The Edgartown selectmen Friday approved changes to a town agreement with the Cape and Vineyard Electric Cooperative Inc. (CVEC) to create solar arrays on town-owned parcels of land.

In Edgartown, the designated sites are Katama Farm off Mattakesset Way, land on Pennywise Path and Nunnepog, a town well off Edgewood Drive. The town is leasing the land to CVEC at no cost. The town’s initial agreement was signed in June 2011. The contract is for 20 years, with an optional five-year extension. When the contract was first signed, total savings over the 20 years were estimated to be at least $8.1 million.

At the selectmen’s meeting Monday, town counsel Ronald H. Rappaport said he had concerns about the changes to the agreement and was frustrated that the town was not consulted about the changes.

“I think it’s very poor behavior on their part and it’s very frustrating,” Mr. Rappaport said. He expressed concerns about specific amendments, including a stipulation that the town will not interfere or allow third parties to interfere with the sun in the selected areas.

“I never like the town to be responsible on things that we can’t control,” he said.

With Monday the deadline for signing the amended agreement, selectmen met Friday morning with a different tone. According to a memo from Kim Kirk, who works in Mr. Rappaport’s office, most of the proposed changes “are all lender driven changes seeking to enforce the town’s successful participation in the building and operation of the system.”

“I think my questions have been answered,” selectman Margaret Serpa said. The board approved the amendments 2-0. Selectman Michael Donaroma was not at the meeting.

“This is going to benefit to the town if it all comes together,” selectman Arthur Smadbeck said.

Mr. Rappaport also announced that the sale of the Warren House closed on Thursday. The circa-1790 North Water Street mansion, purchased by the town in 2004 for $3.5 million and sold this year for $2.5 million, now has private owners.