Like any of Scotland's 134 whisky producers, Islay's Bruichladdich distillery relies on fuel oil, brought in on diesel-powered ferries, to fire the boilers. Islay's 9 distilleries alone burn 15m litres of oil every year, and this idyllic spot may have the highest per capita CO2 emissions of any community in Scotland. However, Bruichladdich has set itself the challenge of ensuring that its distillation process will be net zero by 2025, with production of malted barley to follow. The company aims to pioneer the use of an innovative type of green hydrogen production using green electricity and water electrolysis, unlike the conventional method, which uses natural gas and creates CO2 in the process. It is currently dependent on a green tariff, but plans to use renewables installed around the island over the next few years, and hopes that the technique can help power Islay's other distilleries, businesses and homes as well.