You can activate your emergency credit when your balance drops below £1 – but before your credit runs out. You get £10 of emergency credit on your electricity meter, and £10 on your gas meter.
You can activate it through your in-home display or through the meter itself.
Remember, emergency credit is only there to give you a bit of time to top up. Your meter will disconnect when your £10 of emergency credit runs out. We'll automatically take a payment for any emergency credit you've used when you next top up. This keeps you covered in case of another emergency. Why your electricity won't get disconnected 'out of hours'.