Feasbility of Grid-Connected Wind power for Rarotonga, Cook Islands

Abstract

The Cook Islands energy sector relies 100 % on imported fuels for transport, electricity generation and household use. In the year 2005 the world has experienced a period of price volatility for petroleum that saw petroleum prices increase from US$ 40/bbl in mid March to US$ 70bbl in September. At present wind energy is considered to be the most attractive renewable energy source for grid connected electricity supply in the Cook Islands. For the Rarotonga system, wind energy penetration up to a maximum of 30% seems to be manageable without jeopardizing system stability and security. The significant benefits of such a project include the displacement of diesel power generation and consequent fuel and other operating savings, which are quantifiable, and the diversification of energy sources for power generation in Rarotonga and increased security of supply from a reduced dependence on foreign supplies of fuel.