PERFORMANCE OF SMALL CAPACITY SOLAR PUMP IN EASTERN REGION OF INDIA
Solar energy use for groundwater abstraction is one of the most viable options for smallholders’ irrigation in current scenario of increasing fuel prices. Therefore, the dissemination and adoption of solar pumps of low capacities among these farmers is in demand. In this paper a case study was in eastern region to assess the performance of 3horsepower solar pump, as this capacity pump is currently being promoted by the governments to small farmers at subsidised rates. In eastern region where groundwater regime in most of the area is ranging5-10 m bgl with annual fluctuation of ±2 to ±4 m, and abstracted groundwater by a 3 horsepower solar pumpis rangedfrom 100-173 m3/day, depending upon the months on a bright day. Thispump also offers a delivery pressure head 1.0- 1.5 kg/cm2, and therefore facilitates pressured irrigation for improved water use efficiency.