BBC News
By Conor Spackman and Claire Irwin
BBC Spotlight
image copyrightPA
Fifteen years ago, hardly any of the electricity we use in Northern Ireland came from renewable sources like wind and solar power.
Polluting fossil fuels, many of them sourced from distant lands, were our staple.
But all that has changed.
In the year to March 2020, renewable sources provided almost 47% of our power, easily hitting the Northern Ireland Executive s target of 40% by 2020.
It is a remarkable achievement, good news for the environment and our energy security.
But the scheme that did much of the heavy lifting to get us there, the Northern Ireland Renewables Obligation (NIRO), is under ongoing scrutiny.
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Green energy: NI s wind turbines generate controversy bbc.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from bbc.co.uk Daily Mail and Mail on Sunday newspapers.