# \#emoncms **URL:** https://community.openenergymonitor.org/tag/emoncms/3.md [Latest](https://community.openenergymonitor.org/latest.md) · [Categories](https://community.openenergymonitor.org/categories.md) · [Tags](https://community.openenergymonitor.org/tags.md) --- ## [WHy can't I select a virtual feed in an app?](https://community.openenergymonitor.org/t/why-cant-i-select-a-virtual-feed-in-an-app/30608)
**Author:** [@Martin\_Robinson](https://community.openenergymonitor.org/u/Martin_Robinson)\ **Replies:** 5\ **Last updated:** [6 November 2026 15:59 UTC](https://community.openenergymonitor.org/t/why-cant-i-select-a-virtual-feed-in-an-app/30608 "2026-11-06T15:59:27Z")
I’m trying to get the MyElectricFlow app configured right… It needs a battery power feed with positive values for discharge. My EmonPi2 is saving a battery power feed as measured direct from the CT, but with the wrong … --- ## [Can I export half-hourly electricity consumption from emoncms.org?](https://community.openenergymonitor.org/t/can-i-export-half-hourly-electricity-consumption-from-emoncms-org/30422)
**Author:** [@Dan\_Grey](https://community.openenergymonitor.org/u/Dan_Grey)\ **Replies:** 4\ **Last updated:** [11 October 2026 17:37 UTC](https://community.openenergymonitor.org/t/can-i-export-half-hourly-electricity-consumption-from-emoncms-org/30422 "2026-10-11T17:37:49Z")
I feed data to emoncms.org from the built-in monitoring on my Vaillant. Can I export half-hourly electricity consumption as say a CSV? I’d like to be able to feed my battery simulation with my heat pump’s actual energy u… --- ## [Request for brine temperature data from ground-source HeatPumpMonitor systems](https://community.openenergymonitor.org/t/request-for-brine-temperature-data-from-ground-source-heatpumpmonitor-systems/30290)
**Author:** [@mcolahi](https://community.openenergymonitor.org/u/mcolahi)\ **Replies:** 6\ **Last updated:** [30 September 2026 09:36 UTC](https://community.openenergymonitor.org/t/request-for-brine-temperature-data-from-ground-source-heatpumpmonitor-systems/30290 "2026-09-30T09:36:16Z")
Hello everyone, I am a doctoral researcher using public HeatPumpMonitor data to validate thermodynamic heat pump models. I am looking for ground- or water-source heat pump datasets that include source-side measurements… --- ## [Help creating a process](https://community.openenergymonitor.org/t/help-creating-a-process/30356)
**Author:** [@phamiltonsmith](https://community.openenergymonitor.org/u/phamiltonsmith)\ **Replies:** 3\ **Last updated:** [29 September 2026 12:40 UTC](https://community.openenergymonitor.org/t/help-creating-a-process/30356 "2026-09-29T12:40:50Z")
Hi, I have an AC mains voltage input that normally ranges anywhere from say 105 to 115 V. Sometimes it can be 0 V. This value is logged to a feed. Any value above say 50v means the grid is available, anything less than … --- ## [Emoncms 11.18.0 vue.js error in Post Process](https://community.openenergymonitor.org/t/emoncms-11-18-0-vue-js-error-in-post-process/30337)
**Author:** [@mortstar](https://community.openenergymonitor.org/u/mortstar)\ **Replies:** 2\ **Last updated:** [17 September 2026 18:14 UTC](https://community.openenergymonitor.org/t/emoncms-11-18-0-vue-js-error-in-post-process/30337 "2026-09-17T18:14:35Z")
When opening Post Process in v11.18.0 of emoncms I’m getting an error “Vue is not defined”. Looking at browser console that’s because /Lib/vue.min.js returns 404. --- ## [Embed function not appearing to work](https://community.openenergymonitor.org/t/embed-function-not-appearing-to-work/30091)
**Author:** [@Andybeevers](https://community.openenergymonitor.org/u/Andybeevers)\ **Replies:** 2\ **Last updated:** [12 June 2026 16:24 UTC](https://community.openenergymonitor.org/t/embed-function-not-appearing-to-work/30091 "2026-06-12T16:24:16Z")
I have created several dashboards to embed in a web page I use in the house for quick viewing. It has worked for a long time ( years) but I have recently upgraded the system - I have my own emonpi. The system now displa… --- ## [Error updating EmonSD / EmonCMS from 11.13.4 to current](https://community.openenergymonitor.org/t/error-updating-emonsd-emoncms-from-11-13-4-to-current/30068)
**Author:** [@Vster](https://community.openenergymonitor.org/u/Vster)\ **Replies:** 6\ **Last updated:** [9 June 2026 21:12 UTC](https://community.openenergymonitor.org/t/error-updating-emonsd-emoncms-from-11-13-4-to-current/30068 "2026-06-09T21:12:41Z")
I’m trying to update EmonSD version 11.13.4 (due to MQTT being too old mainly - my new HA build is whining v3.1 is too old!). Running the web UI updater or the component updates gives a long list of log output that ends… --- ## [Dummy Question: Creating feeds from inputs](https://community.openenergymonitor.org/t/dummy-question-creating-feeds-from-inputs/30065)
**Author:** [@Guff666](https://community.openenergymonitor.org/u/Guff666)\ **Replies:** 1\ **Last updated:** [5 June 2026 23:56 UTC](https://community.openenergymonitor.org/t/dummy-question-creating-feeds-from-inputs/30065 "2026-06-05T23:56:05Z")
I’ve been using a local instance of Emoncms for years - and it was setup years ago. Two questions I’ve just setup Emoncms.org and can see data appearing in the INPUTS view. However, the Inputs do not “know” what type o… --- ## [No data or graphs on heatpumpmonitor.org after alterations](https://community.openenergymonitor.org/t/no-data-or-graphs-on-heatpumpmonitor-org-after-alterations/29797)
**Author:** [@Grey-Sheep](https://community.openenergymonitor.org/u/Grey-Sheep)\ **Replies:** 5\ **Last updated:** [28 March 2026 17:00 UTC](https://community.openenergymonitor.org/t/no-data-or-graphs-on-heatpumpmonitor-org-after-alterations/29797 "2026-03-28T17:00:02Z")
Hi newbie here…. I have a Vaillant Arotherm+ 12kW and the eBUS Adapter Shield C6 on the ebus reporting through MQTT to an emoncms setup on Home Assistant. I have learnt SO MUCH about the ebus in the last few weeks … --- ## [Air in System Error caused by Heat Geek Mini Store?](https://community.openenergymonitor.org/t/air-in-system-error-caused-by-heat-geek-mini-store/29768)
**Author:** [@Grey-Sheep](https://community.openenergymonitor.org/u/Grey-Sheep)\ **Replies:** 1\ **Last updated:** [7 March 2026 17:03 UTC](https://community.openenergymonitor.org/t/air-in-system-error-caused-by-heat-geek-mini-store/29768 "2026-03-07T17:03:04Z")
Hi Each, A new setup and feed, based on the eBUS Adapter Shield C6 and linking to emoncms on Home Assistant which then feeds to the public version with a Vaillant 12kW Aerotherm+ in a 1929 bungalow! The emoncms says th… --- ## [New to emoncms. how to create feeds to count hot water and heating kWh usage?](https://community.openenergymonitor.org/t/new-to-emoncms-how-to-create-feeds-to-count-hot-water-and-heating-kwh-usage/29793)
**Author:** [@ksim](https://community.openenergymonitor.org/u/ksim)\ **Replies:** 4\ **Last updated:** [5 March 2026 08:52 UTC](https://community.openenergymonitor.org/t/new-to-emoncms-how-to-create-feeds-to-count-hot-water-and-heating-kwh-usage/29793 "2026-03-05T08:52:43Z")
I am new to EmonCMS, fantastic kit, and fantastic software, big thank you for this. I tried to find an answer but without success. I have inputs from my heat pump electric\_Power, electric\_Energy and pin15 as hot water … --- ## [EmonHub Needs Regular Restarts](https://community.openenergymonitor.org/t/emonhub-needs-regular-restarts/29742)
**Author:** [@macrowe777](https://community.openenergymonitor.org/u/macrowe777)\ **Replies:** 1\ **Last updated:** [15 February 2026 10:40 UTC](https://community.openenergymonitor.org/t/emonhub-needs-regular-restarts/29742 "2026-02-15T10:40:39Z")
I have 3 EmonTX in two separate locations and 1 EmonBase centrally located. On a regular interval (at least every two weeks), the Emonbase reports its not receiving feeds. To resolve the issue i merely have to restart t… --- ## [Trim feeds data?](https://community.openenergymonitor.org/t/trim-feeds-data/29709)
**Author:** [@jingy](https://community.openenergymonitor.org/u/jingy)\ **Replies:** 3\ **Last updated:** [9 February 2026 15:19 UTC](https://community.openenergymonitor.org/t/trim-feeds-data/29709 "2026-02-09T15:19:27Z")
Good morning I have an 2016 emon system (emonpi, 2xTX, emonth) with six years worth of data (100+ feeds) on the current SD card which is looking about full. I have purchased a new preloaded SD from the shop and am in t… --- ## [Ability to add date/time markers with notes that persist](https://community.openenergymonitor.org/t/ability-to-add-date-time-markers-with-notes-that-persist/29672)
**Author:** [@iapainter](https://community.openenergymonitor.org/u/iapainter)\ **Replies:** 3\ **Last updated:** [1 February 2026 12:31 UTC](https://community.openenergymonitor.org/t/ability-to-add-date-time-markers-with-notes-that-persist/29672 "2026-02-01T12:31:44Z")
Many timeseries based systems, particularly analysis tools like log aggregators, let you put markers in the timeline to donate when a specific change started. In the software company I worked in we would always add a mar… --- ## [Can only see COP in certain views](https://community.openenergymonitor.org/t/can-only-see-cop-in-certain-views/29671)
**Author:** [@bingo44r](https://community.openenergymonitor.org/u/bingo44r)\ **Replies:** 0\ **Last updated:** [30 January 2026 23:15 UTC](https://community.openenergymonitor.org/t/can-only-see-cop-in-certain-views/29671 "2026-01-30T23:15:06Z")
Ive moved from an onsite emoncms install to a paid version and, with the 7 feeds im paying for, i think ive got all the details required. For example the total heat output for this week is zero but 60kwh used i feed th… --- ## [Reset a feed daily](https://community.openenergymonitor.org/t/reset-a-feed-daily/28670)
**Author:** [@octoplayer2](https://community.openenergymonitor.org/u/octoplayer2)\ **Replies:** 11\ **Last updated:** [23 January 2026 14:29 UTC](https://community.openenergymonitor.org/t/reset-a-feed-daily/28670 "2026-01-23T14:29:52Z")
Hi I have a CT input providing a kWh feed, but I would like a copy which resets to zero each day (eg midnight). So I can see the daily structure of the input (IE not kWh/d which only seems to give the cumulative total p… --- ## [Missing and repeated data in my EmonPi feed](https://community.openenergymonitor.org/t/missing-and-repeated-data-in-my-emonpi-feed/29620)
**Author:** [@MikeW](https://community.openenergymonitor.org/u/MikeW)\ **Replies:** 1\ **Last updated:** [19 January 2026 16:37 UTC](https://community.openenergymonitor.org/t/missing-and-repeated-data-in-my-emonpi-feed/29620 "2026-01-19T16:37:53Z")
I recently had EmonPi added to monitor my Vaillant Heat pump, set up and installed by my heat pump installers. To me there are two oddities in the data - can anyone tell me if they are normal or if they can be “fixed”? … --- ## [P value providing positive or negative values](https://community.openenergymonitor.org/t/p-value-providing-positive-or-negative-values/29558)
**Author:** [@Sebastian\_Peter](https://community.openenergymonitor.org/u/Sebastian_Peter)\ **Replies:** 8\ **Last updated:** [6 January 2026 23:38 UTC](https://community.openenergymonitor.org/t/p-value-providing-positive-or-negative-values/29558 "2026-01-06T23:38:45Z")
Hi Everyone, I’m from Singapore and new with this EmonTX as I just bought it and installed to measure my Induction Motor Power readings. As you can see in those 2 images below. Image 1 Negative Value in P4 Image… --- ## [EmonCMS WAMP XAMPP login problem](https://community.openenergymonitor.org/t/emoncms-wamp-xampp-login-problem/29575)
**Author:** [@Kiermasz](https://community.openenergymonitor.org/u/Kiermasz)\ **Replies:** 1\ **Last updated:** [6 January 2026 16:56 UTC](https://community.openenergymonitor.org/t/emoncms-wamp-xampp-login-problem/29575 "2026-01-06T16:56:00Z")
Hello, I am writing to you with a problem with installing EmonCMS v11.9.10 on Windows 10x64 21h2 (de-clouded, WU free, MS politics free, and MS safety free). I have already tried everything on WAMP, XAMPP, WebServ 2.1 … --- ## [Need help to find the heatpump\_dhw feed on my local emoncms](https://community.openenergymonitor.org/t/need-help-to-find-the-heatpump-dhw-feed-on-my-local-emoncms/29538)
**Author:** [@Lordflake](https://community.openenergymonitor.org/u/Lordflake)\ **Replies:** 0\ **Last updated:** [29 December 2025 14:09 UTC](https://community.openenergymonitor.org/t/need-help-to-find-the-heatpump-dhw-feed-on-my-local-emoncms/29538 "2025-12-29T14:09:33Z")
Hi all, I’m at the very early stages of trying to get my head around the software and the graphs and I’m confused by which input on local emoncms is for the hot water. If I use the barcode on the front of the emon pi I … --- ## [Two COP values?](https://community.openenergymonitor.org/t/two-cop-values/29499)
**Author:** [@Martin\_Robinson](https://community.openenergymonitor.org/u/Martin_Robinson)\ **Replies:** 6\ **Last updated:** [16 December 2025 12:37 UTC](https://community.openenergymonitor.org/t/two-cop-values/29499 "2025-12-16T12:37:48Z")
Please can someone explain what these two values for COP mean? What is the value in brackets? As an aside - if I take the reported 829kWh for output and divide by the 234kWh for input, I get 3.542, not 3.55. What is… --- ## [New EmonCMS Install giving issues](https://community.openenergymonitor.org/t/new-emoncms-install-giving-issues/29462)
**Author:** [@Marquis](https://community.openenergymonitor.org/u/Marquis)\ **Replies:** 1\ **Last updated:** [2 December 2025 00:22 UTC](https://community.openenergymonitor.org/t/new-emoncms-install-giving-issues/29462 "2025-12-02T00:22:43Z")
Hi, I have installed EmonCMS on a new SD Card using the SD Images. Specifically I installed emonSD-01Feb24.img. The install went well and seemed to be working. The issues are when I try to use the admin panel. I could … --- ## [Emonhub interfacer for Pylontech BMS?](https://community.openenergymonitor.org/t/emonhub-interfacer-for-pylontech-bms/29315)
**Author:** [@Martin\_Robinson](https://community.openenergymonitor.org/u/Martin_Robinson)\ **Replies:** 5\ **Last updated:** [1 December 2025 15:34 UTC](https://community.openenergymonitor.org/t/emonhub-interfacer-for-pylontech-bms/29315 "2025-12-01T15:34:24Z")
Has anyone written an emonhub interfacer for getting data from the Pylontech BMS and logging to EmonCms? I’ve written a standalone python script that reads data from the Pylontech console port and posts to emoncms.org, … --- ## [Octopus Cosy 9 Heat Pump rapid and frequent defrost cycles](https://community.openenergymonitor.org/t/octopus-cosy-9-heat-pump-rapid-and-frequent-defrost-cycles/29447)
**Author:** [@Joules99](https://community.openenergymonitor.org/u/Joules99)\ **Replies:** 11\ **Last updated:** [25 November 2025 14:50 UTC](https://community.openenergymonitor.org/t/octopus-cosy-9-heat-pump-rapid-and-frequent-defrost-cycles/29447 "2025-11-25T14:50:37Z")
My Cosy 9 heatpump was installed in the summer and seems to be working well. It recently encountered temperatures around 0 degs C and has been doing some rapid defrosts (4 mins defrost, run for 30 mins, repeat). Over a c… --- ## [Using Emon Devices to Monitor Home Window Tinting Effects](https://community.openenergymonitor.org/t/using-emon-devices-to-monitor-home-window-tinting-effects/29402)
**Author:** [@Fairfax-Lawrence](https://community.openenergymonitor.org/u/Fairfax-Lawrence)\ **Replies:** 0\ **Last updated:** [15 November 2025 13:48 UTC](https://community.openenergymonitor.org/t/using-emon-devices-to-monitor-home-window-tinting-effects/29402 "2025-11-15T13:48:32Z")
Hi everyone! I’m exploring ways to monitor energy efficiency at home and thought it would be interesting to track the impact of window tinting on indoor temperatures. Has anyone tried using emonPi or emonHP sensors to mo… --- ## [\*.target.wants should contain...?](https://community.openenergymonitor.org/t/target-wants-should-contain/29393)
**Author:** [@mjr](https://community.openenergymonitor.org/u/mjr)\ **Replies:** 2\ **Last updated:** [14 November 2025 17:47 UTC](https://community.openenergymonitor.org/t/target-wants-should-contain/29393 "2025-11-14T17:47:32Z")
Hi all. I’ve not been around much because Discourse now only works in one browser and emoncms has just been humming along fine for me… until this morning! I’m trying to rescue an emonsd install after a power cut in today… --- ## [Battery Monitoring](https://community.openenergymonitor.org/t/battery-monitoring/29348)
**Author:** [@abbbbbottttt](https://community.openenergymonitor.org/u/abbbbbottttt)\ **Replies:** 3\ **Last updated:** [7 November 2025 12:26 UTC](https://community.openenergymonitor.org/t/battery-monitoring/29348 "2025-11-07T12:26:30Z")
Hi, I have a feed from my home battery that provides a kW reading every 5 minutes. How do I get this into the form of a kWh accumulator so that I can compare directly with my Octopus data? I’ve tried a number of thing… --- ## [USB-attached EmonTX5s lose connectivity with EmonCMS/EmonHP](https://community.openenergymonitor.org/t/usb-attached-emontx5s-lose-connectivity-with-emoncms-emonhp/29059)
**Author:** [@JohnM](https://community.openenergymonitor.org/u/JohnM)\ **Replies:** 10\ **Last updated:** [17 October 2025 17:51 UTC](https://community.openenergymonitor.org/t/usb-attached-emontx5s-lose-connectivity-with-emoncms-emonhp/29059 "2025-10-17T17:51:50Z")
I have an EmonPi2 (I believe technically running the EmonHP firmware, for some reason) with an attached Anker USB hub. Attached to the hub are 6 12-port EmonTX5s. Exactly two of EmonTX5s lose connectivity to the main un… --- ## [How do I install and configure EmonCMS on a Raspberry Pi?](https://community.openenergymonitor.org/t/how-do-i-install-and-configure-emoncms-on-a-raspberry-pi/29047)
**Author:** [@kamal123](https://community.openenergymonitor.org/u/kamal123)\ **Replies:** 5\ **Last updated:** [3 October 2025 07:08 UTC](https://community.openenergymonitor.org/t/how-do-i-install-and-configure-emoncms-on-a-raspberry-pi/29047 "2025-10-03T07:08:22Z")
Hi All, I’m Kamal Hinduja, based in Geneva, Switzerland(Swiss) . can anyone suggest How to install and configure Emon CMS on a Raspberry Pi? Thanks, Regards Kamal Hinduja Geneva, Switzerland --- ## [Reprocessing existing feed data to support latest emoncms features - how?](https://community.openenergymonitor.org/t/reprocessing-existing-feed-data-to-support-latest-emoncms-features-how/29135)
**Author:** [@John](https://community.openenergymonitor.org/u/John)\ **Replies:** 2\ **Last updated:** [23 September 2025 10:25 UTC](https://community.openenergymonitor.org/t/reprocessing-existing-feed-data-to-support-latest-emoncms-features-how/29135 "2025-09-23T10:25:20Z")
I’ve just updated my self-installed emoncms installation to the current version 11.9.8, which is good. Thanks a lot for the continuing efforts! I am only monitoring the overall HP+immersion (BSH) power draw, rather than… [Next page](https://community.openenergymonitor.org/tag/emoncms/3.md?match_all_tags=true&page=1&tags%5B%5D=emoncms)