Estimation of Unit Commitment when Fuel Ammonia is Introduced to Coal-fired Power Plants

Abstract

The unit commitment of the thermal power units is calculated when fuel ammonia is introduced to the coal-fired power units; the capacity of power units in the discussed area consists of average capacity of existing power units in Japan. The fuel ammonia is supposed to introduce to the flexible coal-fired power units which cover the load frequency control,

LFC, of the power system. It is found that the introduction of the fuel ammonia to the coal-fired power units, that are operated as LFC, is responsible for the increase of utilization factor of the units. The ammonia supply rate enlarged in the case that the fuel ammonia price is set relatively higher than that of gray ammonia, due to the increased utilization factor of the coal-fired power units.