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Ofgem approves G98 plug-in solar change pending linked legislation

Ofgem has approved a change to Engineering Recommendation G98 intended to facilitate compliant plug-in solar PV, but the amendment will not take effect until linked legislative changes come into force.

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UK
Plugin Solar setup

The approved Distribution Code modification is DCRP/MP/26/02, covering Engineering Recommendation G98 Issue 2 Amendment 1.

The G98 change has been approved but is not yet active

Ofgem says implementation is tied to amendments to the Plugs and Sockets etc. (Safety) Regulations 1994 and the Electricity Safety, Quality and Continuity Regulations 2002.

Until those legislative changes commence, the approved G98 amendment does not itself create the final route for plug-in solar deployment.

Ofgem limits what the approval actually covers

The decision is specifically about connection and operation of plug-in solar PV on the public low-voltage distribution network.

Ofgem states that the amendment is intended to maintain requirements for network safety, supply quality and operability.

It is also explicit that the decision does not determine wider questions of product legality, consumer protection or electrical safety inside the premises. Those matters sit under separate regulatory frameworks and the wider DESNZ plug-in solar work.

The distinction matters for installers and connected loads

A compliant network-connection route is only one part of a plug-in solar system’s legal and technical requirements.

For EV charging installations, the change is relevant because plug-in generation can alter the power seen at the grid connection and therefore affect how load-management measurements are interpreted, depending on system topology and sensor location.

The latest Ofgem decision moves the G98 side of the framework forward, but the linked statutory changes still determine when the amended approach can actually be implemented.

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