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The Powerwall is covered by the Fleet API, but at least for the moment it is not a requirement. I wouldn't be surprised if that changes at some point though...

Not yet had to worry about the 'Fleet' API as I'm not trying to connect to a Tesla vehicle at this time, just the PW2... So I'm using the standard Tesla Powerwall integration and the Tesla Custom integration just for setting the battery reserve. The only bit that needed a little effort was...

Easy enough to fix, some suppliers are already only allowing customers to get a lower tariff rate for the power that actually goes to the EV, not the entire home consumption. So you'll have a choice, use the granny charger and pay the full tariff rate, or get the reduced rate but have the tax...

The APR on my Model S from 2018 was only 2.5%, not sure there was actually room for any commission on that...

There was also an API change, so I'd guess we are in for a few days of fixes to correct the problems they have introduced.

The availability of the extra slots outside the low-rate period does seem to vary a lot between customers and regions, but I do get a lot of early morning slots where IOG is preferring to charge up to 08:00 rather than between 00:30-03:00. Not an issue as I use HA to deal with this situation...

You do, but if you look into the details, the deemed export is due to a lack of properly calibrated export meters, with the provision that if a properly calibrated meter is fitted then the deemed export can be replaced by metered export. A smart meter is just such a meter, so some of the FiT...

A new Powerwall ships with about 14.7kWh reported capacity

Ignore the application form, there should be a letter from the DNO approving the G99 application and stating the new approved export limit in plain language.

Did your DNO decline approving a higher export limit? We also have 2 Powerwalls and 4kWp solar, and UKPN approved 13.68kVA for us, but perhaps there are local constraints limiting your export? Even with that approval the site limit on Tesla was left set at 5kVA by the installers, but one quick...

There are some important nuances to the rules though, if you pay by DD the supplier is still allowed to use those payments to pay for previously un-billed energy use, similarly if you've received any balance refunds they are allowed to reverse those, so it isn't quite as simple as it might seem...

Exactly, if you opt to use a beta tariff, then you do need to pay enough attention to notice when you do not get an accurate bill each month...

Exactly, unless your Solar PV is old enough to benefit from a FiT payment there is more to be made from exporting the excess than you save by charging the EV with it...

... as long as you are not actively preventing IOG from charging outside that window then all is good... For me, IOG very frequently prefers to charge up to 08:30 or later in the morning rather than between 00:30-0300, but that works as I don't need the car earlier than that and HA takes care...

I've got 2xPW2 and 4kWp of solar and use IO, no 'faff' at all since they added the Zappi as a supported EVSE integration. Fully automated using HA to protect the PW2 when charging outside the 23:30-05:30 low rate period. Running happily with an 80A main fuse and the limiter set on the Zappi...

You don't have direct control over the standby reserve either, but you can choose to have it set to 20% when you join the TEP. Storm Watch mode does work, but again, you do not have the option to turn it on/off.

Thanks for the replies, no sign of app errors so I'm going ahead with the service booking. On the Model S the sensor is in the rear view mirror assembly I beleive, but may still be outside scope for Ranger.

Yep, that looks good, if I believed mine it would make a great freezer at the moment :) Time for a service call, should be a Ranger job I hope.

Just a quick check with those of you using the new 4.0 version of the Tesla app on iOS... Does the climate temperature you see in the app appear reasonable? Mine is starting out around -12C and slowly climbs to around 2C then resets back to sub-zero... A/C Auto seemed weird as well so I...

Sorry to hear you've been waiting that long, makes my March '21 order seem quite recent... I'll post again when I hear if the next stock delivery date I've been given (September) actually happens.

Thanks for the comments, it seems to be since March that everything has fallen apart in the supply chain. Was expecting installation in August, but stock didn't arrive, now hoping for October...

Interesting choice... Square1 don't seem to have any tariff that should appeal to someone with an EV, did I miss something, do they have a hidden tariff with low night rates?

If anyone has had a recent PW2 install I'd be interested to hear when it was ordered and who you used for the install? Seems like there is hardly any stock reacing the UK these days, but perhaps I'm just talking to the wrong installers... ?

Not having their car park overrun by people parking there and not using the hotel. and yes, I find it hard to believe it would be a problem there but apparently it was.

There was one operating at the Oxford SC when I was there a couple of weeks ago. He was wandering from car to car offering his services. Sadly I had nothing for him to do.

You might get lucky, the tariff is still there although it has gone up a bit (8.72p/kWh 22p SC Eastern), so you might get grandfathered into a renewal...

If he is, it is an accident on Octopus's part, as Agile Export cannot be combined with 'Go' under their rules. The only export option for him should be the 3p SEG tariff...

Not any more it isn't, the 8p rate has gone for new customers and there is a standing charge... Currently 11.24p/kWh and 22p SC for Eastern region.

It was a decent tariff, but there were recent changes that make it much less appealing now. There are better options with Octopus like their 'Go Faster' tariff for example that can deliver lower per kWh costs and leave you in control. With the tariff as it is, you bear the cost of the...

No help I know, but I actually like the Netherlands version of Netflix, they get a few things that we don't.

They are adjustable on the MS though...

Do let us know how it goes...

As far as I am aware, that is as good as it gets right now... The variability of UK weather was not a factor in the California based design :) Not like the UK is alone in this need though, large parts of the USA do not benefit from California weather patterns either...

I've been digging into the fire code situation a bit with respect to an installation in Texas, and it is worth checking a bit deeper than the simple '3ft setback' requirement as it seems it is a general requirement in most places as it is based on the assumption that the fire department might...

Reported elsewhere that Tesla use YYDDD format for the manufacturing date... So this one: Would be 2020 day 294 which is October 20th, 2020.

That would be entirely consistent with previous major component changes on Tesla products. They keep going until the bin is empty then start on the new stuff so one line can be producing 'new' untis while another is still using up old stock...

That is similar to what we have in the UK with the Tesla VPP. The Tesla Energy Plan has a single flat rate 24/7 for import/export and no daily fixed charges to cover the round-trip losses.

Not sure about this one. He is stating as fact that the PW+ is a DC coupled battery now instead of AC, but the spec sheets for it still refer to 90% 'round trip' efficiency which would mean AC coupled.. ?

it is this quote from Elon you are thinking about I suspect: “The difficulty of the installation will be much less. It will be much easier because the power from the solar roof, Solarglass Roof or the solar panels, will only ever go directly into the Powerwall. And the Powerwall will only ever...

I'd certainly be surprised if the install in the picture would have been code compliant on the main house, but it certainly made the difference on the number of panels you could fit onto that roof. I'm guessing that rain water run-off is going to mostly miss the existing gutter though, and...

... and just because Tesla can't use the Powerwall+ option in a few states doesn't mean they can't still use the Backup Gateway 2 design in those locations. They are still going to be producing that hardware for the global market for a while at least, so it isn't just going to vanish overnight...

My understanding is that 'revenue grade' is not the same as 'certified & approved' :) Not sure that a zero export option would be all that popular, this isn't just stopping the Powerwall+ from exporting to the grid, this would require no solar export at all with the new configuration.

Keep in mind that the US market is the only one where Tesla currently sell their own inverter, so whatever changes they make to the Powerwall+ the odds are it is still going to be installable with other inverters, and even in the USA, they will not be using the new Powerwall+/inverter...

Tesla added the ability to specify and end time for ToU tariffs quite recently, shouldn't need to do more than set the start and end time these days...

A recent software update added the option to set an end time for ToU tariffs so you should be able to do it properly now.

It is actually 3, 4 or 5 hours, 4.5p, 5p, 5.5p respectively...

Should be there by now, but it can be easy to miss, take a look at the 'balance calculation' section it should show there.

There are a few apps for iOS/Android that will let you save the data, also many scripts shared by other users or just invest a few minutes in setting up a spreadsheet to use the Octopus API...

Why wouldn't you expect that behaviour? The speed limit begins at the sign, if you don't slow down before the sign you will be breaking the speed limit.

Also got the vent option on my S.