"Within five years, solar power will be cheap enough to compete with carbon-generated electricity... In a decade, the cost may have fallen so dramatically that solar cells could undercut oil, gas, coal and nuclear power by up to half. The secret? ...a dark polymer foil, as thin a sheet of paper. It is 200 times lighter than the normal glass-based solar materials, which require expensive substrates and roof support... Rather than being manufactured laboriously piece by piece, it can be mass-produced in cheap rolls like packaging..."

See: London Telegraph article (2007-02)