Stellar’s Hybrid Power Source (HPS) is reimagining how service trucks are powered.
HPS is a first in the service truck industry — a fully integrated, emission-free power system designed to redefine how technicians work.
With its low-voltage design, flexibility and cleaner, quieter performance, the HPS delivers the future of service truck power.
Earlier this year, HPS was named a finalist in ConExpo’s Next Level awards.
“Our team works hard to bring the needs of our customers to life — and that’s exactly what the HPS stands for. We are continuously improving our products to better serve an industry that continues to push the envelope,” said Tim Davison, Vice President of Sales and Marketing for Stellar.
By combining automotive-grade lithium-ion technology with a modular hydraulic power system, HPS delivers clean, reliable energy without relying on the chassis engine.
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The system provides 100 per cent emission-free, low-voltage energy to operate hydraulic tools, cranes, compressors and stabilizers quietly and efficiently on the jobsite.
With anti-idle compliance and modular battery configurations, operators can choose the ideal setup for their runtime and performance needs.
When charging is required, the system automatically uses the truck’s alternator — even while driving to the next jobsite — or standard 120V connection to recharge, helping eliminate downtime while reducing fuel use and emissions.
HPS is designed to work with both internal combustion engines and electric vehicle chassis to bridge the gap between today’s service trucks and tomorrow’s zero-emission fleets.
On a traditional engine chassis, HPS draws power from the engine for quick recharges, minimizing system size and cost. On an EV chassis, it functions independently as a standalone power source, supporting the shift to all-electric operations.
The system provides up to 12.8 kWh of output and up to eight hours of runtime in the slimmest, lightest configuration in its class. The design incorporates integrated thermal protection for reliable performance in extreme climates and includes a heating system to maintain optimal charging temperatures in cold conditions.
At just 358 kg, the self-contained system can be mounted in the load bed or side pack, making it an easy addition to any new build or retrofit. Internal flow and pressure control ensure consistent hydraulic performance equal to or greater than traditional power take-off systems — without the noise, emissions or maintenance demands.
The modular battery design allows fleets to right-size power capacity based on operational needs, with configurations scalable across multiple vehicle types. Designed for integration with Stellar cranes, stabilizers and compressors, HPS serves as a single, standardized power source — simplifying training, service and fleet management
