Dominic McCann
@zapaman.bsky.social
De abajo y izquierda. Hoping for greater humanity in a finite world. #Coops #CommunityEnterprise #Sustainability #Acoustics
Reposted by Dominic McCann
We used 627.3kWh of grid⚡ in Nov-2025 with
~116kWh for EV
201kWh general household activity
309.9kWh for ASHP
Delivering 988kWh heat & DHW
our PV generated 70kWh, with 69kWh self consump & ~1kWh export
Total cost of elec: £114.76 inc VAT and standing charge (but excluding FiT payments for our PV).
~116kWh for EV
201kWh general household activity
309.9kWh for ASHP
Delivering 988kWh heat & DHW
our PV generated 70kWh, with 69kWh self consump & ~1kWh export
Total cost of elec: £114.76 inc VAT and standing charge (but excluding FiT payments for our PV).
December 2, 2025 at 6:13 PM
We used 627.3kWh of grid⚡ in Nov-2025 with
~116kWh for EV
201kWh general household activity
309.9kWh for ASHP
Delivering 988kWh heat & DHW
our PV generated 70kWh, with 69kWh self consump & ~1kWh export
Total cost of elec: £114.76 inc VAT and standing charge (but excluding FiT payments for our PV).
~116kWh for EV
201kWh general household activity
309.9kWh for ASHP
Delivering 988kWh heat & DHW
our PV generated 70kWh, with 69kWh self consump & ~1kWh export
Total cost of elec: £114.76 inc VAT and standing charge (but excluding FiT payments for our PV).
Reposted by Dominic McCann
ASHP stats Nov-2025 (via MMSP)
Elec consump = 310kWh of which
DHW = 16kWh, SH = 291kWh
total heat delivered = 988kWh
Overall COP = 3.19
COP space heat = 3.27
COP hot water = 2.19
Average flow temp = 32.4°C
Outside temp = 7.6°C
Room temp = 20.1°C
Power draw SH = 596W
Power draw DHW = 1.42kW
Elec consump = 310kWh of which
DHW = 16kWh, SH = 291kWh
total heat delivered = 988kWh
Overall COP = 3.19
COP space heat = 3.27
COP hot water = 2.19
Average flow temp = 32.4°C
Outside temp = 7.6°C
Room temp = 20.1°C
Power draw SH = 596W
Power draw DHW = 1.42kW
December 2, 2025 at 6:18 PM
ASHP stats Nov-2025 (via MMSP)
Elec consump = 310kWh of which
DHW = 16kWh, SH = 291kWh
total heat delivered = 988kWh
Overall COP = 3.19
COP space heat = 3.27
COP hot water = 2.19
Average flow temp = 32.4°C
Outside temp = 7.6°C
Room temp = 20.1°C
Power draw SH = 596W
Power draw DHW = 1.42kW
Elec consump = 310kWh of which
DHW = 16kWh, SH = 291kWh
total heat delivered = 988kWh
Overall COP = 3.19
COP space heat = 3.27
COP hot water = 2.19
Average flow temp = 32.4°C
Outside temp = 7.6°C
Room temp = 20.1°C
Power draw SH = 596W
Power draw DHW = 1.42kW
Reposted by Dominic McCann
Do you have a heat pump on HeatPumpMonitor.org? If so, we need your help to compile real-world maximum output test data. Watch the video below for how to contribute. There should be some cold temperatures tonight and tomorrow. Thanks! ❄️ 🤞
November 19, 2025 at 6:39 PM
Do you have a heat pump on HeatPumpMonitor.org? If so, we need your help to compile real-world maximum output test data. Watch the video below for how to contribute. There should be some cold temperatures tonight and tomorrow. Thanks! ❄️ 🤞
ASHP stats Nov-2025 (via MMSP)
Elec consump = 310kWh of which
DHW = 16kWh, SH = 291kWh
total heat delivered = 988kWh
Overall COP = 3.19
COP space heat = 3.27
COP hot water = 2.19
Average flow temp = 32.4°C
Outside temp = 7.6°C
Room temp = 20.1°C
Power draw SH = 596W
Power draw DHW = 1.42kW
Elec consump = 310kWh of which
DHW = 16kWh, SH = 291kWh
total heat delivered = 988kWh
Overall COP = 3.19
COP space heat = 3.27
COP hot water = 2.19
Average flow temp = 32.4°C
Outside temp = 7.6°C
Room temp = 20.1°C
Power draw SH = 596W
Power draw DHW = 1.42kW
December 2, 2025 at 6:18 PM
ASHP stats Nov-2025 (via MMSP)
Elec consump = 310kWh of which
DHW = 16kWh, SH = 291kWh
total heat delivered = 988kWh
Overall COP = 3.19
COP space heat = 3.27
COP hot water = 2.19
Average flow temp = 32.4°C
Outside temp = 7.6°C
Room temp = 20.1°C
Power draw SH = 596W
Power draw DHW = 1.42kW
Elec consump = 310kWh of which
DHW = 16kWh, SH = 291kWh
total heat delivered = 988kWh
Overall COP = 3.19
COP space heat = 3.27
COP hot water = 2.19
Average flow temp = 32.4°C
Outside temp = 7.6°C
Room temp = 20.1°C
Power draw SH = 596W
Power draw DHW = 1.42kW
We used 627.3kWh of grid⚡ in Nov-2025 with
~116kWh for EV
201kWh general household activity
309.9kWh for ASHP
Delivering 988kWh heat & DHW
our PV generated 70kWh, with 69kWh self consump & ~1kWh export
Total cost of elec: £114.76 inc VAT and standing charge (but excluding FiT payments for our PV).
~116kWh for EV
201kWh general household activity
309.9kWh for ASHP
Delivering 988kWh heat & DHW
our PV generated 70kWh, with 69kWh self consump & ~1kWh export
Total cost of elec: £114.76 inc VAT and standing charge (but excluding FiT payments for our PV).
December 2, 2025 at 6:13 PM
We used 627.3kWh of grid⚡ in Nov-2025 with
~116kWh for EV
201kWh general household activity
309.9kWh for ASHP
Delivering 988kWh heat & DHW
our PV generated 70kWh, with 69kWh self consump & ~1kWh export
Total cost of elec: £114.76 inc VAT and standing charge (but excluding FiT payments for our PV).
~116kWh for EV
201kWh general household activity
309.9kWh for ASHP
Delivering 988kWh heat & DHW
our PV generated 70kWh, with 69kWh self consump & ~1kWh export
Total cost of elec: £114.76 inc VAT and standing charge (but excluding FiT payments for our PV).
BBC tells staff they cannot quote Trump line removed from Reith lecture
Journalists not allowed to repeat Rutger Bregman’s corruption claims against US president in coverage of edited lecture
www.theguardian.com/media/2025/n...
Journalists not allowed to repeat Rutger Bregman’s corruption claims against US president in coverage of edited lecture
www.theguardian.com/media/2025/n...
BBC tells staff they cannot quote Trump line removed from Reith lecture
Journalists not allowed to repeat Rutger Bregman’s corruption claims against US president in coverage of edit
www.theguardian.com
November 27, 2025 at 3:06 PM
BBC tells staff they cannot quote Trump line removed from Reith lecture
Journalists not allowed to repeat Rutger Bregman’s corruption claims against US president in coverage of edited lecture
www.theguardian.com/media/2025/n...
Journalists not allowed to repeat Rutger Bregman’s corruption claims against US president in coverage of edited lecture
www.theguardian.com/media/2025/n...
Heat-pump homes put less strain on grid than expected, study shows.
Analysis of new-builds in Birmingham suggests all-electric homes not only use less energy but vary in peak usage meaning that peak loads are also lower than anticipated.
www.theguardian.com/environment/...
Analysis of new-builds in Birmingham suggests all-electric homes not only use less energy but vary in peak usage meaning that peak loads are also lower than anticipated.
www.theguardian.com/environment/...
Heat-pump homes put less strain on grid than expected, study shows
Analysis of new-builds in Birmingham suggests all-electric homes not only use less energy but vary in peak usage
www.theguardian.com
November 20, 2025 at 1:21 PM
Heat-pump homes put less strain on grid than expected, study shows.
Analysis of new-builds in Birmingham suggests all-electric homes not only use less energy but vary in peak usage meaning that peak loads are also lower than anticipated.
www.theguardian.com/environment/...
Analysis of new-builds in Birmingham suggests all-electric homes not only use less energy but vary in peak usage meaning that peak loads are also lower than anticipated.
www.theguardian.com/environment/...
Reposted by Dominic McCann
If CO2 emissions go to zero in 2050 (top), the sinks (green) will bring atmospheric CO2 back down (middle), & temperature will stabalise at ~1.7°C (bottom).
Going to zero today will keep us <1.5°C
Constant emissions leads to 2.6°C, rising rapidly thereafter.
www.nature.com/articles/s41...
Going to zero today will keep us <1.5°C
Constant emissions leads to 2.6°C, rising rapidly thereafter.
www.nature.com/articles/s41...
November 14, 2025 at 8:23 AM
If CO2 emissions go to zero in 2050 (top), the sinks (green) will bring atmospheric CO2 back down (middle), & temperature will stabalise at ~1.7°C (bottom).
Going to zero today will keep us <1.5°C
Constant emissions leads to 2.6°C, rising rapidly thereafter.
www.nature.com/articles/s41...
Going to zero today will keep us <1.5°C
Constant emissions leads to 2.6°C, rising rapidly thereafter.
www.nature.com/articles/s41...
Reposted by Dominic McCann
Did you know you pay more fuel tax on a single car journey than a billionaire does on a private jet flight?
Right now the gov is subsidising tax breaks, when they could be using that tax to generate billions for public services.
Help us change this: https://bit.ly/43NAeFN
Right now the gov is subsidising tax breaks, when they could be using that tax to generate billions for public services.
Help us change this: https://bit.ly/43NAeFN
November 5, 2025 at 4:00 PM
Did you know you pay more fuel tax on a single car journey than a billionaire does on a private jet flight?
Right now the gov is subsidising tax breaks, when they could be using that tax to generate billions for public services.
Help us change this: https://bit.ly/43NAeFN
Right now the gov is subsidising tax breaks, when they could be using that tax to generate billions for public services.
Help us change this: https://bit.ly/43NAeFN
ASHP stats Oct-2025 (via MMSP)
Elec consump = 153kWh of which
DHW = 16kWh, SH = 133kWh
total heat delivered = 605kWh
Overall COP = 3.96
COP space heat = 4.28
COP hot water = 2.32
Average flow temp = 31.0°C
Outside temp = 11.1°C
Room temp = 19.3°C
Power draw SH = 409W
Power draw DHW = 1.42kW
Elec consump = 153kWh of which
DHW = 16kWh, SH = 133kWh
total heat delivered = 605kWh
Overall COP = 3.96
COP space heat = 4.28
COP hot water = 2.32
Average flow temp = 31.0°C
Outside temp = 11.1°C
Room temp = 19.3°C
Power draw SH = 409W
Power draw DHW = 1.42kW
November 5, 2025 at 2:11 PM
ASHP stats Oct-2025 (via MMSP)
Elec consump = 153kWh of which
DHW = 16kWh, SH = 133kWh
total heat delivered = 605kWh
Overall COP = 3.96
COP space heat = 4.28
COP hot water = 2.32
Average flow temp = 31.0°C
Outside temp = 11.1°C
Room temp = 19.3°C
Power draw SH = 409W
Power draw DHW = 1.42kW
Elec consump = 153kWh of which
DHW = 16kWh, SH = 133kWh
total heat delivered = 605kWh
Overall COP = 3.96
COP space heat = 4.28
COP hot water = 2.32
Average flow temp = 31.0°C
Outside temp = 11.1°C
Room temp = 19.3°C
Power draw SH = 409W
Power draw DHW = 1.42kW
Reposted by Dominic McCann
We used 290.4kWh of grid⚡ in Oct-2025 with
~7kWh for EV
181kWh general household activity
153.8kWh for ASHP
Delivering 605kWh heat & DHW
our PV generated 103kWh, with 101kWh self consump & ~2kWh export
Total cost of elec: £64.62 inc VAT and standing charge (but excluding FiT payments for our PV).
~7kWh for EV
181kWh general household activity
153.8kWh for ASHP
Delivering 605kWh heat & DHW
our PV generated 103kWh, with 101kWh self consump & ~2kWh export
Total cost of elec: £64.62 inc VAT and standing charge (but excluding FiT payments for our PV).
November 3, 2025 at 11:24 AM
We used 290.4kWh of grid⚡ in Oct-2025 with
~7kWh for EV
181kWh general household activity
153.8kWh for ASHP
Delivering 605kWh heat & DHW
our PV generated 103kWh, with 101kWh self consump & ~2kWh export
Total cost of elec: £64.62 inc VAT and standing charge (but excluding FiT payments for our PV).
~7kWh for EV
181kWh general household activity
153.8kWh for ASHP
Delivering 605kWh heat & DHW
our PV generated 103kWh, with 101kWh self consump & ~2kWh export
Total cost of elec: £64.62 inc VAT and standing charge (but excluding FiT payments for our PV).
We used 290.4kWh of grid⚡ in Oct-2025 with
~7kWh for EV
181kWh general household activity
153.8kWh for ASHP
Delivering 605kWh heat & DHW
our PV generated 103kWh, with 101kWh self consump & ~2kWh export
Total cost of elec: £64.62 inc VAT and standing charge (but excluding FiT payments for our PV).
~7kWh for EV
181kWh general household activity
153.8kWh for ASHP
Delivering 605kWh heat & DHW
our PV generated 103kWh, with 101kWh self consump & ~2kWh export
Total cost of elec: £64.62 inc VAT and standing charge (but excluding FiT payments for our PV).
November 3, 2025 at 11:24 AM
We used 290.4kWh of grid⚡ in Oct-2025 with
~7kWh for EV
181kWh general household activity
153.8kWh for ASHP
Delivering 605kWh heat & DHW
our PV generated 103kWh, with 101kWh self consump & ~2kWh export
Total cost of elec: £64.62 inc VAT and standing charge (but excluding FiT payments for our PV).
~7kWh for EV
181kWh general household activity
153.8kWh for ASHP
Delivering 605kWh heat & DHW
our PV generated 103kWh, with 101kWh self consump & ~2kWh export
Total cost of elec: £64.62 inc VAT and standing charge (but excluding FiT payments for our PV).
Reposted by Dominic McCann
Really happy to have Home Assistant up & running on this Pi5 with NVMe drive. This is an upgrade from previous Pi4 with SD card. Thanks to Matt & Ellis at Carbon.Coop for help restoring backup file of Home Assistant instance. All working very smoothly.
October 31, 2025 at 8:46 AM
Really happy to have Home Assistant up & running on this Pi5 with NVMe drive. This is an upgrade from previous Pi4 with SD card. Thanks to Matt & Ellis at Carbon.Coop for help restoring backup file of Home Assistant instance. All working very smoothly.
Reposted by Dominic McCann
While you were sleeping, #windEnergy reached 64% of the National Grid's electricity demand. https://winderful.uk
November 1, 2025 at 9:00 AM
While you were sleeping, #windEnergy reached 64% of the National Grid's electricity demand. https://winderful.uk
Really happy to have Home Assistant up & running on this Pi5 with NVMe drive. This is an upgrade from previous Pi4 with SD card. Thanks to Matt & Ellis at Carbon.Coop for help restoring backup file of Home Assistant instance. All working very smoothly.
October 31, 2025 at 8:46 AM
Really happy to have Home Assistant up & running on this Pi5 with NVMe drive. This is an upgrade from previous Pi4 with SD card. Thanks to Matt & Ellis at Carbon.Coop for help restoring backup file of Home Assistant instance. All working very smoothly.
Reposted by Dominic McCann
The main cause of the noise is something that will, sooner or later, hit every part of the network: “rail corrugation”.
You aren’t imagining it: London's Tube is getting louder.
You aren’t imagining it: London's Tube is getting louder.
No, you aren’t imagining it: the Tube is getting louder
I SAID, THE TUBE *IS* GETTING LOUDER.
jonn.substack.com
October 19, 2025 at 9:38 AM
The main cause of the noise is something that will, sooner or later, hit every part of the network: “rail corrugation”.
You aren’t imagining it: London's Tube is getting louder.
You aren’t imagining it: London's Tube is getting louder.
Reposted by Dominic McCann
3. Main takeaways, continued:
- Retail electricity prices, and price increases, are mostly about spending on poles and wires, not energy supply
- Renewables don't correlate with higher prices, but dependence on natural gas pretty clearly does
- Retail electricity prices, and price increases, are mostly about spending on poles and wires, not energy supply
- Renewables don't correlate with higher prices, but dependence on natural gas pretty clearly does
October 19, 2025 at 9:33 PM
3. Main takeaways, continued:
- Retail electricity prices, and price increases, are mostly about spending on poles and wires, not energy supply
- Renewables don't correlate with higher prices, but dependence on natural gas pretty clearly does
- Retail electricity prices, and price increases, are mostly about spending on poles and wires, not energy supply
- Renewables don't correlate with higher prices, but dependence on natural gas pretty clearly does
Russia’s Coal Collapse Marks The End Of Fossil Fuels’ Post-War Illusion.
Global energy markets are pivoting toward renewables and storage.
www.forbes.com/sites/we-don...
Global energy markets are pivoting toward renewables and storage.
www.forbes.com/sites/we-don...
Russia’s Coal Collapse Marks The End Of Fossil Fuel Post-War Illusion
Russia’s Coal Collapse signals the end of the fossil era. From bankrupt mines to battery booms, the global energy transition is accelerating. Facing political resistance.
www.forbes.com
October 20, 2025 at 8:47 AM
Russia’s Coal Collapse Marks The End Of Fossil Fuels’ Post-War Illusion.
Global energy markets are pivoting toward renewables and storage.
www.forbes.com/sites/we-don...
Global energy markets are pivoting toward renewables and storage.
www.forbes.com/sites/we-don...
Brexit "dividend" here, UK plastic waste (imperialism) exports to developing countries rose 84% in a year, data shows www.theguardian.com/environment/...
UK plastic waste exports to developing countries rose 84% in a year, data shows
Campaigners say increase in exports mostly to Malaysia and Indonesia is ‘unethical and irresponsible waste imperialism’
www.theguardian.com
October 10, 2025 at 7:37 AM
Brexit "dividend" here, UK plastic waste (imperialism) exports to developing countries rose 84% in a year, data shows www.theguardian.com/environment/...
Reposted by Dominic McCann
In the first half of 2025, renewables became the biggest source of global electricity for the first time, as wind & solar growth exceeded global demand growth
Shocking that it's China & India leading - EU & USA have fossil power growing
ember-energy.org/latest-insig...
Shocking that it's China & India leading - EU & USA have fossil power growing
ember-energy.org/latest-insig...
October 7, 2025 at 7:30 AM
In the first half of 2025, renewables became the biggest source of global electricity for the first time, as wind & solar growth exceeded global demand growth
Shocking that it's China & India leading - EU & USA have fossil power growing
ember-energy.org/latest-insig...
Shocking that it's China & India leading - EU & USA have fossil power growing
ember-energy.org/latest-insig...
Reposted by Dominic McCann
Cottam coal power station demolished today (the cooling towers).
Will be replaced by a solar farm, using the same grid connection.
Will be replaced by a solar farm, using the same grid connection.
August 14, 2025 at 6:55 PM
Cottam coal power station demolished today (the cooling towers).
Will be replaced by a solar farm, using the same grid connection.
Will be replaced by a solar farm, using the same grid connection.
Reposted by Dominic McCann
Heat pump monitoring for last 12months via OpenEnergyMon. These 2 visualizations show the hot water and space heating uses as separate charts.
September 17, 2025 at 11:07 AM
Heat pump monitoring for last 12months via OpenEnergyMon. These 2 visualizations show the hot water and space heating uses as separate charts.
Reposted by Dominic McCann
We used 262.7kWh of grid⚡ in Sep-2025 with
105kWh for EV
187kWh general household activity
86.4kWh for ASHP
Delivering 347kWh heat & DHW
our PV generated 240kWh, with 221kWh self consump & ~18kWh export
Total cost of elec: £45.72 inc VAT and standing charge (but excluding FiT payments for our PV).
105kWh for EV
187kWh general household activity
86.4kWh for ASHP
Delivering 347kWh heat & DHW
our PV generated 240kWh, with 221kWh self consump & ~18kWh export
Total cost of elec: £45.72 inc VAT and standing charge (but excluding FiT payments for our PV).
October 5, 2025 at 3:16 PM
We used 262.7kWh of grid⚡ in Sep-2025 with
105kWh for EV
187kWh general household activity
86.4kWh for ASHP
Delivering 347kWh heat & DHW
our PV generated 240kWh, with 221kWh self consump & ~18kWh export
Total cost of elec: £45.72 inc VAT and standing charge (but excluding FiT payments for our PV).
105kWh for EV
187kWh general household activity
86.4kWh for ASHP
Delivering 347kWh heat & DHW
our PV generated 240kWh, with 221kWh self consump & ~18kWh export
Total cost of elec: £45.72 inc VAT and standing charge (but excluding FiT payments for our PV).
We used 262.7kWh of grid⚡ in Sep-2025 with
105kWh for EV
187kWh general household activity
86.4kWh for ASHP
Delivering 347kWh heat & DHW
our PV generated 240kWh, with 221kWh self consump & ~18kWh export
Total cost of elec: £45.72 inc VAT and standing charge (but excluding FiT payments for our PV).
105kWh for EV
187kWh general household activity
86.4kWh for ASHP
Delivering 347kWh heat & DHW
our PV generated 240kWh, with 221kWh self consump & ~18kWh export
Total cost of elec: £45.72 inc VAT and standing charge (but excluding FiT payments for our PV).
October 5, 2025 at 3:16 PM
We used 262.7kWh of grid⚡ in Sep-2025 with
105kWh for EV
187kWh general household activity
86.4kWh for ASHP
Delivering 347kWh heat & DHW
our PV generated 240kWh, with 221kWh self consump & ~18kWh export
Total cost of elec: £45.72 inc VAT and standing charge (but excluding FiT payments for our PV).
105kWh for EV
187kWh general household activity
86.4kWh for ASHP
Delivering 347kWh heat & DHW
our PV generated 240kWh, with 221kWh self consump & ~18kWh export
Total cost of elec: £45.72 inc VAT and standing charge (but excluding FiT payments for our PV).
Heat pump monitoring for last 12months via OpenEnergyMon. These 2 visualizations show the hot water and space heating uses as separate charts.
September 17, 2025 at 11:07 AM
Heat pump monitoring for last 12months via OpenEnergyMon. These 2 visualizations show the hot water and space heating uses as separate charts.