1. A method for calculating potential power generation for a wind farm, the wind farm including a plurality of wind turbines, the method comprising the steps of: measuring the power generated by said wind farm; acquiring turbine data from at least a subset of the plurality of wind turbines, the wind turbine data including local wind speed and power generated at the local wind speed; acquiring air density data; generating a power curve from the turbine data and the air density data, the power curve plotting the relationship between wind speed and power generated; calculating power lost due to availability, subcurve, and curtailment, the power loss calculated for at least said subset of turbines; and aggregating the power lost in order to determine an aggregate power loss for the wind farm.