OpenEnergyMonitor

Level 3 Heat Pump Monitoring Bundle (emonHP) Open-source hardware tools for energy monitoring and visualisation

This system has got an
@openenergymon.bsky.social Level 3 independent monitoring system installed shop.openenergymonitor.com/level-3-heat...

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! ❄️ 🤞

📸 New Feature: heatpumpmonitor.org now supports uploading photos of systems 😃

I really enjoyed recording this podcast, it was great to chat to Gregg about @openenergymon.bsky.social all the other fun stuff e.g heat pumps and EVs 😀

This was recorded at the @fullychargedshow.bsky.social Everything Electric show, which explains why I was losing my voice!

The emonPi2 and emonTx V5 electricity monitors are available from our web-store shop.openenergymonitor.com/energy-monit...

YouTube video by OpenEnergyMonitor OpenEnergyMonitor Electricity Monitor Installation

Here's an updated installation video for the emonPi2 and emonTx V5 for electricity monitoring using clip on CT sensors youtu.be/XAJV5zDJF_4

Q1 2025 heat pump stats:

Energy in: 2,553 kWh @ 16.87 p/kWh avg
Heat out: 8,598 kWh

Avg COP: 3.37
Avg cost of heat delivered: 5.01 p/kWh [~31% cheaper than 85% efficient gas boiler @ 6.19p/kWh]

Monitoring by @openenergymon.bsky.social
My system details here: heatpumpmonitor.org/system/view?...

Studies that are already out of date by the time they get into circulation is part of them problem.

Live results from @openenergymon.bsky.social for real-world heat-pumps illustrate what is possible, right now:

heatpumpmonitor.org

We've achieve a COP of 4.1 this week here in rural Scotland.

This cost includes remote support and lifetime data logging. By default, monitoring data is private, optionally you can choose to contribute to the open dataset of real work heat pump performance by making it public on heatpumpmonitor.org 🙏

Level 3 Heat Pump Monitoring Bundle (emonHP) Open-source hardware tools for energy monitoring and visualisation

We've managed to reduce the price of our popular Level 3 Heat Pump Monitoring Bundle 🥳
- up to 10kW £462 +VAT
- up to 17kW £539 + VAT
shop.openenergymonitor.com/level-3-heat...

This tutorial will walk you through configuring Home Assistant to send your heat pump entities to emoncms.org. It’ll also show you how to install and configu... Tutorial: Heat Pump Monitoring using emoncms and Home Assistant (heatpumpmonitor.org)

Tutorial: Heat Pump Monitoring using emoncms and Home Assistant for HeatPumpMonitor

youtu.be/VOGLjONINqM

@openenergymon.bsky.social @home-assistant.io #energymonitor #ashp #heatpump #lowcarbonheating #cosy6 #espaltherma

Advanced Filtering on heatpumpmonitor.org Hi everyone, Advanced filtering is now live on heatpumpmonitor.org - here’s what’s new! Additional filtering operators New side panel for viewing and editing filters Search or look up filter ...

Thanks to the new Advanced Filtering on heatpumpmonitor.org the boiler vs heat pump comparisons are now more precise 😍

See more:
community.openenergymonitor.org/t/advanced-f...

@openenergymon.bsky.social

The Heat Pump Unconference 2025 Come join us at The Heat Pump Unconference 2025 for a day of hands-on workshops and engaging discussions.

New speakers added to Heat Pump Unconference June 23 2025
www.eventbrite.co.uk/e/the-heat-p...
@openenergymon.bsky.social @l-bow.bsky.social @petereastern.bsky.social @nestauk.bsky.social @guynewey.bsky.social @protons4b.bsky.social

30kW SolarEdge PV and 65kWh of GivEnergy Commercial battey system is now up and running, with @openenergymon.bsky.social monitoring 😀

Heat pumps are on site! Our shared office space will soon be heated by 2 x 16kW @viessmanncs.bsky.social ASHPs, of course with @openenergymon.bsky.social monitoring, no more LPG 😀

Proud to have played a small part in this, heat pump monitoring using @openenergymon.bsky.social has resulted in £100/month bill saving 👍

I really enjoyed this episode of the @TransitionShow.mastodon.energy.ap.brid.gy podcast with @richardlowes.bsky.social, thanks for the @openenergymon.bsky.social heatpumpmonitor.org mention, "brings an element of fun into heatpumps" 😁

I am excited that one of my heat pump installs is now on @openenergymon.bsky.social
Simply the best heat pump monitoring software.
You can view the live data here.
emoncms.org/app/view?nam...

Agree! To me I think we should all have @openenergymon.bsky.social, MCS should improve the minimum scop from 2.8 to 3.6 and then consumers should have better protection to get installers back to fix problems if they aren’t meeting these standards

🙌

Here's a video about an interesting ASHP installation I was involved with in a solid stone cottage, the combination of insulation, air tightness, UFH and MVHR has made for a very efficient low-cost heating system with a SCOP of 5.1 for space heating 😀 📈 youtu.be/YouOLThHSNk?...

This is part of a big electrification and decarbonisation project for the building to remove deoendancy on LPG, reduce running costs and increase energy security; this will involve 2x 16kW Viessmann ASHP cascade, 69kWh of GivEnergy storage, 30kW of PV and @openenergymon.bsky.social monitoring 😀

The Solar, Battery and Heat Pump "Holy Trinity" doing their thing today.

It's been pretty chilly outside but the winter sunshine means we are heating the house from the roof.

Monitoring by @openenergymon.bsky.social and Home Assistant

This Skill Builder heatpump now one of the best performing systems in the country thanks to a Heat Geek transformation! Here's the live and historic data monitored independently by @openenergymon.bsky.social 👏 heatpumpmonitor.org/system/view?...

Octopus Agile has generally been the best tariff for a heat pump, average over past 12 months

We've added Octopus Cosy and E.ON Next heat pump tariffs to HPM, the combination of smart tariffs and high performing heat pump installation can deliver cost of heat at less than 4p/kWh! 🤯🤑

Over-sized heat loss = over estimated design temperatures I wanted to share some thoughts about where I think we are with heat pump system design in the UK as we start 2025. There is a large performance gap between heat pumps that have been designed, instal...

Current issues with heatpump installations: good write up by @trystanlea.bsky.social on the @openenergymon.bsky.social forums community.openenergymonitor.org/t/over-sized...

Interesting podcast about the Electrification Of Heat government heat pump trial results with Katrina Young from @energysyscat.bsky.social and @trystanlea.bsky.social from @openenergymon.bsky.social

For anyone with a heatpump, Agile is usually the best tariff, you can explore the costs of running a heatpump using different tariffs on the @openenergymon.bsky.social Heatpumpmonitor.org cost page 🤓 heatpumpmonitor.org?mode=costs&t...

A review of 700 heat pump hot water runs in 2024 | Energy Stats UK Throughout the whole of 2024 I ran my 5kW Vaillant Arotherm heat pump in Eco hot water mode, heating our 250L Mixergy cylinder in Sheffield.

New blog post: review of 700 heat pump hot water runs in 2024

5kW Vaillant and 250L Mixergy cylinder

Better COP daytime or night?

Better COP from empty or from full?

energy-stats.uk/a-review-of-...

Made possible by @openenergymon.bsky.social