- The MNRE specification is the rulebook every PM-KUSUM pump bid is judged against.
- It fixes daily water output at a reference radiation — the number the field test checks.
- It sets a minimum module efficiency (often ~19%) and long warranties (verify).
- It needs a Universal Solar Pump Controller (USPC) and MNRE-compliant motor-pump sets.
- Every number here is an estimate — confirm against the current MNRE spec PDF before you bid.
The MNRE solar pump specification is the one document that decides whether your PM-KUSUM bid is compliant. Quote a pump that misses the water output or the module rule and your tender can be rejected — or worse, the pump fails the field test and your payment stalls. This guide decodes the spec for EPCs so you quote it right the first time.
What the MNRE solar pump specification is
The MNRE solar pump specification is the official rulebook for PM-KUSUM solar water-pumping systems. It is published by the Ministry of New and Renewable Energy as an "updated specification and testing procedure" and is revised every few years. Every Component B and Component C tender points to it, so your bid must match it line by line.
The spec covers four things: the solar PV array (module type, efficiency, warranty), the motor-pump set (type, head, output, warranty), the controller (the USPC), and the testing procedure used to accept the system on site. Read it as a single chain — a weak link in any part fails the whole pump.
Why the spec matters more than the price
Many EPCs focus only on the benchmark price and the L1 bid. But the spec is what protects your margin. A pump that just scrapes the water-output number on a good day can fail on a cloudy site, and then you carry the repair cost for five years. Buy to the spec, not below it.
The water-output rule is the core test
The water-output rule is the heart of the spec: the pump must deliver a stated number of litres per day at a reference solar radiation. The MNRE spec usually rates output at about 5.5 kWh per square metre per day, for a given total head and HP. This is the number the acceptance test checks on site.
Output depends on head and radiation
The same pump moves less water at a higher head. So the spec gives output figures across head ranges — shallow, medium and deep. When you size a pump for a farmer's borewell, match the head at that site to the spec table, not the best-case shallow figure. Our commissioning and acceptance test guide covers how the on-site measurement works.
Verify the exact litres and radiation basis
The exact litres per day, the head bands and the radiation basis change between revisions. Treat the numbers above as estimates and confirm them against the current MNRE updated specification PDF before you quote. A bid built on an old output table is a bid that can fail inspection.
Module efficiency and warranty rules
The spec sets a minimum solar module efficiency and long warranty terms. Recent revisions have quoted module efficiency around 19%, but this figure moves, so verify the current minimum. Below the threshold, your module is simply not eligible.
Modules also carry a long output warranty and a shorter product warranty. On top of the MNRE spec, your supplies must meet the DCR and ALMM content rules in force — domestic cells or modules and the approved ALMM list. That layer is volatile and litigated, so confirm it against the latest MNRE office memorandum. Our DCR and ALMM compliance guide explains the cutoffs.
Motor and pump rules
The motor-pump set must be an MNRE-compliant type rated for the duty. The spec lists allowed pump types (surface, submersible, AC or DC), the head range each serves, and a comprehensive warranty — commonly about five years — that lines up with your PM-KUSUM O&M duty.
AC vs DC and the brand list
Tenders often allow both AC and DC pumps within the spec; the choice affects controller cost and service. Pumps must usually come from MNRE/test-approved makes. Match the warranty in your supply contract to the warranty in the spec, so a motor failure in year four is the maker's cost, not yours. See our Component B EPC guide for tender-side detail.
Controller and balance of system
The spec requires a Universal Solar Pump Controller (USPC) so controllers work across approved pumps and brands. This interoperability keeps L1 pricing fair and makes service easier, because a field team is not locked to one proprietary box.
Balance-of-system items — module mounting structure, cabling, protections and the data logger — also have to meet the spec and the relevant safety standards. Increasingly, a remote monitoring system is mandatory for subsidy release, so build it into your bill of materials from the start.
Testing and acceptance procedure
The MNRE spec includes a testing procedure that decides whether a pump is accepted on site. The field team measures the water output against the rated figure for the site head, checks the array, controller and protections, and signs the acceptance only when the pump meets the spec.
Acceptance gates your payment
No clean acceptance, no clean claim. If the pump under-delivers, you fix it before the subsidy moves. This is why buying to the spec — not below it — protects cash flow. Build the acceptance checklist into your install workflow so the field team measures the right things on day one.
How to quote against the spec
To quote against the spec, build a compliant bill of materials first, then price it. Map each tender's spec reference to real part numbers, confirm the module efficiency, output table and warranties, and only then run your L1 maths. The matrix below shows the parameters EPCs must pin down before bidding.
Source: MNRE updated specification — verify the current revision.
Where bids fail the spec
Most spec failures are avoidable. Watch these common ones before you submit.
- Old output table — quoting against a previous revision the tender has moved past.
- Module efficiency just under — a panel that misses the current minimum by a fraction.
- Wrong head band — sizing to a shallow figure for a deep borewell, so output fails on site.
- Non-USPC controller — a proprietary box that does not meet the universal controller rule.
- DCR/ALMM gap — modules that miss the domestic-content or approved-list rule in force.
- Warranty mismatch — a supply warranty shorter than the spec's five-year duty.
Each of these is a number you can confirm before you bid. Pin the spec down first; price second.
How SuryaHub helps you bid and build to spec
SuryaHub stores the current MNRE spec parameters against each tender, then builds a compliant bill of materials so your procurement and bid match the required water output, module efficiency and warranties. It carries the same spec into the field acceptance checklist, so the crew measures the right things and your claim workflow stays clean. SuryaHub is pre-revenue; the only real pilots are Suryantra Energy and RGESPL, and every spec figure here is an estimate to verify against the current MNRE PDF.
Bid to the spec, every time
See how SuryaHub ties the MNRE spec to your BOM and field test.
Related guides
Frequently asked questions
What is the MNRE solar pump specification?+
The MNRE solar pump specification is the official rulebook for PM-KUSUM solar water-pumping systems. The MNRE specification sets the minimum water output, module efficiency, motor and warranty rules, and the testing procedure. Tenders quote against it, and a pump that fails the spec on site can hold up your payment. Verify the current version with the latest MNRE specification PDF.
What module efficiency does the MNRE PM-KUSUM spec require?+
The MNRE PM-KUSUM spec sets a minimum solar module efficiency, often quoted around 19% in recent revisions. This figure moves between revisions, so treat it as an estimate and verify the exact minimum efficiency in the current MNRE updated specification PDF before you finalise your bill of materials and bid.
How is solar pump water output measured for PM-KUSUM?+
PM-KUSUM water output is measured as litres per day at a reference solar radiation, usually about 5.5 kWh per square metre per day, for a given head and HP. The acceptance test on site checks the pump meets this rated output. Verify the exact litres, head and radiation basis in the current MNRE specification.
What warranty does the MNRE solar pump spec require?+
The MNRE solar pump spec requires a long output warranty on modules and a comprehensive warranty on the motor-pump set, commonly about five years. These warranty terms match the PM-KUSUM five-year O&M duty. Verify the exact module and motor warranty months in the latest MNRE specification, because the figures change between revisions.
Does the MNRE spec require a universal solar pump controller?+
Yes. The MNRE specification requires a Universal Solar Pump Controller (USPC) so controllers are interoperable across approved pumps and brands. The USPC rule supports fair L1 pricing and easier service. Confirm the current USPC requirement and any protocol details in the latest MNRE specification before you quote a controller in your bid.
How does SuryaHub help EPCs meet the MNRE spec?+
SuryaHub stores the current MNRE spec parameters against each tender and builds a compliant bill of materials, so your procurement and bid match the required water output, module and warranty rules. SuryaHub is pre-revenue; the only real pilots are Suryantra Energy and RGESPL, and all spec figures are estimates to verify.
Sources & references
Spec parameters and the testing procedure come from primary MNRE and SECI sources. Every figure on this page is an estimate — confirm the current revision before you bid.
- Ministry of New & Renewable Energy (MNRE) ↗
Updated specification and testing procedure for SPV water pumping systems.
- Solar Energy Corporation of India (SECI) ↗
Model tender documents and pump testing procedure references.
- PM-KUSUM National Portal ↗
Component B/C scheme rules and benchmark references.
Written by the SuryaHub team · reviewed against MNRE, SECI & PM-KUSUM portal sources · updated 19 June 2026.
Method: Spec parameters are read from the MNRE updated specification and testing procedure and re-checked each cycle. All numbers are estimates; confirm the current MNRE revision at publish. SuryaHub is pre-revenue; only Suryantra Energy and RGESPL are real pilots.
Change log: 19 Jun 2026 — first published.