Question to the Department for Energy Security & Net Zero:

To ask the Secretary of State for Energy Security and Net Zero, what data his Department holds on the frequency and duration of estimated billing for small business energy customers.

Billing issues, for both domestic and non-domestic customers, are a matter for Ofgem as the sector regulator. Ofgem’s licence conditions require suppliers to take all reasonable steps to reflect accurate meter readings in bills or statements sent to customers where these have been provided by a customer or obtained by the supplier.

We are rolling out smart meters to smaller businesses, and our latest data shows that almost two thirds of meters in non-domestic premises are smart or advanced meters. Smart meters enable accurate billing by automatically recording energy use in every half-hour period, allowing bills based on actual rather than estimated usage.

Since December 2024, Small and Medium Enterprises (SMEs) with fewer than 50 employees have been able to access free support to resolve issues with their energy supplier through the Energy Ombudsman. This means that 99% of British businesses can now access this service with outcomes ranging up to £20,000 in financial awards. We consulted in late 2025 on measures to strengthen the Ombudsman’s tools for ensuring suppliers implement decisions in a timely manner.