An integrated steam cycle power module (100) comprising a steam turbine (102) arranged to have steam supplied thereto; a steam manifold (104) arranged to have exhaust steam from the steam turbine supplied thereto; at least one heat exchanger (108) arranged to have exhaust steam supplied thereto from the manifold via risers which connect the manifold to headers (117) associated with the heat exchangers; and having the steam turbine situated below the steam manifold and arranged, in use, to vent exhaust steam to the manifold, which exhaust steam is passed to the heat exchanger in order to have heat extracted therefrom. Substantially all of the equipment required can be integrated into a compact module reducing plot space, overall costs and assembly time on site or allowing the module to be fabricated off site. The heat exchanger may be arranged to form substantially planar, substantially vertical walls along the side regions of the module.