Variables	Description
E_Xh	Heating energy provided by the system [kWh] $X \in [W T, P V, S H P, C H P, F P C, B, N e t]$

E_Xe	Electrical energy provided by the system [kWh] $X \in [W T, P V, S H P, C H P, N e t]$

E_Xp	Pumping energy from the system [kWh] $X \in [W T, P V, S H P, C H P, N e t]$

E_Xb	Energy produced and sent to the battery [kWh] $X \in [W T, P V, S H P, C H P]$

CH_e	Energy provided from the battery for electricity [kWh]
CH_h	Energy provided from the battery for heating [kWh]
CH_p	Energy provided from the battery for pumping [kWh]
SoC(t)	the level of battery charge [kWh] at time instant t
HS(t)	the level of heat storage [kWh] at time instant t