Energy storage and management using pumping

A computer program product embodied in a non-transitory computer readable medium for energy management, the computer program product comprising code which causes one or more processors to perform operations of:

• connecting an energy source to a pump-turbine energy management system, wherein the pump-turbine energy management system includes a pump-energy storage subsystem, wherein the pump-energy storage subsystem includes fluid-based compression, wherein a plurality of pumps and pressure vessels use a working fluid under pressure to compress a gas, wherein the working fluid and gas are separated by a barrier to prevent mixing and diffusion;
• storing energy from the energy source in the pump-energy storage subsystem, wherein the pump-energy storage subsystem includes compressed gas storage;
• calculating a valve-based flow control setting for recovering energy from the pump-energy storage subsystem, wherein the valve-based flow control setting controls flow of the working fluid and gas in the pump-energy storage subsystem;
• energizing one or more valves in the pump-turbine energy management system, wherein the energizing enables energy recovery;
• and
• recovering energy from the pump-energy storage subsystem using a pump-turbine recovery subsystem enabled by the one or more valves that were energized.

A computer system for energy management comprising:

• a memory which stores instructions;
• one or more processors attached to the memory wherein the one or more processors, when executing the instructions which are stored, are configured to:
• connect an energy source to a pump-turbine energy management system, wherein the pump-turbine energy management system includes a pump-energy storage subsystem, wherein the pump-energy storage subsystem includes fluid-based compression, wherein a plurality of pumps and pressure vessels use a working fluid under pressure to compress a gas, wherein the working fluid and gas are separated by a barrier to prevent mixing and diffusion;
• store energy from the energy source in the pump-energy storage subsystem, wherein the pump-energy storage subsystem includes compressed gas storage;
• calculate a valve-based flow control setting for recovering energy from the pump-energy storage subsystem, wherein the valve-based flow control setting controls flow of the working fluid and gas in the pump-energy storage subsystem;
• energize one or more valves in the pump-turbine energy management system, wherein the energizing enables energy recovery;
• and
• recover energy from the pump-energy storage subsystem using a pump-turbine recovery subsystem enabled by the one or more valves that were energized.