TERI’s Light a Billion Lives campaign is a great example. They provide a solar charging station for villages, and lamps for all the homes. Each solar lantern in its life of ten years replaces about 500 - 600 litres of kerosene, mitigating about 1.5 tonnes of CO2. labl.teriin.org.
A wonderful application of solar is for portable lighting. These mainly replace kerosene lamps in uses such as for street hawker stalls, solar head torches for midwives and agricultural workers, and allowing work after dark for migrant workers who live in temporary shanty accommodation and have no access to electricity.