A system and a method are provided that may be used to control the temperature of steam being reheated by a moisture separator reheater (MSR). The temperature of a steam being reheated by a MSR may be sensed, and controller embodiments may use the sensed temperature to control the transfer of heat from various MSR components into the reheated steam. By using such control embodiments, the MSR may provide optimally heated steam to other power plant components, thus increasing the performance, efficiency, and safety of a power plant.