What size diesel generator do I need?

Size to your total running load plus startup surge. 20 kW suits small needs, 56–100 kW fits mid-size job sites, and 200–320 kW covers large commercial projects. Use our sizing calculator or call us.

Do you deliver and set up generators?

Yes. We deliver, position and start up across the San Francisco Bay Area, and offer fuel delivery for long jobs.

How much fuel does a diesel generator use?

Consumption depends on load — a 100 kW unit may burn roughly 0.5–1 gallon per hour at partial load. See our fuel consumption rates by load.

Are the generators single or three phase?

All listed sizes are available in both single- and three-phase configurations.

Allied Rental Company LLC — Equipment Rentals, San Francisco Bay Area(415) 644-5792 · Reserve Online

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Home / Diesel Generator Sizes

Temporary Power · 20–320 kW

Compare Diesel Generator Sizes & Specifications

Name: Allied Rental Company LLC
Address: 15 Copeland St, Petaluma, CA, 94952, US
Telephone: (415) 644-5792
Price range: $$

Compare towable diesel generator rentals from 20 kW to 320 kW — voltages, amperage, phase and typical applications. All units rent with delivery, setup and optional fuel delivery across the San Francisco Bay Area.

Size	Voltage & Amperage (FLA)	Phase	Typical use
20 kW	120A @120V · 60A @240V · 30A @480V	1 & 3	Small sites, light commercial, residential backup	Details →
56 kW	330A @120V · 165A @240V · 82A @480V	1 & 3	Mid-size job sites, restoration drying setups	Details →
100 kW	602A @120V · 300A @240V · 150A @480V	1 & 3	Large drying jobs, multi-unit power	Details →
200 kW	1100A @120V · 500A @240V · 250A @480V	1 & 3	Major projects, events, commercial backup	Details →
250 kW	1500A @120V · 750A @240V · 376A @480V	1 & 3	Heavy commercial / industrial loads	Details →
320 kW	1800A @120V · 900A @240V · 450A @480V	1 & 3	Largest operations, prime / standby power	Details →

Reserve a Generator Sizing Calculator Fuel Consumption

Diesel Generator

20 KW

Small sites, light commercial, residential backup

Specs →

Diesel Generator

56 KW

Mid-size job sites, restoration drying setups

Specs →

Diesel Generator

100 KW

Large drying jobs, multi-unit power

Specs →

Diesel Generator

200 KW

Major projects, events, commercial backup

Specs →

Diesel Generator

250 KW

Heavy commercial / industrial loads

Specs →

Diesel Generator

320 KW

Largest operations, prime / standby power

Specs →

Choosing the right generator

Selecting a diesel generator comes down to power need, fuel efficiency and rental duration. Continuous jobs favor efficient mid-to-high kW units; short events may only need a compact size.

Frequently asked questions

What size diesel generator do I need?: Size to your total running load plus startup surge. 20 kW suits small needs, 56–100 kW fits mid-size job sites, and 200–320 kW covers large commercial projects. Use our sizing calculator or call us.
Do you deliver and set up generators?: Yes. We deliver, position and start up across the San Francisco Bay Area, and offer fuel delivery for long jobs.
How much fuel does a diesel generator use?: Consumption depends on load — a 100 kW unit may burn roughly 0.5–1 gallon per hour at partial load. See our fuel consumption rates by load.
Are the generators single or three phase?: All listed sizes are available in both single- and three-phase configurations.