SHANGHAI: China's foreign direct investment (FDI) and power usage rose in September, offering more evidence that the country's economic recovery is gaining momentum. FDI in the world's third-largest economy rose by nearly one fifth in September, to $7.9 billion for the month, the Ministry of Commerce reported yesterday. Power consumption, which is viewed by some experts as a key measure of industrial activity, also picked up in September. It rose 10.2 percent to 322.4 billion kwh, a 2 percentage point rise over August's 8 percent increase, the National Energy Administration reported.