MNRE Proposes Updates to SPV Water Pumping System Under PM KUSUM

In a significant move to enhance the efficiency and performance of solar water pumping systems, the Ministry of New and Renewable Energy (MNRE) has proposed significant updates to the standards and specifications governing Solar Water Pumping Systems and Universal Serial Pump Controllers under the Pradhan Mantri Kisan Urja Suraksha evam Utthaan Mahabhiyan (PM KUSUM) scheme.

It may be mentioned that, initially issued in March 2023, these standards are being periodically revised to reflect the latest innovations and technological advancements in the renewable energy sector. As part of this ongoing initiative, the Ministry has proposed specific updates to two key areas viz. the specifications for Solar Water Pumping Systems employing Positive Displacement Pumps and those for Solar Photovoltaic (SPV) water pumping systems featuring micropumps.

The Ministry is inviting stakeholders to provide suggestions for the updates by 31st October, ensuring that the revised standards align solar water pumping systems with the latest technological advancements and user requirements.

The newly proposed document outlines critical performance, safety features, and testing requirements tailored for Solar Photovoltaic Water Pumping Systems that utilise Positive Displacement Technology. This specification addresses the essential technical standards needed for these systems, which are designed specifically for handling clear, cold water, thereby covering crucial design qualifications as well as performance specifications. These pump sets can be efficiently installed on appropriate bore-wells, significantly enhancing their utility for agricultural applications and other water needs.

As per the notice, manufacturers are mandated to self-certify that all pumps and external motor components coming into contact with water are constructed from stainless steel or high-grade plastic. Given the necessity for solar application pumps to carry a five-year warranty, the use of durable materials resistant to corrosion and degradation is imperative, ensuring that these pumps maintain functionality without requiring replacement throughout this warranty period.

The standards also stipulate that photovoltaic (PV) modules must be mounted on robust metallic structures designed to support the modules' weight and withstand wind velocities of up to 150 km/h. The support structures are required to be constructed from hot-dip galvanised iron with a minimum thickness of 80 microns, ensuring durability and stability across various environmental conditions.

To further enhance the performance of Solar Photovoltaic water pumping systems, the implementation of manual, passive, or auto-tracking systems is strongly recommended. 

This proactive initiative by the Ministry reflects its commitment to improving the standards and specifications of solar water pumping systems, thereby supporting the broader goals of sustainable development and renewable energy utilisation in India.