In combination with specific cases and based on the quantitative forecast of market price by applying probability method, the paper introduces the means to make quantity price decision based on the principles of best benefit, balanced supply and demand, and reasonable stocks.

The article introduces defining the range of economic evaluation according to the characters of gas exploitation projects, reasonably confirming economic evaluation period based on the characteristics of gas exploitation and the request of technology, decision-making price, the scope and amount of investment, cost of gas production and other parameters and indexes.

This paper presents a bidding decision method for generation companies(GENCOS) based on evaluation of market effect power.

The infrastructure, functions and operation flow of power provider oriented electricity market management system are introduced, by which the collaboration is supported between power groups and their power plants for assisting bidding decision-making in electricity market.

Discussing on engineer project pricing decision models;