A method of controlling an energy supply system, said energy supply system comprising: at least two energy generators (E1-E5, B1-B2, G1-G2, H1-H2) each being configured to provide at least one energy form of heat and/or cold and/or electrical energy, wherein said energy supply system is a multivalent energy supply system the energy generators (E1-E5, B1-B2, G1-G2, H1-H2) of which use a total of at least two different energy carriers; for each energy generator, one closed-loop controller (R1-R5) for controlling said energy generator (E1-E5, B1-B2, G1-G2, H1-H2); and a control device for controlling the closed-loop controllers (R1-R5) in a coordinated manner, said control device performing the following method steps periodically at predetermined discrete times (k): detecting an energy supply request to provide energy in the form of heat and/or cold and/or electrical energy; for each energy form (F1-F3), determining which energy generators (E1-E5, B1-B2, G1-G2, H1-H2) are required to meet said energy supply request; for each energy form (F1-F3), generating switch-on requests for the energy generators (E1-E5, B1-B2, G1-G2, H1-H2) required to meet said energy supply request and generating switch-off requests for the energy generators (E1-E5, B1-B2, G1-G2, H1-H2) not required to meet said energy supply request; determining a first energy generator configured to simultaneously provide a first energy form (F1-F3) and a second energy form (F1-F3) for which a switch-on request for the first energy form (F1-F3) and a switch-off request for the second energy form (F1-F3) were present at a previous time (k-1) and for which there is a switch-off request for the first energy form (F1-F3) present at the current time (k); when there is present an energy supply request for providing the second energy form (F1-F3), generating a switch-on request of the second energy form (F1-F3) for said first energy generator. at least two energy generators (E1-E5, B1-B2, G1-G2, H1-H2) each being configured to provide at least one energy form of heat and/or cold and/or electrical energy, wherein said energy supply system is a multivalent energy supply system the energy generators (E1-E5, B1-B2, G1-G2, H1-H2) of which use a total of at least two different energy carriers; for each energy generator, one closed-loop controller (R1-R5) for controlling said energy generator (E1-E5, B1-B2, G1-G2, H1-H2); and a control device for controlling the closed-loop controllers (R1-R5) in a coordinated manner, said control device performing the following method steps periodically at predetermined discrete times (k): detecting an energy supply request to provide energy in the form of heat and/or cold and/or electrical energy; for each energy form (F1-F3), determining which energy generators (E1-E5, B1-B2, G1-G2, H1-H2) are required to meet said energy supply request; for each energy form (F1-F3), generating switch-on requests for the energy generators (E1-E5, B1-B2, G1-G2, H1-H2) required to meet said energy supply request and generating switch-off requests for the energy generators (E1-E5, B1-B2, G1-G2, H1-H2) not required to meet said energy supply request; determining a first energy generator configured to simultaneously provide a first energy form (F1-F3) and a second energy form (F1-F3) for which a switch-on request for the first energy form (F1-F3) and a switch-off request for the second energy form (F1-F3) were present at a previous time (k-1) and for which there is a switch-off request for the first energy form (F1-F3) present at the current time (k); when there is present an energy supply request for providing the second energy form (F1-F3), generating a switch-on request of the second energy form (F1-F3) for said first energy generator. detecting an energy supply request to provide energy in the form of heat and/or cold and/or electrical energy; for each energy form (F1-F3), determining which energy generators (E1-E5, B1-B2, G1-G2, H1-H2) are required to meet said energy supply request; for each energy form (F1-F3), generating switch-on requests for the energy generators (E1-E5, B1-B2, G1-G2, H1-H2) required to meet said energy supply request and generating switch-off requests for the energy generators (E1-E5, B1-B2, G1-G2, H1-H2) not required to meet said energy supply request; determining a first energy generator configured to simultaneously provide a first energy form (F1-F3) and a second energy form (F1-F3) for which a switch-on request for the first energy form (F1-F3) and a switch-off request for the second energy form (F1-F3) were present at a previous time (k-1) and for which there is a switch-off request for the first energy form (F1-F3) present at the current time (k); when there is present an energy supply request for providing the second energy form (F1-F3), generating a switch-on request of the second energy form (F1-F3) for said first energy generator.