Customers in the Ten Towns area will see a 8.98% increase and 12.5% for Greater Belfast.
Workers should weigh no more than 19.5st fully clothed so that they can be winched to safety in an emergency.
The scheme aims to reduce energy costs at Fieldhead Hospital in Wakefield.
A household using a typical amount of gas and electricity will pay £60 a year more, regulator Ofgem says.
The regulator Ofgem says the price cap will increase by 4% in October for millions of households.
The government is under pressure to support billpayers when domestic energy prices predicted to rise further.
The company says the move will not affect workers on its North Sea operations.
Developers say they will look for investors to fund the major project.
Council leader Sean Matthews describes the decision as an attack on Lincolnshire's countryside.
