DIRECT-DRIVE BATTERYLESS WIND-ELECTRIC SYSTEM These are the least common wind-electric systems, typically used for water pumping. A turbine is matched to a pump, often through an electronic controller. When the wind blows, water is pumped to an elevated tank, a stock-watering tank, or directly to the land to irrigate. These systems can be simple and cost effective in the right situation. Direct-drive systems are also used for heating, which can be a good match, since it’s normally colder when it’s windy. But heating is a big load, so large turbines are needed.