@seumasm.bsky.social
Neat feature of the Tesla Powerwall 2 is Storm Watch grid charging, even without the DNO approval in place it grid charges (not normally possible) when Storm Watch is active. Period is 0600-2359 tomorrow. DGAF about peak rate, £2 for ~5 hours potential off grid heating feels worth it.
January 23, 2025 at 5:56 PM
Neat feature of the Tesla Powerwall 2 is Storm Watch grid charging, even without the DNO approval in place it grid charges (not normally possible) when Storm Watch is active. Period is 0600-2359 tomorrow. DGAF about peak rate, £2 for ~5 hours potential off grid heating feels worth it.
Peaked at 376 gCO2/kWh, think that might be a recent record? Highest average as well in the short period I've been monitoring it. I wonder if the dip was gas generation going offline during low demand?
Also not often I expect you see solar outperforming wind at this time of year.
Also not often I expect you see solar outperforming wind at this time of year.
January 22, 2025 at 12:47 PM
Peaked at 376 gCO2/kWh, think that might be a recent record? Highest average as well in the short period I've been monitoring it. I wonder if the dip was gas generation going offline during low demand?
Also not often I expect you see solar outperforming wind at this time of year.
Also not often I expect you see solar outperforming wind at this time of year.
Heat pump installed 40 days ago, running well during briefly sub zero weather. Powerwall 2 installed last week along with solar (~3.6 kWhp). Solar generation covering all Cosy peak tariff (4pm-7pm) heat pump use in January (@58.47° North) since operational, admittedly mostly mild temperatures so far
January 20, 2025 at 8:30 PM
Heat pump installed 40 days ago, running well during briefly sub zero weather. Powerwall 2 installed last week along with solar (~3.6 kWhp). Solar generation covering all Cosy peak tariff (4pm-7pm) heat pump use in January (@58.47° North) since operational, admittedly mostly mild temperatures so far
A lot of that carbon intensity is for supplying South Scotland and marginally 'North West England' and 'North Wales and Merseyside' (via subsea link through South Scotland).
Doesn't change the fundamentals though, my mother got a Powerwall fitted last week so no heat pump load during peak period.
Doesn't change the fundamentals though, my mother got a Powerwall fitted last week so no heat pump load during peak period.
January 20, 2025 at 6:16 PM
A lot of that carbon intensity is for supplying South Scotland and marginally 'North West England' and 'North Wales and Merseyside' (via subsea link through South Scotland).
Doesn't change the fundamentals though, my mother got a Powerwall fitted last week so no heat pump load during peak period.
Doesn't change the fundamentals though, my mother got a Powerwall fitted last week so no heat pump load during peak period.
Recommend Octopus Compare app on Android and iOS, small monthly charge of ~50p if you want beyond the last month comparison.
If you are tariff swapping you need to track the change of tariff dates elsewhere, there is also a Beta function for Consumption Shift.
Upcoming rates also included.
If you are tariff swapping you need to track the change of tariff dates elsewhere, there is also a Beta function for Consumption Shift.
Upcoming rates also included.
January 16, 2025 at 5:06 PM
Recommend Octopus Compare app on Android and iOS, small monthly charge of ~50p if you want beyond the last month comparison.
If you are tariff swapping you need to track the change of tariff dates elsewhere, there is also a Beta function for Consumption Shift.
Upcoming rates also included.
If you are tariff swapping you need to track the change of tariff dates elsewhere, there is also a Beta function for Consumption Shift.
Upcoming rates also included.
Plot and csv data linked below.
gist.github.com/seumasmorris...
October 1st to today
gist.github.com/seumasmorris...
Home Assistant - Integration
github.com/BottlecapDav...
gist.github.com/seumasmorris...
October 1st to today
gist.github.com/seumasmorris...
Home Assistant - Integration
github.com/BottlecapDav...
January 6, 2025 at 8:13 PM
Plot and csv data linked below.
gist.github.com/seumasmorris...
October 1st to today
gist.github.com/seumasmorris...
Home Assistant - Integration
github.com/BottlecapDav...
gist.github.com/seumasmorris...
October 1st to today
gist.github.com/seumasmorris...
Home Assistant - Integration
github.com/BottlecapDav...
8.5 kW R32 Ecodan installed 12/12/2024. Replacing resistive heat, mainly mild outside temps. Average flow temperature ~35C. Ecodan reported COP 2.63 (163kWh in, 429kWh out). Massive improvement in thermal comfort, house demand costs probably closer to 40% with Cosy, ~£7.3/day last 5 days.
December 21, 2024 at 12:07 PM
8.5 kW R32 Ecodan installed 12/12/2024. Replacing resistive heat, mainly mild outside temps. Average flow temperature ~35C. Ecodan reported COP 2.63 (163kWh in, 429kWh out). Massive improvement in thermal comfort, house demand costs probably closer to 40% with Cosy, ~£7.3/day last 5 days.