Tonga's aim of reducing the price of energy is a step closer after it received a major grant from the European Union.
The EU has signed an 8. 4 million US dollar agreement to further develop Tonga's Energy Road Map.
The signing has come during a two-day energy summit in Auckland.
The Director of Tonga's Public Enterprises, Inoke Vala, says the Kingdom still needs more donor and private sector assistance on sustainable and green energy projects.
He says energy is a priority for improving social and economic development.
"We are looking today at looking for funders for biomass project, and also we are looking for wind, and also we are looking at the technical assistance level for a study and feasibility of wave."
Inoke Vala says Tonga is optimistic it is on track to meet a commitment to be using 50 percent renewable energy by 2020.