The present invention is an energy storage system comprising a mechanical bellows having an outer flexible material casing with one or more functional elements that operate as actuators for expanding and contracting the outer flexible material casing to store or deliver energy.

A method for operating a plurality of wind energy installations configured for supplying electric power to an electrical supply system, that each have an aerodynamic rotor with rotor blades and an electrical generator and also operating equipment, is disclosed. The wind energy installations are operated while they are not connected to the electrical supply system, where at least one of the wind energy installations produces electric power and inputs the electric power into a local DC voltage system that connects the wind energy installations if the at least one of the wind energy installations currently produces more power than needed for supplying its own operating equipment. Additionally or alternatively, the operating equipment is supplied totally or in part with power from the local DC voltage system if the at least one of the wind energy installations currently produces less power than needed for supplying its operating equipment.

A method for operating a plurality of wind energy installations configured for supplying electric power to an electrical supply system, that each have an aerodynamic rotor with rotor blades and an electrical generator and also operating equipment, is disclosed. The wind energy installations are operated while they are not connected to the electrical supply system, where at least one of the wind energy installations produces electric power and inputs the electric power into a local DC voltage system that connects the wind energy installations if the at least one of the wind energy installations currently produces more power than needed for supplying its own operating equipment. Additionally or alternatively, the operating equipment is supplied totally or in part with power from the local DC voltage system if the at least one of the wind energy installations currently produces less power than needed for supplying its operating equipment.

The Mechanical battery stores kinetic energy in the form of Potential Energy then converts it to electrical energy and has five ways to recharged which are the manual method, Manual Automatic method and in association with wind energy as well as the home electricity and solar energy.

What is new in the invention?

It is that the battery stores the kinetic energy in the form of Potential Energy then converts it to electrical energy, as well as the small ones of the same doesn't need chargers and have a long useful life compared to others, it is eco-friendly and also make advantage of both wind and solar energy complete and stable and generates AC or DC generating 1, 2 or 3 phases as needed.

The device of the present invention converts the kinetic energy of compressed air into electrical energy by setting up (N+1)-level wind turbines with same diameter but different rated power and rated speed in a pipeline and passing the high-speed airflow through the multi-levels of the wind turbine to reduce the airflow speed. The device converts wind energy into electrical energy and mixes atomized water when the compressed air flows through the wind turbines to improve the power generation efficiency. The device is a pipeline power generation device and a dedicated compressed air turbine. The pipeline power generation device can be used by multiple devices in parallel connecting with each other to increase the total power of peak-shaving power. As the result, the cost of the peak shaving power is reduced.

The device of the present invention converts the kinetic energy of compressed air into electrical energy by setting up (N+1)-level wind turbines with same diameter but different rated power and rated speed in a pipeline and passing the high-speed airflow through the multi-levels of the wind turbine to reduce the airflow speed. The device converts wind energy into electrical energy and mixes atomized water when the compressed air flows through the wind turbines to improve the power generation efficiency. The device is a pipeline power generation device and a dedicated compressed air turbine. The pipeline power generation device can be used by multiple devices in parallel connecting with each other to increase the total power of peak-shaving power. As the result, the cost of the peak shaving power is reduced.

The following relates to a Foundation for a wind turbine, including base means with a center zone and an outer zone, wherein the outer zone is configured for carrying most of the weight of the wind turbine. In the center zone, the base means include a chamber, wherein the foundation further includes energy storage means, wherein the energy storage means includes a flywheel pivotally arranged within the chamber for storing rotational energy, is provided. The energy storage means further includes transmission means for transforming energy of a wind turbine into rotational energy of the flywheel and for transforming rotational energy of the flywheel into electrical energy. The following further relates to a wind turbine and to a method for storing and using energy generated by a wind turbine.

The following relates to a Foundation for a wind turbine, including base means with a center zone and an outer zone, wherein the outer zone is configured for carrying most of the weight of the wind turbine. In the center zone, the base means include a chamber, wherein the foundation further includes energy storage means, wherein the energy storage means includes a flywheel pivotally arranged within the chamber for storing rotational energy, is provided. The energy storage means further includes transmission means for transforming energy of a wind turbine into rotational energy of the flywheel and for transforming rotational energy of the flywheel into electrical energy. The following further relates to a wind turbine and to a method for storing and using energy generated by a wind turbine.

A temporary kinetic energy storage-holder and energy transfer devise, comprising of a rotating cable preferably of steel, between two fixed rotating points each a thrust bearings and a one direction rotation hub at the kinetic energy source, coupled to at one end to a kinetic energy capturing devise such as wind turbine, water wheel, animal human or any other kinetic energy generating or collector devise, and at the other end, coupled to an electricity generating devise, a generator, directly or via a geared speed modifier to control generator impute. And all this attached to a supporting structure, tower, pole, pipe column or the ground, to transform kinetic energy into electricity.

A method is provided for operating an energy storage device that has a horizontal flywheel (1). The flywheel (1) has a mass ring made of concrete (3) and is at least partially embedded in the soil (4). The method includes operating a motor with energy from a first energy source to drive the flywheel (8) at a specified rotational speed and to store energy in the flywheel (1). The method then includes introducing to the motor (8) energy from a renewable energy source in a sufficient amount so that the energy from the renewable energy source and the energy stored in the flywheel (1) maintain rotation of the flywheel at the specified rotational speed.