GreenGen — The only retrofit that cuts emissions and saves fuel
Cleaner, smarter generators. One solution for every kVA.
GreenGen is Saarthi GreenTech’s hydrogen retrofit brand for diesel generators (20 kVA → 4000 kVA). It reduces emissions while saving fuel — an alternative to bulky post-treatment systems.
The challenge with DG sets
Diesel generators are critical in many sectors (telecom, hospitals, data centers, ports, mining) but are also major polluters and expensive to operate. Conventional post-combustion systems are bulky, costly, and don't reduce fuel consumption.
- Filters/SCRs treat exhaust after combustion and add OPEX.
- Large footprint and maintenance overhead for post-treatment systems.
- Operators need compact, ROI-positive retrofits that also cut fuel costs.
The GreenGen advantage
Hydrogen-from-water, metered dosing, compact retrofit and GreenVision connectivity — a solution engineered to reduce emissions and save fuel.
On-demand hydrogen
Generated as needed — no vehicle-level storage risk.
Metered dosing
Intelligent electronics adjust dosing based on load for repeatable performance.
Compact retrofit
No engine modifications, minimal downtime, low upkeep.
Dual benefit
Fuel savings (up to ~8% at higher loads) plus large PM/HC/CO reductions.
Connected
Seamless GreenVision integration for monitoring, reporting and ESG proof.
Product range by generator rating
GreenGen supports Small, Medium and Large ratings — every common kVA has a tailored solution.
Small / Light Commercial (20–100 kVA)
For telecom towers, small commercial buildings and retail hubs.
Medium Commercial / Industrial (125–250 kVA)
For factories, hospitals, campuses and data centers.
Large / Heavy Industrial (320–4000 kVA)
For ports, mining, industrial plants and critical infrastructure.
Applications
Where GreenGen is applied — telecom, hospitals, industry, ports and more.
Telecom Towers
Cleaner 24/7 backup, lower OPEX.
Hospitals & Data Centers
Reliable standby power, ESG compliance.
Industries & Factories
Cost-effective decarbonisation.
Commercial Campuses
Lower emissions for sustainability goals.
Ports & Mining
Decarbonise heavy DG fleets with measurable ROI.
Proven Results & Validation
Field trials and controlled testing across DG ratings.
| Parameter | Baseline | With GreenGen | Improvement |
|---|---|---|---|
| Fuel Consumption | 100% | ~92–94% | Up to ~8% saving |
| PM Emissions | 100% | <20% | >80% reduction |
| CO₂ Output | 100% | ~92–94% | Direct footprint cut |
| HC & CO | 100% | ~30–50% | Significant drop |
✔ Results from DG trials (20–250 kVA) under real-world loads. Larger DG testing and certification are ongoing.
✔ Fact sheets and case studies are available for download.
Benefits at a glance
Why customers choose GreenGen
The smartest retrofit for generators of every size.
GreenGen delivers dual ROI — emissions reduction plus measurable fuel savings.