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#6127

Altoona Works BP4

🇺🇸 United States ·built by Altoona Works· class of 1 American battery-electric locomotive

Altoona Works BP4, photo 1 of 1
1/1 Mark Levisay from Ruckersville, VA, USA· CC BY 2.0

what is it?

The Altoona Works BP4 is a 1,500 hp (1,120 kW) B-B battery-electric locomotive rebuilt by the Altoona Works of the Norfolk Southern Railway. It was created in 2007 by replacing the diesel prime mover of an EMD GP38 (Norfolk Southern #2911, formerly Conrail #7732) with 1,080 12-volt lead-acid batteries and associated control equipment. The converted locomotive was redesignated Norfolk Southern #999.

base stats

  • power 1.1 MWpower output

Bars compare against all trains: 600 km/h (maglev), 1,700 seats; power, weight and number built on a log scale up to 20 MW, 1,000 t and 20,000 built.

fun facts

  • 1.1 MW is about 13 family cars (~85 kW each) flat out.

electric locomotive: Draws power from overhead wires or a third rail and pulls separate carriages.

spec sheet

built
—
number built
—
kind
Battery-electric
traction
battery
origin
🇺🇸 United States
builders
Altoona Works
top speed
—
power
1.1 MW
gauge
1,435 mm standard gauge
wheel arrangement
Bo'Bo'

From the Wikipedia infobox and Wikidata. Blank means the sources don't say.

Sources: Wikidata Q4736955, Wikipedia: Altoona Works BP4 (CC BY-SA 4.0).Updated 2026-10-25.

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