The question/challenge you raise is our clean stoves programs are working on. Before answering the questions, I think first it is important to know what are demand and supply situations in the area you are working on? You mentioned cost of gas is almost the same as cost of fossil fuel? Do you mean unit cost or monthly expenditure? If there is no additional cost, why households would not convert to gas solution which is clearly more convenient and clean. Then is it a supply issue? We also focus on rural areas that household continue rely on solid fuel (biomass or coal) for cooking. The reasons are that in many rural areas, biomass is easily available at no cost or little cost. So even though they may have access to LPG, they still rely on biomass as primary cooking fuel. This is the case in Indonesia which has successfully implemented a large scale LPG program. Even though LPG is subsidized, 40% of people still reply on biomass as primary cooking. They often have a LPG stove at home but use LPG as a supplementary cooking fuel.
I would like to invite you to look CSI phase I report in China, Indonesia, and Lao PDR which are available on the platform. As the first step, we did demand, supply, and institutional mapping, then develop intervention strategies accordingly.