 1 Scope (1) This Act serves to increase the net electricity generation from combined heat and power plants to 110 terawatt hours by 2020 and to 120 terawatt hours by 2025 in the interests of energy saving and environmental and climate protection. 1. the purchase of CHP electricity from CHP plants, which is generated on the basis of hard coal, lignite, waste, waste heat, biomass, gaseous or liquid fuels, 2. the payment of surcharges by the network operator and the remuneration for CHP electricity from new, modernized and retrofitted CHP plants, which is obtained on the basis of waste, waste heat, biomass, gaseous or liquid fuels, 3. the payment of surcharges by the network operators for CHP electricity from existing CHP plants, which is based on gaseous fuels, 4. the payment of surcharges by the transmission system operator for the construction and expansion of 5. heat networks and for the construction of heat storage tanks into which heat from CHP systems is fed, the payment of surcharges by the transmission system operator for the New construction and expansion of cooling networks as well as for the new construction of cold storage tanks into which cold from combined heat, power and cooling systems is fed, 6. the levy of the K east.