Given the urgency of need for cheap and renewable household energy, Dar proposed a new solar cooker capable of mass production which combined durability, efficiency, and low cost. He partnered with Louise Meyer who had conducted solar cooking programs in Africa. Based on her field experience, the requirements for such a solar cooker were elaborated to include numerous considerations like portability, simplicity, and allure. Scientists and engineers at the Florida Solar Energy Center accepted the challenge and produced designs for an elegant cooker with only four components. It is called the HotPot.