How low can you go...Daily, Weekly, Monthly, Whatever... electricity grid import

Alnat1

I'm still new to solar (3rd Mar 22 install) and I've found it's become a hobby to check all the graphs and stats each day, (sometimes several times) follow energy prices, check weather forecasts and keep reading and learning even more. 

It's going to be interesting to see at the end of February how much my annual consumption from the grid  has reduced. 

ed110220

mickyduck55 said:

ed110220 said:

Here's how our electricity imports have changed since the PV and batts were installed on 21 June (highlighted):-



We've gone from importing 320 kWh in in our last full month without PV (May) to 19 kWh from 1 - 15 July, so on average cut our daily import from 10.3 to 1.3 kWh.

I quite enjoy looking at my import .. negligible in the summer.. yes the ROI on batteries and solar not short term.. 
but max import 0.35 kWh mid June to now!

Nice! I presume you have more powerful batteries or less of a peak demand than me? I have found myself doing things like only putting the induction hob "ring" on medium to bring water to the boil rather than on the highest setting to boil it quickly. Still, I'm happy with how much our import has gone down. The next question will be when to switch to the Octopus Go tariff when solar generation starts dropping below what is needed for charging up the batts (and whether they will allow me to do that without an EV).

Spies

My grid use pretty much doubled whilst my inverter was down, but I only hit a maximum of 10kWh...

QrizB

I'm quite pleased with the last week. A total import of 0.98kWh.

I'm running a portable A/C unit for the next couple of days, which is going to ruin my track record.

After that we should be back to 0.1-0.2kWh/day so long as the sun keeps shining.

mickyduck55

QrizB said:

I'm quite pleased with the last week. A total import of 0.98kWh.

I'm running a portable A/C unit for the next couple of days, which is going to ruin my track record.

After that we should be back to 0.1-0.2kWh/day so long as the sun keeps shining.

I have been running mine the last couple of days.... batteries still covering it and I still exported 7.8 kWh today !

ed110220

Imported 41.6 kWh in our first calendar month of having the solar and batteries. For comparison we imported 319.9 kWh in May, the last full month without them. 

Mikeyboy01443

well today is the absolute worst day of solar lol 4kwh of solar generation today compared to 35-40 over the last few weeks - has there been an eclipse i didnt know about?

mickyduck55

Mikeyboy01443 said:

well today is the absolute worst day of solar lol 4kwh of solar generation today compared to 35-40 over the last few weeks - has there been an eclipse i didnt know about?

Blimey.. where are you .. its been "BAU" here in the SE.. maybe a little lower than usual but still generated 22.6 kWh 

Mikeyboy01443

mickyduck55 said:

Mikeyboy01443 said:

well today is the absolute worst day of solar lol 4kwh of solar generation today compared to 35-40 over the last few weeks - has there been an eclipse i didnt know about?

Blimey.. where are you .. its been "BAU" here in the SE.. maybe a little lower than usual but still generated 22.6 kWh 

South wales... the sky has been totally grey and sun free today!

QrizB

Special cirumstances - we were away for the weekend! - but Saturday was my lowest import day ever. 8 watt-hours.