Storage sizing for embedding of local gas production in a micro gas grid

摘要

In this paper we study the optimal control of a micro grid of biogas producers. The paper considers the possibility to have a local storage device for each producer, who partly consumes his own production, i.e. prosumer. In addition, connected prosumers can sell stored gas to create revenue from it. An optimization model is employed to derive the size of storage device and to provide a pricing mechanism in an effort to value the stored gas. Taking into account physical grid constraints, the model is constructed in a centralized scheme of model predictive control. Case studies show that there is a relation between the demand and price profiles in terms of peaks and lows. The price profiles generally follow each other. The case studies are employed as well to to study the impacts of model parameters on deriving the storage size.This work was supported by Energy Delta Gas Research (EDGaR) under the project of innovative smart grid solution for the new gas value chain [2],. The authors gratefully acknowledge Lukas Grond for his contribution in providing the data and G.K.H. Larsen for useful discussions.