II. - Repealed. III. - Repealed. IV. - The support fund for the development of the production and distribution of heat from renewable sources contributes to the support given to the production and distribution of heat from renewable sources, in particular from biomass, geothermal energy and solar energy, by injecting biogas into the transport and distribution networks, with specifications adapted and drawn up as of January 1, 2010, and by mobilizing lignocellulosic and agricultural resources. Substantial support will be given to heating networks supplied from renewable sources, including the use of water from deep mining reservoirs. The production of renewable energy from a heating network will be taken into account in all texts relating to construction and town planning, and in particular in the thermal regulations for buildings and energy performance labels, in the same way as the production of renewable energy in situ. A heat network substation powered by more than 50% from renewable and recuperated energies is considered as renewable energy production equipment. In situ heat recovery equipment is taken into account as renewable energy production equipment in all texts relating to construction and town planning, in particular in building thermal regulations. V. - The production of electricity from hydraulic sources while respecting the biological quality of watercourses is an integral part of the renewable energies to be supported. In particular, the development of pumped energy transfer stations is encouraged.