No, Absolutely not!\r The delivery of actual energy to your premises, via the pipes and wires, is done by an energy distributer (not your energy retailer).\r That distributor will continue to supply electricity to your house\r if you change to a different energy retailer.\r It is the retailer that issues your\r electricity bills, however, they buy the energy from the distributor and resell it to you. You can't buy electricity directly from your distributor,\r you have to purchase it from an energy retailer.\r You can be confident that when you switch retailers, there won't be any interruption to your electricity supply\r because you'll continue to use the same connection to the same distributor.