter and reset the password and it was fine, but drops off again a couple of times a day. I needed a wifi booster to reach the garage where the gubbins are stored, and switching this off and on restores the connection. I expect when I call the installer he will blame the wifi repeater. The good news is that the system seems to store several hours of data, so when it does reconnect it fills in the gaps.
Performance has been good, with a 4kW East/1.2kW West arrangement. We get a great sunset here, however the panels seem to be designed to perform much better when lit from above rather than the side. Alternatively the low sun could be more susceptible to cloud or atmospheric degradation. Output for the 27 days has been 370 kWh, of which we've used 240 and given away 130
![Sad :(](./images/smilies/icon_e_sad.gif)
The worst day was last Fri when the solid cloud gave a measly 2.2kWh, but other than that there have only been 3 days when it produced less than our consumption (usually 9-11kWh/day) and on one of those the battery filled nearly all the shortfall.
Ignoring the 3 dull days, our import is still about 0.3kWh/day. Again a learning process, the Inverter can produce 2.5kW. So putting the oven on and the sun goes in means a bit of net import, similarly putting the kettle and the oven on together will easily create import. Once we're being paid for export this will become less relevant, but I tend to stagger the oven/kettle/microwave at the moment, just out of principle
![Smile :)](./images/smilies/icon_e_smile.gif)
I have reduced the Gas HW to 1 x 30 min first thing in the morning, and in the afternoon I wait until the battery is (nearly) full and hit the 30 min boost on the immersion heater. This tends to run only for 10-15 min depending upon what we've used during the day, and as long as the panels are pumping out 1kW (which even watery sunshine will provide) then the battery supplies the rest.
Onwards and onwards I guess.
Paul