# \[APP\]\[Pro\] HomeFlux EMS – Your energy, managed differently **URL:** \ **Category:** Apps\ **Created:** [August 31, 2026, 6:22pm UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982 "2026-08-31T18:22:25Z")\ **Posts on this page:** 20\ **Page:** 4
**Author:** ![Davy\_Bert](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/davy_bert/32/34928_2.png) [@Davy\_Bert](https://community.homey.app/u/Davy_Bert)\ **Post date:** [October 4, 2026, 8:14am UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982/62 "2026-10-04T08:14:24Z")
## HomeFlux EMS 1.0.6 – more flexible external price sources A new Homey app, **Energy Price Forecast** , can now provide external electricity price data to HomeFlux EMS. Besides official day-ahead prices when available, it can also provide forecast prices further into the future. This gives HomeFlux another independent price source and makes planning less dependent on Homey Energy availability. To support this properly, **HomeFlux EMS 1.0.6** includes several changes to the price-source system and will be available for testing soon. The main changes are: - Support for **two independent external price inputs** : External Price 1 and External Price 2. - Homey Energy, External Price 1 and External Price 2 can be enabled independently. - When multiple sources are enabled, the user can set their **priority order**. - HomeFlux automatically uses the highest-priority source that is ready and can fall back to another enabled source when necessary. - The price horizon for external data has been extended from **72 to 120 hours** , allowing longer forecasts to be used for planning. - The existing price normalization remains in place, so compatible price curves can still be compared and combined correctly. - The HomeFlux widget has been expanded to show the status and current price of **all three possible sources** , together with their original price curves. This makes it much easier to see which source is currently controlling the EMS and whether another source is waiting as fallback. The screenshot already shows the new setup running in development with **External Price 1, External Price 2 and Homey Energy** available at the same time. Version **1.0.6 is currently running in development**. I plan to move it to the test channel after **1.0.5 is live** , so users always have a stable HomeFlux version to fall back to while the new multi-source price system is being tested. ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/8/c/8ccff17f098d9c8090c82c319ea6f60ffc849827.jpeg) (in my test case, no formula is used, so base prices are shown) > **[Energy Price Forecast | Homey](https://homey.app/nl-be/app/eu.energypriceforecast/Energy-Price-Forecast/test/)** > > Verwarm en laad wanneer stroom het goedkoopst of het net het groenst is. ---
**Author:** ![Fred\_Krijger](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/fred_krijger/32/83505_2.png) [@Fred\_Krijger](https://community.homey.app/u/Fred_Krijger)\ **Post date:** [October 9, 2026, 10:22pm UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982/63 "2026-10-09T22:22:56Z")
Hi Davy Bert. Rel. 1.07 update seems to have made the ems instable. I’ve send you a report on the issues. 2c994ae2-fb85-4819-b133-71465d4ab3e8 ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/a/d/ad06c9898bc586cbcf4b8a499087ec15236c9390.webp) ---
**Author:** ![Davy\_Bert](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/davy_bert/32/34928_2.png) [@Davy\_Bert](https://community.homey.app/u/Davy_Bert)\ **Post date:** [October 10, 2026, 7:00am UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982/64 "2026-10-10T07:00:49Z")
Hello, Could you please confirm which charging mode your EV charger is currently using? Is it set to **Smart mode**? Could you also enable all diagnostic options in HomeFlux EMS and send me a new diagnostics report after reproducing the issue? This will help me investigate what is causing the unexpected behavior. I apologize for the inconvenience, and thank you for your patience and help in troubleshooting this issue. Regards Davy ---
**Author:** ![Davy\_Bert](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/davy_bert/32/34928_2.png) [@Davy\_Bert](https://community.homey.app/u/Davy_Bert)\ **Post date:** [October 10, 2026, 7:17am UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982/65 "2026-10-10T07:17:13Z")
Thank you for the screenshot — it helps narrow down the issue. The grid reading is close to zero, but the two widgets show different battery directions: HomeFlux EMS reports discharging, while the energy widget shows charging at 676 W. That could be a delayed battery reading, although we still need to check whether the EMS command is being applied correctly. Could you please check: - In the battery’s own app, is it actually charging or discharging at that moment, and at what power? - Does the difference between the widgets persist for several minutes, or do they eventually agree? - Is another app, Flow or the inverter’s own automatic control also controlling the battery? The EMS widget shows the command HomeFlux published; it does not confirm that the battery physically followed it. A near-zero grid reading alone cannot tell us which controller achieved that balance. Please also enable all HomeFlux diagnostics and send an export captured while the issue occurs. If possible, include your battery control Flow and a screenshot of the EV section. Sorry for the inconvenience, and thank you for helping investigate this. ---
**Author:** ![Fred\_Krijger](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/fred_krijger/32/83505_2.png) [@Fred\_Krijger](https://community.homey.app/u/Fred_Krijger)\ **Post date:** [October 10, 2026, 7:52am UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982/66 "2026-10-10T07:52:03Z")
Hi Davy Bert, The battery is charging, confirmed via it’s own app. the difference persists, the screenshot is from this morning, first remark from yesterday night. Inverter is not controlling, nor another app. I’ll send you the report. ---
**Author:** ![Fred\_Krijger](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/fred_krijger/32/83505_2.png) [@Fred\_Krijger](https://community.homey.app/u/Fred_Krijger)\ **Post date:** [October 10, 2026, 8:02am UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982/67 "2026-10-10T08:02:10Z")
Herby the token to the report. 72986270-3ea0-494e-afe6-eb1462201ff5 ---
**Author:** ![Davy\_Bert](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/davy_bert/32/34928_2.png) [@Davy\_Bert](https://community.homey.app/u/Davy_Bert)\ **Post date:** [October 10, 2026, 8:14am UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982/68 "2026-10-10T08:14:27Z")
Hello, can you send the export from homeflux ems under diagnostics in a pm? Thanks ---
**Author:** ![Davy\_Bert](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/davy_bert/32/34928_2.png) [@Davy\_Bert](https://community.homey.app/u/Davy_Bert)\ **Post date:** [October 10, 2026, 4:16pm UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982/69 "2026-10-10T16:16:55Z")
Thanks for the private update. Good to hear that everything appears to be working normally again after re-enabling the EV control. I’ve also reviewed the diagnostics again. At this point I don’t see evidence of a general stability issue in HomeFlux EMS 1.0.7. Please keep monitoring it with your current configuration. If the behaviour returns, send me a diagnostics report while the issue is actually occurring. That should make it much easier to determine exactly what triggered it. For now, I would consider the issue resolved unless it can be reproduced again. ---
**Author:** ![Fred\_Krijger](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/fred_krijger/32/83505_2.png) [@Fred\_Krijger](https://community.homey.app/u/Fred_Krijger)\ **Post date:** [October 14, 2026, 6:04pm UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982/70 "2026-10-14T18:04:43Z")
Hi Davy\_Bert, “The main thing HomeFlux still needs for this to work properly is the option to **subtract the EV’s measured charging power from the grid measurement used by the EMS** ”. How is EV power substracted from the grid measurement? I can’t get my EV to charge, without draining my home battery? Or do I need to do that upfront with a flow? ---
**Author:** ![Davy\_Bert](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/davy_bert/32/34928_2.png) [@Davy\_Bert](https://community.homey.app/u/Davy_Bert)\ **Post date:** [October 14, 2026, 6:43pm UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982/71 "2026-10-14T18:43:26Z")
Hello, You don’t need to subtract EV charging power yourself in a Flow. Keep sending the original P1 measurement to HomeFlux, because Peak Guard needs the actual total grid import. When EV grid charging is permitted and confirmed, HomeFlux applies an internal EV grid allowance to the battery controller. This prevents the battery from compensating for that permitted EV grid consumption. For example: with 4,500 W grid import and a confirmed, permitted EV allowance of 4,000 W, normal battery control responds to the remaining 500 W. The battery may still supply household consumption. Settings for grid charging without intentional home-battery support: • HomeFlux control: ON. • EV count and EV control: configure the EV and enable its control. • EV operating mode: Smart for tariff-based charging. Use the SoC-target mode if you need deadline planning. • EV charging permission for the applicable tariff or charging window: ON. • EV grid-import limit for that tariff/category: greater than 0 W, with enough room for the intended charging power. • Avoid grid import for that tariff: OFF when you want EV grid charging. • “Use home battery to provide extra EV charging power”: OFF. • “Also use home battery to provide extra EV charging power during Emergency charge”: OFF. • “Charge EV with energy above the night target SoC”: OFF. • “Do not verify whether the EV follows the setpoint”: normally OFF, so measured feedback confirms the command. • “During simultaneous planned grid charging”: choose EV first if the EV should take priority over planned battery charging. For a fixed contract, enable EV charging in the fixed charging window. For time-of-use or dynamic contracts, enable the appropriate tariffs/categories and their EV grid-import budgets. If you also want grid top-up during solar charging: Under “Grid top-up during PV charging”, select “Only up to minimum charging current” or “Up to the full requested EV setpoint”. The applicable tariff must also permit that top-up. This option is not required for ordinary permitted tariff charging. Also check the following: • The “Set EV status” Flow card receives the connected status and actual measured charging current in amperes, rather than the requested current. • The configured phase count, voltage and charging-current limits match the charger and car. • For mode-only control, the configured Smart/Standard current estimates match the actual charging behaviour. • Peak Guard leaves enough available grid capacity to reach the charger’s minimum charging current. • The EV and battery output Flows are connected, and another controller is not overriding HomeFlux’s battery commands. What happens at startup? The battery may temporarily continue supplying the load while HomeFlux waits for the charging command and actual charging response to be confirmed. Once confirmed, HomeFlux permits the corresponding grid import, but only within the options and limits you selected. This is not a fixed one-minute battery-first period. The timing depends on the control type, feedback and configured intervals. If grid charging is disabled or its limit is 0 W, waiting longer will not enable it. If the battery still drains after charging is confirmed, please send a diagnostics report while the issue is occurring. Allso confirm if your charger is realy 3 phase 230v. Set ems to 400v to test.(This is only for calculations and will not change hardeware voltzges) It could cause the calculated wattzge way to low causing your battery to drain. Regards, Davy ---
**Author:** ![Davy\_Bert](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/davy_bert/32/34928_2.png) [@Davy\_Bert](https://community.homey.app/u/Davy_Bert)\ **Post date:** [October 14, 2026, 9:45pm UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982/73 "2026-10-14T21:45:26Z")
Released test version 1.0.11 This version improves the flexibility of EV charging control in **Amps/Hybrid mode** , allowing HomeFlux to better adapt to the actual charging current reported by the charger. I’ve also added important notes and warnings to help prevent unwanted home battery drain when using this mode. > **[HomeFlux EMS | Homey](https://homey.app/en-nl/app/com.homeflux.ems/HomeFlux-EMS/test/)** > > Your energy, managed differently ---
**Author:** ![Gerrit\_Ekelmans](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gerrit_ekelmans/32/8452_2.png) [@Gerrit\_Ekelmans](https://community.homey.app/u/Gerrit_Ekelmans)\ **Post date:** [October 17, 2026, 1:52pm UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982/74 "2026-10-17T13:52:46Z")
Hello @Davy_Bert Thank you for the amazing app. I think this is much better then the others because of the possibilities within the settings. I am trying to setup my battery, ev charger and heatpomp, but i am having difficulties with the car charger. After starting the charger, it stops after a couple of seconds. For sure, i am doing something wrong, but i cant find it. I have the needed flows, but maybe some help will fix my problem. Could you or somebody else share the needed flows for the ev charger to work Thank you in advance ![1000041801](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/4/d/4d33a2cd8ea560bbf94ce6a719c0842b122316ff.jpeg) ![1000041803](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/c/f/cf63044640aaf38529b99acf6ed5d6a793dcb135.jpeg) ---
**Author:** ![Davy\_Bert](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/davy_bert/32/34928_2.png) [@Davy\_Bert](https://community.homey.app/u/Davy_Bert)\ **Post date:** [October 18, 2026, 1:02pm UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982/75 "2026-10-18T13:02:12Z")
This problem has been solved from v1.1.5 and up. No configured battery or disabled ems seemed to stop charging. Thanks for reporting the issue. ---
**Author:** ![Gerrit\_Ekelmans](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gerrit_ekelmans/32/8452_2.png) [@Gerrit\_Ekelmans](https://community.homey.app/u/Gerrit_Ekelmans)\ **Post date:** [October 18, 2026, 1:42pm UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982/76 "2026-10-18T13:42:59Z")
Thank you again Davy for your amazing support. It is working super now. ---
**Author:** ![Davy\_Bert](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/davy_bert/32/34928_2.png) [@Davy\_Bert](https://community.homey.app/u/Davy_Bert)\ **Post date:** [October 23, 2026, 11:27pm UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982/77 "2026-10-23T23:27:48Z")
### Small update – Important CPU optimization in HomeFlux EMS 1.1.16 We’ve identified and addressed a significant CPU performance issue affecting **HomeFlux EMS 1.1.15 and earlier** , particularly when using the Flow card **“Set EV minimum SoC by time”** to schedule EV charging based on a target SoC and deadline. After extensive investigation using the new Process Monitor, we discovered that the issue wasn’t primarily caused by the charging decisions themselves, but by unnecessary calculations and repeated EV settings processing. In certain situations, these calculations were being performed multiple times per second, even when nothing relevant had changed. **What’s improved in 1.1.16?** - Significantly reduced unnecessary EV settings calculations. - Improved reuse of unchanged EV configuration and planning data. - Reduced redundant processing during frequent P1 updates. - Preserved existing charging logic, safety checks and responsiveness. On my own Homey, CPU usage dropped from approximately **21% to 2.5%** during our investigation and optimization process. **If you’re using the EV SoC planning Flow card, I strongly recommend installing the latest test version 1.1.16:** > **[HomeFlux EMS | Homey](https://homey.app/en-nl/app/com.homeflux.ems/HomeFlux-EMS/test/)** > > Your energy, managed differently Regards, Davy ---
**Author:** ![Jurgen\_Schoorlemmer](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jurgen_schoorlemmer/32/121174_2.png) [@Jurgen\_Schoorlemmer](https://community.homey.app/u/Jurgen_Schoorlemmer)\ **Post date:** [October 24, 2026, 4:40pm UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982/78 "2026-10-24T16:40:50Z")
First of all, thanks for 1.1.16. The CPU work really shows on my Homey Pro. During tonight’s test the Input Monitor measured an average of **1.26 % of one core** for the whole HomeFlux process over 11.5 minutes. That was during an active EV charging session with grid updates every second, repeated EV decisions and Peak Guard checks. Before 1.1.16, HomeFlux was regularly one of the busier apps in Homey’s CPU overview; now it barely registers. The new planning diagnostics are also very helpful. Seeing calculations per route, how often they run and their CPU time made it easy to rule out flow loops on my side. In this test I had 0 possible loops and 0 calculation repeats, and the reuse counters were doing their job (188× `physical_config_reused`, 10× `soc_deadline_reused`). Issue: Tonight I ran a controlled test of “charge ASAP” (emergency charge) and found a reproducible Peak Guard stop. It probably also happened in earlier versions. It’s not new in 1.1.16. **Setup** - HomeFlux EMS 1.1.16 (test channel), Hybrid EMS mode with an SMA battery inverter. HomeFlux reports and the SMA handles self-consumption. - Grid power comes from the SMA Energy Meter via `set_grid_power` (±1 update/s). - Peak Guard limit is 15,000 W. Grid import limit is 14,900 W. Stop hold is 300 s. - EV charger: **Peblar Business** (I recently switched from a Zappi), 16 A, 3-phase, so ±11 kW. EV status and SoC are fed to HomeFlux with `set_ev_status_for_configured` / `set_ev_soc_for_configured`. - House load during the test was ±0.7 kW. No other large loads; the heat pump compressor was off. **Timeline (CEST, from the HomeFlux Flow events logged in my journal)** | Time | Event | | --- | --- | | 18:20:01 | `auto_target_unreachable`: 18.6 kWh, deadline 25/10 07:00:01 | | 18:20:03 | charge mode `standard`: “Emergency charge · maximaal vermogen”. The Peblar starts at ±11 kW | | 18:21:04.7 | charging allowed: **Yes** | | 18:21:05.1 | charge mode `stop`: **“Peak Guard laat geen gezamenlijk EV-laadvermogen toe”** | | 18:21:15 | charging allowed: No (same reason) | | 18:26:25 | after the 300 s hold: charge mode `standard` again | | ±18:27 | Measured: Peblar 10.95 kW (15.7/15.7/16.0 A); grid +11.0 kW (17.5/15.1/15.8 A); home battery roughly idle | | 18:27:26.6 | charging allowed: **Yes** | | 18:27:26.9 | charge mode `stop`: **same Peak Guard reason** | | 18:29 | Test stopped (back to Smart mode) | So the pattern is: allowed → stop within 0.4 s → wait 300 s → start again → stop again. This repeated each time. With the grid at 11.0 kW and a 15 kW limit there was ±4 kW headroom, so the stop doesn’t look justified. **My hypothesis (not proven):** the EV’s actual charging power is already included in the measured grid power, and Peak Guard adds the EV’s requested power on top of it (11 + 11 ≈ 22 kW \> 15 kW). In other words, the EV’s own load might not be subtracted from the grid measurement before the “combined EV power” check. **Diagnostics report** Input Monitor & Loop Detection export, 18:20–18:31: - 349 inputs, 0 possible loops, 0 calculation repeats, so no flow loop on my side; - unfortunately the export doesn’t contain Peak Guard’s intermediate values, so it can’t confirm or rule out the hypothesis. **Questions** 1. Does Peak Guard subtract the current EV charging power from the measured grid power before deciding on the combined EV power? Does it use the charge current from `set_ev_status_for_configured`, or does it estimate EV power some other way? 2. Is there a debug log or setting that shows the values Peak Guard used for this decision? 3. Minor point: I didn’t have an active 07:00 deadline (my SoC deadline is 06:30), yet `auto_target_unreachable` reported 07:00:01. Could that be a fallback deadline? Happy to run another test with extra logging if that helps or post it as an issue in github. ---
**Author:** ![Davy\_Bert](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/davy_bert/32/34928_2.png) [@Davy\_Bert](https://community.homey.app/u/Davy_Bert)\ **Post date:** [October 24, 2026, 5:09pm UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982/79 "2026-10-24T17:09:55Z")
Hello Jurgen, Are you using Amps steering or hybrid? Regards Davy ---
**Author:** ![Jurgen\_Schoorlemmer](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jurgen_schoorlemmer/32/121174_2.png) [@Jurgen\_Schoorlemmer](https://community.homey.app/u/Jurgen_Schoorlemmer)\ **Post date:** [October 24, 2026, 5:20pm UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982/80 "2026-10-24T17:20:04Z")
Hi Davy, I’m using **mode control** (Charge control type = _mode_: Stop / Smart / Standard, estimated currents 6 / 16 A, 3 phases). A flow follows HomeFlux’s charge mode and switches the Peblar Business: Stop → Pure Solar (pause), Standard → Standard + start. I also feed the **actual** charging current with set\_ev\_status\_for\_configured, and HomeFlux shows it in Live status. Your question makes me think **Hybrid (mode + current)** would be the better setup for me. The Peblar can take a charge current limit (6–16 A) from a flow, ( this I did not use with my previous charger from Zappi), so I could build that. Before I do, a few questions: 1. **With Hybrid, does Peak Guard reduce the charging current instead of stopping the session** when headroom is limited? That would remove the start/stop cycle I’m seeing. 2. **In mode control, does Peak Guard add the estimated Standard power (16 A × 3 ≈ 11 kW) on top of the measured grid power?** The grid power already includes the car. That would explain the stop 0.4 s after “charging allowed” at only 11.0 kW grid. 3. **How often does HomeFlux send a new current in Hybrid?** I believe it’s about every 50 s. Should my flow only write to the charger when the value changes? 4. **Is Hybrid the recommended setup for a charger that supports both mode and current?** If Hybrid is the way to go, I’ll switch over and repeat tonight’s test with the Input Monitor running. Thanks, Jurgen ---
**Author:** ![Davy\_Bert](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/davy_bert/32/34928_2.png) [@Davy\_Bert](https://community.homey.app/u/Davy_Bert)\ **Post date:** [October 24, 2026, 5:31pm UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982/81 "2026-10-24T17:31:09Z")
The log with planning checked should give more information. But i have found an issue, peak guard was counting the ev load, but that is not needed. As peak guard only need to act when your p1 hits your peak guard value. I will address this asap ---
**Author:** ![Davy\_Bert](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/davy_bert/32/34928_2.png) [@Davy\_Bert](https://community.homey.app/u/Davy_Bert)\ **Post date:** [October 24, 2026, 5:32pm UTC](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982/82 "2026-10-24T17:32:56Z")
No need to switch 😃 All modes need to work 👌 [Previous page](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982.md?page=3) [Next page](https://community.homey.app/t/app-pro-homeflux-ems-your-energy-managed-differently/158982.md?page=5)