Wind power installation

A method for providing a wind power installation, the method comprising:

• providing a support frame, wherein the support frame is configured to be mounted between and directly attached to at least three radially arranged structures at a predetermined height above a ground surface, wherein the at least three radially arranged structures include buildings;
• providing a circular frame interconnecting the at least three radially arranged structures at the predetermined height above the ground surface;
• providing a shaft rotatably secured to the support frame at the predetermined height above the ground surface, wherein the shaft is configured to rotate about a vertical axis, the at least three radially arranged structures being oriented in a radial direction relative to the vertical axis of the shaft;
• and
• providing a blade system mounted on the shaft, wherein:
• the circular frame is circumferentially spaced away from the shaft;
• the support frame radially extends from the shaft towards the circular frame;
• and
• the support frame includes:
• a first support frame end, the first support frame end being rotatably and directly secured to the shaft;
• and
• a second support frame end, the second support frame end being directly and rigidly fixed to the circular frame at the predetermined height.

A wind power installation comprising:

• a support frame, wherein the support frame is configured to be mounted between and directly attached to at least three radially arranged structures at a predetermined height above a ground surface, wherein the at least three radially arranged structures include buildings, wherein the support frame is configured to be located at a center of a space formed between the at least three radially arranged structures;
• a circular frame interconnecting the at least three radially arranged structures at the predetermined height above the ground surface;
• a shaft rotatably secured to the support frame at the predetermined height above the ground surface, wherein the shaft is configured to rotate about a vertical axis, wherein the at least three radially arranged structures are oriented in a radial direction relative to the vertical axis of the shaft, wherein the shaft is functionally connected to an electric generator;
• and
• a blade system mounted on the shaft, wherein the blade system includes a plurality of blades;
• additional blade systems, wherein the additional blade systems are disposed above the blade system and one above another on the shaft;
• and
• an air nacelle fixed to the support frame and configured to redirect air flows to the blade system, wherein:
• the circular frame is circumferentially spaced away from the shaft;
• the support frame radially extends from the shaft towards the circular frame;
• and
• the support frame includes:
• a first support frame end, the first support frame end being rotatably and directly secured to the shaft;
• and
• a second support frame end, the second support frame end being directly and rigidly fixed to the circular frame at the predetermined height.