Solar Photovoltaic Water Pumping Systems (Centrifugal Pumps) are subject to mandatory BIS ISI certification under the Pumps (Quality Control) Order, 2026. From 6 mo after publication of the QCO in the e-Gazette, these products cannot be lawfully manufactured for sale, imported, or distributed in India without a valid BIS ISI licence under IS 17018 (Part 1):2018. Non-compliance attracts penalties under the BIS Act, 2016 — product seizure, fines, and prosecution.
This guide covers the applicable Indian Standard, key technical and safety requirements, the step-by-step certification process, documentary requirements, and the most common compliance pitfalls for manufacturers and importers.
📜 Applicable Indian Standard
- IS 17018 (Part 1):2018 — Solar Photovoltaic Water Pumping Systems (Centrifugal Pumps) (primary standard)
- Aligned with the corresponding IEC / ISO standard for technical performance and safety
- Latest amendments notified by BIS apply automatically
📌 Solar pumping is central to PM-KUSUM and rural energy programmes. The QCO enforces system-level performance — covering solar array, controller, pump, and integration — to ensure dependable off-grid water supply.
🔬 Key Quality Requirements Under IS 17018 (Part 1):2018
BIS-approved laboratories evaluate the following during type testing:
System Performance
Daily water output at standard solar irradiance verified. Total dynamic head and discharge per IS 17018-1 charts.
Controller & Inverter
Maximum Power Point Tracking (MPPT) efficiency, motor drive performance, and protection features tested.
Pump Hydraulics
Centrifugal pump efficiency, head-discharge curve, and endurance per IS 17018-1. Material certification for water-contact parts.
Safety & Protection
Dry-run protection, over-temperature cut-out, surge protection, and earthing verification across the integrated system.
Products covered under IS 17018 (Part 1):2018:
- Solar surface centrifugal pumps
- Solar submersible centrifugal pumps
- AC / DC solar pump controllers matched with the pump
- PM-KUSUM compatible solar pump systems
📋 Step-by-Step BIS ISI Certification Process
- System ScopingDefine the certified scope — solar array power, controller model, pump model, head, and discharge. The system is certified as an integrated product.
- Application FilingSubmit online application on manak.bis.gov.in. Indian manufacturers / integrators via Product Certification Scheme; foreign manufacturers via FMCS.
- Sample TestingSubmit the complete solar pump system to a BIS-recognised lab. System performance, MPPT efficiency, and pump endurance tests: approximately 5–7 weeks.
- Factory InspectionBIS officers inspect controller assembly, pump manufacturing, integration process, and in-house testing capability.
- Licence GrantBIS issues the ISI Mark licence. ISI Mark plus licence number is applied on the controller and pump nameplate.
- Surveillance & RenewalPeriodic BIS market sample testing, factory audits, and annual marking fees keep the licence active.
📄 Documents Required
- Company incorporation / registration certificate
- System scope: solar wattage, controller, and pump details
- Controller and pump engineering drawings and BOM
- MPPT algorithm and motor drive design records
- Integration / assembly process flow chart
- Quality Manual / ISO 9001 certificate (if available)
- AIR appointment letter (for foreign manufacturers)
- Existing test reports from BIS-recognised / MNRE labs (if any)
⚠ Common Compliance Pitfalls
Common issues include MPPT efficiency below standard limits, pump head shortfall at low solar irradiance, controller protection feature failures, and mismatched pump-controller pairings outside the certified scope.
🏭 Special Considerations for Importers
Solar pump components are imported in volume — particularly controllers from China and Europe. The complete system as marketed in India must hold a valid BIS ISI licence. PM-KUSUM and MNRE empanelment reference this ISI status going forward.
Get BIS Certified — We Handle Everything
Global Approbation manages end-to-end BIS ISI / FMCS registration for Solar PV Water Pumping (Centrifugal) — from documentation to licence grant. Enforcement begins 6 mo from QCO notification.
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