The developers behind the controversial Piedmont powerline project filed a second federal lawsuit to get access to about 200 additional properties across Baltimore, Frederick, and Carroll counties.

The Piedmont Reliability Project would build 70 miles of 500,000-volt overhead transmission lines through the three Maryland counties. 

According to New Jersey-based developer PSEG Renewable Transmission, the project would help address power grid congestion and a potential energy deficit in Maryland.

Requesting access to more Maryland properties 

In June, PSEG was given permission to survey 91 properties that could be impacted by the project. 

The approval came despite opposition from property owners who raised concerns about environmental impacts and changes to their land. 

On Tuesday, PSEG filed an additional request to access nearly 200 Maryland properties to perform "non-invasive field surveys," according to a lawsuit. 

Maryland's need for new powerlines 

In their lawsuit, PSEG cited Maryland's need for more transmission lines as the reason for its push to survey properties. 

PJM Interconnection, the grid operator for several northeast states, expects that the regional transmission system could see blackouts and "voltage collapse conditions" unless the project is completed by June 2027, according to the lawsuit. 

PJM and PSEG entered into an agreement that allows the developer "to take reasonable efforts to ensure that it obtains all necessary authorizations and permits to construct and place the [transmission lines] in service by June 1, 2027," the lawsuit states. 

The company said it has to begin construction by the first quarter of 2026 in order to complete the project on time. The property surveys must be completed before construction can begin. 

Opposition to powerline construction project 

Maryland Delegate Nino Mangione is focused on stopping Maryland's Piedmont Reliability Project.

"We're going to fight this thing until the very end," Mangione said. 

Mangione spoke out against the second lawsuit at a Town Hall meeting on Wednesday at Hereford High School, 

He called the lawsuit a "terrible decision." 

"iI emphasize that the federal judge, in this decision, is to allow this out-of-state company to invade the private property of land owners without having the permits from the Maryland Public Service Commission," Mangione said. 

Maryland residents voiced concerns about the project.

"There's nothing else other than frustration could really voice about it right now because it seems like some people care, but there are a lot of people who don't care, and that's frustrating," said said Maryland resident Joshua Morningstar.

Morningstar says his property is not listed to be surveyed, but he feels it is coming. 

"I'm in the path, they're going to want it, they'll name it one way or another," Morningstar said.

Residents say this new lawsuit is an assault on property rights. 

"I think they're trying to do whatever they can to make money, and I don't think it's really good for the Maryland environment," said Maryland resident Karen Danmyer.

The powerline project has also faced opposition from community leaders, including Baltimore County Executive Kathy Klausmeier. She indicated in February that she wanted to intervene in the application process. 

At the time, Klausmeier said she would "continue to work with state partners to share serious concerns about this project's impacts and work to protect our county's agricultural legacy and land preservation interests."

Maryland Gov. Wes Moore also spoke out against the project in November 2024, saying he had "grave concerns" about the planning process and the lack of communication about the impacts of the project. He planned to meet with company leaders to discuss his concerns.