The Electrical Safety Roundtable (ESR) has published consumer guidance on plug-in solar devices, covering what buyers should check before purchase, how the equipment should be installed and which permissions or notifications may apply.
The organisation says choosing a device from a supermarket, DIY store or online retailer is only one part of the process. Its guidance sets out checks and precautions intended to help consumers confirm that a system is compliant, suitable for their property and installed correctly.
Compliance and labelling
According to the ESR, a compliant plug-in solar device should meet the Plug-in Solar Device Interim Product Specification. It should also be clearly marked and supplied with a statement confirming compliance.
Product labelling should identify the manufacturer, model or serial number, voltage, frequency, current, rated power, IP rating and protection class. The ESR advises consumers to buy from reputable suppliers, follow all instructions and avoid modifying the plug, cables, inverter, panels, connectors or any other supplied components.
Installation and electrical checks
The guidance says a device should ideally be connected to a nearby external socket-outlet that is suitably located and protected. Cables should not be trapped in doors or windows because this can damage them. Poorly routed or secured cabling can also create trip hazards and increase the risk of damage.
Before buying a plug-in solar device, the ESR strongly recommends that consumers ask a qualified and competent electrician to carry out the necessary checks on their electrical system. The organisation says such checks are important before installation.
Permissions and notification
Consumers are also advised to contact their insurer before purchasing a device. People living in flats or apartments may need approval from the building owner, while tenants must seek permission from their landlord. Where applicable, managing agents, planning authorities and other interested parties should be informed.
After installation, the Distribution Network Operator must be notified within 28 days. The instructions supplied with a compliant system should explain this process, according to the guidance.
Supporting consumers
The ESR describes the guidance as a resource for anyone supporting consumers who are considering plug-in solar. Letting agents and landlords can share it with tenants and residents to explain the permissions and safety checks that may be required. Organisations can use it to raise awareness and direct consumers to clear, consistent information, while electricians can share it with potential customers to explain why pre-installation checks matter.
Nick Hayler, chair of the Electrical Safety in the Home group, said the organisation supports innovation that can help households adopt renewable energy and reduce bills, but that this must be done safely. He said consumers should follow the guidance and use a competent and qualified person to help ensure their plug-in solar device is suitable and installed correctly.