Plans for the Earystane and Scard windfarm cannot progress until environmental surveys have been completed.
In Tynwald this week Manx Utilities Authority chair John Wannenburgh explained how survey work is due to be completed in October.
No planning application can be submitted until the Environmental Impact Assessment is finished, he told the court.
Mr Wannenburgh said even though plans were originally due for submission in January, the current delay is necessary:
Island part of union data breach investigation
Cracked pipe closes NSC pool
Island updates arms export rules
Onchan Raceway to stay open with new lease
Jobcentre can't stop ads being doubled up
Deposits are biggest barrier to getting on property ladder
Vegan beauty salon up for sale
Committee says more housing needed for young people