A method for repairing an electric generator having a rotor that rotates about a vertical axis, the rotor including a spider having a number of spider arms extending radially away from the axis, and a rim surrounding the spider. The weight of the rim is normally carried at least in part by rim support ledges of the spider arms. The method for repair includes supporting the rim from the top of the spider and thereby relieving some or all of the weight of the rim being supported by the rim support ledges.

A subsea energy storage installation comprises a pumped-storage system having pumping and hydropower generation components for, selectively, converting electricity into potential energy by expelling water from within a tank into the surrounding sea and for generating electricity from an incoming flow of water re-entering the tank under hydrostatic pressure. The tank comprises at least one elongate rigid pipeline that may he lowered to the seabed as part of a to viable unit or laid on the seabed as a pipe string launched from a surface vessel.

A subsea energy storage installation comprises a pumped-storage system having pumping and hydropower generation components for, selectively, converting electricity into potential energy by expelling water from within a tank into the surrounding sea and for generating electricity from an incoming flow of water re-entering the tank under hydrostatic pressure. The tank comprises at least one elongate rigid pipeline that may he lowered to the seabed as part of a to viable unit or laid on the seabed as a pipe string launched from a surface vessel.

Described is a process whereby the water discharged from a Waste Water Treatment Plant (WWTP) can be used to generate electricity.

Described is a process whereby the water discharged from a Waste Water Treatment Plant (WWTP) can be used to generate electricity.

The present invention provides of a system for generating electricity from air hydropower. The system is having a pump from a reservoir. Also, at least one vessel for receiving pumped water therein, the at least one vessel having a pressure plate being buoyant over the water and pressurized pneumatically from other side to increase pressure over the water. The pressurized water is automised and released over the turbine for generating electricity. The system has an advantage of having less construction and maintenance cost by using very small area. Further, the system has an advantage of being converted from thermal power to air hydro power plant.

The present invention provides of a system for generating electricity from air hydropower. The system is having a pump from a reservoir. Also, at least one vessel for receiving pumped water therein, the at least one vessel having a pressure plate being buoyant over the water and pressurized pneumatically from other side to increase pressure over the water. The pressurized water is automised and released over the turbine for generating electricity. The system has an advantage of having less construction and maintenance cost by using very small area. Further, the system has an advantage of being converted from thermal power to air hydro power plant.

A transportable gravitational system and method for generating consistent electrical power and generating minimized pollution. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. 1.72(b). As stated in 37 C.F.R. 1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading Abstract of the Disclosure. The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

A generating apparatus for generating electrical power from a water flow to electrical energy includes a support structure; an electrical power generation arrangement; and a drain tank. The support structure includes a pipe extending into seawater, a tidal stream generation device in the pipe, and a water tank in fluid communication with the pipe. The tidal stream generation device includes a turbine for directing seawater from the pipe therein, a shaft co-rotated with the turbine, a reduction gearbox connected to the shaft, an output shaft extending out of the reduction gearbox, an alternator driven by the output shaft to convert mechanical energy to electrical energy, and an electrical grid electrically connected to the alternator. The electrical power generation arrangement includes at least one electrical energy generation device in communication with the water tank. Each electrical energy generation device includes interconnected bends and tidal stream generators in the bends.

A generating apparatus for generating electrical power from a water flow to electrical energy includes a support structure; an electrical power generation arrangement; and a drain tank. The support structure includes a pipe extending into seawater, a tidal stream generation device in the pipe, and a water tank in fluid communication with the pipe. The tidal stream generation device includes a turbine for directing seawater from the pipe therein, a shaft co-rotated with the turbine, a reduction gearbox connected to the shaft, an output shaft extending out of the reduction gearbox, an alternator driven by the output shaft to convert mechanical energy to electrical energy, and an electrical grid electrically connected to the alternator. The electrical power generation arrangement includes at least one electrical energy generation device in communication with the water tank. Each electrical energy generation device includes interconnected bends and tidal stream generators in the bends.