SciDev.Net: Governments in South Asia must support solar power to make it affordable to the rural poor, says development expert Vishaka Hidellage. The accelerating demands for energy in fast-growing South Asia are mostly being met by increasing the centralised generation of non-renewable energy — based on coal, gas and petroleum — and its distribution through the electricity grid. Yet interest in renewable energy, such as grid-connected solar systems, is rising with the region’s …