Abstract. The integration of a large amount of renewable energy into the distribution network brings the severe consumptive problem. Compared to the traditional storage methods, in this paper, we propose a new solution which is to convert electricity into hydrogen by the electrolysis cell. What's more, by methanation we convert hydrogen into methane to provide fuel for the micro-turbine. Thus on the one hand the loss of on-grid renewable energy can be decreased, on the other hand the fuel cost required for the micro-turbine can be curtailed. The main contribution relies on the efficiency model of the electrolysis cell, and the research with the consideration of the network operation constraints in the distribution level is meaningful.