The Martha’s Vineyard Commission cleared the way for a number of major projects last week, allowing Vineyard Youth Tennis to keep its bubble up year-round and approving written decisions for Vineyard Wind’s undersea connector cables as well as a campus demolition and expansion for The Yard.

Last year, the commission approved a change in the charter for Vineyard Youth Tennis that allowed the children-only tennis facility to offer services for adults. The decision came after the nonprofit lost its longtime benefactor and needed a path toward financial viability. The change included a condition that the facility would remove the indoor bubble in the summer months.

The bubble was replaced this year after it was destroyed in a storm two winters ago. On Thursday, a spokesman for the tennis program, now called Vineyard Family Tennis, sought permission to keep the bubble in place year-round.

Chris Scott said the request arose because engineers predict the new bubble will last almost 10 years longer if it is not removed every year. He also said it will allow the facility to offer summer camps and instruction during poor weather.

“The bubble was funded by a very generous grant from MV Youth,” Mr. Scott said. “It’s really a huge upgrade from the previous bubble. If we leave it in place, it ought to last 20 to 25 years.”

Commissioners were in favor of the plan, noting that the new bubble was less visually obtrusive than expected.

“It was believed to be very visible, and now you can’t really notice it,” commissioner Linda Sibley said. “You can barely see it.”

Commissioners unanimously approved the change, which now goes before the Oak Bluffs zoning board.

“It’s one of the most successful programs on the Island,” said Adam Turner, executive director of the commission. “You’ve done a great job.”

The commission also approved the written decision for the installation of two, 220-kilowatt undersea cables 1.2 miles off the shore of Edgartown. The cables will connect one of the largest proposed offshore wind turbine projects in the U.S. to Cape Cod. The commission received an unprecedented pile of correspondence on the project, with proponents lauding its commitment to green energy and opponents concerned about the effects of infrasound from the turbines and ecological impacts from the cables on the fishing industry.

After three crowded public hearings earlier this spring, the commission approved the project two weeks ago. Representatives from Vineyard Wind, the New Bedford based energy cooperative spearheading the project, attended the commission meeting on Thursday for the written decision.

Commissioner Trip Barnes asked whether Vineyard Wind was required by the commission to post a bond to cover the expenses of removing the cable in the case of a weather-related or technological disaster.

“If something bad happens, is there anybody that will clean up the mess?” Mr. Barnes asked.

Commission chairman Doug Sederholm said Vineyard Wind has the sole responsibility of removing the cable from the seafloor. Nate Mayo, a representative from the company, added that the Bureau of Ocean Energy Management requires a federal bond posted prior to construction. The commission then approved the written decision 11-1, with Mr. Barnes voicing the lone “no” vote and commissioner Christina Brown abstaining.

A written decision allowing a campus expansion plan for The Yard was also approved.

Commissioners also approved minor changes to the Oak Bluffs coastal district of critical planning concern, amending the definition of shore zone. Although the changes were approved by the town in 1983, the town had not sought conformance with the commission until now.

“It’s a cleanup job,” Mr. Sederholm said.

Jo-Ann Taylor, commission DCPC coordinator, said the new guidelines would effectively increase the Oak Bluffs shore zone so that it conforms with the wetlands bylaw.

The commission also granted Nova Vida Alliance Church a yearlong extension on a proposal to renovate the Oak Bluffs building. The project has previously been extended numerous times. A reverend for the church said permitting issues with the town of Oak Bluffs were the cause of the delays. The commission promised to send a letter to the town zoning board of appeals confirming that it had approved the project with a certificate of compliance.

“We wish you luck with the building officials,” Mr. Sederholm said.