Project Report on

Water Pumping System using Solar PV System

Submitted in Partial Fulfillment of the Requirements for the Award of the

Certificate

BACHELOR OF TECHNOLOGY
In
ELECTRICAL AND ELECTRONICS
ENGINEERING

Submitted by
G.Navya Sree (N200217)
G.Padmaja (N200363)
M.Shaik Athiya Firdose (N201123)
V.Sowjanya(N200849)

Under the Esteemed Guidance of

Mr.T Muthu Kumaran

DEPARTMENT OF ELECTRICAL AND ELECTRONICS

ENGINEERING
RAJIV GANDHI UNIVERSITY OF KNOWLEDGE
TECHNOLOGIES A.P
RGUKT-NUZVID
May 15-June 15;2025
 TITLE: Design and Implementation of solar photovoltaic water pumping system
for small scale agriculture irrigation.

OBJECTIVE: To design an effective and cost-efficient solar powered water pump-

ing system that meets the daily irrigation needs of a 8 acre agricultural farm using
renewable solar energy.

COMPONENTS DETAILS

Table 1: Application Parameters and Component Specifications

Application Parameters Component Specifications
Application: Irrigation for 8-acre 1. Solar Panel: 415W × 28, Mono
farm PERC
Daily Water Requirement: 40,000 2. Pump (Motor): 10.7 HP, sub-
liters/day mersible, 8kW
Source: Borewell or open well 3. Voltage range of Controller:
575–850 V DC input
Irrigation Method: Pipe irrigation 4. Inverter: MPPT AC inverter,
8000W, efficiency 98%
Operation Mode: Automatic based 5. Tank: 50000-liter overhead tank
on tank level
Location: Ipur, Palnadu district, AP, 6. Piping: 54 mm PE50 pipe
India

SYSTEM DESIGN: The system is designed to irrigate 8 acres of agricultural land

with a daily requirement of 40,000 liters. A submersible pump rated at 10.7 HP (8 kW)
is used to pump water from a borewell or open well.

Energy and PV Sizing Calculations

1. Daily Water Requirement: Q = 40,000 liters/day = 40 m3 /day

2. Total Dynamic Head (TDH): Assuming an average head of 112meters, H =

108 m
Q×H×g
3. Hydraulic Energy Required per day: Eh = ηm ×3600
Where:

• Q = 40 m3 /day

• H = 112 m (assumed)

• g = 9.81 m/s2

• ηm = motor + pump efficiency (assume 65% or 0.65)

Eh = 40×112×9.81
0.65×3600
= 18.78 kW h/day(approx)
4. Energy Input to Motor: Accounting for system losses and actual motor size (8
kW for 2 hrs/day):
Emotor = 8 kW × 2 hours/day = 16 kW h/day

5.Solar PV Panel Sizing: The required panel size is calculated using the formula:
Panel Size (kW) = Energy Required (kWh/day) SunlightHours×SystemEf f iciency
Substituting the known values:
Panel Size = 16 5×0.65= 16 =4.92 kW
3.25
Hence, the minimum required solar panel capacity is approximately 4.92 kW.
6. PV Panel Specification:
Each panel = 415W
Number of Panels = 3200
415≈7.7⇒8 panels (minimum)
But system uses 28 panels to:
• Account for seasonal variations, inverter losses, panel aging
• Operate motor at full capacity and support automation
7. Inverter and Efficiency:
• Inverter: MPPT AC inverter, 8000W
• Efficiency: 98%
• Motor Efficiency: Assumed at 85%
8.PV Plant Sizing and PR (Performance Ratio):

PV Plant Sizing
• Minimum Required PV Size
daily energy requirement is calculated based on a motor load of 8 kW operating for
2 hours per day:

Emotor = 8 kW × 2 h = 16 kW h/day

Using the formula:

EnergyRequired(kW h/day)
P anelSize(kW ) =
SunlightHours × SystemEf f iciency
Substituting the values:
16 16
P anelSize = = ≈ 4.92 kW
5 × 0.65 3.25
Thus, the minimum required PV capacity is approximately: 4.92 kW
• Actual Installed PV Size
The system uses 28 PV modules, each rated at 415 W:

InstalledP V Size = 28 × 415 W = 11620 W = 11.62 kW

Reason for Oversizing

The installed capacity is higher than the minimum to:
 – Compensate for seasonal variations in solar irradiance
– Account for system losses (inverter, wiring, temperature, etc.)
– Ensure full operation of the 8 kW motor even in suboptimal conditions

Performance Ratio (PR)

The performance ratio (PR) is a measure of system efficiency after accounting for
losses:

EnergyOutput
PR =
EnergyInputunderST C

From the PVsyst simulation, the PR is approximately:80% This means that 80%
of the theoretically available energy from the sun is converted into usable energy at
the pump after accounting for all losses (like shading, inverter, wiring, etc.).

SIMULATION DESIGN: The simulation section outlines the detailed analysis

and results of the solar water pumping system using PVsyst. The system is designed to
meet the daily irrigation requirement of 40,000 liters with an installed capacity of 11.62
kW system power, utilizing 28 PV modules. The panels are configured at a tilt of 31.5°,
optimized for maximum solar exposure at the given site coordinates in Ipuru, India.
The simulation considers various factors, including shading, temperature losses, and
system efficiency, achieving a total system efficiency of 80 percent.The pump, powered
by an 8 kW AC motor, operates efficiently to deliver water with a specific energy con-
sumption of 18.78kWh/day.
A detailed loss diagram highlights energy losses due to temperature, wiring, and
conversion, resulting in 9,854 kWh of usable energy at the pump. The system successfully
meets 93.8 percent of the annual water demand, with minimal water shortfall. This robust
design ensures reliability, accounting for variations in weather and system performance
over time.
Advanced MPPT inverters ensure optimal energy utilization, while unused energy is
limited to 26.6 percent, primarily when the storage tank reaches capacity. The simulation
validates the system’s capability to support automated irrigation, reducing dependency
on conventional power sources while promoting sustainability.
 PVsyst V8.0.12

PVsyst TRIAL
PVsyst - Simulation report
Pumping PV System

Project: Project pumping design

Variant: New simulation variant
Pumping PV System
System power: 11.62 kWp

PVsyst TRIAL
Īpūru - India

PVsyst TRIAL

PVsyst TRIAL
Author

PVsyst TRIAL
 Project: Project pumping design
Variant: New simulation variant
PVsyst V8.0.12
VC0, Simulation date:
12/06/25 13:55
with V8.0.12

PVsyst TRIAL
Geographical Site
Īpūru
India
Situation
Latitude
Longitude
Altitude
Time zone
Project summary

16.23 °(N)
79.77 °(E)
122 m
UTC+5.5
Project settings
Albedo 0.20

Weather data
Īpūru
Meteonorm 8.2 (2001-2020), Sat=100% - Synthetic

System summary
Pumping PV System Deep Well to Storage

PVsyst TRIAL
Simulation for year no 10

Orientation #1 Near Shadings Water needs

Fixed plane Linear shadings : Fast (table) Yearly constant 40.00 m³/day
Tilt/Azimuth 31.5 / 0 °

System information
PV Array
Nb. of modules 28 units
Pnom total 11.62 kWp

Results summary
Water Energy Efficiencies
Water Pumped 13684 m³ Energy At Pump 9854 kWh System efficiency 58.7 %

PVsyst TRIAL
Specific 107 m³/kWp/bar Specific 0.72 kWh/m³ Pump efficiency 43.1 %
Water needs 14600 m³ Unused (tank full)
Missing Water 6.3 % Unused PV energy 4474 kWh
Unused Fraction 26.6 %

Table of contents
Project and results summary 2
General parameters, PV Array Characteristics, System losses 3
Near shading definition - Iso-shadings diagram 5
Main results 6
Loss diagram 7
Predef. graphs 8

PVsyst TRIAL

PVsyst TRIAL
12/06/25 PVsyst Evaluation mode Page 2/8
 Project: Project pumping design
Variant: New simulation variant
PVsyst V8.0.12
VC0, Simulation date:
12/06/25 13:55
with V8.0.12

PVsyst TRIAL
Pumping PV System

System Requirements
Basic Head
Water needs
Yearly constant
108 meterW

40.00 m³/day
General parameters
Deep Well to Storage

Well characteristics
Static level depth
Specific drawdown
Diameter
-100
-0.40
20
m
m/m³/h
cm
Storage tank
Volume
Diameter
Feeding by top
50.0 m³
3.5 m

Pump level -110 m Feeding altitude 8.0 m

Lower dynamic level -105 m Height (full level) 5.2 m

Hydraulic circuit Orientation #1 Near Shadings

Piping length 160 m Fixed plane Linear shadings : Fast (table)
Pipes PE50 Tilt/Azimuth 31.5 / 0 °
Dint 54 mm

PVsyst TRIAL
PV module
Manufacturer
Model
(Original PVsyst database)
Unit Nom. Power
Generic
STP-415-S-A78-Vfh

415 Wp
PV Array and Pump
Pump
Manufacturer
Model
Generic
Well 8 kW Head 60-160 - FR 10 m3_h
Pump Technology Centrifugal Multistage
Deep well pump
Number of PV modules 28 units Motor AC motor, triphased
Nominal (STC) 11.62 kWp Associated or Integrated converter
Modules 2 string x 14 In series Type MPPT
At operating cond. (50°C) Voltage range 575 - 850 V
Pmpp 10.57 kWp Operating conditions
U mpp 552 V
Head min. Head Nom Head max.

PVsyst TRIAL
I mpp 19 A
60.0 100.0 160.0 m
Total PV power
Corresp. Flowrate 12.79 10.21 6.19 m³/h
Nominal (STC) 12 kWp
Req. power 6300 6300 6300 W
Total 28 modules

Control device
Model Generic device (optimised for the system)
System Configuration MPPT-AC inverter

Pumping system controller

System Operating Control
Generic device params adjusted acc. to the system
Power Conditioning Unit
Type MPPT-AC inverter
Operating conditions

PVsyst TRIAL
Nominal power 8000 W
Power Threshold 80 W
Max. efficiency 98.0 %
EURO efficiency 96.0 %
Minimum MPP Voltage 575 V
Maximum MPP Voltage 850 V
Maximum Array Voltage 850 V
Maximum Input Current 13.0 A

PVsyst TRIAL
12/06/25 PVsyst Evaluation mode Page 3/8
 Project: Project pumping design
Variant: New simulation variant
PVsyst V8.0.12
VC0, Simulation date:
12/06/25 13:55
with V8.0.12

PVsyst TRIAL
Thermal Loss factor
Module temperature according to irradiance
Uc (const)
Uv (wind)

Module mismatch losses

29.0 W/m²K
0.0 W/m²K/m/s
System losses
DC wiring losses
Global array res.
Loss Fraction

Strings Mismatch loss

485 mΩ
1.50 % at STC
Module Quality Loss
Loss Fraction -0.75 %

Module average degradation

Loss Fraction 2.00 % at MPP Loss Fraction 0.05 % Year no 10
Loss factor 0.4 %/year
Imp / Vmp contributions 80% / 20%
Mismatch due to degradation
Imp RMS dispersion 0.4 %/year
Vmp RMS dispersion 0.4 %/year

PVsyst TRIAL
IAM loss factor
Incidence effect (IAM): Fresnel smooth glass, n = 1.526

0° 30° 50° 60° 70° 75° 80° 85° 90°

1.000 0.998 0.981 0.948 0.862 0.776 0.636 0.402 0.000

Spectral correction
FirstSolar model
Precipitable water estimated from relative humidity

Coefficient Set C0 C1 C2 C3 C4 C5
Monocrystalline Si 0.85914 -0.02088 -0.0058853 0.12029 0.026814 -0.001781

PVsyst TRIAL

PVsyst TRIAL

PVsyst TRIAL
12/06/25 PVsyst Evaluation mode Page 4/8
 Project: Project pumping design
Variant: New simulation variant
PVsyst V8.0.12
VC0, Simulation date:
12/06/25 13:55
with V8.0.12

PVsyst TRIAL Near shadings parameter

Perspective of the PV-field and surrounding shading scene

PVsyst TRIAL
Iso-shadings diagram
Orientation #1 - Fixed plane, Tilts/azimuths: 31.5°/ 0°

PVsyst TRIAL

PVsyst TRIAL

PVsyst TRIAL
12/06/25 PVsyst Evaluation mode Page 5/8
 Project: Project pumping design
Variant: New simulation variant
PVsyst V8.0.12
VC0, Simulation date:
12/06/25 13:55
with V8.0.12

PVsyst TRIAL
System Production
Water
Water Pumped
Specific
Water needs
13684
107
14600
m³
m³/kWp/bar
m³
Energy
Energy At Pump
Specific
Main results

Unused (tank full)

9854 kWh
0.72 kWh/m³
Efficiencies
System efficiency
Pump efficiency
58.7 %
43.1 %

Missing Water 6.3 % Unused PV energy 4474 kWh

Unused Fraction 26.6 %

Normalized productions (per installed kWp) Performance Ratio PR

PVsyst TRIAL
Balances and main results

PVsyst TRIAL
GlobEff EArrMPP E_PmpOp ETkFull H_Pump WPumped W_Used W_Miss
kWh/m² kWh kWh kWh meterW m³ m³ m³
January 167.3 1677 856 665 113.4 1226 1240 0.0
February 172.0 1695 771 700 114.2 1125 1120 0.0
March 187.6 1817 868 662 113.3 1240 1240 0.0
April 168.4 1623 850 499 112.6 1200 1200 0.0
May 149.4 1433 892 270 111.7 1202 1203 36.7
June 115.3 1124 784 127 111.4 1040 1039 161.5
July 102.4 1007 731 69 111.4 983 1004 236.3
August 112.5 1109 794 132 111.6 1061 1044 196.2
September 127.2 1252 810 256 112.3 1127 1126 74.1
October 133.1 1316 830 318 112.3 1155 1157 82.6
November 133.2 1326 796 376 112.5 1103 1116 84.2
December 140.5 1413 871 401 112.7 1223 1205 35.1

PVsyst TRIAL
Year 1708.9 16792 9854 4474 112.3 13684 13693 906.7

Legends
GlobEff Effective Global, corr. for IAM and shadings WPumped Water volume pumped
EArrMPP Array virtual energy at MPP W_Used Water drawn by the user
E_PmpOp Pump operating energy W_Miss Missing water
ETkFull Unused energy (tank full)
H_Pump Average total Head at pump

PVsyst TRIAL
12/06/25 PVsyst Evaluation mode Page 6/8
 Project: Project pumping design
Variant: New simulation variant
PVsyst V8.0.12
VC0, Simulation date:
12/06/25 13:55
with V8.0.12

PVsyst TRIAL 1756 kWh/m²

Loss diagram

+0.9%

-0.9%
Global horizontal irradiation
Global incident in coll. plane

Near Shadings: irradiance loss

-2.7% IAM factor on global
1709 kWh/m²
* 61 m² coll. Effective irradiation on collectors

efficiency at STC = 19.02% PV conversion

19912 kWh Array nominal energy (at STC effic.)

-3.8% Module Degradation Loss ( for year #10)

PVsyst TRIAL
-0.7% PV loss due to irradiance level

-8.3% PV loss due to temperature

+0.1% Spectral correction

+0.8% Module quality loss

-3.6% Mismatch loss, modules and strings

(including 1.5% for degradation dispersion)
-1.0% Ohmic wiring loss
16792 kWh Array virtual energy at MPP
-3.0% Converter Loss during operation (efficiency)
-2.2% Converter Loss over nominal conv. power

PVsyst TRIAL
0.0% Converter Loss due to power threshold
0.0% Converter Loss over nominal conv. voltage

-6.1% Converter Loss due to voltage threshold

-4.3% En. under pump producing threshold

14328 kWh Electrical losses (converter, thresholds, overload)

0.0% Energy under drawdown limit

-31.2% Unused energy (tank full)

9854 kWh Operating electrical energy at pump

4246 kWh Pump efficiency = 43.1% Hydraulic energy at pump

PVsyst TRIAL
108 meterW Static head requirement (no flow)

-2.1% Well: drawdown head loss

-1.8% Friction head loss
13684 m³ Aver. Head = 112.3 meterW Water volume pumped
+0.1% Stored water balancebegin/end of interval

Missing: 907 m³ 13693 m³ supplied (93.8% of needs) User's water needs

PVsyst TRIAL
12/06/25 PVsyst Evaluation mode Page 7/8
 Project: Project pumping design
Variant: New simulation variant
PVsyst V8.0.12
VC0, Simulation date:
12/06/25 13:55
with V8.0.12

PVsyst TRIAL Predef. graphs

Daily Input/Output diagram

PVsyst TRIAL

PVsyst TRIAL

PVsyst TRIAL

PVsyst TRIAL
12/06/25 PVsyst Evaluation mode Page 8/8
 Conclusion: The solar-powered water pumping system is a sustainable and efficient
solution tailored to meet the irrigation needs of 40,000 liters daily. With an installed
capacity of 11.62 kW system power and a high-efficiency AC motor-driven pump, the
system operates with a 80 percent overall efficiency. The PV modules are optimally de-
signed and oriented, ensuring reliable performance throughout the year. The simulation
results demonstrate the system’s ability to deliver 93.8 percent of the required water,
with minimal shortfall and energy wastage. The project showcases the potential of re-
newable energy in reducing dependence on conventional power, supporting environmental
conservation, and promoting cost savings over time.