Key takeaways
- Metrify (Enpal subsidiary) and GridX (Eon subsidiary) are bundling an intelligent metering system (iMSys), control unit and HEMS in a joint package for the German market.
- According to the partners, the offering meets the requirements of §14a EnWG (grid-oriented control) and §9 EEG (technical specifications).
- The target audience is energy supply companies and independent installers; the pilot partner is Greenblocks.
- According to its own figures, Metrify has already installed 10,000 CLS units (Controllable Local Systems), the control unit is supplied as standard in the new package.
- The solution explicitly addresses controllable consumers such as wallboxes, heat pumps and smart home systems.
Partnership: Metrify and GridX bundle iMSys and HEMS
The competitive metering point operator Metrify Smart Metering, a subsidiary of the photovoltaic and energy systems provider Enpal, and the HEMS provider GridX, a subsidiary of the energy group Eon, have announced a bilateral partnership. As part of a long-term cooperation, both companies are now offering an integrated package consisting of an intelligent metering system (iMSys), control unit and home energy management system (HEMS), which according to pv magazine has been specifically designed for the German market.
Who does what, Division of tasks in the bundle
According to pv magazine, the division of roles is clearly defined: Metrify installs the iMSys and the control unit at the respective partner's end customers, i.e. those of an energy supplier or an installation company, and automatically reports the installation to the local distribution network operator in a technically automated manner. The installation of the HEMS is carried out by installers, as is the final reporting of the controllable consumption devices in accordance with §14a EnWG, stating the market location identification number of the household. GridX then takes care of the networking, control and optimisation of all devices.
GridX: verified end-to-end verification
"The process includes a verified end-to-end verification comprising coupling, conformity and connection proof, which goes beyond the purely physical installation, as well as a coordinated sales approach that reduces the consulting effort as well as the number of site visits and queries," pv magazine quotes a GridX spokesperson.
Regulatory framework: §14a EnWG and §9 EEG
According to both partners, the bundle is tailored to meet the legal requirements for the controllability of decentralised energy systems. The relevant provisions are §14a of the Energy Industry Act (EnWG) on grid-oriented control of controllable consumption devices and controllable grid connections, as well as §9 EEG with its technical specifications. This makes the solution particularly relevant for wallboxes, heat pumps and other controllable loads in the household that fall under the §14a regulation.
Pilot partner Greenblocks and 10,000 CLS units
Greenblocks, an installation company and platform provider for digital energy solutions, is acting as the pilot partner for the concept according to pv magazine. The underlying process has already been validated by the three partners (Metrify, GridX, Greenblocks), Greenblocks builds on existing partnerships with both Metrify and GridX.
According to the report, Metrify also illustrates the scalability of the approach with the figure of 10,000 CLS units (Controllable Local Systems) already installed. Controllable devices such as heat pumps, wallboxes or smart home systems can be integrated into a digital infrastructure via this control unit. As part of the cooperation with GridX, the control unit will in future be supplied as standard.
Context: Metrify on a partnership course
The GridX cooperation is not Metrify's first smart metering partnership this year. As early as January 2026, the company had presented a holistic smart meter solution together with Liya Energy, followed by a smart metering partnership with Viessmann at the beginning of May 2026. In its own words, the new cooperation is "another important step in the expansion of the partner programme" for Metrify.
Significance for wallbox installations
From the perspective of end customers and installation companies, the advantage of the bundle according to pv magazine lies in "having met all legal requirements for control while at the same time benefiting from their market use". For installers, it is also likely to be relevant that according to GridX, the process reduces consulting effort, site visits and queries, an aspect that carries particular weight when there are several charging points in an apartment building or underground car park.
Frequently asked questions
- Which devices can be controlled with the iMSys-HEMS package?
- According to pv magazine, heat pumps, wallboxes and smart home systems are among the controllable consumption devices that can be integrated via the CLS unit.
- Who is the offering aimed at?
- The target audience is energy supply companies and independent installers; the pilot partner is Greenblocks.
- Which legal requirements does the package fulfil?
- According to the partners, the requirements of §14a EnWG (grid-oriented control of controllable consumption devices) and §9 EEG (technical specifications) are met.
