This diagram shows that Maryland has wind resources consistent with large scale wind power generation. Several areas of the map are estimated to have good and excellent wind windpower. These are the barrier islands along the Atlantic coast, the southeastern shore of Chesapeake Bay, and ridge crests in the western section of the map, west of Cumberland.

A renewable source of energy, wind is organized according to wind power classes, which are derived from normal airstream speeds. The classes range from Class 1 (the least) to Class 7 (the maximum). Ordinarily, at 150 feet , windpower Class 4 or greater is effective for making wind energy with large turbines. Class 4 and over are deemed high-quality energy supplies. Individual locations in the Class 3 zones might have greater wind power class values at 80 meters than displayed on the 50 meter map as a consequence of possible high wind shear. Due to the advances in machinery, a number of regions in the Class 3 regions may appropriate for utility-scale wind power company development.