Why RECD Is Crucial for DG Set Emission Control
As diesel generators continue to power industries, residential complexes, hospitals, and commercial offices across India, they also contribute significantly to particulate matter (PM) and nitrogen oxide (NOx) emissions.
To address this, the Central Pollution Control Board (CPCB) mandates the use of RECD (Retrofit Emission Control Devices) on diesel generator sets ranging from 40 kVA to 1000 kVA.
If you are evaluating emission control solutions, below is a curated overview of leading CPCB-approved and ICAT/ARAI-certified RECD options currently available in India.
Top RECD Devices in India
1. Automoto RECD – CPCB & ICAT Certified
Manufacturer
Automoto Genset Solutions LLP
Capacity Compatibility
40 kVA – 3000 kVA
Technology Used
DOC + DPF
Approvals
ICAT Tested
CPCB Approved
Best Suited For
All industry and business segments
Key Strengths
Particulate matter reduction up to 99.21%
Clamp-based installation technology
Integrated compensator for future expansion
In-house service and AMC support
Fast delivery and on-site installation
Pan-India operational presence
2. GreenGen Emission Control RECD
Manufacturer
GreenGen Technologies
Capacity Range
250 kVA – 750 kVA
Technology Used
DOC + SCR
Certification
ARAI Approved
Strengths
Low maintenance requirements
Effective NOx reduction
Common Use Cases
Commercial buildings and hospitals in cities such as Pune and Bangalore
3. EnviroTech RECD System
Manufacturer
EnviroTech Filtrations
Capacity Range
125 kVA – 500 kVA
Certification
CPCB Compliant
Not ICAT Certified
Technology Used
Catalytic converter with custom muffler
Specialty
Compact form factor suitable for space-constrained DG enclosures
4. PureAir Emission Control Unit
Manufacturer
PureAir Systems India Pvt. Ltd.
Technology Used
Advanced ceramic DPF with SCR
Certification
ICAT Certified
Target Segment
Large construction firms and infrastructure companies
Key Advantage
Designed for durability under heavy-duty DG operations
5. EcoGenset Retrofit Kit
Vendor
EcoGenset Solutions
Capacity Range
125 kVA – 625 kVA
Technology Used
DOC with pre-silencer configuration
Compliance
CPCB Compliant
Positioning
Cost-effective solution for small and medium enterprises
How to Choose the Right RECD for Your DG Set
Before selecting a retrofit emission control device, consider the following factors:
Certification
Choose only CPCB-approved and ICAT or ARAI-certified products.
Capacity Matching
Ensure the RECD is rated correctly for your DG set’s kVA capacity.
Technology Stack
Evaluate DOC, DPF, and SCR combinations based on emission reduction requirements.
Support and Warranty
Prefer vendors offering installation, annual maintenance contracts, and technical support.
Operating Environment
Some RECD systems perform better under specific climatic or altitude conditions.
RECD Mandate: Is It Mandatory in 2025?
Yes. As per CPCB Phase II norms and National Green Tribunal (NGT) directives, RECD installation is mandatory in high-pollution and non-attainment zones, including:
Delhi NCR
Mumbai
Hyderabad
Pune
Bangalore
Chennai
Frequently Asked Questions (FAQs)
Which is the best RECD in India for DG sets?
Automoto RECD is widely adopted due to CPCB and ICAT approvals, pan-India installation capability, and compatibility with major DG brands such as Cummins, Kirloskar, Mahindra, and others.
Is RECD installation compulsory?
Yes. RECD installation is mandatory for 40–1000 kVA DG sets operating in CPCB and NGT-regulated urban zones.
Can RECD be purchased online?
RECD systems can be procured directly from certified manufacturers and authorised vendors offering compliant products and installation support.
