An omni-directional, shrouded vertical wind turbine for generating electricity, the omni directional, shrouded vertical wind turbine comprising an omni-directional shroud including, a) a plurality of curved members (10a-10e) defining a central collection chamber substantially expanding in a direction of airflow there within; b) a plurality of substantially vertical support members(6.1-6.3); c) a hollow member wherein the hollow member expands in cross section in a direction of air flow; the omni-directional shrouded vertical wind turbine further comprising: d) a rotating member disposed above the central collection chamber wherein the rotating member is connected to a generator(15a or 15b) to generate electricity from rotation of the rotating member; wherein the rotating member is connected to the omni directional shroud, and is located near an inlet of the hollow member; wherein each of the plurality of curved members (10a-10e) is connected to at least one of the plurality of substantially vertical support members(6.1-6.3) so as to form a plurality of air inlets into the central collection chamber; wherein the plurality of curved members(10a-10e) are shaped to change the direction of the airflow entering, from near horizontal to near vertical and the plurality of substantially vertical support members(6.1-6.3) are spaced radially; focusing air entering the shroud directly to all of the underside of an entire lower surface of the rotating member; wherein the plurality of curved members(10a-10e) form a central collection chamber that expands in cross section from a location furthest from the rotating member to a location nearest the rotating member; characterized in that at least one of the plurality of curved members and the plurality of substantially vertical support members(6.1-6.3) forms a passage way that is closest to the central axis of the collection chamber to, direct air entering the shroud, to an opposite side across a face of air passage ways of an internal aspect of the omni-directional, shrouded vertical wind turbine, not directly facing the wind, so as to form and act as a fluid dynamic air gate, to reduce escape of air entering the chamber, by leakage through passage ways (13a-13e) on the opposite side and adjacent sides of the omni-directional shrouded vertical wind turbine; a) a plurality of curved members (10a-10e) defining a central collection chamber substantially expanding in a direction of airflow there within; b) a plurality of substantially vertical support members(6.1-6.3); c) a hollow member wherein the hollow member expands in cross section in a direction of air flow; the omni-directional shrouded vertical wind turbine further comprising: d) a rotating member disposed above the central collection chamber wherein the rotating member is connected to a generator(15a or 15b) to generate electricity from rotation of the rotating member; wherein the rotating member is connected to the omni directional shroud, and is located near an inlet of the hollow member; wherein each of the plurality of curved members (10a-10e) is connected to at least one of the plurality of substantially vertical support members(6.1-6.3) so as to form a plurality of air inlets into the central collection chamber; wherein the plurality of curved members(10a-10e) are shaped to change the direction of the airflow entering, from near horizontal to near vertical and the plurality of substantially vertical support members(6.1-6.3) are spaced radially; focusing air entering the shroud directly to all of the underside of an entire lower surface of the rotating member; wherein the plurality of curved members(10a-10e) form a central collection chamber that expands in cross section from a location furthest from the rotating member to a location nearest the rotating member; characterized in that at least one of the plurality of curved members and the plurality of substantially vertical support members(6.1-6.3) forms a passage way that is closest to the central axis of the collection chamber to, direct air entering the shroud, to an opposite side across a face of air passage ways of an internal aspect of the omni-directional, shrouded vertical wind turbine, not directly facing the wind, so as to form and act as a fluid dynamic air gate, to reduce escape of air entering the chamber, by leakage through passage ways (13a-13e) on the opposite side and adjacent sides of the omni-directional shrouded vertical wind turbine;