Open-source tools for energy monitoring and analysis. Tweets by @glynhudson & @trystanlea
North Wales, UK
Joined June 2011
- Tweets6K
- Following377
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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! ❄️🤞
Honoured to be nominated! 🤗
It's that time of year again. The Oscars of Open Source are back in their 7th year, in London.
Announcing @Openenergymon, @Raspberry_Pi, and @RepRapLtd have been shortlisted as finalists in the Hardware category of The OpenUK Awards, sponsored by @lowRISC.
We’ll celebrate the shortlist and announce the winners, taking place on 5th November at our annual Black Tie Gala Dinner and Awards ceremony at the House of Commons.
Shortlisted nominees, our sponsors and volunteers will be invited to join this event. Tickets are not sold, and the evening is made possible by the generosity of our sponsors: @RedBadgerTeam, @lowRISC, @ODIHQ, @controlplaneio, @Arm, Iain G. Mitchell KC, @Uber, @nolabs_ai, kioko, and @openxchange.
See the full shortlist: openuk.uk/awards/
OpenEnergyMonitor retweeted
Oh loving the new @Openenergymon interface
Dragable graphs and much cleaner interface
OpenEnergyMonitor retweeted
The Co2 data was from our new @Openenergymon emonTH3 which will be avilable for purchase very soon
OpenEnergyMonitor retweeted
Octopus Agile Outgoing is a great export tariff, especailly for a West facing array, in that past month I've average 16p/kWh, this is for direct solar export no battery, separately I've averaged 23.4p/kWh for battery export, graphs from @Openenergymon MyElectricFlow dashboard
OpenEnergyMonitor retweeted
Some big boi (50mm!) water meter being configured today for a farm water pump monitoring system 🌊@Openenergymon
OpenEnergyMonitor retweeted
❄️ Even though the summer heat is behind us, cooling is something more and more of us will be planning for in the future. I recently joined the @myGrantUK Podcast to discuss cooling options with air-to-water (A2W) heat pumps youtube.com/watch?v=9vg1xUji…
OpenEnergyMonitor retweeted
Heat Pump vs Boiler: Which Is Cheaper to Run?
Using @OctopusEnergy tariff pricing and data from 244 heat pumps on @Openenergymon (heatpumpmonitor.org)
Forget the Spark Gap, it's all about the Unit Cost of Useful Heat. 👍
youtu.be/aZ7P8-0aU3s
OpenEnergyMonitor retweeted
Octopus Agile Outgoing seems to be the best PV export tariff, today I averaged 16p/kWh of PV export and 25p/kWh of battery export, my all-time average since getting PV in June is 13.3p/kWh export, graphs from @Openenergymon MyElectricFlow dashboard
OpenEnergyMonitor retweeted
Setting up a large deployment of wireless MID CT meters using Lora RF at @Openenergymon today 🛜
OpenEnergyMonitor retweeted
New @Openenergymon HeatPumpMonitor front page is live! 👀🥳 heatpumpmonitor.org/
It's very exciting to provide more insight to the data on HeatPumpMonitor, this has been a big focus for @TrystanLea 👏
OpenEnergyMonitor retweeted
Thanks to @Zarch1972 for having myself @TrystanLea as a guest on his excellent Energy Unwrapped Podcast, we talked about how @Openenergymon came to be and the early days of heat pumps with @JohnCantor2 🎙️😃 youtu.be/BjiylCYpx1U?si=Rq_3…
OpenEnergyMonitor retweeted
Me. Talking about solar and heat pump performance.
What a time to be alive. 🤣
Monitoring by @Openenergymon
April 2026 Solar & ASHP Stats
☀️ 590 kWh solar generation (second best April since 2018)
🔥 Heat pump COP of 4.7 (470%) for heating
⚡ Solar generated more than total heat pump usage
💷 Just £10 total electricity cost (even with ~950 EV miles!)
youtube.com/watch?v=uYbPpshI…
OpenEnergyMonitor retweeted
📌Looking for a heat pump installer with a proven track record of high-efficiency installations? Or are you an installer looking to showcase your work? Check out the HeatPumpMonitor map heatpumpmonitor.org/map?filt…
📊 Data from @Openenergymon L3 Bundle shop.openenergymonitor.com/l…
We are thrilled to announce that the emonPi3 and emonTx6 energy monitoring hardware are now finally available in our shop! See forum post 🥳community.openenergymonitor.…
OpenEnergyMonitor retweeted
📸 New Feature: HeatPumpMonitor.org now supports uploading photos of systems 😃
We've started stocking heat pump specific Type-B RCDs and associated Doepke switch gear which meet the all the manufacturer requirements including Vaillant > 1kHz tripping characterises shop.openenergymonitor.com/c…
The Doepke RCD & MCB covering the requirements for the @vaillantuk heat pumps supplied by @Openenergymon
OpenEnergyMonitor retweeted
This system has full @Openenergymon independent Level 3 Monitoring, data is publicly available on HPM here: heatpumpmonitor.org/system/v…
OpenEnergyMonitor retweeted
Thanks to @tom_bray for this excellent video about @Openenergymon HeatPumpMonitor 😀 👏youtube.com/watch?v=2dPZTLVH…