The article analyzes the terms of the Grid Connection Agreement established by the Grid Connection Regulation with regard to the provisions on liability of the parties. Thus, according to the Grid Connection Regulation, the applicant's right to unilaterally rescind the contract, the penalty, the obligation to reimburse legal expenses and the right of the network organization to apply to the court for the contract termination in cases provided for in the Regulation relate to the parties liability measures. The provisions stipulated by the Regulation do not generally apply to civil liability, which leads to confusion of legal concepts. The relations of the parties to the Grid Connection Agreement are subject to liability measures established by the general rules, namely, penalty and damages.