Plans for a £15-£20bn nuclear energy plant in Wales have been scrapped.
Work on the Wylfa Newydd venture on Anglesey was suspended in January final 12 months due to rising prices after Hitachi didn’t reach a funding settlement with the UK authorities.
Isle of Anglesey council mentioned the corporate had now confirmed in writing it’s withdrawing from the venture.
Council chief Llinos Medi mentioned: “This is very disappointing, particularly at such a difficult time economically.”
Developer Horizon Nuclear, which is owned by Hitachi, mentioned it will not remark.
The UK authorities additionally declined to remark.
However Anglesey council mentioned it had obtained a letter from the Tokyo-based mother or father firm confirming its choice.
Mrs Medi has requested to satisfy each the Welsh and UK governments to debate the way forward for the location.
A two-reactor plant at Wylfa was the largest vitality venture ever proposed in Wales.
It was earmarked as having the potential to energy as much as 5 million houses, however the venture was placed on maintain because the upfront prices rose.
With 9,000 employees prepared to begin the development part, the choice in January 2019 was described as “a tremendous blow” to the Welsh economic system by enterprise leaders.
The firm mentioned in June it hoped to safe additional funding from the UK authorities to renew the venture however has now thrown within the towel.
Analysis by BBC Wales enterprise correspondent Brian Meechan
As considered one of Wales’ greatest proposed development tasks, Wylfa Newydd has confronted turbulent occasions.
The firm behind it, Hitachi, has at all times been involved in regards to the prices of constructing the brand new nuclear energy plant.
The UK authorities went a way in providing monetary assist to the venture but it surely wasn’t sufficient to fulfill Hitachi’s considerations over the monetary dangers.
The UK authorities additionally held a session on plans that might see vitality clients pay upfront for the prices of development.
The trade has been ready for months for an final result to that.
When the UK authorities mentioned nuclear was a part of its push for inexperienced vitality, the trade thought it was a constructive signal for Wylfa Newydd.
But critics query how inexperienced nuclear vitality actually is, to not point out how secure it’s.
Wales has been known as the “land of artists’ impressions” with many huge schemes which might be talked about and by no means occur.
Supporters of Wylfa Newydd will probably be involved it can turn into one other of these, whereas its critics could be glad to see the again of the plans.
The choice may have “a big effect on the economy”, in line with Edward Jones, lecturer in economics at Bangor University.
“We are currently feeling the effect of Covid-19 and Brexit is around the corner, and we will feel the negative impact of that on the economy,” he mentioned.
“A lot of people were investing in learning new skills with the thought of getting jobs at Wylfa.
“We know companies are investing in new manufacturing strategies to be a part of the availability chain of the nuclear energy plant.
“The challenge now is to find other projects that can make use of these skills.”
Mr Jones mentioned different vitality tasks on the island, akin to the Morlais tidal vitality scheme, might make use of the funding already made.