DIW Econ examined the economic efficiency of investments related to alternative power plant options at the Slavyanskaya plant site for Vattenfall Europe PowerConsult GmbH. For each alternative we made a detailed assessment of the operating costs and the levelized costs of electricity generation including potential costs for C02 emissions as well as a cash flow analysis to evaluate the economic efficiency. We assessed three main options (two times coal and one time combined cycle power generation), each time with a number of specifications. Furthermore, we did an analysis of the current and prospective situation on the fuel market and the electricity market.