# \[APP\]\[Pro\] Power by the Hour - your own Energy Management System on Homey: it measures, predicts, plans and controls **URL:** \ **Category:** Apps\ **Tags:** app, tools\ **Created:** [November 10, 2019, 10:06pm UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535 "2019-11-10T22:06:03Z")\ **Posts on this page:** 20\ **Page:** 155
**Author:** ![Gruijter](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gruijter/32/1973_2.png) [@Gruijter](https://community.homey.app/u/Gruijter)\ **Post date:** [July 7, 2025, 10:00am UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535/3145 "2025-07-07T10:00:20Z")
Official ECB rates are used. Euro foreign exchange reference rates [https://share.google/wVBr4lBqw868QYJS7](https://share.google/wVBr4lBqw868QYJS7) ---
**Author:** ![Endre\_Homey](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/endre_homey/32/121104_2.png) [@Endre\_Homey](https://community.homey.app/u/Endre_Homey)\ **Post date:** [July 7, 2025, 1:22pm UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535/3146 "2025-07-07T13:22:24Z")
Why not use the Nordpool exchange rate? It also seems like the Official ECB rates are frozen throughout the weekend. So the NOK values in PBTH ends up being incorrect compared to the Nordpool website. ---
**Author:** ![Gruijter](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gruijter/32/1973_2.png) [@Gruijter](https://community.homey.app/u/Gruijter)\ **Post date:** [July 7, 2025, 1:42pm UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535/3147 "2025-07-07T13:42:19Z")
You are most welcome to implement Nordpool exchange rates as an addional source. Help in maintaing apps is very welcome in generalšŸ˜˜. In fact Iā€™m considering dropping Nordpool completely since all prices are already made available through entso. ---
**Author:** ![Bernd\_Gaykema](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/bernd_gaykema/32/112153_2.png) [@Bernd\_Gaykema](https://community.homey.app/u/Bernd_Gaykema)\ **Post date:** [July 8, 2025, 7:40am UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535/3148 "2025-07-08T07:40:07Z")
Issue: In my Homey Dasboard I use the camera widget for showing the day ahead prices, available in PbtH. Nearly every day this widget turns black (showing the camera symbol in grey). Refreshing by clicking on the circle symbol does not help. I have to close the entire Homey app and restart it to let the camera widget showing the graph. It looks like that this widget crashes, while all other entries in my dashboard works 24/7. I use an ā€œoldā€ Samsung Tablet SM-T510, Android 11. Is this a PbtH issue or a Homey Dashboard issue or a tablet issue or? ---
**Author:** ![Gruijter](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gruijter/32/1973_2.png) [@Gruijter](https://community.homey.app/u/Gruijter)\ **Post date:** [July 8, 2025, 8:35am UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535/3149 "2025-07-08T08:35:21Z")
> [@Bernd\_Gaykema](#): > > Is this a PbtH issue or a Homey Dashboard issue or a tablet issue or? PBTH simply creates a ā€˜cameraā€™. The rest is done by Homey dashboard and the mobile app. ---
**Author:** ![Eternity](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/eternity/32/102113_2.png) [@Eternity](https://community.homey.app/u/Eternity)\ **Post date:** [July 17, 2025, 10:54am UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535/3150 "2025-07-17T10:54:26Z")
My Smart meters are going to be replaced (Gas and Electricity). What need I do to keep my data of the current PBTH devices? How do I migrate or update? ---
**Author:** ![Gruijter](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gruijter/32/1973_2.png) [@Gruijter](https://community.homey.app/u/Gruijter)\ **Post date:** [July 17, 2025, 12:05pm UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535/3151 "2025-07-17T12:05:45Z")
You need to fiddle with the this day/month/year start to continue with the same homey device. ---
**Author:** ![Eternity](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/eternity/32/102113_2.png) [@Eternity](https://community.homey.app/u/Eternity)\ **Post date:** [July 17, 2025, 12:36pm UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535/3152 "2025-07-17T12:36:19Z")
@Gruijter Thanks for the Swift reply. Will do! ---
**Author:** ![Walter\_vande\_kerkhof](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/walter_vande_kerkhof/32/28963_2.png) [@Walter\_vande\_kerkhof](https://community.homey.app/u/Walter_vande_kerkhof)\ **Post date:** [July 18, 2025, 8:06am UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535/3153 "2025-07-18T08:06:56Z")
@Gruijter In October Tibber starts with energy prices per quarter. How will this affect the PBTH app and the calculation of the average price - card of the App? Do you expect that we need to change our flows? ---
**Author:** ![Gruijter](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gruijter/32/1973_2.png) [@Gruijter](https://community.homey.app/u/Gruijter)\ **Post date:** [July 18, 2025, 8:56am UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535/3154 "2025-07-18T08:56:20Z")
> [@Walter\_vande\_kerkhof](#): > > Do you expect that we need to change our flows? Yes probably. The average price cards will work the same, but there will be 4x more time periods ---
**Author:** ![Bernd\_Gaykema](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/bernd_gaykema/32/112153_2.png) [@Bernd\_Gaykema](https://community.homey.app/u/Bernd_Gaykema)\ **Post date:** [July 25, 2025, 5:37pm UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535/3155 "2025-07-25T17:37:32Z")
@Gruijter , See [here](https://community.homey.app/t/error-camera-widget-in-homey-dashboard-turns-black-every-day/139594/6). It turns out that only the PbtH-camera widget is crashing, a 2nd camera widget with KNMI-info stays alive. Am I the only one seeing this crashing of the day ahead prices graph in dashboards? ---
**Author:** ![Ria\_Banis](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/ria_banis/32/7966_2.png) [@Ria\_Banis](https://community.homey.app/u/Ria_Banis)\ **Post date:** [July 26, 2025, 9:41am UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535/3156 "2025-07-26T09:41:43Z")
Works fine for me, both in Homey dashboard as in HDashboards ---
**Author:** ![Bernd\_Gaykema](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/bernd_gaykema/32/112153_2.png) [@Bernd\_Gaykema](https://community.homey.app/u/Bernd_Gaykema)\ **Post date:** [July 26, 2025, 9:46am UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535/3157 "2025-07-26T09:46:11Z")
What display do you use? ---
**Author:** ![Ria\_Banis](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/ria_banis/32/7966_2.png) [@Ria\_Banis](https://community.homey.app/u/Ria_Banis)\ **Post date:** [July 26, 2025, 10:02am UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535/3158 "2025-07-26T10:02:49Z")
Lenovo M11, IPad and IPhone and google Nest 1 ---
**Author:** ![Bernd\_Gaykema](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/bernd_gaykema/32/112153_2.png) [@Bernd\_Gaykema](https://community.homey.app/u/Bernd_Gaykema)\ **Post date:** [July 26, 2025, 10:16am UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535/3159 "2025-07-26T10:16:22Z")
I just tried to install a new camera widget with PbtH graph in a Homey Dasboard which is running for many days. No luck, I just see the black screen with camera symbol. Clicking the refresh button gives no reaction, other than that it is circling for hoursā€¦ Restarting the Homey app and then the dashboard and there it is ā€¦ My Samsung Galaxy Tab A (SM-T510) on Android 11 seems not good enough. Too bad as I had some collecting dust and this is a nice way to use them šŸ˜„ ---
**Author:** ![Ria\_Banis](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/ria_banis/32/7966_2.png) [@Ria\_Banis](https://community.homey.app/u/Ria_Banis)\ **Post date:** [July 26, 2025, 10:38am UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535/3160 "2025-07-26T10:38:18Z")
I have it on a Google Nest 1. No problem ---
**Author:** ![Bernd\_Gaykema](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/bernd_gaykema/32/112153_2.png) [@Bernd\_Gaykema](https://community.homey.app/u/Bernd_Gaykema)\ **Post date:** [July 26, 2025, 1:51pm UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535/3161 "2025-07-26T13:51:05Z")
I have ordered a Lenovo M11 myself. Arrives on Monday. If the dashboard with camera widget ā€œday ahead pricingā€ is working stable I have to move over. To be continuedā€¦ ---
**Author:** ![Bernd\_Gaykema](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/bernd_gaykema/32/112153_2.png) [@Bernd\_Gaykema](https://community.homey.app/u/Bernd_Gaykema)\ **Post date:** [July 28, 2025, 7:05pm UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535/3162 "2025-07-28T19:05:59Z")
@Ria_Banis and @Gruijter, I installed the Homey app on my new Lenovo M11. Within 5 hours the camera widget with PbtH-graph ā€œday ahead pricesā€ crashed. The widget with a KNMI picture stayed aliveā€¦ Can I conclude that it is not the tablet hardware or Android software (Lenove has version 14, the Samsung version 11)? What else can I do to come closer to the root cause? Please help me to solve this annoying issue šŸ˜­ EDIT on August 1st: Once a day the camera widget with Day Ahead prices is crashing on both tablets (Lenovo and Samsung). The KNMI-camera widget stays alive. One solution might be to skip PbtH for this and find a graphical image somewhere on the internet which fits in the widget. Is there anybody around who found an URL with this graph? ---
**Author:** ![FKey](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/fkey/32/14793_2.png) [@FKey](https://community.homey.app/u/FKey)\ **Post date:** [August 2, 2025, 2:00pm UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535/3163 "2025-08-02T14:00:51Z")
I already created some summarisers. But now I am stuck with my latest wish. I would like to have a sumariser the _only_ shows return energy. I have a summariser for my smart meter, but that summarises all (positive and negative) energy. I want to separate my return energy. Any suggestion on how to start that? ---
**Author:** ![Gruijter](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gruijter/32/1973_2.png) [@Gruijter](https://community.homey.app/u/Gruijter)\ **Post date:** [August 2, 2025, 4:15pm UTC](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535/3164 "2025-08-02T16:15:59Z")
Create a virtual power device (e.g . via GROUPS app), and have PBTH connect to that virtual device. Or create a PBTH virtual device and feed that with the desired kWh meter value every x seconds using a flow. [Previous page](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535.md?page=154) [Next page](https://community.homey.app/t/app-pro-power-by-the-hour-your-own-energy-management-system-on-homey-it-measures-predicts-plans-and-controls/20535.md?page=156)