Tesla Powerwall 2 and Solar PV in the UK [54]: April 2024

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A report on our property's electrical system, which includes two solar arrays and two Tesla Powerwall2s with Backup Gateway, for the month of April 2024.
This video includes some further information on my interaction with EDF about the smart meter which was installed in February, with issues still not resolved.
The 3.92 kWp SW array was installed in October 2011 on the roof of the house which has a pitch of about 30° to the horizontal and azimuth 227° M.
The 3.05 kWp SE array was installed in January 2020 on the roof of the garage which has a pitch of about 60 degrees to the horizontal and azimuth 137° M.
The first Tesla Powerwall, which has a nominal storage capacity of 13.5kWh and maximum continuous discharge rate of 5kW, and Gateway 2 were also installed in January 2020 in the garage.
The second Tesla Powerwall2 was added in November 2023.
The property is served by a three phase grid supply, rated at 100A on each phase, via a smart meter which replaced the old meter on 8th February 2024. We are currently on the EDF GoElectric Overnight tariff for EV owners, which has a low rate from midnight to 5am GMT (1am to 6am BST).
A single phase zappi car charger was installed in the garage in April 2021 and a fully electric (BEV) car arrived, two months later than expected, on the 28th of May 2021.
The property consists of a detached house and an annexe (a Studio flat above the garage) and the figures shown cover the electrical activity in both residences. The usage is high in the winter due to the annexe being heated by two electric storage heaters, and this cost is covered by the rent paid by the tenant but is included in the figures in the video as it is not possible to exactly separate the electrical usage of the two residences. The main house is still centrally heated by an oil boiler.

Опубликовано:

15 окт 2024

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Комментарии : 5

@R-T-F-M 4 месяца назад

Now you have a smart meter I would move over to Octopus Energy. I’ve also had nothing but problems with EDF.

@salokin1 4 месяца назад

I'm waiting for an explanation from EDF. It does not affect me much financially ... just annoys me that the numbers don't make sense ... but would affect a higher grid user's pocket more. I'm locked in to the tariff with a high exit fee so need a good reason for them to "release" me without penalty. The Octopus website suggests that the in home display also doesn't show the proper information for their similar tariffs, and instead directs the user to their app. I intend asking Octopus at an appropriate time how they would deal with the timing of the Contactor switching. The 6 hrs with Intelligent Go looks fine: 4 hrs wouldn't be enough.

@brianrussell6988 5 месяцев назад

It’s sad that the newer “smart” technology doesn’t simply work as it should. Hope you get the issue resolved quickly. Brian

@salokin1 5 месяцев назад

The smart meter itself is VERY capable and flexible, but it needs to be programmed properly if the consumer is to see the information that should be available on site: mine shows me nothing more than the total energy consumed. It seems to be sending "sensible" (i.e. what I'd expect) half hour figures to EDF, although I can only see 2 decimal places in the app, but I have no idea what the EDF system is doing with the figures to generate the inflated daily cost on some days and thence the monthly bill.