100 kVA Generator
Equal to 80 kW. Cummins, Deutz, Baudouin & Perkins engines, open and silent, with fuel use and dimensions compared.
Getting to Know 100 kVA Generators
A 100 kVA generator is a small-to-mid class unit widely used as backup power for commercial buildings and service facilities. At a power factor of 0.8, 100 kVA is about 80 kW.
JERBINDO offers 100 kVA generators with several engine brands, so you can choose by fuel use, dimensions and service availability at your site.
Suited to
- Schools
- Clinics & health centres
- Offices
- Restaurants
- Small commercial buildings
- Warehouses & cold storage
Prime or Standby?
Main power
100 kVA prime
- The generator is the main power source, for example at a site without grid power
- It runs long hours every day with a varying load
e.g. BJPS-100-WP
Grid backup
100 kVA standby
- The generator only runs during grid outages
- The 100 kVA prime models already have a standby rating of about 110 kVA
Use the 100 kVA prime models
100 kVA Generator Options
Every JERBINDO 100 kVA model by engine brand. Select a model for full specifications.
Cummins engine
Fuel at 75% (prime): 17–20 L/hr2 models
| Model | Prime kVA | Standby kVA |
|---|---|---|
| CJPS C-100 WP6BT5.9-G2100 kVA prime | 100 | 110 |
| CJPS O-100 WPQSB5-G5100 kVA prime | 100 | 110 |
Deutz engine
Fuel at 75% (prime): 18.4–19.7 L/hr2 models
| Model | Prime kVA | Standby kVA |
|---|---|---|
| DJPS-100 APBF6L914100 kVA prime | 100 | 110 |
| DJPS-100 WPBF 4M 1 013 EC100 kVA prime | 100 | 110 |
Baudouin engine
1 models
| Model | Prime kVA | Standby kVA |
|---|---|---|
| BJPS-100-WP4M10G110/5100 kVA prime | 100 | 110 |
Perkins engine
Fuel at 75% (prime): 17.1 L/hr1 models
| Model | Prime kVA | Standby kVA |
|---|---|---|
| PJPS-100 WP1104 C-44TAG2100 kVA prime | 100 | 110 |
Generator Room Requirements
General guidance for the 100 kVA class from engine and generator makers' installation manuals. Final figures follow the installation drawings and datasheet of the chosen unit.
- Minimum room, 1 unit
- 5.2 × 4.1 m
- Open type (L × W × H)
- 2000–2200 × 750–1030 × 1000–1580 mm
- Silent canopy (L × W × H)
- 2600–2800 × 1200 × 1300–1500 mm
Service clearance
1.5 m per side
- Leave at least about 1.5 m of clear space on every side of the generator for maintenance (Cummins' guide for units from 100 kVA; other sources give 0.9–1.2 m), plus room above it to open panels. With the largest open unit in this class, one generator needs a room of at least about 5.2 × 4.1 m.
Ventilation
Outlet ≈ 1.5× radiator
- Provide an air inlet behind the generator and an outlet in front of the radiator. As a general guide, the outlet is about 1.5× the radiator core area and the inlet 1.5–2× (louvres cut the free area by about 25%). Keep the room no more than about 7–10 °C above outdoor air; above 40 °C the generator needs derating.
- In this class the radiator fan is usually enough, as long as the openings are not blocked.
Foundation
≥ 2× unit weight
- A concrete foundation of at least about 2× the generator's weight, extending 150–300 mm beyond the skid on every side, with vibration isolators between the skid and the foundation. Let the concrete cure for 28 days before loading. Dry weight of the open units in this class: 1.1–1.4 tonnes.
Day tank
140–160 L / 8 hours
- Fuel use at 75% load: 17–20 L/hr, or about 140–160 L for 8 hours of running. Size the day tank from this; for longer running add a bulk tank with a transfer pump.
- NFPA 37 limits a tank inside the generator room to 2,500 L unless it has its own fire-rated room; local regulations also apply.
Exhaust
Backpressure ≤ datasheet
- A flexible connector at the engine outlet; pipework supported on its own so it does not load the engine, insulated and fitted with a rain cap. Choose the pipe and silencer so backpressure stays within the engine datasheet limit; avoid long runs and many bends. Discharge away from the air inlet.
Configuration
Open · Silent · Mobile
- Open units suit an enclosed generator room; silent canopy units suit open areas or sites near housing.
- As grid backup, a 100 kVA generator is usually installed with an ATS/AMF panel so it starts automatically during an outage.
- A silent mobile (trailer) configuration is also available for needs that move between sites.
Generator Projects Around 100 kVA
Projects from our project list with units of around 100 kVA.
Frequently Asked Questions
How much does a 100 kVA generator cost?
The price of a 100 kVA generator depends on the engine brand, the configuration (open type, silent canopy, silent mobile), an ATS/AMF or synchronizing panel, installation and commissioning, the delivery location, and the warranty and after-sales service. Use Request a Quote with your requirements and our sales team will send a quotation.
How many kW is a 100 kVA generator?
At the 0.8 power factor commonly used for generators, 100 kVA equals 80 kW. The exact kW of each model is on its specification page.
How much diesel does a 100 kVA generator use?
At 75% load, the 100 kVA prime generators in our catalogue use about 17–20 L/hr, depending on the engine brand and model. Fuel use at 50% and 100% load is on each model's page.
Should I choose 100 kVA prime or standby?
The prime rating applies when the generator is the main power source; the standby rating is for backup during grid outages, with limited running hours. Every model on this page is rated 100 kVA prime.
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