Solar Energy Perspectives - IEA

Solar Energy Perspectives: Solar heat
Figure 7.5 CPC collector concentrating diffuse light
Source: Ritter Solar.
Key point
At low concentration levels CPC collectors need not track the sun.
Photo 7.1 Solar box cookers
Source: Atlas cuisine solaire.
Key point
Solar box cookers for cereals and vegetables help to reduce use of fuel wood.
The lowest-cost options consist of only such reflectors, and possibly clear glass salad
bowls up-turned over the pot or plastic bags (Photo 7.2). Such “panel cookers” or “funnel
cookers” are produced from recycled materials in some developing countries for as little
as USD 2.00.
128
© OECD/IEA, 2011