Abstract: Apparatus is provided having one or more SWEGS that may be configured to heat air in a draft power tower arrangement. In a closed loop, cold fluid may be pumped into the SWEGS and heated to a temperature in a range of e.g., 100° C.-300° C., and hot fluid pumped out of the SWEGS. This fluid flows through a heating element (e.g., a radiator or specially designed heat exchanger) that heats the air in the draft power tower arrangement.

Abstract: Apparatus includes a heat extraction system (SWEGS) in combination with some further apparatus for implementing some further functionality, e.g., associated with cooling/heating, remediation, mining, pasteurization and brewing applications.

Abstract: In combination, an electrical generation system has a condenser configured to receive a condenser cooling fluid for cooling the condenser and provide the condenser cooling fluid for re-cooling; a cooling reservoir receives a re-cooled condenser cooling fluid and provides the re-cooled condenser cooling fluid as the condenser cooling fluid; and a multiphase cooling nest receives in a first cooling phase the condenser cooling fluid; and either provides a first cooling phase fluid as the re-cooled condenser cooling fluid to the cooling reservoir for recirculating to the condenser, or provides the first fluid cooling fluid for further cooling by the multiphase cooling nest, based on the temperature of the first stage cooling fluid.

Abstract: Apparatus is provided having one or more SWEGS that may be configured to heat air in a draft power tower arrangement. In a closed loop, cold fluid may be pumped into the SWEGS and heated to a temperature in a range of e.g., 100° C.-300° C., and hot fluid pumped out of the SWEGS. This fluid flows through a heating element (e.g., a radiator or specially designed heat exchanger) that heats the air in the draft power tower arrangement.