The AGC (Automatic Generation Control) bring external effect for other units, power companies, users and society with its externality. Unreasonable compensation will undermine the enthusiasm of AGC units. At the same time, AGC has a supply-side attributes of common resources, and it may have a "free rider" behavior in four dimensions of capacity, quality, cost and price. According to two exclusive ideas of compensating external benefits for AS and increasing the cost of exclusion, it builds evaluation indexes system and sets up the basic model for compensation mechanism of AGC, then taking an example to analysis in which it reflects the narrowing gap among units’ profit and the recovery of units’ marginal social cost.

Beijing is the second largest energy consumption city in China, so it is necessary of analyzing its energy consumption situation. The energy flow of Beijing’s energy consumption was analyzed by Energy Balance Sheet (EBS), which is an effective tool for researching energy economy and energy sustainable development. Different stages of energy flow in the process of Beijing’s energy utilization were analyzed by EBS, and the indicators including total energy consumption, comparison, structure, dynamic changes and energy intensity at all stages of energy flow were extracted. Further, the structure feature, change process, development trend of Beijing’s energy consumption was obtained, and the relationship between resources, economy, and energy was explained. Finally, some suggestions for the next focusing work on effective utilization of Beijing’s energy were proposed.