Study of Unit Commitment Model Considering Domestic Producing Rate of Ammonia

Abstract

Because of the global warming, low cabonization has been received attention from all over the world. In Japan, efforts are being made to build the power system with realization of low carbonization because it is nesesarry to reduce CO2 emissions in electric power sector which has the highest rate of CO2 emission. As ammonia and hydrogen is known as carbon-free fuels, it has been paid attention for the use as a fuel. Another issue in Japan is the low energy self-sufficiency ratio. Although the introduction of renewable energy has improved the energy self-sufficiency rate, it is necessary to store surplus power of renewable energy because renewable energy sources do not have a supply-demand adjustment function. In this study, we propose the model which can optimize the operating status of power plants when giving value to domestic manufacturing rate of ammonia. To verify the proposed model, we performed the numerical simulation in four cases.