“…In [4], a modified particle swarm optimisation method of DG planning for PV, WT and BS in microgrid is studied in both scenarios including stand‐alone and grid‐connected microgrids. In [5], PV and diesel are considered as the main sources in the microgrid, while batteries are used as storage and backup system. The researches on DG planning in stand‐alone microgrid seldom take into account the randomness of DG and environment cost of DG simultaneously.…”