A thermally integrated system for producing electricity from a feedstock fuel is disclosed. The system utilizes a reformer that includes a plasma zone to receive a pre-heated mixture of reactants and ionize the reactants by applying an electrical potential thereto. A first thermally conductive surface surrounds the plasma zone and is configured to transfer heat from an external heat source into the plasma zone. The reformer further includes a reaction zone to chemically transform the ionized reactants into synthesis gas comprising hydrogen and carbon monoxide. A second thermally conductive surface surrounds the reaction zone and is configured to transfer heat from the external heat source into the reaction zone. The first thermally conductive surface and second thermally conductive surface are both directly exposed to the external heat source. A corresponding method and apparatus are also disclosed herein.
 At least part of the technology disclosed in this patent application may have been funded by the United States Government under the following contracts: Department of Energy DE-FG-02-07ER84663, Department of Defense (Army) W56-HZV-07-C-0577 and Department of Defense (Navy) N00014-07-M-0450. The United States Government may have certain rights in the invention.