 This is the VOA Special English Agriculture Report. Seth de Bolt is a plant scientist at the University of Kentucky in the United States. He and other scientists wanted to find a source of fuel that poor people in rural areas of developing countries could use to make electricity. The United Nations Development Program says a billion and a half people have no electricity. A billion others have an undependable supply. Professor de Bolt went on a study trip to rural Indonesia. He saw that everywhere he went there was very little waste in the use of agricultural products. Everything that farmers grew was used for something. Even the remains of fruit that people did not eat were fed to chickens. Little waste meant there was little that could be used for fuel. Growing a separate fuel crop would take land away from food crops. That was something Professor de Bolt did not want to do. He says the people at most risk of energy poverty are often the same people who have food insecurity issues as well. Any change in food availability would hurt that group the most. But he found two items that were in plentiful supply and would not create competition between food and fuel. Coconut shells and mango pits are generally thrown out. Yet Professor de Bolt says they have a lot of energy stored in them. He says they have an excellent heating value which he compares to coal of low to moderate grade. The same is true for the pit of an olive, peach or cherry or the shell of an almond or walnut. All someone needs is a way to release that energy. Seth de Bolt says a company in India husk power systems is using small generators in villages to make electricity from rice halls. The process used is called gasification. Heating plant matter in a low oxygen chamber releases gases. These can be burned in an engine that turns a power generating turbine. Professor de Bolt says he and his team see possibilities for coconut and mango power. They published a study in the proceedings of the National Academy of Sciences. It says these small scale production systems could provide as much as 13% of the energy needs of a country like Indonesia. Other tropical countries with large crops of coconuts, mangoes and similar fruit could benefit as well. But Professor de Bolt says this is not a perfect solution. There are technical questions like how to safely deal with the hazardous waste that gasification can produce. And there needs to be money to get these projects started. For VOA Special English, I'm Alex Villareal.