Cassie Langstraat wrote:Found this article this weekend about India creating the world's LARGEST solar steam cooking system. It has 73 solar dishes that will be able to feed 20,000 people, TWICE a day!
Rebecca Norman wrote:We've been using two of those reflector-concentrators for about 15 years. It was a Swiss NGO that installed it, as a workshop with our students, who had to do all the welding and paint the silver backing on glass and cut the mirrors, etc. All the mirrors have been replaced several times over the years.
adam sheppard wrote:What about heating oil to store heat for later use?