An Electrical Energy Storage and Discharge system for storing electrical energy as thermal energy, comprising: a heat pump cycle, having a working fluid, a high pressure side and a low pressure side, the heat pump cycle having: a first cooler, on the high pressure side, for cooling the working fluid; and a second cooler, on the high pressure side, downstream of the first cooler, for sequential cooling of the working fluid a first thermal storage system, with a first thermal fluid, comprising a first cold storage tank a first hot storage tank fluidly connected to the first cold storage tank by means of a first fluid line passing through the first cooler so as enable the heating of the first thermal fluid by the working fluid; and a second thermal storage system, with a second thermal fluid, comprising: a second cold storage tank; a second hot storage tank fluidly connected to the second cold storage tank by a third fluid line passing through the second cooler so as enable the heating of the second thermal fluid by the working fluid, a water steam cycle having: a steam turbine for expanding steam; a first water heater downstream of the steam turbine; a boiler downstream of the first water heater for converting water of the cycle into steam; a second fluid line passing through the steam boiler and further fluidly connecting the first hot storage tank to the first cold storage tank; and a fourth fluid line passing through the first water heater and further fluidly connecting the second hot storage tank to the second cold storage tank, characterised by, a heater, on the low pressure side, wherein the third fluid line passes through the heater. a heat pump cycle, having a working fluid, a high pressure side and a low pressure side, the heat pump cycle having: a first cooler, on the high pressure side, for cooling the working fluid; and a second cooler, on the high pressure side, downstream of the first cooler, for sequential cooling of the working fluid a first cooler, on the high pressure side, for cooling the working fluid; and a second cooler, on the high pressure side, downstream of the first cooler, for sequential cooling of the working fluid a first thermal storage system, with a first thermal fluid, comprising a first cold storage tank a first hot storage tank fluidly connected to the first cold storage tank by means of a first fluid line passing through the first cooler so as enable the heating of the first thermal fluid by the working fluid; and a first cold storage tank a first hot storage tank fluidly connected to the first cold storage tank by means of a first fluid line passing through the first cooler so as enable the heating of the first thermal fluid by the working fluid; and a second thermal storage system, with a second thermal fluid, comprising: a second cold storage tank; a second hot storage tank fluidly connected to the second cold storage tank by a third fluid line passing through the second cooler so as enable the heating of the second thermal fluid by the working fluid, a second cold storage tank; a second hot storage tank fluidly connected to the second cold storage tank by a third fluid line passing through the second cooler so as enable the heating of the second thermal fluid by the working fluid, a water steam cycle having: a steam turbine for expanding steam; a first water heater downstream of the steam turbine; a boiler downstream of the first water heater for converting water of the cycle into steam; a steam turbine for expanding steam; a first water heater downstream of the steam turbine; a boiler downstream of the first water heater for converting water of the cycle into steam; a second fluid line passing through the steam boiler and further fluidly connecting the first hot storage tank to the first cold storage tank; and a fourth fluid line passing through the first water heater and further fluidly connecting the second hot storage tank to the second cold storage tank, characterised by, a heater, on the low pressure side, wherein the third fluid line passes through the heater.