The Cook Islands are a group of fifteen islands, twelve of which are inhabited. Most of the population (15.000 inhabitants) resides on the main island, Rarotonga. The rest (2.500 inhabitants) is distributed over the 10 small islands and atolls that make up the Northern Group.
With the joint commitment between the New Zealand government and the Cooks, a fund of 2013 million was created in 12,8 in order to increase the share of renewables in the energy mix, lower the electricity tariff and promote tourism. At present, Il 95% of electricity consumption, it comes from a source renewable. They have been installed eight hybrid mini-grids, powered by photovoltaic and diesel as a reserve, which they distribute 1,1 GWh / year of clean energy, equal to a saving of 436.000 liters / year of conventional fuel and the non-emission of 1170 tCO2 / year into the atmosphere.