a steam cycle arrangement comprising a heat recovery steam generator (HRSG) and a steam turbine;

said HRSG comprising an HRSG inlet oriented to receive exhaust gases from a gas turbine, and a first HRSG outlet oriented to discharge a first steam flow; and

a dual reboiler arrangement comprising a first reboiler and a second reboiler,

said first reboiler coupled in flow communication with said first HRSG outlet, said first reboiler configured to receive a circulation flow discharged from the steam turbine and use heat extracted from the circulation flow to heat a solvent circulated by a carbon capture arrangement,

said second reboiler oriented to receive a first portion of a discharge liquid flow from the carbon capture arrangement, said second reboiler configured to preheat the first portion using heat extracted from an external flow received from a first external source, and channel the preheated first portion into said first reboiler for use in heating.