Offshore and marine vessel-based nuclear reactor configuration, deployment and operation

A marine nuclear power installation, comprising:

• a first plurality of pilings securable to a bed under a surface of a body of water;
• a buoyant, first base structure, wherein the first base structure is adapted to be floated across the surface of the body of water into position and deballasted atop the first plurality of pilings, wherein the first base structure comprises:
• at least three walls;
• a first cantilevered ledge disposed along a first wall of the at least three walls;
• and
• a second cantilevered ledge disposed along a second wall of the at least three walls,
• wherein the first plurality of pilings support the first base structure at the first cantilevered ledge and the second cantilevered ledge;
• a buoyant nuclear reactor module, wherein the nuclear reactor module is adapted to be floated across the surface of the body of water into position and deballasted onto the first base structure and wherein the nuclear reactor module is adapted to contain a nuclear reactor therein;
• a plurality of seismic isolators disposed atop the first base structure, wherein the seismic isolators are disposed between the first base structure and the nuclear reactor module to dampen the transmission of vibrations from the first base structure to the nuclear reactor module;
• and
• a lacuna disposed beneath the first base structure and between the first plurality of pilings, wherein the lacuna is surrounded at least in part by the first plurality of pilings, and wherein the nuclear reactor is configured to be lowered from the first base structure into the lacuna through an opening defined within the first base structure,
• wherein the at least three walls form an artificial harbor to receive the nuclear reactor module therein.