HEI
Water
In Beijing, local springs, rivers, and reservoirs are used greatly. The springs and rivers are used to supply water and the reservoirs are used to store the waters of the YongDing mountain and to regulate the flows of upstream rivers. The Ming Tombs reservoir's waters in specific are used to feed a hydroelectric power plant.
Energy
Coal and charcoal were once used as popular energy sources, but they have been replaced with natural gas and liquid petroleum.
In Beijing, local springs, rivers, and reservoirs are used greatly. The springs and rivers are used to supply water and the reservoirs are used to store the waters of the YongDing mountain and to regulate the flows of upstream rivers. The Ming Tombs reservoir's waters in specific are used to feed a hydroelectric power plant.
Energy
Coal and charcoal were once used as popular energy sources, but they have been replaced with natural gas and liquid petroleum.