A useful exercise in logic ?

silverwhistle

Can I ask for a few more variables:
- having such low purchased fuel that I'm on a zero standing charge tariff but excruciating unit rates
- whether my GF moves in (extra DHW and she does tend to overfill the kettle for tea )
- whether I finally get a second hand EV. Can I also ask for various mileage scenarios?

Gawd, it's complicated, and I was never good at Excel..

All joking aside it does show that it's a very individual decision.

Coastalwatch

Oh, while your at it Zeup, could it please sort Brexit for us as well!:D

zeupater

silverwhistle wrote: »

Can I ask for a few more variables:
- having such low purchased fuel that I'm on a zero standing charge tariff but excruciating unit rates
- whether my GF moves in (extra DHW and she does tend to overfill the kettle for tea )
- whether I finally get a second hand EV. Can I also ask for various mileage scenarios?

Gawd, it's complicated, and I was never good at Excel..

All joking aside it does show that it's a very individual decision.

Hi

So many variables ... good job the model was developed with these in mind .... :cool:

Based on the standard household usage model having a simplified adjustment to reflect low consumption ~1200kWh of imports with a 4kWp system + 3680W inverter with something similar to a PW2 battery system ...

Using typical daytime tariff with standing charge
Std - £370
+PV - £275
+Batt - £135

Then with E7
E7+Batt - £160
E7+Batt+AI - £135

Closely followed by using available no standing charge 12mth fixed rate.
Std - £375 (So similar!)
+PV - £242
+Batt - £52


Note : All no proportional diversion & no EV ....




HTH
Z