@ARTICLE{Krawczyk_Piotr_Evaluation_2020, author={Krawczyk, Piotr and Śliwińska, Anna and Ćwięczek, Mariusz}, volume={vol. 23}, number={No 2}, journal={Polityka Energetyczna - Energy Policy Journal}, pages={67-90}, howpublished={online}, year={2020}, publisher={Instytut Gospodarki Surowcami Mineralnymi i Energią PAN}, abstract={The article present results of economic efficiency evaluation of storage technology for electricity from coal power plants in large-scale chemical batteries. The benefits of using a chemical lithium-ion battery in a public power plant based on hard coal were determined on the basis of data for 2018 concerning the mining process. The analysis included the potential effects of using a 400 MWh battery to optimize the operation of 350 MW power units in a coal power plant. The research team estimated financial benefits resulting from the reduction of peak loads and the work of individual power units in the optimal load range. The calculations included benefits resulting from the reduction of fuel consumption (coal and heavy fuel oil – mazout) as well as from the reduction of expenses on CO2 emission allowances. The evaluation of the economic efficiency was enabled by a model created to calculate the NPV and IRR ratios. The research also included a sensitivity analysis which took identified risk factors associated with changes in the calculation assumptions adopted in the analysis into account. The evaluation showed that the use of large-scale chemical batteries to optimize the operation of power units of the subject coal power plant is profitable. A conducted sensitivity analysis of the economic efficiency showed that the efficiency of the battery and the costs of its construction have the greatest impact on the economic efficiency of the technology of producing electricity in a coal power plant with the use of a chemical battery. Other variables affecting the result of economic efficiency are the factors related to battery durability and fuels: battery life cycle, prices of fuels, prices of CO2 emission allowances and decrease of the battery capacity during its lifetime.}, type={Article}, title={Evaluation of the economic efficiency of storage technology for electricity from coal power plants in large-scale chemical batteries}, URL={http://journals.pan.pl/Content/117206/PDF-MASTER/05-PE-Krawczyk-i-in.pdf}, keywords={electricity production, energy storage for grid application, lithium-ion battery, evaluation of economic efficiency}, }