We deal with promissory notes and power generation concessions. In case of renewable energy sources, we also prepare the so called incentive effect. We conduct proceedings concerned with achieving of the technical conditions for connection to electricity grids. We conduct cases related to the conclusion and performance of energy sales contracts and energy distribution contracts. We deal with disputes before the Head of the Energy Regulatory Authority, Antitrust Court and common courts. We deal with the issues of trade balancing and support of the renewable energy sources.