隨著科技的進步，人民對電力的需求與日俱增，然而台灣的電力系統由於機組的汰舊換新，將會造成系統備用容量率不足的情況發生。由於日本爆發核災事件的影響，引發對核能安全的各種議論，對於龍門核能發電廠的商轉與否，還帶有一定的爭議性，若核發電廠未能如期商轉，台灣電力系統的備用容量率將低於10%，對系統之運轉與安全性，勢必造成衝擊。雖然政府也積極地推動再生能源之開發，但短期內無法彌補電力的缺口，因此如何進行需求面管理，以有效降低尖峰負載，應為當務之急。再者，為因應再生能源之間歇特性，裝設儲能裝置已然不可或缺。搭配負載管理技術，以善用儲能裝置，使其兼具需求面管理之功能，當更具實務意義。
本研究針對裝設有再生能源及儲能裝置之家庭用電，並採現行時間電價之計費模式，利用「截峰法」及「成本法」，進行電能管理之模擬分析，以最佳化的方式求取儲能裝置之充放電曲線。此外，為強化我國需求面管理之策略，將負載因數作為電力系統可靠度的參考指標，仿效現行功率因數調整費措施，提出負載因數獎勵之構想，誘導使用者降低系統尖峰負載，紓解備用容量率偏低之窘境。最後，將負載因數獎勵納入成本計算考量，採用「截峰法」評估獎勵之合理範圍，最後以「成本法」計算出儲能裝置最佳容量。

As the technology is improved day by day, people’s requirement for electricity is growing afterwards. However, due to replacement of generator units, the power system is going to face a dilemma about lack of reverse margin. In addition, the nuclear disaster ,broke out on March 11th in Japen, leads to many discussions about nuclear safety. Thus, will the Long-Meng nuclear power plant be running or not? It is still a big issue in Taiwan. If the Long-Meng nuclear power plant don’t work on time, the rate of reserve margin will go down below 10%. It may impact on the reliability of power system. Although the government is planning to develop renewable energy source, it is not possible to compensate power shortage instantly. Therefore, a well demand-side management strategy, which is able to effectively reduce the peak load, should be a priority. Furthermore, in response to the intermittent characteristics of renewable energy, installation of energy storage device has become a necessary equipment. With techniques of load management and energy storage device, the demand-side management can be practical meaningfully.
In this thesis, a household electricity, under time-of-use rate with renewable energy generators and energy storage device, is used.as an energy management model. “Peak-sheaving” and “Minimal Cost” are the objective function of proposed energy management system to optimize the schedule of energy storage device. Besides, to strengthen the demand-side management strategy in our country, this thesis recommends load factor as a reference index of power system reliability. As well, this thesis proposes an ideal of load factor incentive, with which it can lead people to rise load factor, to reduce the peak load of power system and to relieve system from the problem of reserve margin outage. In the end, this thesis will take the load factor incentive under consideration, and uses SQP function to solve “Minimal cost” and to determine optimal capacity of energy storage device.

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