Lighting way for solar power

SHANGHAI - Zhao Chunjiang's dream is that one day every rooftop in this eastern metropolis will have a solar power generator.

Although he admits that day is still a way off, as the director of Shanghai University of Electric Power's solar energy institute he hopes to lead by example.

In 2006 he installed 22 solar panels on the roof of his apartment to gather data on the energy source. To date, he says he has generated some 14,000 kilowatt-hours of power without a breakdown - enough to satisfy the needs of his family and export to the State Grid.