Franklin Electric’s SubDrive SolarPAK technology gives water pump installers and users the option to use solar as the power source on virtually any 4” well. The rugged, high-output system is capable of a wide range of applications, including irrigation systems, tank and cistern filling, renewable energy projects and rural water supply for villages, cottages and homesteads. With SolarPAK’s variable-frequency drive, the pump produces water even on cloudy days or with minimal sunlight.