Solar Photovoltaic Water Pumping Systems — Specification

This Indian Standard (Part 1) (First Revision) was adopted by the Bureau of Indian Standards, after the draft finalized by the Pumps Sectional Committee had been approved by the Mechanical Engineering Divisional Council.

This standard was first published in 2018. Substantial changes in the industrial practices, requirements and updation of testing procedures necessitate this revision.

This standard is primarily intended to introduce constructional, design, performance and safety features for solar photovoltaic water pumping systems and also prescribes the methods of measurement of performance and energy efficiency ratings.

Testing of solar photovoltaic water pumping systems is covered in a separate standard and this part shall cover only the specification and requirements of different parts of SPV pumping system. Due to change in the average daily solar radiation from 6.5 kWh/m2 to 7.15 kWh/m2 (as per recommendations of regulatory authorities), the hot and cold profile have been changed accordingly. There is no additional test setup required due to this revision, however, minimum requirement of measuring instruments shall be maintained for testing.

Following important changes are made in this revision:
a) Range of the SPV pumps has been specified in the scope;
b) Typical module mounting structures and tracking systems have been illustrated in this revision;
c) Average daily solar radiation has been changed from 6.5 kWh/m2 to 7.15 kWh/m2;
d) Reference to a separate standard for testing has been mentioned in this revision; and
e) Material for manufacture of SPV pumps has been modified.