Scientists will study the possibility of producing geothermal energy from magma for the first time, in a $100 million project in Iceland, which if successful could produce up to 10 times more energy than from a conventional well.

The project is being coordinated by Iceland’s Geothermal Research Group (GEORG) and the British Geological Survey, with the participation of 38 institutes and companies from 11 countries including the United States, Canada and Russia.

Producing geothermal energy from magma would enable Iceland to export more energy and could also revive a plan to build a power cable from Iceland to Britain to provide power to British homes, in what would be the world’s longest power interconnector.

Iceland, a volcanic island that produces all its electricity from geothermal energy and hydropower, agreed with Britain last year to study building the 1,000 km long IceLink cable, which could power 1.6 million British homes.

Those plans were delayed due to Britain’s vote to leave the European Union and concern in Iceland that exports would increase power prices at home and reduce the island’s attractiveness to energy-intensive industries such as data centers.

The first phase of the project is planned to start by 2020 and will cost $30 million, the British Geological Survey said.