A bi-directional contra-rotating circular rail bearing Y-shaped compound blade fluid energy collection multi-unit power generating windmill, the windmill comprising: a windmill remote automatic control system (1); a Y-shaped compound blade (2) from a combining of single blades; a circular rail windmill body (3) bearing the Y-shaped compound blade (2); a circular windmill rail (4) bearing the circular rail windmill body (3) for operation; a circular rail connection cable pulling vehicle (5) running on the circular cable pulling vehicle rail to pull the circular rail windmill using a stay cable (209); a hydraulic energy collection multi-unit power generating system (6) or pneumatic energy collection multi-unit power generating system (7); the Y-shaped compound blade (2) is born by three circles of the circular rail windmill body (3) arranged equidistant thereon; the circular rail windmill body (3) has six circles.

A green community system centered around a transfer line compressed air energy storage system (TL-CAES). The TL-CAES system can supply compressed air to distant locations, and can be feed into companders to produce super-chilled air which can be used to improve the efficiency of natural gas generator sets. The generator sets can provide facilities with electricity and the super-chilled air can provide the facilities with heating, ventilation, and air-conditioning systems. The compressed air in the TL-CAES system is to be provided by a transportable compressed air storage system (T-CAES). Air compressors driven powered by green energy sources provide compressed air for the T-CAES system. The compressed air supply in conjunction with companders can further systems such as water purification and carbon dioxide extraction.

A green community system centered around a transfer line compressed air energy storage system (TL-CAES). The TL-CAES system can supply compressed air to distant locations, and can be feed into companders to produce super-chilled air which can be used to improve the efficiency of natural gas generator sets. The generator sets can provide facilities with electricity and the super-chilled air can provide the facilities with heating, ventilation, and air-conditioning systems. The compressed air in the TL-CAES system is to be provided by a transportable compressed air storage system (T-CAES). Air compressors driven powered by green energy sources provide compressed air for the T-CAES system. The compressed air supply in conjunction with companders can further systems such as water purification and carbon dioxide extraction.

A wind turbine plant is provided including: at least one wind turbine, one or more turbine auxiliaries, a transmission apparatus for transmitting electrical power generated by the at least one wind turbine to a power system, the transmission apparatus including an auxiliary circuit for transmitting power one or more turbine auxiliaries, the auxiliary circuit being connected to the at least one wind turbine, the power system and one or more turbine auxiliaries, the turbine auxiliaries being electrically fed by at least one wind turbine or the power system through the auxiliary circuit. The auxiliary circuit includes at least an energy storage, the turbine auxiliaries being electrically connected to the energy storage, and a controller.

A wind turbine plant is provided including: at least one wind turbine, one or more turbine auxiliaries, a transmission apparatus for transmitting electrical power generated by the at least one wind turbine to a power system, the transmission apparatus including an auxiliary circuit for transmitting power one or more turbine auxiliaries, the auxiliary circuit being connected to the at least one wind turbine, the power system and one or more turbine auxiliaries, the turbine auxiliaries being electrically fed by at least one wind turbine or the power system through the auxiliary circuit. The auxiliary circuit includes at least an energy storage, the turbine auxiliaries being electrically connected to the energy storage, and a controller.

A borehole pump assembly operable in association with for a borehole with a well casing therein, the borehole pump assembly including an elongate pump rod operably connected to a reciprocating drive and mounting a reciprocating pump at the lower end within the well casing and an air chamber provided immediately above the reciprocating pump and concentrically about the pump rod to provide hydraulic shock absorption between the reciprocating pump and a delivery pipeline.

A borehole pump assembly operable in association with for a borehole with a well casing therein, the borehole pump assembly including an elongate pump rod operably connected to a reciprocating drive and mounting a reciprocating pump at the lower end within the well casing and an air chamber provided immediately above the reciprocating pump and concentrically about the pump rod to provide hydraulic shock absorption between the reciprocating pump and a delivery pipeline.

A system suitable for extracting power directly from the main shafts of slow-moving mechanical systems. The system has a closed gas circuit having a lower-pressure (LP) side and a higher-pressure (HP) side. The LP side is at a pressure substantially greater than atmospheric pressure. The system includes primary compressors coupled to the wind turbines, thermal stores coupled to heat-exchangers on both the LP and HP sides of the closed gas circuit, a secondary motor-compressor set and an expander-generator set. The system allows some degree of independence between the input power resource and the output power. When substantial wind power is present and the demand for electrical power is weak, this system can export a fraction of the energy captured and store the rest. When the wind resource is low, the system can export more power than is being collected by drawing energy from the thermal stores.

A system suitable for extracting power directly from the main shafts of slow-moving mechanical systems. The system has a closed gas circuit having a lower-pressure (LP) side and a higher-pressure (HP) side. The LP side is at a pressure substantially greater than atmospheric pressure. The system includes primary compressors coupled to the wind turbines, thermal stores coupled to heat-exchangers on both the LP and HP sides of the closed gas circuit, a secondary motor-compressor set and an expander-generator set. The system allows some degree of independence between the input power resource and the output power. When substantial wind power is present and the demand for electrical power is weak, this system can export a fraction of the energy captured and store the rest. When the wind resource is low, the system can export more power than is being collected by drawing energy from the thermal stores.

A green community system centered around a transfer line compressed air energy storage system (TL-CAES). The TL-CAES system can supply compressed air to distant locations, and can be feed into companders to produce super-chilled air which can be used to improve the efficiency of natural gas generator sets. The generator sets can provide facilities with electricity and the super-chilled air can provide the facilities with heating, ventilation, and air-conditioning systems. The compressed air in the TL-CAES system is to be provided by a transportable compressed air storage system (T-CAES). Air compressors driven powered by green energy sources provide compressed air for the T-CAES system. The compressed air supply in conjunction with companders can further systems such as water purification and carbon dioxide extraction.