Comparative analysis of hourly and dynamic power balancing models for validating future energy scenarios

► Significant difference in wind penetration levels on an islanded system, when comparing results of EnergyPLAN and dynamic power-system models. ► The difference between the results from the two models is reduced, when the Vehicle-to-Grid (V2G) regulation is applied. ► The V2G could improve the short-term wind power balancing, which is an attractive alternative to conventional generator reserves. ► The EnergyPLAN tool needs to be taken conservatively if used for energy system analyses of islands and “islandable” systems. ► Incorporating a grid stabilisation share in V2G model, the EnergyPLAN capability to handle intra-hour power regulation could be improved.