Case Study of a Hybrid Wind and Tidal Turbines System with a Microgrid for Power Supply to a Remote Off-Grid Community in New Zealand

This paper evaluates the feasibility of using a hybrid system consisting wind and tidal turbines connected to microgrid for power supply coastal communities that are isolated from main grid. The case study is Stewart Island, where cost electricity, provided by central diesel station, higher than grid network in New Zealand. Local residents believe reducing consumption having renewable source electricity generation two island’s highest priorities. Merging energy (predictable) with (unpredictable) (back-up), through microgrid, may be way increase reliability decrease generation. Several off-grid configurations simulated HOMER WRPLOT software. Using four turbines, plus one generator back-up, best design terms lower greenhouse gas emissions, fraction, reduced net present cost.