If you are a Carer it is quite likely that your household will meet the criteria to register with your energy company as a ‘priority customer’. This means that they offer you extra support which you may find helpful. If you do not live with the person you care for, and you’re are not eligible, they or someone in their household may be eligible and benefit from registering.
Ofgem has some useful information on who qualifies for additional support and what this support may offer. In particular, you should register if you rely on electricity to run medical equipment or you need to keep your home warm due to the medial condition or vulnerability of yourself or someone who lives within the household.