Test, verify, analyze, and evaluate physical and financial elements of enterprise energy usage in accordance with related national regulations and standards, as a way of strengthening the scientific enterprise energy management and cost-effective means and methods of energy consumption, with strong oversight and management role. Adoption of scientific and standardized methods of quantitative analysis of enterprise energy consumption ,including energy efficiency, consumption levels, economic and environmental effects auditing, monitoring, diagnosis and evaluation to pinpoint potential areas of energy-saving, which provides basis for the development and implementation of energy-saving technology program, but also helps obtain financial assistance from the government and relevant departments, tax preference and raise funds for energy conservation as a credit guarantee qualification.