Tesla
-
@taniwharugby said in Tesla:
Just had a bloke take me through a quote - $9.2k installed for a 10kW HINEN system. That's about 3yrs of bills for us so pretty good payback.
.
I do worry though that we might see all the retailers triple the Daily Supply Charge soon...what is the daily charge (assume that is the same as the charge here to stay connected to the network)
We are having a system installed next week, and think it is a $3.90 daily charge to stay connected and the best rate in NZ to buy back is 0.20c per kw.
I pay $1.42 per day, then $0.29 Off-Peak and $0.62 Peak. Fuckers just ditched Shoulder, so now Peak runs 3-9pm every day.
In theory I guess I could be powering the house and charging my (currently imaginary) battery with my solar until 3pm, then switching to battery at 3pm for the evening until 9pm? Have no idea if my loads match that profile though.
Edit - my current retail plan scores be $0.06 for dispatching my solar into the grid
-
@voodoo was a story on TV1 this morning saying we are lagging well behind Aus in solar, but I guess having less sun is 1 factor, cost the other where everything costs more here.
The provider I was with were only offering 0.12c buyback and wanted to charge me $250 to upgrade my metre for the solar, and I think most NZ providers buyback at a flat rate, no on/off peak rates, but as above, 0.20c is the highest rate currently (residential anyway)
-
so our system went online about 3pm yesterday...very easy to get a bit obsessive watching the numbers.
Battery only got upto 33% yesterday, but got to 100% by midday today after discharging overnight, which doesnt seem too bad for a warm mildly cloudy winters day.
-
@taniwharugby said in Tesla:
...very easy to get a bit obsessive watching the numbers.
You won't need Netflix for a while
I spent every spare second looking at my usage vs generation in the early days, particularly as it was calculating costs in real time!
-
@taniwharugby what size system did you get? Which battery / inverter brand?
-
Apparently Tesla are going to replace my PW1 (yay) with a PW2 (boo). TBH they should do the current model PW3 which is only different in output capacity.
BUT the installer says the process takes 6-8 weeks. Fucking Tesla
Now I'm told it'll be a PW3 - makes sense as installers stopped using PW2 when stocks ran out.
PW2 - 13.5kWh storage in NMC chemistry - 5kW continuous output with peak of 7kW
PW3 - 13.5kWh storage in LFP chemistry - 11kW continuousThe big challenge: usage! With only 6.5kW of panels running through a 5kW inverter, it will take at least 3 hours to fill.
Also wondering about pulling power the other way e.g. if the house demands 6kW the inverter is probably going to be the bottleneck at 5kW
-
Apparently Tesla are going to replace my PW1 (yay) with a PW2 (boo). TBH they should do the current model PW3 which is only different in output capacity.
BUT the installer says the process takes 6-8 weeks. Fucking Tesla
Now I'm told it'll be a PW3 - makes sense as installers stopped using PW2 when stocks ran out.
PW2 - 13.5kWh storage in NMC chemistry - 5kW continuous output with peak of 7kW
PW3 - 13.5kWh storage in LFP chemistry - 11kW continuousThe big challenge: usage! With only 6.5kW of panels running through a 5kW inverter, it will take at least 3 hours to fill.
Also wondering about pulling power the other way e.g. if the house demands 6kW the inverter is probably going to be the bottleneck at 5kW
Will the LFP batteries accept that amount of energy in a short time? I’m pondering different battery and solar setups for my island cabin. TBH it’s really low power use, currently only 150 aH of old lead acid and 400 watts of solar that only produces about 230 watts, but it’s fun to think about the possibilities.
-
@NTA I'll have to check for specifics, but 13.8kw GivEnergy stackable Battery, think it is a 3 phase inverter with max output of 11kw and 16 Aiko panels.
On Friday the peak input from the panels was 8.8kwh.
Took about 3 hours to charge yesterday but had some appliances running at same time, hopefully summer will see quicker charge times.
But gee, you notice how quick some appliances, particularly the hot water cylinder drain the power...next stop, heat pump hot water me thinks with a bigger tank too.
-
@taniwharugby the knowledge is part of the value IMHO
