Electricity and gas suppliers provide energy to households, businesses, and public institutions. Unlike grid operators, where only one company is responsible for each area, consumers can choose from a variety of energy suppliers within a network region. Each household or building owner can enter into an individual contract with these suppliers. Across the country, around 1 000 companies compete in the market. Suppliers can be changed at any time, subject to notice periods. Energy suppliers, like grid operators, play a crucial role in promoting sustainable energy use and advancing the energy transition. They are responsible for operating power plants that generate electricity and gas, as well as purchasing energy from national and international markets. In addition to supplying energy, suppliers are also responsible for services such as billing, tariff management, and advisory support. They provide advisory services for the integration of renewable energy and assist in selecting suitable tariffs based on specific needs. Through close collaboration with building owners and operators, energy suppliers contribute to the efficiency and sustainability of buildings. As providers of essential services, energy suppliers must adhere to strict regulatory requirements. Relevant standards are outlined in the Energy Industry Act, the Basic Supply Ordinance for Electricity and Gas, and the Network Fee Regulations.
