According to Shi Pengfei of the Chinese Wind Energy Association, China's newly installed wind power amounted to 4.6 GW in the first half of 2009, up from 2.063 GW in the same period last year. In the first half of 2009, China manufactured wind power equipment with a capacity of 4.27 GW, up 135.7% year on year, says the China Investment Consultation Company (CIC). Figures from the State Grid show that, by the end of June, China's total installed capacity of wind power connected to the grid amounted to 11.81 GW, up 101% year on year. Inner Mongolia remains the most active area: according to the Inner Mongolia Electric Power Industry Association, by the end of May the region's cumulative installed capacity connected to the grid amounted to 3.15 GW of wind power, the highest in the entire country. Inner Mongolia's total installed wind power is expected to top 5 GW in 2010. Jiang Qian, chief researcher of the energy research department of CIC, says that nearly one third of China's wind turbines remain idle because of a lack of access to power grids.