Free B2B tool
Commercial RO Plant Cost & TCO Calculator
For facility managers, plant engineers and procurement teams: size the plant, estimate capex, and model five-year total cost of ownership including power, consumables and AMC — with a CapEx-vs-OpEx comparison for your approval note.
Commercial RO plant cost & TCO estimator
A budgetary planning tool for facility and procurement teams. It sizes the plant, estimates capex, and models five-year total cost of ownership including power, consumables and AMC — plus a CapEx-vs-OpEx comparison.
Recommended plant
500 LPH
Includes headroom for membrane ageing
Indicative capex
₹4.3 lakh
Depends on pre-treatment needed
5-year TCO
₹9.4 lakh
≈ ₹0.31 per litre
| Line item | Estimate | Basis |
|---|---|---|
| Capital cost | ₹4.3 lakh | 500 LPH plant with pre-treatment sized for 800 ppm feed |
| Power | ₹48,600/yr | ~18 kWh/day × 300 days × ₹9 |
| Consumables + AMC | ₹52,200/yr | 12% of capex — higher on difficult feed water |
| Total annual opex | ₹1,00,800/yr | Power + consumables + AMC |
| Feed water consumed | 3,636 L/day | At ~55% recovery for this feed TDS |
| Reject water | 1,636 L/day | Plan reuse (flushing, landscaping, cooling makeup) or disposal |
CapEx (purchase)
₹9.4 lakh
Over 5 years, including power and AMC. You own the asset, and it is the lowest total cost.
OpEx (rental / subscription)
~₹10,900/month
≈ ₹6.5 lakh over 5 years, everything included. No capital outlay and easier internal approval, at a higher total cost.
These are budgetary planning estimates, not a quotation. Actual cost depends on your feed-water analysis, materials of construction, automation level, storage and site conditions. Commercial water treatment is always quoted against a water report — send yours and we will give you a specification-backed proposal.
Most commercial water treatment purchases are evaluated on capex alone, and that is why so many of them disappoint. A plant that costs 15% less to buy can cost 40% more to run if its pre-treatment is undersized, its pump is inefficient, or its recovery ratio is poor — and on a five-year view those differences dwarf the purchase price gap.
The calculator above models the whole picture: plant sizing from your actual demand profile, capex banded by feed-water difficulty, annual power from realistic kW-per-LPH figures, consumables and AMC as a share of capex, and the feed and reject volumes implied by your recovery ratio. It then compares outright purchase against a rental/OpEx model over five years.
Two things it deliberately does not do. It does not pretend to be a quotation — commercial water treatment is specified against a laboratory water analysis, and any vendor quoting a firm price without one is guessing. And it does not hide its assumptions: every line in the output states its basis, so your engineering team can check the arithmetic rather than take it on trust.