One of Northern Ireland's most senior retired judges will chair a public inquiry into the Renewable Heat Incentive (RHI).
Lord Justice of Appeal Sir Patrick Coghlin will be unflinching in his pursuit of the truth and scrupulous in his analysis of the evidence, Stormont's Finance Minister said.
He begins his work on February 1.
A judge yesterday issued an interim injunction preventing the publication of hundreds of names of RHI claimants.
Finance Minister Mairtin O Muilleoir said: "By getting to the truth of the RHI scandal, this inquiry team, led by the distinguished Sir Patrick Coghlin, will I believe address those wider issues and therefore go some way to rebuilding the shattered public confidence in the institutions."
Sir Patrick's legal career stretches back to the 1970s. He retired in 2015.
RHI is predicted to cost taxpayers up to £490m over the next 20 years.
It precipitated the collapse of Stormont power-sharing.
Sir Patrick will be assisted by two panel members and independent assessors as needed.
There is no intention to publish an interim report.
The probe will investigate:
Mr O Muilleoir added: "Rest assured, every stone will be turned and there will be no dark corners where the light won't be shone."
The scheme was designed to encourage businesses to use green energy instead of fossil fuels, but ended up paying out around £1.60 for every £1 spent on wood to fuel biomass boilers.
There have been allegations of empty sheds being heated in the 'cash for ash' scandal.
The DUP has welcomed the public inquiry, and the Assembly recently voted in favour of one.
A DUP special adviser who formerly worked with party leader Mrs Foster has quit amid allegations of exerting influence around the RHI scheme.
And another DUP adviser has stepped aside from work on measures to save taxpayers' money.
Late on Friday senior DUP MLA Jim Wells revealed that four family members run boilers under the controversial scheme.
A series of other politicians have publicised family links, and one former Assembly Member's wife uses a wood pellet boiler to power a horse solarium.
There is no suggestion of wrongdoing by any recipients.
Mr O Muilleoir added: "I am aware that the RHI issue goes beyond financial matters to questions of governance and probity."
An interim injunction granted by a judge in Belfast stops the Department for the Economy from revealing the names of Renewable Heat Association (RHANI) of Northern Ireland members today.
The RHANI represents hundreds of owners of boilers in the non-domestic RHI scheme.
Mr O Muilleoir said he hoped the hearings would be televised to boost public confidence and said it would be appropriate for it to be received in six months.
An expert in renewable energy and an expert in government accounts are expected to be appointed to help Sir Patrick.
The report must be delivered to the Finance Minister.
Sir Patrick was educated at Queen's University in Belfast and Cambridge University. He became Lord Justice of Appeal in 2008.
The minister said there were no items of information which he should not be able to access.
The energy scheme scandal triggered the collapse of powersharing at Stormont.
A snap election was called after Sinn Fein's Martin McGuinness quit as Deputy First Minister in protest at the DUP's handling of the affair after Mrs Foster refused to step aside during any investigation.