SELECTED ASPECTS OF FUNCTIONING OF THE DAY-AHEAD AND INTRA-DAY MARKETS IN THE ELECTRICITY MARKET

Abstract

The paper presents a statistical analysis of prices and volumes of electricity quoted on the Day-Ahead Market (DAM) and the Intra-Day Market (IDM) of the Polish Power Exchange (POLPX). The analysis was carried out for weighted average hourly prices and volumes of electricity for two selected periods. Data available from the Polish Power Exchange was used. In the face of the energy crisis and the uncertainty caused by war and the limited supply of raw materials used to produce electricity, knowledge of the operation of the DAM and IDM is of significant economic, strategic importance, which is related to the security of electricity supply and its prices. The exchange market in Poland is supervised by the Energy Regulatory Office and the Financial Supervision Commission. During the energy crisis, the role of energy exchanges is increasing, not only in Poland, and knowledge of the functioning of the energy market is also one of the elements of strategic management in the energy sector. The Statistica v.13.3 software was used to analyse the data.