The energy generated from our oceans could be doubled using new methods for predicting wave power. Research led by the University of Exeter, published (27 June) in the journal Renewable Energy, could pave the way for significant advancements in marine renewable energy, making it a more viable source of power. The study was carried out by a team of mathematicians and engineers from the University of Exeter and Tel Aviv University. They devised a means of accurately predicting the power of the next wave in order to make the technology far more efficient, extracting twice as much energy as is currently possible. Marine energy is believed to have the potential to provide the UK with electricity twice over. However, technologies to extract and convert energy from the sea are relatively immature, compared with solar or wind, and are not yet commercially competitive without subsidy. Very substantial progress has been made by the leading device developers, but key challenges remain: preventing devices being damaged by the hostile marine environment; and improving the efficiency of energy capture from the waves. This research addresses both problems by enabling control over the devices that extract wave energy. The key to this is to enable devices to accurately predict the power of the next wave and respond by extracting the maximum energy.