When you think of wind power, large turbines come to mind. The Wall Street Journal features several entrepreneurs who are proving the value of quieter, smaller-scale, and less conspicuous equipment as wind power becomes an important part of energy production. Aeromine Technologies’ CEO David Asarnow talks with reporter James R. Hagerty about the firm’s innovative wind-harvesting unit – which is bladeless and motionless, using aerodynamic fins to maximize wind speed. The units were recently installed on the roof of a BASF factory in Michigan. The technology can be paired with solar panels to generate on-site power on the roofs of distribution centers, office buildings and military facilities, among other places.