Scheduled ROV checks of seawater intake and outfall pipes at coastal plants
TL;DR Intakeview inspects the long underwater pipes that feed seawater into desalination and coastal power plants and carry brine or warm water back out. It runs small ROVs on a fixed schedule and reports growth, sand build-up and damage pipe by pipe. Plant operators pay an annual contract.
Coastal plants depend on one or two pipes they rarely see. Chennai's Nemmeli desalination plant draws about 265 million litres of seawater a day through a single 1,050 m intake pipe laid around 14 m deep, and returns brine through a 750 m outfall[1]. The city has a second 100 MLD plant at Minjur and a third, larger plant at Nemmeli with similar pipes[1].
When marine growth or sand narrows an intake, the plant loses flow and output. I found no public record of how often Indian plants inspect these pipes, which usually means inspection happens after trouble and not before.
And divers in poor visibility over a kilometre of pipe? Slow and risky.
Intakeview offers a yearly inspection plan for each intake and outfall. A two-person crew launches a small ROV from a hired boat or the intake head, flies the pipe route, and records video, sonar and wall-thickness readings at set points. Software flags marine growth, sediment, cracks and displaced anchors, and an engineer signs the report.
Because the same route is flown every quarter or half-year, the real product is a trend - how fast growth returns after cleaning, where sand piles up after each monsoon and which joints are changing. That lets the plant plan cleaning before flow drops.
The seed pitched autonomous robots for underwater infrastructure in general. I kept the robots, piloted and not autonomous, and narrowed the market. Dams, ports and jetties already have Indian inspection firms, but intake and outfall pipes are a smaller niche where a routine contract makes sense.
The payer is the plant owner or its operations contractor - desalination plants, coastal thermal and nuclear stations, refineries and LNG terminals that use seawater cooling. The maintenance or operations head signs.
Pricing would be per pipe per visit inside an annual contract. I found no published price for this service. Offshore operators buy similar work in multi-year contracts though, as the state oil major's contractor did with a European survey firm in 2020[6].
Small ROVs are cheap now, and a popular open-design hobby ROV starts at about ₹4.7 L (US$4,900)[5]. Indian buyers are getting used to robot inspection. One Indian ROV maker, which lists power utilities and port operators among clients, raised ₹13 Cr in February 2026[4]. Coastal cities keep adding desalination, with Chennai's third plant built at 150 MLD[1].
There's no public count of seawater intakes in India, or of what plants spend inspecting them. The narrow signal is that each large coastal plant has at least one intake and one outfall, and Chennai alone runs three desalination plants[1].
The adjacent number is one established Indian ROV firm, which reports more than 100 customers for underwater inspection across ports, dams and process plants[2].
One Indian ROV firm inspects ports, jetties, dams and process plants with ROVs and crawlers[2]. Another covers pipelines, tunnels and dams and sells its own ROVs and software[3]. Large European survey firms handle deeper offshore oil and gas work[6].
Any of these could do intakes, so the gap is narrow. It's a scheduled, low-cost contract with trend reporting built for intake pipes, aimed at plants that only buy inspection when something breaks.
| Difficulty | Moderate (46/100) |
| Starting capital | ₹60–110 L |
| Time to launch | 6–9 months |
Flying an ROV inside or along a pipe in strong currents and near-zero visibility is the hard technical work. Getting into secure plant sites is slow. The biggest challenge is commercial though, because you're competing with established firms on a niche they could walk into any time they like.
I found no Indian licence needed to fly an ROV for commercial inspection. Plant access is the real gate.
Building this outside India? The categories above usually have a local equivalent, so check with your own regulator.
Don't let AI decide whether a pipe is safe to keep running. That call has to come from a signed engineer, because a missed failure can shut down a plant.
Want to work out the AI layer for Intakeview? Talk to Yash →
Here's what can go south -
It's worth a shot for an ROV pilot or marine engineer who already knows plant maintenance teams. As a venture-scale bet I think it's weak.
Prove one thing first - three plants will sign annual plans at a price that covers two crews. Then decide whether to widen to cooling-water systems.
Plan for about ₹60–110 L, mostly for an ROV, sonar, thickness gauges, a crew and site-safety training.
I found no specific licence. You need each plant's permit-to-work, safety induction and sometimes security clearance, plus a check with the local maritime board.
Yes, coastal desalination and power plants exist worldwide. Check local rules on commercial diving and ROV work near critical infrastructure.
The free Intakeview validation kit has the line-by-line capital breakdown, the effort scoring, the site-access and safety checklist, a 14-day validation sprint with pass/fail targets, a 90-day launch plan, 10 interview questions for plant maintenance heads, and 5 assumptions to test. Download the kit →
Thinking about building Intakeview or something close to it? The make-or-break step is winning annual contracts against firms that already inspect for the same plants, and that's a positioning problem I can help you think through. If you need a hand, you know where to find me. Talk to Yash →
For illustration only. Names are fictional and ideas hypothetical; sourced facts are real but may be out of date. Nothing here is legal, financial or professional advice, and Yash Khatri is not personally liable for any use of it. Read the full disclaimer.