Our auxiliary power units (APUs) and DC gensets are designed to deliver reliable and efficient power solutions for industrial, commercial, and off-grid applications. These DC generators are engineered with cutting-edge technology to ensure optimal performance, reduced fuel consumption, and minimal maintenance. Whether you need an auxiliary power unit APU for backup power or a high-performance DC generator for continuous operation, our products are compact, versatile, and customizable to meet diverse energy needs.
As industries seek to reduce emissions, enhance efficiency, reduce OPEX and move towards sustainability, our DC Gensets provide an effective solution. Featuring an intelligent DCDG controller, DC Generators are one of the most reliable means to charge batteries and operate DC loads. DC Generators are mostly used for Off-Grid & Mobile Power requirements where there is an absence of a reliable grid.
DC GENSETS
The auxiliary power units
An auxiliary power unit is a complete DC generator set sized to run a vehicle or a site’s secondary loads without idling the main engine. These are the standard units, all with the permanent magnet alternator, intelligent DCDG controller and variable-speed operation described below.
| Unit | Output | Bus | Engine | Envelope |
|---|---|---|---|---|
| DCGO-05 — 5 kW set | 5 kW | 24 V or 48 V | Kohler KD440/441, air cooled | 700 × 600 × 580 mm, 85 kg |
| DCGO-14 — 14 kW set | 14 kW | 24, 48, 72 or 96 V | Kohler KSD1403TC, turbo, liquid cooled | 1,200 × 800 × 1,200 mm, 350 kg |
| DCGO-25 — 25 kW set | 25 kW | 48, 72 or 96 V | Kohler KDI1903TC, liquid cooled | 1,500 × 1,000 × 1,200 mm, 585 kg |
| Gas DC generators | Built to order | 24 V to 96 V | Spark ignition | Per configuration |
All are available open-frame, with an integrated 200, 400 or 600 litre tank, or in a sound-attenuated enclosure.
Other ways to carry the same load
Not every auxiliary load needs its own engine. Three other configurations cover the same job:
- Truck mounted and PTO — where the vehicle’s own engine is already running, a PTO or belt-driven generator gives up to 10 kW at 24 V and 18 kW at 48 V with no second engine to maintain. It cannot power anything at rest, which is the line between this and a true APU.
- 48 V and 72 V range extenders — where the auxiliary load is a traction pack rather than hotel load, and the unit charges on the move. Flange mounted on a spline shaft for driveline integration, 5 to 25 kW.
- DC generator heads — the alternator on its own, for customers mounting to an engine they already have.
The full range by bus voltage is on the DC generator hub: 24 V, 48 V, 72 V and 96 V.
DC gensets, or DC generators, play a crucial role in various real-life applications by providing reliable, efficient, and sustainable power. These systems are widely used in industrial settings, remote locations, and backup power scenarios where constant electricity supply is critical.
In sectors like telecommunications, DC gensets ensure that communication networks stay operational even during power outages. Their use in renewable energy systems, such as solar and wind power, allows for the conversion of stored energy into a stable DC output, supporting off-grid areas.
Why Choose Our DC Generator?
Fuel Efficiency:
The alternator (PMA) boasts over 93% efficiency, resulting in a 15% increase in fuel savings, further optimized by load-based variable speed operation.
Low Maintenance:
A bearing less design reduces wear and tear on the alternators and engine, extending the life-span and reducing maintenance over time.
Intelligent DCDG Controller:
Automatically adjusts engine RPM and controls DC output to match voltage and load requirements, protecting battery charging and direct DC loading.
Compact:
With at least 30% decrease in the size of the alternator, the DG set becomes more compact and light weight.
Fast Start-Up:
With an instant start-up time of less than 10 seconds, our genset ensures that your equipment is up and running in no time.
Configuration of Our Alternators in DC Gensets
The alternator in our DC gensets is designed to ensure maximum efficiency and reliability under various load conditions. It features a robust permanent magnet configuration, delivering consistent DC output with minimal energy losses. Key highlights of our alternator configuration include:
- High Efficiency: The alternator is optimized for superior energy conversion, reducing fuel consumption and operational costs.
- Compact Design: Its lightweight and space-saving build make it ideal for applications with limited installation space.
- Durable Construction: Built with high-quality materials, the alternator withstands harsh environments and ensures long-term performance.
- Low Maintenance: The advanced design minimizes wear and tear, reducing the need for frequent maintenance.
- Custom Voltage and Current Ratings: Our alternators are available in various configurations to suit specific power requirements.
This powerful combination ensures that the alternator not only supports the high-performance demands of the DC generator but also enhances the overall reliability of the auxiliary power unit (APU) system.
Applications of DC Gensets
Agricultural Machinery
DC gensets provide reliable power solutions for tractors and other farming equipment, ensuring uninterrupted operation in remote agricultural fields.
Portable Light Towers
Ideal for light towers, DC gensets ensure consistent and efficient power for outdoor lighting in construction sites and emergency scenarios.
Military Vehicles
Designed for rugged environments, DC gensets deliver dependable auxiliary power for armored vehicles and military equipment in field operations.
Telecommunication Towers
DC gensets support continuous power for telecom towers, ensuring seamless communication even in areas with unreliable grid connections.
Explore More DC Generator and Auxiliary Power Units
For comprehensive details, including specifications and pricing, visit our dedicated website.
Why an APU rather than idling
The argument for an APU is idling. A truck idling its main engine to run cabin systems, hydraulics or refrigeration burns fuel through a machine sized for propulsion, at the speed that engine happens to idle at, with the emissions and the hour-meter cost that follows. A DC APU runs a small engine at the speed the load actually needs, charging a bank the load then draws from — so the engine runs less often, and the main engine does not run at all.
Three things make the difference on this product specifically: the alternator is over 93% efficient against under 78% for a conventional machine, which with load-based variable speed gives roughly 15% lower fuel consumption; the alternator is at least 30% smaller, which is what makes it carryable; and start-up is under 10 seconds, so the bank is never carried deep while waiting.