Abstract:
As Thailand has been being developed continuously, its GDP as well as electricity demand have also been being increased. Then, government must appropriately impose energy policy to cope with the increasing demand in long term and to enhance the national energy security. In addition, fuel diversification must be taken into consideration, to lessen dependence of any particular fuel. For this matter, the ministry of energy developed Power Development Plan (PDP) and Alternative Energy Development Plan (AEDP). However, an increasing use of alternative energy from renewable sources may lead to problems in power system security due to drastic change in net power demand. Thus, more complicated power system planning and control are required in the future. This thesis proposes a concept of power development planning considering regional condition concerning fuel restrictions in each area. Area-based reserve margin index or area-based LOLE index will be calculated and used to determine in which area a new power plant should be added first. In addition, power plant response to load change is also considered. New types of power plant with faster response will be chosen to match with demand fluctuation due to high portion of renewable energy. The load pattern will be classified in the three levels; Peak Load, Intermediate Load, and Base Load. This proposed method was applied to Thailand Power Development Plan 2015-2036 (PDP2015). The obtained results illustrated the benefits of power development planning considering regional condition and power plant response to load change that the new power plants installed from this planning method can well respond to future load fluctuation