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Smart Hydrogen. Cleaner Future.

Engineering a Profitable Path to Net-Zero

Hydrogen-enabled retrofits, IoT-powered carbon intelligence, and engineered decarbonisation for fleets, DG sets, marine engines and industrial equipment — without replacing existing engines.

Trusted across fleets, industries, ports, mining and power applications.

Solutions Built for the Hardest-to-Abate Diesel Applications

Explore results-driven retrofit solutions designed specifically for your industry.

Fleets & Logistics

Hydrogen retrofits for trucks and buses to reduce fuel use, lower emissions, and optimise total cost of ownership.

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DG Sets / Industrial Power

Hydrogen-diesel hybrid systems for 20-4000 kVA DG sets across manufacturing, buildings, hospitals, and telecom.

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Ports & Marine

Retrofits for marine auxiliary engines, tugs, barges and port equipment — verified emission results.

View Marine Solutions

DaaS (Zero CapEx Model)

Retrofit any engine and pay a monthly fee lower than the value of fuel saved. Unlocking cash flow from day one.

Explore DaaS Model

Verified by Stack Tests, Telemetry & Independent Certifications

5-25% Fuel & CO2 Savings

Based on real-world telemetry across fleets and DG sets, providing clear ROI.

50%+ Emission Reduction

Validated through stack emission tests on 380 kVA and 1500 kVA DG sets.

Certified & Compliant

CE • UL • ROHS • EMC • ISO 9001. Global standards for trust and reliability.

Industry & Safety Standards

The Complete Decarbonisation Loop

Strategy, engineering and intelligence working together — all in one integrated ecosystem.

GreenMentor

Plan & Design: Decarbonisation strategy, engine assessment, and roadmap creation.

Next Step

GreenLabs

Build & Deliver: Engineering and installation of the hydrogen retrofit systems (CapEx or DaaS).

Next Step

GreenVision

Measure & Verify: IoT/AI platform delivering real-time telemetry, savings and auditable ESG reporting.

Next Step

Verified Reduction

The outcome: Proven CO₂ Reduction, Fuel Savings, and Compliance for your business.

Zero CapEx. Guaranteed Impact.

**You save diesel. The savings pay for the system.** We remove the financial barrier to decarbonisation.

Explore DaaS →

The DaaS Advantage:

Zero Upfront Cost

Savings-Linked Monthly Fee

Saarthi Handles Installation, Maintenance & Support

Verified Savings via GreenVision Telemetry

Scalable Across Fleets, Sites, and Industries

Why We Built Saarthi

After three decades of building and scaling global technology organisations, our team chose to solve a harder problem — decarbonising the diesel engines the world already depends on. Saarthi brings together hydrogen engineering, deep operational knowledge, and real-time carbon intelligence to make climate action practical, profitable and immediate.

Read the Founder's Story