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IS 16365:2016 is the Indian Standard (BIS) for solar photovoltaic (spv) pumping systems - specification. This standard specifies the performance and quality requirements for solar photovoltaic (SPV) water pumping systems. It covers the three main sub-systems: the PV array, the motor-pump set, and the electronic controller, ensuring overall system reliability and water output for applications like irrigation and drinking water.
Specifies the requirements for solar photovoltaic (SPV) pumping systems used for water pumping applications, including components and performance.
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
Practical Notes
! This standard is the basis for the technical specifications of the PM-KUSUM scheme; however, always refer to the latest MNRE guidelines, which may have more stringent requirements.
! Correct system sizing (Annex C) is critical. Undersizing leads to poor performance, while oversizing leads to unnecessary cost.
! Ensure all components have the required test certificates and markings as per the standard to be eligible for subsidies and to ensure quality.
Covers the hydraulic performance testing of the pump, a key component specified within IS 16365.
IEC 61215 SeriesIEC (International Electrotechnical Commission)
MediumCurrent
Terrestrial photovoltaic (PV) modules - Design qualification and type approval
Covers the design and qualification of PV modules, whose compliance is a prerequisite in IS 16365.
IEC 62109-1 & -2IEC (International Electrotechnical Commission)
LowCurrent
Safety of power converters for use in photovoltaic power systems
Addresses the safety of the pump controller/inverter, a component whose requirements are specified in IS 16365.
Key Differences
≠IS 16365 is highly prescriptive, defining minimum water output benchmarks (Liters/day) for specific pump capacities and heads, often tied to Indian government subsidy programs. IEC 62253 provides a framework for testing and reporting performance but does not set minimum benchmarks.
≠The Indian Standard mandates a comprehensive 5-year on-site warranty for the entire system, a commercial requirement not found in the technical scope of IEC standards.
≠IS 16365 specifies minimum PV module efficiency and requires components to have BIS (Bureau of Indian Standards) certification where applicable, whereas IEC standards focus on system performance and reference other IEC/ISO standards.
≠IS 16365 includes specific requirements for mechanical components and markings tailored to Indian operating conditions and regulatory needs, such as details on foundation, mounting structure, and bilingual nameplates.
Key Similarities
≈Both standards adopt a complete system approach, specifying requirements for the PV array, motor-pump set, and controller as an integrated unit.
≈Both IS 16365 and international standards reference ISO 9906 for the hydraulic performance testing of the pump component, ensuring a common basis for evaluating pump efficiency.
≈Both mandate that PV modules used in the system must be qualified according to IEC 61215 (design qualification) and IEC 61730 (safety qualification), ensuring a baseline level of module quality and reliability.
≈Both standards require detailed documentation, including performance curves for the pump, I-V curves for the array, and overall system performance data to be supplied to the user.
Parameter Comparison
Parameter
IS Value
International
Source
System Warranty Mandate
Minimum 5 years on-site warranty for the complete SPV pumping system.
Not specified; warranty is considered a commercial term between buyer and seller.
IEC 62253:2011
Minimum Water Output Benchmark
Specifies minimum water output in Liters/day for a given solar radiation of 7.15 kWh/m²/day at specified heads.
Does not set minimum benchmarks; provides a methodology to measure and report the daily water output.
IEC 62253:2011
Controller Ingress Protection
Minimum IP 54 for outdoor installation of the controller.
No single value mandated; protection level (IP rating) is based on the intended location class defined by the manufacturer.
IEC 62253:2011
PV Module Qualification
Must comply with IS 14286 (based on IEC 61215) and IS/IEC 61730.
The PV array shall consist of PV modules that meet the requirements of the IEC 61215 series and IEC 61730.
IEC 62253:2011
Pump Hydraulic Performance Test
Pump performance to be tested as per IS/ISO 9906.
Pump hydraulic performance tests should be conducted in accordance with ISO 9906.
ISO 9906:2012
Minimum PV Module Efficiency
Specifies minimum module efficiency (e.g., ≥15% for Crystalline Silicon), which is updated by MNRE guidelines.
Does not specify a minimum module efficiency; focuses on overall system output and performance.
IEC 62253:2011
⚠ Verify details from original standards before use
Key Values6
Quick Reference Values
Minimum System Warranty5 years
Minimum PV Module Power Output Warranty25 years (at 80% of initial rated power)
Maximum Power Point Tracking (MPPT) EfficiencyMinimum 98%
PV Module Test Conditions (STC)1000 W/m² irradiance, 25°C cell temperature, AM 1.5 spectrum
Key Formulas
System Sizing Basis (Annex C): Calculation based on required hydraulic energy (flow rate Q and head H), location's average daily solar radiation, and efficiencies of pump, motor, and controller.
Tables & Referenced Sections
Key Tables
Table 1: Minimum Total Dynamic Head Requirements
Table 2: Minimum Water Output Requirements
Table 3: Minimum Module Efficiency and Fill Factor
Table 4: Technical Requirements of Solar PV Pumping Controller
Key Clauses
Clause 5: Requirements for PV Array
Clause 6: Requirements for Motor Pump Set
Clause 7: Requirements for Solar Pumping Controller
Clause 10: Warranty
Annex B: Performance Testing of Complete SPV Water Pumping System