2. A permanent member of the household is disabled and unable to support themselves or has a long-term medical condition;
3. A carer, social worker, health visitor or physician has indicated that a member of the household may be vulnerable;
4. Households on a low income/state benefit with young children; or
5. A customer dependent on medical equipment that is operated by electricity e.g. a stair lift, electric wheelchair, defibrillator or dialysis machine.