Our house, and Powerwalls, and Gateway are still on Single Phase.
Only our 3 Phase wall charger is on 3 Phase... so it all works well
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Solar Exported Today
- Thread starter PITA
- Start date
Our house, and Powerwalls, and Gateway are still on Single Phase.
Only our 3 Phase wall charger is on 3 Phase... so it all works well
How our setup works is like this...
- 3 Phase incoming supply
- 3 Phase Smart Meter (on Octopus Go)
- 3 Phase Distribution Board
- 3 Phase Distribution Board supplies 3 Phase Car Charger (defaults to L2 on 7kW)
- Single Phase to Tesla Gateway 2 on L1
- Gateway 2 then manages Single Phase Powerwalls, Solar Inverter, Single Phase Ev Charger & Consumer Board on Single Phase
It's setup this way because I only needed 3 Phase retro-fit for extra 11kW Ev Charger (and the 3 Phase upgrade cabling was free of cost)
- 3 Phase incoming supply
- 3 Phase Smart Meter (on Octopus Go)
- 3 Phase Distribution Board
- 3 Phase Distribution Board supplies 3 Phase Car Charger (defaults to L2 on 7kW)
- Single Phase to Tesla Gateway 2 on L1
- Gateway 2 then manages Single Phase Powerwalls, Solar Inverter, Single Phase Ev Charger & Consumer Board on Single Phase
It's setup this way because I only needed 3 Phase retro-fit for extra 11kW Ev Charger (and the 3 Phase upgrade cabling was free of cost)
ACarneiro
Active Member
Yes, I remember you sharing your setup before.
I won’t go Three Phase unless I supply all three phases with battery and a three-phase solar inverter.
I dislike the idea of unbalancing the local grid. Messes with my OCD.
If I get to be old enough to retire (blood cancers are a joy!), I suspect my forever home will be in Portugal and it’ll be three-phase all the way
MrBadger
Badger out
Good to see lots of people wasting energy for the sake of it when they should have been exporting it back to the grid to benefit everyone else or saving it for the likes of today…
It’s not like yesterday afternoon was a low carbon intensity period - hint, it was pretty high (below) so could have done with a bit of help from those of us able to contribute.
We contributed by exporting more than 50% of what we generated and even without batteries, took around 5kWh from the grid most of that at the lower carbon emissions part of the day.
Odd that you don’t see many of these self congratulatory type posts when the systems are not performing at peak.
Anyone want to update with todays figures, or have they wasted yesterdays excess and not carried forward the gains to offset today?
It’s not like yesterday afternoon was a low carbon intensity period - hint, it was pretty high (below) so could have done with a bit of help from those of us able to contribute.
We contributed by exporting more than 50% of what we generated and even without batteries, took around 5kWh from the grid most of that at the lower carbon emissions part of the day.
Odd that you don’t see many of these self congratulatory type posts when the systems are not performing at peak.
Anyone want to update with todays figures, or have they wasted yesterdays excess and not carried forward the gains to offset today?
ACarneiro
Active Member
Someone woke up on the wrong side of bed today.
I didn’t do anything I wouldn’t have done anyway, and yes I suspect most of us are happy to feed the grid and reduce the carbon output overall.
Not sure I ever saw anyone saying they’d wasted power just for the sake of it.
And as you’ve so kindly and not-sarcastically-at-all asked, my Powerwalls are about 80% full by now. I’m not home so will probably be exporting most of the afternoon’s production. I hope this will help you sleep better tonight.
scdoubleu
Member
Au contraire. I'm happy to export excess to the grid, but only when I can't use/store any more. I paid for the system, so I get first dibs on the energy.
13.7 kWh generated so far today, Powerwall at 84%, minimal overnight grid usage. This should see us through the rest of the day, even with clouds/rain forecast for later.
Rather than feel guilty about not contributing green energy to the grid, I'm helping by not consuming high-carbon grid energy.
Car is at 56% and Powerwalls are at 62% ... So send some over here and stop being selfish
ACarneiro
Active Member
Sure thing!Car is at 56% and Powerwalls are at 62% ... So send some over here and stop being selfish
It’ll be on its way via the National Grid
Sure thing!
It’ll be on its way via the National Grid
... argh... it'll ruin my stats
24kW array. Solaredge 10kw inverted and an Outback radian 8048a with batteries backing up the critical load panel.
As for the usage of heat pumps, heat pump water heater, the oven, and charging two cars with a fair amount of driving.
We have net metering, where I have a rolling year to use my credits.Here it was a bad day!
I had moderate sun previous two days and got the cars fully charged ...
... so yesterday, with very good sun, I had nowhere to put my juice
92kWh solar, 35kWh into the house, 25kWh into the PowerWalls and 32kWh to grid
Maybe I should have driven round in a circle for 96 miles to create space ...
Car charging for the week: Sun 42kWh, Mon 26kWh, Thur 24kWh, Fri 11kWh
O/P is in Maine - I expect they have Net Metering - so whatever you export you and import, and supplier "net" the two off, so over some period of time (a year maybe?) you only pay for what you import, over what you export
I also have Optional Time of use for when I run out of credits.
The solar-generated energy is used first to offset peak time no matter what time of day the power is generated.
Ciaopec
Active Member
scdoubleu
Member
So it's true what they say that everything's bigger in America?!? 
Don't expect there are many domestic installations on this side of the pond can compete with those numbers.
Don't expect there are many domestic installations on this side of the pond can compete with those numbers.
Ciaopec
Active Member
RedMod3
Member
Ciaopec
Active Member
How very nice! Wish I had he luxury of 2 power walls. Since I had solar previously, I cannot install Powerwalls without (a minimum of) 8 extra panels. The local utility nixed the idea because they limit production to 150% of consumption and the 8 extra panels would push me to 192%. Looking for a loophole like 8 panels and 2 batteries completely off grid to be used as backup only.
RedMod3
Member
Today was a bad day. After generating 34.5 yesterday, I generated just 7.2 today and as we had thunder and lightning this evening I had to top up the Powerwall reserve in case of a power cut.
That's a shame. Today, I'm still on Self-Powered mode... and probably should have topped up the Powerwalls overnight on Low Cost Grid Power.
But instead I'm playing the House Range Anxiety game.
I've rolled the dice and it's now a race between the Sun waking up and filling the Powerwalls, or the Family waking up... and draining them into peak rate
... Exciting isn't it
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