
This is far, far more difficult and far, far more important than you might think.
The key is to get the cell to take in the solar energy — not reflect it — and convert it to useful energy.
Now a concentrator solar cell produced by Boeing-Spectrolab has recently achieved a world-record conversion efficiency of 40.7%. Which is totally astounding. True, this is in laboratory conditions but soon in the real world. Only a few years ago 4% was considered a major breakthrough.
Thus the China International Solar Photovoltaic Industry Fair which will be held October 17-19 at Tianjin Binhai International Center will be important, exciting, possibly history making.
Average annual growth rate for the past three years has been an amazing 49.8%. The export value of China solar-PV modules was over $1.2 billion in 2006. This show will be major history in the making.
Source: China Trade Information