Householders who are careful with their energy use, such as pensioners, as well as second homeowners could soon enjoy lower energy bills under Ofgem plans. Standing charges are a fixed daily charge that households must pay regardless of how much energy they use. Though Ofgem will require suppliers to offer at least one low standing charge tariff, it has not stated how these must operate. EDF gives customers £100 off what they would expect to pay for standing charges under the energy price cap. Standing charges vary dramatically from region to region due to the different costs of maintaining the infrastructure and transporting energy.