There are two power supply bureaus, Shinan and Shibei, in Guiyang. The power nets of these two bureaus cover around 12,400 square kilometers, governing 40 substations and 68 main transformers with the capacity totaling to 2,807,900kVA. The indicators of safety production and economic effect and technique have reached the national standard. In 2001, 11.665 billion Kwh were sold. The automatic system of power distribution and business management has been applied widely in Guiyang. The power supply net has covered every village.