The Electrical Safety Roundtable (ESR) has published consumer guidance on plug-in solar devices, aimed at helping households assess products and installation arrangements before they buy or connect a system.
The organisation said buying 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 device is compliant, suitable for their property and installed correctly.
Product compliance and labelling
According to the ESR, a compliant plug-in solar device should meet the Plug-in Solar Device Interim Product Specification and carry clear marking plus a statement confirming compliance. Labels should identify the manufacturer, model or serial number, voltage, frequency, current, rated power, IP rating and protection class.
Consumers are advised to buy from reputable suppliers and follow the supplied instructions. The guidance also says plugs, cables, inverters, panels, connectors and other supplied components should never be modified.
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, and poorly routed or secured cabling can create trip hazards and increase the risk of damage.
Before buying a device, the ESR strongly recommends that consumers ask a qualified and competent electrician to check their electrical system. The guidance also advises consumers to contact their insurer before purchase. People in flats or apartments may need approval from the building owner, while tenants must seek permission from their landlord. Where relevant, 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 for a compliant system should explain how this notification should be carried out, according to the guidance.
Support for landlords and electricians
The ESR describes the guidance as a resource for anyone advising consumers who are considering plug-in solar. Letting agents and landlords can share it with tenants and residents to explain 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 ESR supports innovation that helps households adopt renewable energy and reduce bills, but that this must be done safely. He advised consumers to follow the guidance and use a competent, qualified person to help confirm that a plug-in solar device is suitable and correctly installed.
The ESR said that making the guidance widely available is intended to help consumers gain the benefits of plug-in solar while keeping safety as the priority.