He made a commitment at an early age to try to find a way to provide farmers an alternative using wood burning methods for preparing their soil. A current problem is that the solar concentrator costs approximately $250, around a third of the average income in Kenya. Although Mwathi allows farmers to buy in installment payments of $62 each, the cost is still a prohibitively large outlay for many. In the last seven months since Mwathi started producing the solar concentrators, just five farmers in and around Gichira village have bought one. Mwathi hopes to expand his project, and lower the costs, by training young people to make the solar devices. He has approached Kenya's Ministry of Youth Affairs to see if they will support the project.