Tomato Energy's collapse adds another casualty to the UK's volatile energy sector, with 400 domestic customers now facing automatic transfer to British Gas under Ofgem's Supplier of Last Resort mechanism. The small supplier's failure reflects ongoing pressures in an energy market where wholesale price volatility has claimed numerous independent providers over recent years.
Ofgem has appointed British Gas to assume responsibility for Tomato Energy's customer base, with the regulator emphasising that energy supplies will continue uninterrupted throughout the transition. Affected households should expect contact from British Gas within days, providing details of their new tariff arrangements and account information under the seamless transfer process.
Credit balances held with Tomato Energy will remain fully protected, with British Gas required to honour these funds when establishing new accounts. Conversely, any outstanding debts to the failed supplier will transfer to British Gas, maintaining customers' existing payment obligations under their new arrangements.
Ofgem's guidance urges affected customers to avoid immediate supplier switching attempts. The regulator recommends waiting for formal contact from British Gas to establish new account details before considering alternative tariff options. Once the transfer completes, customers retain full freedom to compare market rates and switch providers as desired.
The failure pattern amongst smaller energy firms has intensified during periods of wholesale market turbulence, highlighting structural challenges facing independent suppliers. Ofgem's Supplier of Last Resort framework provides essential consumer protection when providers fail, safeguarding both supply continuity and customer credit balances to minimise household disruption.
This latest market exit reinforces the energy sector's consolidation pressures and demonstrates regulatory mechanisms designed to shield consumers from supplier failures. Tomato Energy customers should await British Gas contact whilst preparing to review their new tariff arrangements once the transition completes.