The Welsh Government has published a technical note providing guidance to owners of premises with on-site renewable electricity generation and battery storage on connecting installations to the electricity distribution network and exporting surplus electricity to the grid. It explains that all generation and storage systems must be authorised by the relevant Distribution Network Operator (DNO), regardless of whether electricity will be exported, and that premises owners are responsible for ensuring compliance with DNO Engineering Recommendations. The guidance advises early engagement with DNOs due to potential connection costs, delays and design changes, and outlines the process for obtaining network connections, including compliance with the relevant G98, G99 and, where applicable, G100 requirements. It also explains that exporting electricity requires an export Meter Point Administration Number (MPAN), a compliant export meter and evidence of regulatory compliance, and notes that Smart Export Guarantee licensees must offer an export tariff to eligible generators. For owners without an export MPAN or export meter, the note describes routes through electricity suppliers or directly through the DNO and a meter operator, while highlighting the need to assess the costs and benefits of export arrangements, including future opportunities for local use or sale of surplus generation under proposed Complex Site arrangements.