Only found out about the savings session at 5.40pm and had been exporting for 5 hours, managed to top the battery up to 13% and used no electric for the hour. I’d set the dishwasher to come on at 6pm
8.18 kwh baseline so not all wasted……
Mitsubishi Ecodan
ASHP 8.5kW x 2
12 x 460w Solar panels
9.5kWh GivEnergy
Batteries x 2
EVs x 4 240 kWh Batteries
Ripple 5.8 kW PV 0.547 kW Whitelaw Brae
These savings sessions are interesting - I guess this week the sun has finally appeared and during daytime hours, Solar is putting out some big numbers - but at the moment those numbers don't stretch to the 4-7pm peak (yet). Quite a bit of wind on the grid too, and so gas isn't really being stretched generation-wise. Seems to be more about "can we keep a bit more gas off the grid for a bit longer because it would be nice to" rather than "damn it everything's already turned up to 11 we've got nothing left to turn on"?
Tesla Model 3 Performance
Oversees an 11kWp solar array at work
yes its interesting, it would be even more interesting if they preceded a saving session on sunny / windy days with a free power hour to see if some people could shift they peak power use from tea time by an hour or so ? Equally beneficial in load management but not apparently a tool that they are keen in deploying ?
We often cook up a pot of something for tea when the sun is at its best around 2pm then turn off the power and cover the cast iron pot with 4 or five tea towels to insulate it - we can usually serve it straight to the bowl without further heating as much as 3 hours later.
Just seems like they are thinking in OR terms rather than AND OR terms.
dan_b wrote: ↑Wed Mar 05, 2025 10:22 am
Seems to be more about "can we keep a bit more gas off the grid for a bit longer because it would be nice to" rather than "damn it everything's already turned up to 11 we've got nothing left to turn on"?
The NESO stated in their recent webinair that the DFS is now a merit based margin tool and that if gas is cheaper they will go with the gas. Its in their licence agreement with OFGEM. Environmental concerns are currently not considered.
But not all gas generation is the same price, OCGT and other capacity market / balancing services generation will cost more per kWh. Yesterday's accepted bids attracted a premium of about 4p / kWh to the general market price at the time of the SS.
18.7kW PV > 110MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 33MWh generated
7 Other RE Coop's
105kWh EV storage
90kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 520 m3
SimonSays wrote: ↑Wed Mar 05, 2025 11:18 am
Octopus bid accepted at 16p.
Same time as yesterday 6pm to 7pm.
EDIT - Opting in with Octopus is now open and is paying the same 13p / kWh as last night.
Thanks for these alerts, we get the inside knowledge hours befor an email comes, and (for me) often in time to set it up before I go out as I can't control mine remotely...
A
2.0 kW/4.62 MWh pa in Ripples, 4.5 kWp W-facing pv, 9.5 kWh batt
30 solar thermal tubes, 2MWh pa in Stockport, plus Congleton and Kinlochbervie Hydros,
Most travel by bike, walking or bus/train. Veg, fruit - and Bees!