The Artificial Island transmission line project could cost Delaware residents $13 extra per month, more than triple earlier estimates, according to Delaware's Public Advocate.
"This is some serious stuff," Delaware Public Advocate David Bonar said. "It has the potential to affect Delaware's economy."
Members of the Delaware Electrical Cooperative – the state's second-largest utility – could see even greater increases, said Bill Andrew, the nonprofit's chief executive officer.
Andrew estimates as much as $27.17 could be added to cooperative customers' monthly electricity bill. That number, he said, is based on how the projected $2.5 million annual cost of the project allocated to the cooperative will be spread across its roughly 92,000 customers.