London: A lack of grid connections and insufficient transmission capacity means that more than half the electricity produced by China's wind farms is going unused, a report claims. China wasted 2.8 terawatt hours of wind-generated electricity in the first six months of 2010, according to the State Electricity Regulatory Commission. "Large-scale wind-power generation is impossible in the short term due to inconsistency in the wind patterns," says Jiang Liping, vice-president of the State Grid Energy Research Institution.