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About VSRI Energy

VSRI Energy Solutions Pvt Ltd is a pioneering green energy company incorporated in India (CIN: U19203AP2023PTC111472), specializing in green hydrogen technologies, zero-emission thermal power, and sustainable fuel conversion solutions.

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SIGMAe

SIGMAe

Technical Specifications

Compatibility BSIV & BSVI diesel engines
Gas Substitution 60–70% (dual-fuel)
Fuel Savings 35–45%
Certification ARAI / ICAT Approved
Safety Auto gas cut-off, flame trap, solenoid valves
Installation Time 1–2 days per vehicle/DG set

Retrofit any Diesel Engine to Bi-fuel (Diesel or CNG)

SIGMAe

A certified Bi-fuel retrofit solution enabling diesel generators, Commecrial Vehicles and industrial engines to operate on Compressed Natural Gas (CNG) or Compressed Bio-Gas (CBG), slashing fuel costs by up to 40%.

The VSRI CNG/CBG Retrofit Kit provides a cost-effective path for fleet operators and industries to reduce fuel expenditure and carbon footprint without replacing their existing equipment. The kit includes a precision-engineered gas mixer, electronic control unit, high-pressure regulators, and all safety interlocks required for safe dual-fuel operation.

Approved by RTO/ARAI-certified testing agencies and compatible with BSIV/BSVI emission norms, the retrofit system operates transparently — the engine automatically switches to diesel if gas pressure drops, ensuring zero downtime.

Key Features

  • Works on diesel generators, trucks, buses, and industrial engines
  • Dual-fuel mode: 60–70% gas substitution
  • Fuel savings: 35–45% compared to diesel-only operation
  • ARAI/ICAT certified components
  • Auto-switchover to diesel on gas pressure drop
  • Compatible with CNG, CBG, and biogas sources

Interested in SIGMAe?

Our team can provide a detailed proposal, engineering consultation, and site assessment tailored to your requirements.

Contact Us Today

VSRI Energy Solutions Pvt Ltd — pioneering India's transition to green energy through hydrogen technologies, zero-emission thermal power, and sustainable fuel solutions. CIN: U19203AP2023PTC111472.

  • +91 98765 43210

  • info@vsrienergy.com

  • SHED NO. E14, Industrial Estate,
    Settipalli, Renigunta,
    Chittoor, Andhra Pradesh – 517506

  • Mon–Fri: 9am – 6pm
    Sat: 10am – 2pm
    Sun: Closed