Powerfox is a German energy-monitoring service built around Poweropti readers that attach to digital electricity meters, with companion devices for water, heat and gas. Data is viewed in the Powerfox app and can be reached through a customer API and a range of smart home integrations.
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Poweropti readers send data through Powerfox's cloud, and most integrations, including the Home Assistant Cloud integration, the Homey app and evcc, read from that account. Home Assistant also has a separate local integration for the power meters, which needs an active Powerfox PRO subscription.
That suits people who want one service for electricity, water, heat and gas readings with an API behind it. It is weaker for fully local setups, since the local route needs a paid plan, and we found no voice assistant or Matter support.
Source: Home Assistant Powerfox
The current app, replacing the older powerfox app. It shows live consumption and feed-in, history, comparisons, costs including dynamic and peak/off-peak tariffs, notifications and CSV download, and also activates and reconfigures devices. It supports the FLOW gas meter and lists battery storage screens for Maxxicharge systems. The listing mentions a customer API for smart home use. Published by power42 GmbH.
A branded version for customers of the utility OVAG, who can also submit meter readings through it. It needs a poweropti and is described as offered exclusively to OVAG electricity customers. Published by power42 GmbH.
Official supported by the brand Community built by someone else Not found searched, nothing found Unconfirmed sources conflict or could not be opened
| Platform | Status | What it means | Sources |
|---|---|---|---|
| Connection | |||
| Cloud | Yes | Home Assistant's Powerfox integration is classed as cloud polling and signs in with the Powerfox account. Homey's listing for Powerfox also states the technology as Cloud. | Home Assistant Powerfox Homey Powerfox app |
| Local network | Yes | Home Assistant's Powerfox Local integration reads Poweropti PA 201901, PA 201902 and PB 202001 directly every 5 seconds, found through mDNS or entered by hostname. It requires an active Powerfox PRO subscription and firmware 2.02.07 or higher. | Home Assistant Powerfox Local |
| Wi-Fi | Unconfirmed | The pages we read do not state how the Poweropti joins the network, though local access by hostname implies an IP connection. We could not confirm Wi-Fi. | Searched, no source |
| Bluetooth, Zigbee, Z-Wave, Thread | Not mentioned | None of these are mentioned on the Powerfox, Home Assistant or Homey pages we read. | Home Assistant Powerfox |
| Matter | Not found | No Matter support found in the Powerfox support page, app listings or integration pages we read. | Searched, no source |
| Voice assistants and ecosystems | |||
| Google Home | Not found | Not named on Powerfox's integrations page or app listings, and no integration found in our searches. | Powerfox smart home systems |
| Amazon Alexa | Not found | Not named on Powerfox's integrations page or app listings, and no skill found in our searches. | Powerfox smart home systems |
| Apple Home | Not found | No HomeKit or Apple Home support found. | Searched, no source |
| Samsung SmartThings | Unconfirmed | Powerfox's support page lists SmartThings among integrated systems and says most of these were built by user communities without Powerfox support. We did not find the integration itself. | Powerfox smart home systems |
| Open platforms and developer access | |||
| Home Assistant | Yes | Two built-in integrations maintained by the Home Assistant project, not Powerfox: Powerfox (cloud) covers power, water, heat and FLOW gas meters, and Powerfox Local covers power meters over the network. Powerfox's support page links both. | Home Assistant Powerfox Home Assistant Powerfox Local Powerfox smart home systems |
| Homey | Official | The Homey app is published by power fox, not Athom, and runs on Homey Cloud, Pro, Pro mini and Self-Hosted Server. It uses the cloud and gives flow triggers for power changes and feed-in or consumption thresholds. The listing also says a Homey Bridge is required for Poweropti, which we could not square with the Cloud entry. | Homey Powerfox app |
| evcc | Yes | evcc's documentation has a powerfox-poweropti meter template for grid or PV use, set up with the account user and password. It is maintained by the evcc project. The page does not say whether it is cloud or local. | evcc Powerfox Poweropti |
| Customer API | Official | Powerfox's support page says meter data can be accessed through its customer API, and the app listing describes it as a way to feed smart home systems. We could not open the API documentation, so authentication and limits are unconfirmed. | Powerfox smart home systems powerfox home listing |
| openHAB | Unconfirmed | Powerfox's support page names openHAB 2.5 and 3 among integrated systems. We did not verify a binding in openHAB's own add-on list. | Powerfox smart home systems |
| ioBroker, IP-Symcon, Mediola, Anyware | Not mentioned | Named on Powerfox's support page as integrated systems. The page says most were built by communities and are not supported by Powerfox, and does not describe how they connect. | Powerfox smart home systems |
| Node-RED | Not found | No dedicated node found in our searches. | Searched, no source |
| Hubitat | Not found | No driver found. | Searched, no source |
| Domoticz | Not found | No plugin found. | Searched, no source |
| Control4 | Not found | No integration found. | Searched, no source |
| IFTTT | Not found | No Powerfox service found in our searches. | Searched, no source |
| Philips Hue | Not found | No integration found. | Searched, no source |
Checked 11 November 2026 against the brand's own pages, app store listings and each project's own page. “Not found” means we searched and found nothing, not that it is impossible. Compatibility changes often. Spot an error? Tell us and we will fix it.
Not that we could find. No Matter support found in the Powerfox support page, app listings or integration pages we read.
Not that we could find. Not named on Powerfox's integrations page or app listings, and no skill found in our searches.
Not that we could find. Not named on Powerfox's integrations page or app listings, and no integration found in our searches.
Not that we could find. No HomeKit or Apple Home support found.
Yes. Two built-in integrations maintained by the Home Assistant project, not Powerfox: Powerfox (cloud) covers power, water, heat and FLOW gas meters, and Powerfox Local covers power meters over the network. Powerfox's support page links both.
Unconfirmed. Powerfox's support page lists SmartThings among integrated systems and says most of these were built by user communities without Powerfox support. We did not find the integration itself.
Yes, officially. The Homey app is published by power fox, not Athom, and runs on Homey Cloud, Pro, Pro mini and Self-Hosted Server. It uses the cloud and gives flow triggers for power changes and feed-in or consumption thresholds. The listing also says a Homey Bridge is required for Poweropti, which we could not square with the Cloud entry.
Not that we could find. No driver found.
Answers come from the sourced table above. See how Powerfox compares with all brands on the smart home brand statistics page.
Other brands in Energy Meters.