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Maryland Piedmont Reliability Project (MPRP)

Sector: Power Transmission • Location: Mount Airy, Maryland, United States

Source: UnHerd

Project
Under Review

The Maryland Piedmont Reliability Project (MPRP) is a proposed high-voltage overhead transmission line spanning roughly 70 miles through mostly rural Maryland, impacting private landowners in Frederick, Carroll, and Baltimore counties. The project aims to maintain grid reliability due to rising electricity demand driven largely by data centres and the retirement of older power plants. The project

Status
Prospective
Sector
Power Transmission, Power Generation (CCGT)
Location
Mount Airy, Maryland, United States of America
Updated
22 Jul 2026
Source
UnHerd

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Project Information

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The project “Maryland Piedmont Reliability Project (MPRP)” is an infrastructure initiative in the Power Transmission sector, located in Mount Airy, Maryland, United States. Taiyo aggregates data on it from UnHerd.

Participants

Not available for this record.

Status

Original status

under review

Taiyo status

Prospective

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

The Maryland Piedmont Reliability Project (MPRP) is a proposed high-voltage overhead transmission line spanning roughly 70 miles through mostly rural Maryland, impacting private landowners in Frederick, Carroll, and Baltimore counties. The project aims to maintain grid reliability due to rising electricity demand driven largely by data centres and the retirement of older power plants. The project involves expanding transmission capacity and strengthening the grid, with a cost of $424 million. The project is currently undergoing regulatory review, including a Certificate of Public Convenience and Necessity (CPCN) application process, public hearings, and legal challenges related to land access for surveys.

Original sector

Energy

Budget

Location

Country

United States of America (USA)

State

Maryland

City

Mount Airy

Source

Source

UnHerd

URL

More Details

Record type

Project

Sector

Power Transmission, Power Generation (CCGT)

Article published date

2025-11-07

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