(ICIS) -- Asian prices of polysilicon - the main material used in solar cells and panels - are expected to increase this year, as demand outstrips supply, especially in a burgeoning spot market, industry players said on Thursday.
One megawatt of photovoltaic power requires seven tonnes, or 7,000kg, of polysilicon material. Polysilicon is traded in chunks, rods and granules.
In a sign of a firm market, China's LDK Solar - which manufactures polysilicon, mono and multicrystalline ingots, wafers, modules and cells - raised its outlook for the fiscal year 2011 earlier this week.
The global solar-grade polysilicon capacity rose to 140,000 tonnes in 2010, up from 90,000 tonnes in 2009, according to an ICIS survey.