US 12,742,435 B2 · Modular underwater pumped-storage power plant reservoir

Abstract

An underwater pumped storage power plant reservoir in a dry but floodable ground depression, comprises a modular arrangement of several individual pressure vessel modules for the intermediate storage of electrical energy from other power plants, wherein the pressure vessel modules each have an outer wall with at least one flow-through opening for letting in and/or letting out water and can each be filled with water and/or pumped empty independently of one another when the dry ground depression is flooded with water, and wherein the modular arrangement of the pressure vessel modules is designed in such a way that the pressure vessel modules are arranged with respect to one another in the dry ground depression with their outer wall face-to face adjacent to one another.

Claims24

Dependent claims

An underwater pumped storage power plant reservoir in a dry ground depression, comprising:

a modular arrangement of several individual pressure vessel modules,
wherein the pressure vessel modules each have an outer wall with at least one flow opening for letting in and/or letting out water and are configured for independent operation such that the pressure vessel modules can each be filled with water independently and/or pumped empty independently when the ground depression is flooded with water, and
wherein the modular arrangement of the pressure vessel modules is configured in such a way that the pressure vessel modules are arranged with respect to one another in the dry ground depression with their outer wall being face-to-face adjacent to one another.

A pressure vessel module, for modular arrangement with at least one other pressure vessel module and independent operation therefrom, in a dry ground depression and/or for sinking in an already flooded ground depression, comprising:

an outer wall having at least one flow opening for letting in and/or letting out water, such that the pressure vessel module can be filled with water independently of the at least one other pressure vessel module and/or pumped empty independently of the at least one other pressure vessel module when the ground depression is flooded with water,
wherein the pressure vessel module is provided with its own turbine and pump, or its own pump turbine, separate from any turbine, pump, or pump turbine of the at least one other pressure vessel module,
wherein the pressure vessel module defines a longitudinal direction in such a way that the outer wall of the pressure vessel module has a jacket surrounding the longitudinal direction with an outer jacket surface, and/or
wherein the pressure vessel module is formed cylindrically at least over a portion along its longitudinal direction, such that the outer jacket surface along the portion of the longitudinal direction has a constant cross-sectional shape, and/or
wherein the pressure vessel module has a constant cross-sectional shape at least over the portion of the longitudinal direction, and/or
wherein the portion amounts to at least 25 percent of a longitudinal extent of the pressure vessel module.

3 more elements

Dependencies are inferred from the claim text.

Modular underwater pumped-storage power plant reservoir

Life of this patent

Modular underwater pumped-storage power plant reservoir

Life of this patent

Abstract

Claims24