IN Brief:
- Germany is examining regulatory measures for cybersecurity risks in networked energy infrastructure.
- The review includes inverter systems, critical IT components, investment screening, and possible restrictions under the BSI Act.
- The process reflects wider European concern over remotely connected power electronics in solar, storage, and grid assets.
Germany’s Federal Ministry for Economic Affairs and Energy is involved in a cross-departmental review of cybersecurity risks linked to networked energy infrastructure and connected power-electronics components.
The process also involves the Federal Ministry of the Interior, the Federal Network Agency, and the Federal Office for Information Security. The review is assessing technical and regulatory responses to risks associated with connected energy systems, including possible restrictions on the use of critical IT components in strategic infrastructure.
One option under consideration is the use of Section 41 of the BSI Act, which allows the Ministry of the Interior to prohibit or restrict operators of strategic infrastructure from using critical IT components. The wider process also covers possible EU-level measures, investment screening, and the security position of suppliers with remote access or control functions in essential energy infrastructure.
Inverter systems and other networked components used in clean energy assets are a central area of concern. Solar PV, battery storage, and hybrid sites increasingly rely on connected inverters, power conversion systems, monitoring platforms, firmware updates, remote diagnostics, and aggregated control services.
Those functions place power electronics at the operational core of grid-connected assets. Inverters now support grid-code compliance, dispatch, voltage response, fault ride-through, curtailment, telemetry, alarm handling, and operational visibility. A component that once converted DC to AC now contributes to how a site behaves during normal operation and grid disturbances.
The risk profile extends across communications networks, embedded software, cloud platforms, site controllers, supervisory control systems, remote terminal units, protection relays, metering equipment, and vendor support access. As distributed generation and storage assets grow in number, the system gains more controllable digital interfaces and more dependencies on secure update, authentication, and monitoring processes.
European funding and procurement rules are already shifting in this direction, with restrictions on high-risk inverter equipment placing supplier jurisdiction, cyber assurance, and remote access controls into clean energy decision-making. Germany’s review takes the same risk set into national infrastructure policy, where equipment selection could be shaped by security law as well as technical specification.
Project developers may face more detailed evidence requirements around software governance, data location, secure remote access, incident response, firmware integrity, supply-chain control, and support arrangements. Asset owners and grid operators may also need clearer processes for operational technology segmentation, user permissions, audit trails, and supplier intervention during faults or upgrades.
Procurement decisions are consequently becoming more complex. Efficiency, cost, lead time, warranty cover, grid-code compliance, and service capability remain essential, but they now sit alongside questions over legal jurisdiction, update control, remote connectivity, and resilience against deliberate interference.
Tighter rules could increase procurement friction, particularly where low-cost connected equipment has been specified at scale across solar and storage projects. Leaving grid-facing devices outside security scrutiny would carry a different cost, especially as distributed assets become more actively involved in system balancing and frequency management.
Energy digitalisation is making the power system more flexible and observable, while also making it more dependent on software, data links, and remotely managed equipment. Germany’s review places cybersecurity directly inside the specification, approval, financing, and operation of energy infrastructure rather than treating it as a separate IT issue after commissioning.
