Pocster

You’d (expletive deleted)ing owe me !

Really ? No good you topping up at my house !

Is this using the car to power the house of limited use anyway ? Are you likely to charge your car at cheap rate - then at a later time discharge it to power your home . What I mean is leaving the charge therefore in your car lower . Can understand if your employer has a free EV charger - fill your boots at work then drive home and power your house . I just can’t see a real benefit for most people .

Sore

Bloody SWMBO !!

Does it matter the portion going into the SE battery isn't measured by Tesla ? ( I know it isn't ). Why would Tesla 'care' about that? CT placements I assume are correct - no issues I am aware of. "Solar assignment" no idea what that refers/means

Strangely enough Tesla emailed me suggesting their might be a problem. It's unclear too me the issue though. From a remote analysis of the customers system I could see that since 23rd June 2022 the Solar Production is showing negative values (see graph below). With negative loads the overall system measurement is incorrect and the battery cannot charge in a proper way. Since the customer has another SolarEdge battery since June 2022 (I assume in the same electrical circuit) we need to see if: a) this is a compatible setup, and if yes, how to make it measure correctly. [Because the portion which is going into SolarEdge battery is not being measured here] b) if there is an incorrect Solar CT placement or an incorrect Solar assignment

No - you are correct ! Pv / batteries at home rate FAR above a vehicle too me . Anyway I won’t be seen dead in Sainsbury’s- Waitrose for me !

We’ve kind of had these conversations before . If I go and buy a new Tesla motor for 80k - no one does the maths on cost per mile including the initial 80k outlay . Because it’s a car it’s ok to be effectively’ cost in effective’ .

Of course ! Also their degradation over time . But that was never my objective. So no ropey numbers for @SteamyTea

It would be nice if Tesla , SolarEdge etc. could all sit round a table and have the batteries/ inverters all communicate with each other . Alas ; that won’t happen …

My Tesla would win in a fight .

That’s tricky for a lot of reasons ! So no I haven’t . But in 12 months I haven’t spent a penny on electric . I.e my export in summer covers any import . This was my intention. That includes 4K mileage on an EV also .

Anyway ! Does it have any smartness ? . Or just follow a simple ToU profile ? . Any predictive ness ??

Yes . How in the last few days has your pv generation been ??

Ok , ok ! . You can stack PowerWalls . You could have 3 per phase if you had 3 phase .

Nope

Just my octopus off peak window 00:30 until 04:30 . During winter always 100% charge - but last few days PV ( especially for February) has been really good . I assume therefore the algorithm decides no need to charge so much .

I often get ‘told’ the Tesla battery is overpriced and you are paying for the name . Of course you are . But ; it has the largest capacity , has its own heating / cooling system and very reliable software . Recently it’s been a bad boy and not charging at night fully ( sometimes as little as 30% ) . Not really an issue for me because if I need to I can discharge my SE battery into it . I was watching it today . Small charge last night . On the edge of taking from the grid at peak rate ( my blood boils !! ) PV then picks up to supply the house and charge battery a bit . It truly is a smarty pants .

Batteries in the loft would worry me . Not just because if 1 goes pop but access for the future I.e replacing them . Outside definitely best ( unless you have heaps of internal wall space ) . I was considering insulating my SolarEdge battery as it seems to struggle at below zero ; but then airflow especially in summer could be an issue - so I did nothing - easiest solution .

What’s the issue here ??

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I guess that’s a blessing ! . DIY whilst maybe not the prettiest ( depending on your skill level ) is frequently done better than the alleged professionals 😁👍

Foam fill and tape joints . Wonder what else the builders have ( or haven’t ) done ?

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