CHUADANGA: In Bangladesh’s farm belt, solar-powered irrigation pumps are promoted as a way to cut diesel use, lower irrigation costs and, when pumps are idle, generate extra income for farmers who can sell surplus electricity to the grid. Solar panels installed in or beside crop fields to power groundwater irrigation pumps can be a better alternative to paying for rising cost of fuel for traditional generators, experts say. But the technology still has limited uptake. The Bangladesh Agricultur...