The energy could then be sent across the ocean via underwater cables, reaching countries such as the UK and providing a renewable power supply. If successful, energy could be sent via a 620-mile (1,000km) cable called the IceLink to power 1.6 million British homes. However, plans for the underwater pipes were delayed because of 2016's Brexit vote. That said, the technology is still in its early stages and scientists say it could be 20 years before it becomes a reality.

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