# Homey Energy Dongle compatible with Kamstrup DK-8660 Omnipower P1 **URL:** \ **Category:** Questions & Help\ **Created:** [January 23, 2026, 9:09am UTC](https://community.homey.app/t/homey-energy-dongle-compatible-with-kamstrup-dk-8660-omnipower-p1/149853 "2026-01-23T09:09:12Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Peter\_Bj](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_bj/32/120823_2.png) [@Peter\_Bj](https://community.homey.app/u/Peter_Bj)\ **Post date:** [January 23, 2026, 9:09am UTC](https://community.homey.app/t/homey-energy-dongle-compatible-with-kamstrup-dk-8660-omnipower-p1/149853/1 "2026-01-23T09:09:12Z")
Hi I have a Kamstrup DK-8660 Omnipower meter, equipped with a Kamstrup HAN P1 RJ12 module (6840005). The P1 port of the Kamstrup unit is today delivering power data to a HomeWizard device so the P1 port is confirmed open and active. I want to connect a recently bought Homey Energy Dongle (P1-01) powered by an external USB-C power source to the Kamstrup Energy Meter. Unfortunately when connecting my Homey Energy Dongle to the P1 port of the Kamstrup Energy Meter I do not receive any data to my Homey device. Is the Homey device directly compatible? Any advise or suggestion to be able to connect? /Peter ---
**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\ **Post date:** [January 24, 2026, 1:59am UTC](https://community.homey.app/t/homey-energy-dongle-compatible-with-kamstrup-dk-8660-omnipower-p1/149853/2 "2026-01-24T01:59:32Z")
> [@Peter\_Bj](#): > > my Homey device Welcome, Peter. Which model are you referring to? AFAIK only the pre 2022 physical Homey models aren’t compatible with the Homey energy dongle. ---
**Author:** ![Peter\_Bj](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_bj/32/120823_2.png) [@Peter\_Bj](https://community.homey.app/u/Peter_Bj)\ **Post date:** [January 24, 2026, 3:06pm UTC](https://community.homey.app/t/homey-energy-dongle-compatible-with-kamstrup-dk-8660-omnipower-p1/149853/3 "2026-01-24T15:06:32Z")
Thank you for responding 🙂 The Energy Dongle is brand new bought 3 days ago from a regular tech shop in Sweden. Box refers to parts: HY0038, HY0039, HY0040 and HY0041, but doesn’t say manufacturing year. According to Homey support manual the dongle should be compatible with external USB power. BR /Peter ![homey](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/0/f/0ff6722a27287aba0ad773d3c7d8f0537c66fb5f.jpeg) ---
**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\ **Post date:** [January 24, 2026, 8:32pm UTC](https://community.homey.app/t/homey-energy-dongle-compatible-with-kamstrup-dk-8660-omnipower-p1/149853/4 "2026-01-24T20:32:39Z")
No problem. The older Homey models look like a white sphere. Any other model should be compatible. Sweden you say… Maybe this makes sense? ![Screenshot_20260124_213120_Firefox](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/9/6/969081b56f33053d6b301d81bbff48af2e05d81d.jpeg) Imho a Swedish tech shop should know and point you to this possible prerequisite. [https://support.homey.app/hc/en-us/articles/17233328965916-Compatibility-of-the-Homey-Energy-Dongle](https://support.homey.app/hc/en-us/articles/17233328965916-Compatibility-of-the-Homey-Energy-Dongle) ---
**Author:** ![Peter\_Bj](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_bj/32/120823_2.png) [@Peter\_Bj](https://community.homey.app/u/Peter_Bj)\ **Post date:** [January 26, 2026, 9:12am UTC](https://community.homey.app/t/homey-energy-dongle-compatible-with-kamstrup-dk-8660-omnipower-p1/149853/5 "2026-01-26T09:12:59Z")
Thank you for the answer. As mentioned initially the P1 port is already activated and delivers data to a HomeWizard energy dongle so the activation cannot be the problem. I could also read on the web that the P1 port might require to be “released” from the previous dongle protocol when switching. Hence I wait for ~30 min from disconnecting HomeWizard dongle until connecting the Homey dongle. ---
**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\ **Post date:** [January 26, 2026, 4:24pm UTC](https://community.homey.app/t/homey-energy-dongle-compatible-with-kamstrup-dk-8660-omnipower-p1/149853/6 "2026-01-26T16:24:31Z")
I was unsure which Homewizard device you referred to with > [@Peter\_Bj](#): > > a HomeWizard device which made me think of a permissions issue. May I ask why the Homewizard Energy dongle isn’t satisfactory?