Lafarge SA said its 50 pct-owned Lafarge Maroc unit signed a contract with La Compagnie du Vent to build a windfarm to provide renewable energy for the group’s new cement plant in Tetouan, Morocco. Work will begin in the autumn and the windfarm will begin generating power in early 2005 to cover almost half the plant’s needs, Lafarge said. Financial terms were not disclosed. Lafarge has previously announced it invested Euro 120m in the plant, which has a production capacity of 1Mt and was opened in May this year.