Modular precast hydro dam with powerhouse

A power generation system, comprising:

• a powerhouse, comprising:
• a flow path structure defining at least a portion of a flow path, the flow path structure configured to accept fluid at an input port to enter the powerhouse and direct the fluid to exit the powerhouse at an output port;
• a power generator support structure, at least partially constructed of precast segments, configured to support weight of a power generator in an arrangement operably disposed within the flow path, at least some of the precast segments being positioned below the power generator for supporting said weight, wherein the power generation support structure includes at least one precast form having disposed therein at least one precast infill block;
• and
• an access port different from the input port, the access port aligned to enable removable coupling of the power generator to and from the power generation support structure.

A power generation system, comprising:

• a powerhouse, comprising:
• a flow path structure defining at least a portion of a flow path, the flow path structure configured to accept fluid at an input port to enter the powerhouse and direct the fluid to exit the powerhouse at an output port;
• a power generator support structure, at least partially constructed of precast segments, configured to support weight of a power generator in an arrangement operably disposed within the flow path, at least some of the precast segments being positioned below the power generator for supporting said weight, wherein the power generation support structure includes precast forms and filler that define the precast segments, wherein the precast forms include a port through a surface of the precast form that enables the filler to flow from a given layer to a lower adjacent layer in a vertical direction;
• and
• an access port different from the input port, the access port aligned to enable removable coupling of the power generator to and from the power generation support structure.