Overview#
The Blue Star MD1000-01 is a 1,000-kilowatt Tier 2 diesel standby generator powered by a Mitsubishi S12H-Y2PTAW-1 engine — a 37.1-liter, 12-cylinder V-configuration turbocharged and water/air-intercooled diesel producing 1,528 HP at 1800 RPM. It sits at the midpoint of the Blue Star Mitsubishi V12 lineup, between the 800 kWe MD800-01 and the larger-displacement MD1250-01.
Blue Star Power Systems (North Mankato, Minnesota; DEUTZ AG subsidiary since 2024) assembles the MD1000-01 on a structural steel base — the same 210×96 in footprint as the MD800-01 — with a Stamford S6L1D-E alternator and DSE DCP7310 controller. Like all MD models, it is three-phase only, available from 208V through 4160V.
The Mitsubishi S12H platform#
The S12H occupies the middle ground in Mitsubishi's industrial V12 family. It shares the 5.91 in bore with the S12A2 (MD800-01) but uses a 6.89 in stroke versus 6.30 in, yielding 37.1 liters of displacement and 1,528 HP standby — 321 HP more than the S12A2 in roughly the same footprint. The intercooler uses a separate water circuit (distinct from the jacket water circuit), requiring attention to two fluid systems at service intervals. Jacket water pump flow is 383 GPM, with an additional 132 GPM through the intercooler circuit.
When to spec the MD1000-01#
- 800–1,000 kW continuous emergency loads on three-phase power
- Sites requiring medium-voltage (4160V) output at 1 MW without a step-up transformer
- Large industrial facilities, hospital campuses, and mission-critical data center backup systems
- Projects where the MD800-01 is insufficient but the MD1250-01 exceeds requirements
Our service experience#
At 22,675 lbs OPU, the MD1000-01 is a serious structural engineering concern — the equipment pad must be designed for this weight class and the radiator airflow of 42,191 CFM. At full load fuel consumption of 72.4 gph, a 500-gallon tank provides roughly 6.9 hours of runtime. Plan fuel delivery logistics for extended outage scenarios before commissioning.
