The communication detention between distributed energy resources (DERs) and distribution network brings about adverse effects on power quality

protected relaying and islanding

and may further affect the economy and safety of the whole power grid. By considering technicality

economy

adaptability

expansibility and DER supportability

a grid connected monitoring solution is designed and an adaptability evaluation system for distributed network communications including DER is proposed.According to the DER grid-connected demand

a fuzzy consistency analytic hierarchy process (AHP) evaluation method is used to assess the aptness and four communications are chosen as an example. The method combines the subjective and objective demands in a logical way and has a certain guiding significance in future grid connected network programming.