Trina Solar has signed a long-term polysilicon supply agreement with a subsidiary of GCL Silicon Technology.

Under this agreement, GCL Silicon Technology will supply Trina Solar with virgin polysilicon sufficient to produce approximately 2,600MW of solar modules in aggregate over eight years. Delivery of polysilicon at predetermined prices will start in April 2008.

After signing this agreement and together with other polysilicon supply agreements, the company has now secured approximately 95% of its estimated silicon feedstock requirements for 2008, an equivalent of approximately 195MW based on a production target of 200 to 210MW of module output.

Jifan Gao, chairman and CEO of Trina Solar, said: This agreement represents a key component of our strategy to secure sufficient feedstock to support our sales growth. Combined with our other long-term agreements, planned in-house polysilicon production and integrated manufacturing cost efficiencies, we believe we are in a strong position to expand our margins in the long term as the cost of solar energy approaches grid parity.