Solar Water Pumping Systems

A solar photovoltaic (SPV) water pumping system consists of a PV array, a DC/AC surface mounted/ submersible/ floating motor pump set, electronics, if any, interconnect cables and an "On-Off" switch. PV Array is mounted on a suitable structure with a provision of tracking. Electronics could include Maximum Power Point Tracker (MPPT), Inverter and Controls/Protections. Storage batteries will not constitute a part of the SPV Water Pumping System.

Components and parts used in the SPV water pumping system including the PV modules, pumps, metallic structures, cables, junction box, switch, etc. should conform to the BIS/ IEC/ international specifications, wherever such specifications are available and applicable.

Following types of motor pump sets could be used in the SPV water pumping systems:

I. Surface mounted DC motor pump-set

II. Submersible DC motor pump set

III. Submersible AC motor pump set

IV. Floating DC motor pump set

V. Any other type of motor pump set after approval from Test Centers of the Ministry.

Solar DC water Pumping Systems

Technical specifications of solar shallow well pumping system

Description Model-I Model-II Model-III
Solar PV array 900Wp 1800Wp 2700Wp
Motor pumpset type Centrifugal DC monoblock Centrifugal DC monoblock Centrifugal DC monoblock
Motor capacity 1HP 2HP 3HP
Operating voltage 60VDC (nominal) 60VDC (nominal) 90VDC (nominal)
SuctionHead 7metres 7metres 7metres
Max.total dynamic head 10metres 15metres 25metres
Module mounting structure MS hotdipped galvanised,threetimes manual tracking facilities MS hotdipped galvanised,three timesmanual trackingfacilities MS hotdipped galvanised,three timesmanual trackingfacilities
Required shadowfree area 30sq.Metres 75sq.Metres 120sq.Metres
WaterOutput* 77,000   litresper day from a total head of10metres 154,000     litres     per dayfromatotalhead of10metres 115,000     litres     per dayfromatotalhead of20metres
*.Water outputfiguresare onaclear sunnyday with three timestrackingofSPVpanel when solar radiationonhorizontal surfaceis: 5.5KWH/sq.m/day

Solar AC Water Pumping Systems

Technical specifications of solar deep well pumping system

Description ModelI Model II Model III Model IV
Solar PV array 1200Wp 1800Wp 3000Wp 4800Wp
Motorpump settype Submersible with electronic controller Submersible with     electronic controller Submersible    with electronic controller Submersible    with electronic controller
Max.      total dynamic head 50Metres 50  metres 80Metres 80Metres
Module mounting structure MS hotdipped galvanised,three timesmanual trackingfacilities MS hotdipped galvanised, three times manual tracking facilities MS hotdipped galvanised,three timesmanual trackingfacilities MS hotdipped galvanised,three timesmanual trackingfacilities
Required shadowfree area 45 Sq.Metres 75sq.Metres 120sq.Metres 200sq.Metres
Water Output* 34,000Litresper day  from a total head  of       30 metres 51,000litresper day fromatotal head      of      30 metres 51,000    litres    per day from     a total headof50metres 82,000    litres    per day from     a total headof50metres
*.Water output figure sareona clear sunnyday with threetimest racking of SPV panel when solar radiation on horizontal surfaceis: 5.5 KWH/sq.m/day