How Much Does an RECD Cost in India?

There is no single correct answer to “what does an RECD cost,” and any quote you get without first specifying your generator’s exact kVA rating should be treated as a rough placeholder, not a real number. Price scales heavily with capacity, technology, and installation complexity, and it is built from more line items than most first-time buyers expect. Rather than hand you one number that will not match your situation, this article builds a quote from scratch, the way a vendor actually would, across three example capacity bands, so you can see exactly where the cost comes from and where it can move.

Before the numbers, one honest framing point: publicly listed prices for RECDs vary widely between vendors, even for the same capacity band, because they depend on the specific technology (DOC-only versus DOC-plus-DPF, passive versus active regeneration), fabrication complexity, and what services are bundled into the quote. Industry pricing surveys and marketplace listings for retrofit emission control devices show exactly this spread. Treat every figure below as an indicative range to sanity-check a quote against, not a fixed retail price.

What Actually Goes Into an RECD Quote

Every legitimate RECD quote is built from some combination of five line items, whether or not the vendor itemises them separately.

1. The device itself. The catalytic and filtration hardware, custom-fabricated housing, and internal components (substrate, filter, sensors, and controller on active-regeneration units). This is usually the largest single line item and the one that scales most directly with kVA capacity.

2. Fabrication and customisation. Because the housing has to match your generator’s exact exhaust diameter, flow characteristics, and available installation space, there is a fabrication cost layered on top of the base device cost, separate from mass-produced components.

3. Installation labour. Physical fitting, as described in our step-by-step installation guide, typically running one to three days depending on capacity and site access.

4. Testing and commissioning. Post-installation performance checks, backpressure and temperature verification, and documentation of results specific to your unit.

5. Documentation and compliance support. CPCB certificate copies, installation reports, and, depending on the vendor’s package, help with the regulatory filing step that follows installation.

Some vendors also fold a first-year annual maintenance contract (AMC) into the headline quote; others sell it separately. Always ask explicitly whether AMC is included, because its absence from a headline number can make one quote look artificially cheaper than another.

Building the Quote: Three Worked Examples

Example One: A 125 kVA Generator

This is a common capacity for mid-sized commercial buildings, IT offices, and retail establishments, and it sits squarely in CAQM’s capacity band that requires either dual fuel conversion or an RECD.

For a straightforward retrofit at this capacity, with reasonably accessible exhaust routing and a passive-regeneration system, the device and fabrication line items together commonly fall in the range of roughly two to five lakh rupees. Installation labour on a set this size is usually a smaller fraction of the total, often in the tens of thousands of rupees given the one-to-three-day fitting window. Testing, commissioning, and documentation add a modest additional amount, often bundled into the vendor’s base quote rather than itemised separately at this capacity. All-in, a realistic total for a 125 kVA installation, before any AMC, commonly lands somewhere between roughly three and six lakh rupees, with the spread driven mainly by whether the system uses active or passive regeneration and how much site-specific fabrication is required.

Example Two: A 400 kVA Generator

This capacity is common in mid-sized industrial facilities, hospitals, and data centres, and it sits toward the upper end of CAQM’s dual-fuel-or-RECD band.

At this size, the device and housing cost more, both because the hardware itself is larger and because fabrication tolerances matter more on a higher-flow exhaust system. Device and fabrication together commonly run in the range of roughly five to nine lakh rupees. Installation labour rises modestly with capacity, since larger exhaust sections and heavier components take longer to fit safely, but it still tends to remain a smaller share of the total than the device and fabrication line. A realistic all-in total for a 400 kVA installation commonly falls somewhere between roughly six and ten lakh rupees before AMC, again varying with technology choice and site conditions.

Example Three: A 1000 kVA Generator

At the upper end of the most commonly retrofitted range, and moving into territory where some vendors’ product lines extend to significantly larger capacities still, cost scales up meaningfully. Device, fabrication, and installation together for a 1000 kVA unit commonly run from roughly ten lakh rupees upward, with well-documented reports of pricing exceeding fifteen lakh rupees for the largest, most complex installations, particularly where active regeneration, tighter emission targets, or difficult site access are involved.

Annual Maintenance Contracts

Beyond the upfront installation cost, most RECD owners take out some form of annual maintenance contract covering filter inspection, cleaning, sensor checks, and regeneration system servicing. Reported AMC costs across the market commonly range from roughly fifty thousand to two lakh rupees per year, scaling with capacity and with whether the contract includes parts replacement or labour only. Skipping AMC to save money in year one is a common false economy; a neglected filter that needs full replacement rather than cleaning typically costs more than several years of AMC combined, a point covered in more detail in our RECD maintenance guide.

Why “Same Capacity” Quotes Can Still Differ by Lakhs

It is common to collect three quotes for the same 250 kVA generator and see numbers that differ by two or three lakh rupees, which understandably makes buyers suspicious that someone is either overcharging or cutting corners. Usually the real explanation is that the three quotes are not actually pricing the same thing.

Passive vs. active regeneration is the single biggest driver of this gap. A passive-only system, viable when a generator consistently runs at a reasonably high load, is mechanically simpler and cheaper than an active-regeneration system with its own controller, wiring, and in some designs a dedicated heater, which is necessary when a generator typically runs lightly loaded. A vendor quoting passive when your actual load profile needs active is not offering you a bargain; they are quoting the wrong system for your generator, and it may underperform or clog prematurely as a result.

Filter material and catalyst loading also vary. Higher catalyst loading generally costs more but can deliver better performance consistency over the device’s service life; some lower-cost quotes achieve their price by reducing loading closer to the minimum that still clears CPCB’s test threshold, which is not necessarily wrong but is worth knowing about rather than discovering later.

Fabrication complexity specific to your site, covered in our installation guide, can add real cost on a difficult installation (tight enclosure space, unusual exhaust routing, structural reinforcement needed for mounting) that a quote based on a generic, easy-access assumption simply won’t include.

What’s bundled versus itemised. As discussed above, AMC, filing assistance, and extended documentation support sometimes sit inside the headline number and sometimes don’t. Always ask for a line-item breakdown before comparing two totals directly.

Total Cost of Ownership Over Ten Years, Not Just Day One

Sticker price is only part of the real cost picture. Over a typical ten-year service window, a 250 kVA installation with an upfront cost in the roughly five to nine lakh rupee range, plus an AMC of, say, one lakh rupees a year, works out to somewhere in the region of fifteen to nineteen lakh rupees across the full decade, once ongoing maintenance is included. Compare that to the cost of simply replacing the generator entirely with a new CPCB IV+-compliant unit, which for a mid-sized industrial generator commonly runs into several times that figure once the generator itself, not just an after-treatment device, is accounted for. Viewed as a ten-year total rather than a single upfront number, retrofitting an existing, otherwise serviceable generator is very often the materially cheaper path, which is the calculation most facilities are implicitly making when they choose RECD retrofitting over replacement in the first place.

Hidden Costs Vendors Sometimes Leave Off the Headline Quote

Site preparation. If your existing exhaust routing needs rework beyond simply fitting the new unit, whether that is relocating ducting, reinforcing a mounting structure, or addressing corroded existing pipework, that cost sometimes appears as a change order after installation has already started, not in the original quote.

Downtime cost. Installation requires shutting the generator down for one to three days. For a facility that relies on the generator as backup power, that is not a line item on the vendor’s invoice, but it is a real cost, particularly if it coincides with a grid outage during the installation window.

Regulatory filing fees. Depending on your state and whether your existing Consent to Operate needs an amendment to reflect the new RECD, there may be a separate filing or amendment fee payable to the pollution control board, distinct from anything the RECD vendor charges.

Repeat capacity mismatches. If a device is fabricated based on inaccurate site measurements and needs rework, that cost is sometimes absorbed by the vendor and sometimes passed to the customer, depending on the installation agreement’s terms. Confirming this upfront, before fabrication begins, avoids an unpleasant surprise later.

Technology upgrades mid-cycle. If your generator’s usage pattern changes significantly (for instance, running at much lighter average load than when the device was originally sized), a passive-only system installed for one profile may need active-regeneration hardware added later, which is an additional cost beyond the original quote.

Does Location Within India Affect Price?

The core device and fabrication cost is driven primarily by generator specification rather than geography, but two location-related factors can shift the total. Logistics and technician travel cost tend to be modestly higher for installations in smaller towns further from a vendor’s fabrication base or service hub than for installations in major metros where most established vendors already maintain local teams and stock. Separately, urgency created by state or city-specific enforcement activity can indirectly affect price, not because the equipment itself costs more, but because a compressed timeline narrows how many vendors can realistically meet your schedule, which reduces your negotiating leverage compared to planning several months ahead. Neither effect is usually large enough to change which capacity-band range in the table above applies to you, but both are worth factoring in if you are comparing a metro-based quote against a smaller-city one and wondering why they differ slightly.

A Financing Example, Worked Through

To make the financing option from the previous section concrete: on a 400 kVA installation quoted at roughly eight lakh rupees, a typical instalment structure might spread that amount over twelve to twenty-four months rather than requiring the full amount upfront, with the total repaid over that period including interest coming in somewhat above the eight lakh rupee cash price, commonly in a range that depends heavily on the specific lender’s terms and your business’s credit profile. Whether that trade-off makes sense depends entirely on what the alternative use of that upfront capital would have been; for a business with a pressing compliance deadline and limited free cash on hand, the cash-flow relief is often worth the added financing cost, while a business that can pay upfront without strain is usually better off doing so and avoiding the extra interest altogether.

Financing the Cost

Because RECD installation is a mandate-driven capital expense rather than a discretionary purchase, several vendors and third-party finance providers now offer instalment or leasing structures that spread the cost over months rather than requiring the full amount upfront. If cash flow timing is the main obstacle rather than the total cost itself, it is worth asking any shortlisted vendor directly whether they offer, or can connect you with, financing terms, since not every vendor advertises this option by default. Whether any dedicated government subsidy applies to your situation, which is a separate question from financing, is covered in full in is there a government subsidy for RECD installation.

RECD Cost vs. the Cost of Not Installing One

The most useful way to evaluate any of the figures above is against the alternative: what non-compliance actually costs. As detailed in our breakdown of penalties for running an unregistered or non-compliant diesel generator, enforcement action against a non-compliant DG set can include environmental compensation charges calculated for the entire non-compliance period, sealing of the equipment (which stops it from generating any backup power at all until corrective action is taken and fees are paid), and separate penalty tracks under national and, in the National Capital Region, regional air quality law. A real enforcement example on record: Maharashtra’s pollution control circular mandating RECD retrofitting for in-use diesel generators up to 800 kW makes clear that this is treated as a compliance obligation with enforcement consequences attached, not an optional upgrade.

Scenario	Approximate Cost
RECD installation, 125 kVA (one-time, plus AMC)	Roughly 3 to 6 lakh rupees, plus 50,000 to 1 lakh rupees/year AMC
RECD installation, 400 kVA (one-time, plus AMC)	Roughly 6 to 10 lakh rupees, plus 1 to 1.5 lakh rupees/year AMC
Sealing and downtime from a non-compliance order	Complete loss of backup power until resolved, plus environmental compensation calculated over the non-compliance period
Replacing the generator entirely instead of retrofitting	Typically several times the cost of an RECD retrofit for an equivalent capacity unit

Framed this way, RECD installation reads less like a discretionary expense and more like the cheapest of the three realistic paths (retrofit, replace, or risk enforcement) for a generator that already falls under the mandate, which is why closing a compliance gap early, rather than waiting for an inspection to force the issue, is consistently the lower-cost route in practice.

Getting a Quote You Can Actually Trust

Because the spread between a fair quote and an inflated or under-specified one at any given capacity can be significant, it is worth getting at least two quotes before committing, and insisting that both are based on your generator’s actual kVA rating, engine details, and site conditions rather than a generic capacity-band estimate. It is equally worth confirming that whichever vendor you choose is genuinely CPCB-approved for the specific technology and capacity band being quoted, not simply CPCB-approved in general marketing language, a distinction covered in detail in CPCB-approved RECD vendors: how to choose one. A device that is cheaper because it was tested for a different capacity range, or approved under a different technology configuration than what is actually being installed on your generator, is not a bargain; it is a compliance risk that costs more to fix later than it saved upfront.

Frequently Asked Questions

What is the cheapest RECD price in India? For the smallest commonly retrofitted capacities, well below 125 kVA, indicative device and fabrication costs can run under two lakh rupees, though very small capacities are less commonly quoted publicly since much of the compliance mandate is concentrated on 61 kVA and larger sets. Always confirm the quoted price is for a CPCB-approved unit matched to your exact generator, not a generic low-cost estimate.

Does RECD cost include GST? This varies by vendor and should be confirmed explicitly in writing before comparing two quotes; a quote excluding GST will look artificially cheaper next to one that includes it.

Is the AMC mandatory? An AMC is not a legal requirement in the way the RECD installation itself is, but skipping ongoing maintenance risks both performance degradation and, eventually, compliance issues if the device stops functioning as tested. Most vendors strongly recommend it, and it is generally the lower-cost path over the device’s service life compared to reactive repairs.

Why do two vendors quote very different prices for the same capacity? Differences usually come down to technology (passive versus active regeneration), what is bundled into the quote (AMC, filing assistance, extended warranty), and fabrication complexity specific to your installation site. A meaningfully cheaper quote is worth investigating rather than simply accepting, since it may reflect a narrower scope, a different technology tier, or, in some cases, a device not actually approved for your capacity band.

Can I negotiate RECD pricing? As with most capital equipment purchases, quotes are rarely completely fixed, particularly on larger installations or multi-unit orders across several generators at one facility. It is reasonable to ask for a breakdown by line item and negotiate on that basis rather than accepting a single bundled figure.

Does cost vary by state? The device and fabrication cost itself does not vary meaningfully by state, since it is driven by generator specification rather than geography. However, associated regulatory filing fees, and the urgency created by state-specific enforcement timelines, can differ, which is covered in more detail in our compliance guides linked throughout this article.

Does capacity band alone determine price, or does engine age matter too? Capacity is the primary driver, but engine age and condition matter too. An older, more worn engine can run with somewhat different exhaust temperature and backpressure characteristics than a newer one of the same rated capacity, which can affect which regeneration technology is appropriate and, in turn, the price. This is exactly why a proper site assessment, not just a kVA number given over the phone, produces a more reliable quote.

Is it cheaper to install RECDs on multiple generators at one site together rather than separately? Often, yes, at least on a per-unit basis, since fabrication planning, crew mobilisation, and site assessment costs can be spread across several units in one engagement rather than repeated from scratch for each generator. If you have more than one generator needing retrofitting, it is worth asking vendors specifically for a multi-unit quote rather than pricing each one in isolation.

Next Steps

If you know your generator’s kVA rating and want a quote based on its actual specification rather than the general ranges above, you can review Aceget’s CPCB-approved RECD range directly. And before signing off on any quote, it is worth working through our environmental compliance checklist for generator owners to confirm the RECD purchase fits into your generator’s broader compliance picture, not just its exhaust system.