Ditching gas, going electric immersion only, a wee project

Solarchaser

I think Nick explained it best.
But basically your core hours are 23:30 -05:30, and that is all at 10p for whole house.
However if you plug in your car and say you want maybe 50% charge and you are at 10% then octopus controls when exactly they charge the car within the limits of when you plugged in the car and what charge you have said you want in the morning,  so they may charge from 8pm to 9pm and then midnight to 1am etc, that's controlled by octopus,  as long as it delivers your expected charge, and its all at the cheaper rate regardless of what time its activated. 

That wouldn't work for me as I have batteries, but the 6 hours of cheap rate work fine, so I'd only plug in the car between 23:30 and 05:30

1961Nick

Solarchaser said:

I think Nick explained it best.
But basically your core hours are 23:30 -05:30, and that is all at 10p for whole house.
However if you plug in your car and say you want maybe 50% charge and you are at 10% then octopus controls when exactly they charge the car within the limits of when you plugged in the car and what charge you have said you want in the morning,  so they may charge from 8pm to 9pm and then midnight to 1am etc, that's controlled by octopus,  as long as it delivers your expected charge, and its all at the cheaper rate regardless of what time its activated. 

That wouldn't work for me as I have batteries, but the 6 hours of cheap rate work fine, so I'd only plug in the car between 23:30 and 05:30

I've set scheduled charging my Zappi to 23.30 - 05.30 to prevent Octopus from charging the car outside of the core off peak. This prevents Octopus from draining my batteries at say 8.00pm & leaving me paying 40p/kWh for the rest of the evening when I could have been running on batteries until 23.30.

On the odd occasion that I get an 'extra' session - say 20.00 - 22.00 - I've noticed that I get the 10p rate even though the Zappi won't let Octopus charge the car. Apparently you can have your cake & eat it.

Solarchaser

Excellent. 
That is good news as that's what I'm planning to do.
On the myenergi forum they have noted the zappi might be fully integrated with octopus around May time.

1961Nick

Solarchaser said:

Excellent. 
That is good news as that's what I'm planning to do.
On the myenergi forum they have noted the zappi might be fully integrated with octopus around May time.

Tbh, with 2 EVs you may be better off letting Octopus have control of the Tesla & leave the Zappi settings free to look after the other EV when you plug that one in.

Solarchaser

The leaf only does 3.3kw max, the Zappi was really gotten for the tesla so I figure I'll leave the leaf running the granny charger on a timer for the same times and just charge it at 2.2kw.

Solarchaser

It's been a wee while since I've been on the forum, I'm not gonna do a very wordy post unless folk want individual detail.

Short version is my electric consumption for the year, vs my electric and gas consumption for the previous year is around 15-20% less for the heating cost.
That is I've assumed the same electrical consumption for not heating, and so removed it from the calculations, and so using purely what's left against the gas consumption over previous years I'm 15% better some months and 20% better other months.

I noted when I was away for a week, the tanks used roughly 8kwh a day, that is 8kwh were expended each day through the eddi to maintain an 84C temperature across both tanks.

So there is work to be done with boxing them in as I've mentioned in previous posts... just need to get round to actually doing it.

chris_n

Solarchaser said:

It's been a wee while since I've been on the forum, I'm not gonna do a very wordy post unless folk want individual detail.

Short version is my electric consumption for the year, vs my electric and gas consumption for the previous year is around 15-20% less for the heating cost.
That is I've assumed the same electrical consumption for not heating, and so removed it from the calculations, and so using purely what's left against the gas consumption over previous years I'm 15% better some months and 20% better other months.

I noted when I was away for a week, the tanks used roughly 8kwh a day, that is 8kwh were expended each day through the eddi to maintain an 84C temperature across both tanks.

So there is work to be done with boxing them in as I've mentioned in previous posts... just need to get round to actually doing it.

Need more detail pleeeeeze. ;-)

Heedtheadvice

chris_n said:

Solarchaser said:

It's been a wee while since I've been on the forum, I'm not gonna do a very wordy post unless folk want individual detail.

Short version is my electric consumption for the year, vs my electric and gas consumption for the previous year is around 15-20% less for the heating cost.
That is I've assumed the same electrical consumption for not heating, and so removed it from the calculations, and so using purely what's left against the gas consumption over previous years I'm 15% better some months and 20% better other months.

I noted when I was away for a week, the tanks used roughly 8kwh a day, that is 8kwh were expended each day through the eddi to maintain an 84C temperature across both tanks.

So there is work to be done with boxing them in as I've mentioned in previous posts... just need to get round to actually doing it.

Need more detail pleeeeeze. ;-)

Sadist.... :-)

QrizB

chris_n said:

Solarchaser said:

It's been a wee while since I've been on the forum, I'm not gonna do a very wordy post unless folk want individual detail.

Need more detail pleeeeeze. ;-)

I'd also appreciate a few more details, please, if you don't mind.

Did it work as planned?

Did you need to change or adapt anything on the fly?

Do you have any thoughts on future modifications or improvements?

Solarchaser

Heedtheadvice said:

chris_n said:

Solarchaser said:

It's been a wee while since I've been on the forum, I'm not gonna do a very wordy post unless folk want individual detail.

Short version is my electric consumption for the year, vs my electric and gas consumption for the previous year is around 15-20% less for the heating cost.
That is I've assumed the same electrical consumption for not heating, and so removed it from the calculations, and so using purely what's left against the gas consumption over previous years I'm 15% better some months and 20% better other months.

I noted when I was away for a week, the tanks used roughly 8kwh a day, that is 8kwh were expended each day through the eddi to maintain an 84C temperature across both tanks.

So there is work to be done with boxing them in as I've mentioned in previous posts... just need to get round to actually doing it.

Need more detail pleeeeeze. ;-)

Sadist.... :-)

I agree completely!!