||The work is focused on the Czech electricity market, during the first year on the renewable sources of energy, namely their Merit Order Effect (MOE) and how it affects the electricity spot price. Preferable treatment of the renewables allows them to enter the grid "first", therefore shifting the supply curve right, as demand is almost inelastic, price drops. Renewable sources differ in this effect and in subsidies, most are intermittent, photovoltaics support the peak demand contrary to wind power plants that follow only weather with no pattern. The goal is to split the price into two parts - without renewable sources and the MOE to understand the financial effect and compare it to the support they receive. Later on, we would focus more on the prediction of electricity (related) costs for the upcoming years.