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Fairmount Line Battery-Electric Multiple Units
Fairmount Line battery-electric multiple units - Stadler US Inc as manufacturer, Rock Rail Holdings Limited as financier, Keolis as lessee and delivery partner
Every fact on this page is free. Exact values, dates, award detail and the procurement route open in the United States edition — one edition is free with one email. Open your free edition · Open this record in the Atlas
- Buyer
- Massachusetts Bay Transportation Authority
- Where
- Massachusetts · Boston
- Segments
- Rolling stock, Electrification
- Technology areas
- Rolling-stock hardware, Predictive maintenance
- Status
- Awarded — Manufacturer and financier selection presented to the board in May 2026 and the lease and support commitments authorised in June 2026, with financial close expected June or July 2026.
- Value band
- $500m–1bn
- Currency
- USD
- Key dates (month)
- Rfi issued August 2024 · RFP manufacture January 2025 · RFP financing June 2025 · Selection to board May 2026 · Board authorisation June 2026 · Financial close expected July 2026 · Mockup March 2027 · First unit for testing 2028 · Maintenance facility RFP 2026
Status in full
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Manufacturer and financier selection presented to the board in May 2026 and the lease and support commitments authorised in June 2026, with financial close expected June or July 2026. First BEMU delivered for testing in 2028; light maintenance facility delivered 2028; mockup Q1 2027.
Next step
Recorded award: MBTA — Fairmount Line battery-electric multiple units: 7 four-car trainsets with options for up to 96 additional cars
Withheld in the free surface
- Full scope
- Exact value
- How the figure was arrived at
- Key dates (9)
- Published bidders
Full detail withheld: 5 fields. In the United States edition · See a fully open example
3 sources · all primary
- ● Massachusetts Bay Transportation Authority (Board of Directors) · Fairmount Line Zero Emissions Project - manufacturer and financier selection, 28 May 2026 (published 2026-05-28 · checked 2026-09-13)
- ● Massachusetts Bay Transportation Authority (Board of Directors) · Fairmount Line Zero Emissions Project - contract framework and board action, 11 June 2026 (published 2026-06-11 · checked 2026-09-13)
- ● Massachusetts Bay Transportation Authority · FY27-31 Capital Investment Plan (CIP), Final - July 2026 (128-page book and project list) (published 2026-07 · checked 2026-09-13)
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Compiled by Watchtower to editorial standards the Managing Partner sets and enforces. Public record only — every datum carries its source.