The present disclosure is directed to a hydronic
system (1) for transferring
thermal energy from a
heat pump (3) to at least one
thermal energy load (5), wherein the hydronic
system (1) comprises: - a
heat pump feed circuit section (7) for transporting a
heat pump flow (qH) downstream of a heat pump circuit pump (11) for driving the heat pump flow (qH) through a heat pump (3); - a load feed circuit section (13) for transporting a load flow (qL) towards at least one
thermal energy load (5); - a storage feed circuit section (19) for transporting a storage flow (qS) that goes through a
thermal energy storage tank (23), wherein the storage flow (qS) is selectively directable in a charging direction in an
operation mode of the hydronic
system (1) in which the
thermal energy storage tank (23) is charged with thermal energy and in a discharging direction in another
operation mode of the hydronic system (1) in which thermal energy is discharged from the
thermal energy storage tank (23), wherein the heat pump feed circuit section (7), the load feed circuit section (13) and the storage feed circuit section (19) are connected at a feed connection point (27); - a load flow
feed temperature sensor (79) being arranged at the load feed circuit section (13) downstream of the feed connection point (27) for determining a load flow
feed temperature (TL) of the load flow (qL); - a
load circuit pump (17) for driving the load flow (qL); and -
control electronics (20), wherein the
control electronics (20) is configured, depending on the
operation mode of the hydronic system (1), to control directly or indirectly a speed of the
load circuit pump (17) and a speed of the heat pump circuit pump (11) so that a deviation of the load flow
feed temperature (TL) from a reference load flow feed temperature is minimised.