Description
Two factory-new Mainspring MSE3 Linear Generators, never installed, never commissioned, and zero run hours. Purchased new and delivered from the factory in March 2025. Both units remain in commercial storage in Texas and are available immediately.
Each unit is rated 230 kW net AC and is capable of 400/480 V, 3-phase, 50/60 Hz operation. Mainspring’s linear-generator technology is designed for prime onsite power with 46% net AC electrical efficiency, near-zero NOx emissions, no water consumption, and no conventional engine oil system.
Fuel-flexible operation supports natural gas, biogas, hydrogen and propane blends at 5–20 psig. Units are capable of grid-parallel operation, islanding, black start, and 0–100% load following.
Containerized package with ISO corners. Approximate dimensions per unit: 20.5' L × 8.5' W × 9.5' H. Approximate unit weight: 41,900 lb, plus accessories (around 44,000lbs).
Quantity available: 2
Location: Texas
Condition: New / Zero Hours
Inspection available by appointment
Offered subject to prior sale
The photo is not the actual units, our units are brand new, unwrapped and stored indoors. We are verifying warranty transfer details now.Specifications
Year2025
Manufacturer ModelMainspring
ManufacturerMAINSPRING
ModelMSE3
ConditionNew
Hours0
Hours MeterAccurate / Verified
Prime Power Rating230 kW
Continuous Power Rating230 kW
PhaseThree
Variable VoltageYes
Max Voltage480 V
Hertz60
RatingPrime
EnclosedYes
Sound AttenuationYes
Auto Start/StopYes
Digital PanelYes
TelematicsYes
Fuel TypeNatural Gas
Engine ManufacturerMainspring Energy
Engine ModelMSE3 Linear Generator
Shipping Length20 ft 6 in
Shipping Width8 ft 6 in
Shipping Height9 ft 6 in
Shipping Weight44,000 lb
Year2025|
Manufacturer ModelMainspring|
ManufacturerMAINSPRING|
ModelMSE3|
ConditionNew|
Hours0|
Hours MeterAccurate / Verified|
Prime Power Rating230 kW|
Continuous Power Rating230 kW|
PhaseThree|
Variable VoltageYes|
Max Voltage480 V|
Hertz60|
RatingPrime|
EnclosedYes|
Sound AttenuationYes|
Auto Start/StopYes|
Digital PanelYes|
TelematicsYes|
Fuel TypeNatural Gas|
Engine ManufacturerMainspring Energy|
Engine ModelMSE3 Linear Generator|
Shipping Length20 ft 6 in|
Shipping Width8 ft 6 in|
Shipping Height9 ft 6 in|
Shipping Weight44,000 lb|
