Glyn Hudson
@glynhudson.bsky.social
Co-founder of @openenergymon, passionate about energy transition and low carbon travel. Love rock climbing, cycling & outdoor adventures, 9yrs #FlightFree https://openenergymonitor.org https://heatpumpmonitor.org https://zerocarbonadventures.co.uk/
📸 New Feature: heatpumpmonitor.org now supports uploading photos of systems 😃
November 13, 2025 at 1:29 PM
📸 New Feature: heatpumpmonitor.org now supports uploading photos of systems 😃
Another insight from the data is that the age of the property and the amount of insulation makes very little difference to the performance of the heat pump
November 4, 2025 at 11:54 AM
Another insight from the data is that the age of the property and the amount of insulation makes very little difference to the performance of the heat pump
This was a stand-out slide, showing a comparison between two identical heat pumps: one running low-and-slow compared to another running at high temperature for short periods.
💡Correct commissioning and control setup is very important
💡Correct commissioning and control setup is very important
November 4, 2025 at 11:54 AM
This was a stand-out slide, showing a comparison between two identical heat pumps: one running low-and-slow compared to another running at high temperature for short periods.
💡Correct commissioning and control setup is very important
💡Correct commissioning and control setup is very important
Great stuff! @NewarkCylinders Heat Geek super cylinders are very good, my heatpump with this cylinder is one of the best performing systems on Heatpumpmonitor.org over the last 90 days, the standard Newark cylinders also look good and are very good quality
October 29, 2025 at 1:49 AM
Great stuff! @NewarkCylinders Heat Geek super cylinders are very good, my heatpump with this cylinder is one of the best performing systems on Heatpumpmonitor.org over the last 90 days, the standard Newark cylinders also look good and are very good quality
I've just documented in an
@openenergymon.bsky.social
forum post the various methods to read on-board data from the Grant Aerona HP290 heat pump, the data is not very accurate (ignore COP values 😂), but it's still interesting to log community.openenergymonitor.org/t/reading-on...
@openenergymon.bsky.social
forum post the various methods to read on-board data from the Grant Aerona HP290 heat pump, the data is not very accurate (ignore COP values 😂), but it's still interesting to log community.openenergymonitor.org/t/reading-on...
October 20, 2025 at 10:21 AM
I've just documented in an
@openenergymon.bsky.social
forum post the various methods to read on-board data from the Grant Aerona HP290 heat pump, the data is not very accurate (ignore COP values 😂), but it's still interesting to log community.openenergymonitor.org/t/reading-on...
@openenergymon.bsky.social
forum post the various methods to read on-board data from the Grant Aerona HP290 heat pump, the data is not very accurate (ignore COP values 😂), but it's still interesting to log community.openenergymonitor.org/t/reading-on...
I've finally got round to editing a video from our EV camper van trip In January 😅
In this episode, we explore Portugal and experience a very dangerous campsite hookup issue 😬https://youtu.be/n9zQ2Ngftpg
In this episode, we explore Portugal and experience a very dangerous campsite hookup issue 😬https://youtu.be/n9zQ2Ngftpg
October 13, 2025 at 12:29 PM
I've finally got round to editing a video from our EV camper van trip In January 😅
In this episode, we explore Portugal and experience a very dangerous campsite hookup issue 😬https://youtu.be/n9zQ2Ngftpg
In this episode, we explore Portugal and experience a very dangerous campsite hookup issue 😬https://youtu.be/n9zQ2Ngftpg
My two favourite things 😀
October 3, 2025 at 10:22 PM
My two favourite things 😀
It's arrived! Thanks to Mars from Renewable Heating Hub for sending over a copy of his new book. It's a fantastic resource for homeowners considering a heatpump, or trying to optimise an existing system. I'm proud to have contributed in a small way 😀
September 30, 2025 at 10:58 PM
It's arrived! Thanks to Mars from Renewable Heating Hub for sending over a copy of his new book. It's a fantastic resource for homeowners considering a heatpump, or trying to optimise an existing system. I'm proud to have contributed in a small way 😀
Yes, we can do solar monitoring with our emonpi energy monitor with clip on CT's docs.openenergymonitor.org/applications...
September 30, 2025 at 10:31 PM
Yes, we can do solar monitoring with our emonpi energy monitor with clip on CT's docs.openenergymonitor.org/applications...
There's not many 10-year-old cars with software this good, or 130kW+ charging speeds! The combination of autopilot and free charging make this the best road trip EV, Tesla was so far ahead of other manufacturers back in 2015, it's a shame they've lost their way a bit...
September 13, 2025 at 9:40 AM
There's not many 10-year-old cars with software this good, or 130kW+ charging speeds! The combination of autopilot and free charging make this the best road trip EV, Tesla was so far ahead of other manufacturers back in 2015, it's a shame they've lost their way a bit...
This system has a full @openenergymon.bsky.social
independent Level 3 Monitoring, data is publicly available on HPM heatpumpmonitor.org/system/view?...
independent Level 3 Monitoring, data is publicly available on HPM heatpumpmonitor.org/system/view?...
September 8, 2025 at 9:07 AM
This system has a full @openenergymon.bsky.social
independent Level 3 Monitoring, data is publicly available on HPM heatpumpmonitor.org/system/view?...
independent Level 3 Monitoring, data is publicly available on HPM heatpumpmonitor.org/system/view?...
We're on the verge of the heating season in North Wales, temperature is dropping to 11C, my newly installed Grant Aerona 290 heatpump has started trickling some heat in, impressive low modulation of 2.2kW (366W electrical) from this 9kW unit, COP of 5.7 at the moment 👍
September 8, 2025 at 9:07 AM
We're on the verge of the heating season in North Wales, temperature is dropping to 11C, my newly installed Grant Aerona 290 heatpump has started trickling some heat in, impressive low modulation of 2.2kW (366W electrical) from this 9kW unit, COP of 5.7 at the moment 👍
It's impressive that the Grant 9kW R290 is able to modulate down to under 400W of electrical input and 2.5kW of heat output, @openenergymon.bsky.social monitoring data from my system is available publicly on HPM: heatpumpmonitor.org/system/view?...
August 27, 2025 at 11:33 PM
It's impressive that the Grant 9kW R290 is able to modulate down to under 400W of electrical input and 2.5kW of heat output, @openenergymon.bsky.social monitoring data from my system is available publicly on HPM: heatpumpmonitor.org/system/view?...
The new FRV lock shield valves from Firepower are very useful to see exactly how much flow rate each radiator is getting, this makes the balancing process easy and precise 👍 www.firepowerheating.co.uk/frv
August 27, 2025 at 11:33 PM
The new FRV lock shield valves from Firepower are very useful to see exactly how much flow rate each radiator is getting, this makes the balancing process easy and precise 👍 www.firepowerheating.co.uk/frv
I've finally finished upgrading radiators and filling my space heating circuit, 10 rads and a towel rail have been upgraded, all piped TBOE to maximise output, existing rads were old single panel non convector and in poor condition, but I was able to re-use existing pipework 😃
August 27, 2025 at 11:33 PM
I've finally finished upgrading radiators and filling my space heating circuit, 10 rads and a towel rail have been upgraded, all piped TBOE to maximise output, existing rads were old single panel non convector and in poor condition, but I was able to re-use existing pipework 😃
One of my photos has made it onto the front cover of the new North Wales Rock climbing guidebook! 🥳
August 18, 2025 at 10:01 PM
One of my photos has made it onto the front cover of the new North Wales Rock climbing guidebook! 🥳
Good scenes at The Diamond this week! 🧗🌊
August 5, 2025 at 4:47 PM
Good scenes at The Diamond this week! 🧗🌊
I've just published a LinkedIn post on the design and installation process for my home heat pump 😀 @newarkcylinders.bsky.social @openenergymon.bsky.social www.linkedin.com/pulse/design...
August 2, 2025 at 3:48 PM
I've just published a LinkedIn post on the design and installation process for my home heat pump 😀 @newarkcylinders.bsky.social @openenergymon.bsky.social www.linkedin.com/pulse/design...
I've just got my dad bee hive temperature monitor back up and running, we've got 13 years of almost unbroken data on the @openenergymon.bsky.social Emoncms, it's fascinating how the temperature profile in the hive changes during the year 🐝 emoncms.org/beehive/live
August 2, 2025 at 11:04 AM
I've just got my dad bee hive temperature monitor back up and running, we've got 13 years of almost unbroken data on the @openenergymon.bsky.social Emoncms, it's fascinating how the temperature profile in the hive changes during the year 🐝 emoncms.org/beehive/live
Agree, buffers not required and should be avoided for most installations, I've fitted a 2-port volumiser on the CH return, this just adds system volume without hydronic separation or distortion, same physical tank, just piped differently
July 27, 2025 at 12:26 AM
Agree, buffers not required and should be avoided for most installations, I've fitted a 2-port volumiser on the CH return, this just adds system volume without hydronic separation or distortion, same physical tank, just piped differently
Next on the job list is to upgrade some radiators... 🥵
July 25, 2025 at 11:08 PM
Next on the job list is to upgrade some radiators... 🥵
Thanks to my apprentice for his 'help' during the installation! 😅
July 25, 2025 at 11:08 PM
Thanks to my apprentice for his 'help' during the installation! 😅
The new Grant Smart touch controller is great, a big improvement over the old Arona controller, it's very intuitive to use, I really like this overview display
July 25, 2025 at 11:08 PM
The new Grant Smart touch controller is great, a big improvement over the old Arona controller, it's very intuitive to use, I really like this overview display
To put this into perspective the ASHP used 1.4kWh to deliver 6.3kWh of hot water, on today's
@octopus.energy Agile tariff this cost 19.6p for two days worth of showers and dish washing! Data from @openenergymon.bsky.social independent monitoring 😁 shop.openenergymonitor.com/level-3-heat...
@octopus.energy Agile tariff this cost 19.6p for two days worth of showers and dish washing! Data from @openenergymon.bsky.social independent monitoring 😁 shop.openenergymonitor.com/level-3-heat...
July 25, 2025 at 11:08 PM
To put this into perspective the ASHP used 1.4kWh to deliver 6.3kWh of hot water, on today's
@octopus.energy Agile tariff this cost 19.6p for two days worth of showers and dish washing! Data from @openenergymon.bsky.social independent monitoring 😁 shop.openenergymonitor.com/level-3-heat...
@octopus.energy Agile tariff this cost 19.6p for two days worth of showers and dish washing! Data from @openenergymon.bsky.social independent monitoring 😁 shop.openenergymonitor.com/level-3-heat...