A pumped heat energy storage system, comprising: a charging circuit comprising: a first rotary component configured to compress a first working fluid and generate thermal energy; a plurality of thermal storage vessels (102, 104) fluidly coupled with the first rotary component and configured to store the thermal energy generated from the first rotary component; and a first heat rejection system fluidly coupled with the plurality of thermal storage vessels (102, 104) and configured to remove thermal energy from the charging circuit; and a discharging circuit comprising: a first expansion element fluidly coupled with the plurality of thermal storage vessels (102, 104) and configured to extract the thermal energy stored in the plurality of thermal storage vessels and convert the thermal energy to mechanical energy via an expansion of a second working fluid; a generator operatively coupled to the first expansion element and configured to convert the mechanical energy to electrical energy; and a second heat rejection system fluidly coupled with the plurality of thermal storage vessels (102, 104) and the first expansion element and configured to remove thermal energy from the discharging circuit, characterized in that the first heat rejection system and the second heat rejection system are configured to balance a total heat rejection of the pumped heat energy storage system between the charging circuit and the discharging circuit, wherein the charging circuit operates at a first pressure ratio, and the discharging circuit operates at a second pressure ratio, the first pressure ratio and the second pressure ratio being substantially similar. a charging circuit comprising: a first rotary component configured to compress a first working fluid and generate thermal energy; a plurality of thermal storage vessels (102, 104) fluidly coupled with the first rotary component and configured to store the thermal energy generated from the first rotary component; and a first heat rejection system fluidly coupled with the plurality of thermal storage vessels (102, 104) and configured to remove thermal energy from the charging circuit; and a first rotary component configured to compress a first working fluid and generate thermal energy; a plurality of thermal storage vessels (102, 104) fluidly coupled with the first rotary component and configured to store the thermal energy generated from the first rotary component; and a first heat rejection system fluidly coupled with the plurality of thermal storage vessels (102, 104) and configured to remove thermal energy from the charging circuit; and a discharging circuit comprising: a first expansion element fluidly coupled with the plurality of thermal storage vessels (102, 104) and configured to extract the thermal energy stored in the plurality of thermal storage vessels and convert the thermal energy to mechanical energy via an expansion of a second working fluid; a generator operatively coupled to the first expansion element and configured to convert the mechanical energy to electrical energy; and a second heat rejection system fluidly coupled with the plurality of thermal storage vessels (102, 104) and the first expansion element and configured to remove thermal energy from the discharging circuit, a first expansion element fluidly coupled with the plurality of thermal storage vessels (102, 104) and configured to extract the thermal energy stored in the plurality of thermal storage vessels and convert the thermal energy to mechanical energy via an expansion of a second working fluid; a generator operatively coupled to the first expansion element and configured to convert the mechanical energy to electrical energy; and a second heat rejection system fluidly coupled with the plurality of thermal storage vessels (102, 104) and the first expansion element and configured to remove thermal energy from the discharging circuit, characterized in that the first heat rejection system and the second heat rejection system are configured to balance a total heat rejection of the pumped heat energy storage system between the charging circuit and the discharging circuit, wherein the charging circuit operates at a first pressure ratio, and the discharging circuit operates at a second pressure ratio, the first pressure ratio and the second pressure ratio being substantially similar.