BUY New & Used Reliable Commercial generators 150 kW GENERATORS FOR SALE

150 kW Generators Capable of Powering Production Equipment, Plants, and Large Facilities

A 150 kW generator can provide reliable backup power for a wide range of commercial and industrial applications, including hospitals, data centers, manufacturing facilities, offices, and other businesses with substantial electrical demands. Depending on the facility and load requirements, a 150 kW standby generator can support large electrical loads such as HVAC systems, lighting, machinery, pumps, and sensitive electronics during a power outage. Because equipment can require additional surge capacity during startup, proper load analysis is essential for selecting the right generator and maintaining smooth operation.

Where Critical-Circuit Backup Becomes Facility-Wide Backup

150 kW is where many facilities cross from “critical circuits only” backup into genuine facility-wide standby coverage. It’s a frequent sizing point for mid-size medical buildings, multi-story commercial properties, and manufacturing sites where a power interruption doesn’t just idle one system — it affects the whole operation. If your facility needs enough capacity to keep the majority of the building running through an outage rather than just life-safety circuits, 150 kW is often the size that conversation lands on.

Detailed Power Requirement Review for 150 kW

Load analysis at 150 kW starts with what must stay running: HVAC, pumps, machinery and sensitive electronics. Rank those loads, note which start under load, and total the ones that must run together, leaving margin for surge and growth. A qualified engineer can review the result against the building’s electrical system, and our power calculator gives you something concrete to bring to that review. For output amperage, our amperage chart lists a 150 kW generator (3 phase, 80% power factor, 187 kVA) at 520 A at 208V and 225 A at 480V.

Tank Hours and Gas Flow on 150 kW Sets

At 150 kW, tank size and gas line capacity both have to be planned alongside the generator itself.

• Diesel: Our diesel fuel consumption chart lists a 150 kW generator at 3.6, 5.9, 8.4, and 10.9 gal/hr from 1/4 to full load, as estimates only. Generac’s SD150, a 6.7 L set rated 150 kW standby and 135 kW prime, lists 3.3, 6.2, 8.8, and 11.2 gal/hr at standby. Its tank options run from 134 to 1,325 gallons, which gives 11 to 118 hours at standby rated load.
• Natural gas: That chart leaves gas units out. Generac’s SG150 uses a 14.2 L engine and lists 1,380 scfh at half load and 2,220 scfh at full standby load, dropping to 1,260 and 2,040 scfh at its 135 kW prime rating. The required supply pressure is 7 to 11 inches of water column.

Both fuels have their own category here: industrial diesel generators and industrial natural gas generators.

Brakes, Axles, and Weight of a Towable 150 kW Unit

Permanent installations at this size are usually pad-mounted, but a towable 150 kW class unit moves a lot of weight. Generac’s MDG150DF4 is rated 144 kW standby and 120 kW prime on three-phase power, with a 358-gallon tank, a listed 39-hour runtime at full load, and a John Deere 6068HFG05 engine certified to Tier 4 Final. On its trailer it weighs 10,170 lb dry and 12,990 lb with fluids, rides on two 8,000 lb axles with surge brakes, and measures 208 x 86 x 104 inches. It lists a 600 A main breaker and 75 dB(A) at 23 ft at prime power. Those weights set the tow vehicle and hitch requirements, so confirm both, along with local towing rules, for the unit you choose. Towable options are listed under our trailer-mounted generators.

From Engine Make to Delivery: Where 150 kW Prices Come From

A 150 kW price shifts with each of these factors.

• New or used: Compare new generators with used generators: buying new or used leads to different pricing, and the choice is worth settling early.
• Operating hours and age: A used 150 kW set with fewer hours on the engine and a recent build date commands more.
• Engine size and make: Generac’s gas SG150 uses a 14.2 L engine while its diesel SD150 uses 6.7 L, and engine size and manufacturer change cost.
• Rating: Both Generac sets list 150 kW standby and 135 kW prime, while the MDG150DF4 towable lists 144 kW standby and 120 kW prime.
• Tank size: Diesel tank options on the SD150 span 134 to 1,325 gallons.
• Emissions equipment: The MDG150DF4 is Tier 4 Final with SCR and DOC aftertreatment.
• Configuration and delivery: Enclosure type, trailer or skid mounting, and the distance to your site are part of the final cost.

A 150 kW price depends on the unit, so contact us with the one you are considering.

Outage Backup and Automatic Transfer at 150 kW

Behind a 150 kW set sits a transfer switch that senses the outage, starts the engine and moves the load across, which is why hospitals, data centers and other sites with no tolerance for a gap pair a generator at this size with one.

Critical Circuits Only or Facility-Wide: 150 kW

Backing only key circuits and essential equipment rather than the whole building is a job for our 125 kW generator at lower cost. A multi-story building, heavier industrial equipment or planned growth is where our 175 kW generator adds margin.

Certified Condition on 150 kW Generators

Turnkey Industries has led with quality for ten years. Every 150 kW generator goes through a 22-point review before sale, and the 30-day IronClad warranty covers it from the start. We are here for service as well; our service and maintenance team is a call away once the generator is running. Browse the inventory or get in touch.

What to Look for When Buying a 150 kW Generator

When evaluating a 150 kW generator for sale, consider more than the rated power output. Engine specifications, operating hours, fuel type, voltage configuration, enclosure, dimensions, and available accessories can all affect whether a unit is suitable for your facility. For used equipment, maintenance history and overall condition are also important considerations. Turnkey Industries can help you compare available 150 kW generator models and determine which configuration best matches your power requirements and intended use.

Browse Turnkey Industries’ Variety of Industrial Generators

Our inventory of used diesel generators covers larger industrial sizes alongside the 150 kW. The 175 kW generator suits mid-sized commercial applications, and the 200 kW generator adds capacity for larger commercial projects or small-scale industrial needs. Both pass our 22-point review. Explore our complete inventory online or contact us today for more information.