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North America / Island & remote community

Edmondson Village Milligrid

Current status, energy mix, organizations, suppliers, equipment, controls, reported specifications, and project updates—with source-level citations.

CoverageDetailed public record
Named organizations5
System facts12
Sources reviewed6
Evidence reviewed2026-07-20

Baltimore Gas and Electric proposed the Edmonson Village public-purpose microgrid in its 2015 Maryland pilot filing. The design was a roughly 3 MW natural-gas system serving a cluster of critical commercial and public loads in Baltimore City. Maryland's Public Service Commission denied BGE's two-site proposal without prejudice in July 2016, so this was never a commissioned microgrid. Later literature's label 'milligrid' describes the proposed multi-node topology, not a built demonstration.

Research status
Proposal denied by the Maryland Public Service Commission on July 19, 2016; no construction or operation. The denial was without prejudice, but no revived Edmonson/Edmondson Village project was found through July 2026.
Historical classification
Building
Reported capacity
3,000 kW
Coordinates
39.26337, -76.61931
Evidence note: “Every company” cannot be proven from public material alone. This page lists every organization found in the recovered record and reviewed sources, preserves unknown roles, and explicitly marks undisclosed controller or equipment details.
Report missing evidenceResearch methodology

Project delivery

Who was involved in Edmondson Village Milligrid?

5 publicly identified organizations. Where a recovered source named a participant without explaining its work, the role remains explicitly unspecified.

Organization

Baltimore Gas & Electric

Publicly named participant; role not specified in the recovered record [1]

Organization

Baltimore Gas and Electric Company

Applicant and proposed owner, builder, and operator of the public-purpose microgrid [3][5]

Organization

Edmonson Village critical-service businesses and public facilities

Proposed resilience beneficiaries, including grocery, pharmacy, clinic, fuel, public-building, and emergency-shelter functions [5][3]

Organization

Maryland Public Service Commission

State regulator that reviewed and denied BGE's pilot proposal in Case No. 9416 [3]

Organization

PJM Interconnection

Potential wholesale-market venue for energy, capacity, ancillary-service, and demand-response revenues contemplated by BGE; no participation occurred because the project was not approved [3]

System evidence

Energy mix, capacity, and specifications

Values can describe different project phases, generation sources, storage systems, or other components. Source citations are attached to each figure so discrepancies remain visible.

Proposed generation
Approximately 3 MW of natural-gas generation for the Edmonson Village site [3][4]
Proposed project cost
Approximately $9.2 million for Edmonson Village [4]
Energy mix
Nearly all natural gas, with diesel described only as a fallback if gas were unavailable; the filed design included no renewable generation, CHP, or energy storage [3]
Proposed residential surcharge
$0.04/month for an average BGE residential customer in year one, increasing to $0.13/month in year two and continuing for recovery of capital, operations, fuel, and tax costs [3]
Proposed market revenue
BGE estimated about $215,000 per year per pilot from possible PJM market participation, but deliverability and value were not established [3]
Storage
None proposed [3]

Controls and hardware

Equipment and controller details

Manufacturer and model are shown only when a source names them. Generic descriptions are not converted into guessed product assignments.

01

Proposed dispatchable generation

Model not publicly disclosed

Natural-gas generator technology was specified at the project level, but the public regulatory record reviewed here does not identify a manufacturer or model because the project did not reach procurement. [3]

Technical record

Architecture, performance, and project updates

Concise technical facts, milestones, operating results, and later developments. Dated notes distinguish historical design claims from current evidence.

  • Operating concept

    BGE proposed a utility-owned system that would separate from the distribution grid during a significant or extended outage and energize a cluster of critical community services. [5][3]

  • Regulatory outcome

    The Commission denied the filing as submitted because BGE had not sufficiently established public benefit or site selection, the design relied on a single fuel and lacked diverse distributed resources, costs would be socialized while benefits were geographically concentrated, third-party competition was limited, and projected PJM value was uncertain. [3][4]

  • Name and topology correction

    The official order uses 'Edmonson Village,' while the Baltimore neighborhood is commonly written 'Edmondson Village.' A later Asian Development Bank handbook calls the proposal a 'milligrid' because the planned resources and customers sat at multiple points on BGE's grid rather than behind a single point of common coupling. [3][6]

  • Record correction

    The reviewed filing describes a community cluster around Edmonson Village, not an operating project at an 'Edmonson High School.' The authoritative regulator record also supersedes later shorthand that may imply the design was tested in 2016: it was denied before construction. [3][6]

  • Public evidence gap

    Because the project stopped at the regulatory proposal stage, there are no as-built equipment models, commissioning tests, outage results, or operating energy data. [3][4]

Provenance

6 sources

Primary owner, government, university, supplier, and engineering sources are preferred. Archived references preserve claims whose original pages moved or disappeared.

  1. [1]
    Recovered Microgrid Projects record

    Internet Archive · Archived source · captured 2021-04-20

  2. [2]
    milligrid

    microgridmedia.com · Archived source · captured 2021-04-20

  3. [3]
    Order No. 87669, Case No. 9416: BGE Microgrid Order

    Maryland Public Service Commission · Primary source

  4. [4]
  5. [5]
  6. [6]

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