This document provides specifications for a solar pumping project in Baladweyne, Somalia. It includes details of the system components, layout, wiring diagram, and performance data. The key components are a PSk2-40 solar pump controller, CS-G200-24/4 surface pump unit, and 144 photovoltaic panels totalling 46,800Wp. The system is designed to pump up to 3,000m3 of water per day from a water source at 1m depth to an irrigation system with a maximum pressure of 12m and flow rate of 499m3/h. Daily and monthly output values are provided based on local weather data.

1. Parameter
Location: , (5° North; 45° East) Water temperature: 25 °C Altitude 182 m
Required daily output: 3,000 m³; Sizing for average month Dirt loss: 5.0 % Motor cable: 50 m
Pipe type (Discharge
side):
- Dynamic pressure
head:
12 m Pipe length (Discharge
side):
-
Pipe type (Suction
side):
plastic, drawn/pressed, new: 0.007 mm Suction head: 1 m Pipe length (Suction side): 10 m
Products Quantity Details
PSk2-40 CS-G200-24/4 1 pc. Surface pump system including controller with DataModule, motor and pump end
JA325P-72 144 pc. 46,800 Wp; 18 x 8 modules; 15 ° tilted
Motor cable 50 m 16 mm² 3-phase cable for power and 1-phase cable for ground
Pipeline (Suction side) 10 m 225 mm (inner diameter) Pipeline
Accessories 1 set Water Sensor, Float Switch, Surge Protector, 2x PV Disconnect 1000-40-5, PV Combiner 1000-
125-4, PV Protect 1000-125, SmartPSUk2, SmartStart
Daily output in average month 3,690 m³
Daily values Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Av.
Output [m³]
Energy [kWh] 267 279 265 225 210 192 188 213 244 221 237 257 233
Irradiation [kWh/m²] 6.7 7.1 6.8 5.7 5.3 4.8 4.7 5.4 6.2 5.5 5.9 6.4 5.9
Rainfall [mm] 0.033 0.033 0.33 2.4 2.7 0.37 0 0.033 0.40 2.7 1.3 0.20 0.87
Ambient temp. [°C] 28 28 29 29 29 28 28 28 28 28 27 27 28
Hourly values 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00
Output [m³/h]
Energy [kWh] 0.060 7.3 15 22 27 30 31 30 27 22 15 7.0 0.058
Irradiation [kWh/m²] 0.001 0.17 0.36 0.54 0.69 0.77 0.80 0.77 0.69 0.54 0.36 0.17 0.001
Ambient temp. [°C] 23 23 24 26 28 30 32 33 33 33 33 32 32
SunSwitch setting in PumpScanner min. 150 W/m²
Created by LORENTZ COMPASS 3.1.0.134
All specifications and information are given with good intent, errors are possible and products may be subject to change
without notice.
1/5
Mogadishu
Somalia
www.solargentechnologies.
Abubakar Aidarus
Tel: +252 616 100 174/+252 618 515
416
Fax:
abubakar@solargentechnologies.co
SOLARGEN TECHNOLOGIES LTD
Wednesday, July 31, 2019
Baladweyne Irrigation System
Solar pumping project

2. System characteristic
Min. 800 W/m², 20 °C Max./STC*
PV generator Cell temperature [°C] 46 25
Temperature loss [%] 8.8 -
Dirt loss [%] 5.0 -
Pmax [Wp] 32,450 46,800
Vmp [V] 614 673
Imp [A] 53 70
Voc [V] 760 835
Isc [A] 54 70
Pout [W] 31,500 -
Vout [V] 645 -
Iout [A] 49 -
Motor cable Power loss [%] 0.69 1.6 1.6
Pump systems Motor power [W] 6,180 30,750 30,750
Motor voltage [V AC] 258 380 380
Motor current [A] 16 55 55
Motor speed [rpm] 1,010 1,505 1,505
Frequency [Hz] 34 51 51
Flow rate [m³/h] 11 481 481
Efficiency [%] 5.8 57 67
Friction loss suction side [m] 0.001 1.0 1.0
NPSH [m] 2.8 7.23 7.23
*STC: Standard test conditions for photovoltaic modules, 1000 W/m² solar iradiance, 25 °C cell temperature
Created by LORENTZ COMPASS 3.1.0.134
All specifications and information are given with good intent, errors are possible and products may be subject to change
without notice.
2/5
Mogadishu
Somalia
www.solargentechnologies.
Abubakar Aidarus
Tel: +252 616 100 174/+252 618 515
416
Fax:
abubakar@solargentechnologies.co
SOLARGEN TECHNOLOGIES LTD
Wednesday, July 31, 2019
Baladweyne Irrigation System
Solar pumping project

3. Wiring diagram
Created by LORENTZ COMPASS 3.1.0.134
All specifications and information are given with good intent, errors are possible and products may be subject to change
without notice.
3/5
Mogadishu
Somalia
www.solargentechnologies.
Abubakar Aidarus
Tel: +252 616 100 174/+252 618 515
416
Fax:
abubakar@solargentechnologies.co
SOLARGEN TECHNOLOGIES LTD
Wednesday, July 31, 2019
Baladweyne Irrigation System
Solar pumping project

4. System Layout
1: PSk2 Controller
2: Surface Pump
3: Pressure Sensor
4: Water Meter
5: Gate Valve
6: Filler
7: Water Sensor
8: Strainer
9: Filter Cage
10: Nonreturn Valve
11: Surge Protector*
12: Grounding Rod
13: Float Switch
14: PV Module for Sun Switch
15: PV Disconnect
16: PV Generator
17: PV Combiner
18: PV Protect
19: Float Switch for Well Probe
*It is recommended to install a Surge Protector at each
controller sensor input.
Created by LORENTZ COMPASS 3.1.0.134
All specifications and information are given with good intent, errors are possible and products may be subject to change
without notice.
4/5
Mogadishu
Somalia
www.solargentechnologies.
Abubakar Aidarus
Tel: +252 616 100 174/+252 618 515
416
Fax:
abubakar@solargentechnologies.co
SOLARGEN TECHNOLOGIES LTD
Wednesday, July 31, 2019
Baladweyne Irrigation System
Solar pumping project

5. Sizing Layout
P (Pressure head): Vertical height from the pump outlet to the highest point of delivery.
S (Suction head): Vertical height from the water level to the pump inlet where the water level is below the pump inlet.
B (Drawdown): Lowering of water level depending on flow rate and recovery rate of the reservoir.
D1 (Pipeline inner diameter
(Suction side))
D2 (Pipeline inner diameter
(Discharge side))
L1 (Pipe length (Suction
side)):
Pipe length from the water level to the pump inlet. Elbows and other fittings must be added as an equivalent
length of pipeline (the losses of a 90° long radius elbow and of a check valve are already included in the
calculation).
L2 (Pipe length (Discharge
side)):
Pipe length from the pump outlet to the point of delivery. Elbows and other fittings must be added as an equivalent
length of pipeline.
M (Motor cable): The cable between controller and pump unit.
T (Tilt angle): Angle of the PV generator surface from the horizontal plane.
Created by LORENTZ COMPASS 3.1.0.134
All specifications and information are given with good intent, errors are possible and products may be subject to change
without notice.
5/5
Mogadishu
Somalia
www.solargentechnologies.
Abubakar Aidarus
Tel: +252 616 100 174/+252 618 515
416
Fax:
abubakar@solargentechnologies.co
SOLARGEN TECHNOLOGIES LTD
Wednesday, July 31, 2019
Baladweyne Irrigation System
Solar pumping project

6. Head max. 22 m
Flow rate max. 499 m³/h
Controller PSk2-40
ƒHigh efficiency solar pump controller
ƒHybrid power (solar / grid / generator) support with LORENTZ
SmartSolution
ƒInputs for water meter, pressure sensors, digital switches
ƒSimple configuration with LORENTZ PumpScanner AndroidŒApp
ƒOnboard data logging and system monitoring
ƒInbuilt applications for constant pressure, constant flow and daily
amount
ƒIntegrated Sun Sensor
ƒActive temperature management
ƒIntegrated MPPT (Maximum Power Point Tracking)
Power max. 37 kW
Input voltage max. 850 V
Optimum Vmp** 575 V
Motor current max. 65 A
Efficiency max. 98 %
Ambient temp. -30...50 °C
Enclosure class IP54
Motor AC DRIVE CS-G 30kW/4p
ƒHighly efficient 3-phase AC motor
ƒFrequency: 25...51 Hz
Efficiency max. 86 %
Motor speed 740...1,510 rpm
Power factor 0.86
Insulation class F
Enclosure class IPX4
Pump End PE CS-G200-24/4
ƒPremium materials
ƒCentrifugal pump
Efficiency max. 85 %
Standards
2006/42/EC, 2004/108/EC, 2006/95/EC
IEC/EN 61702:1995, IEC/EN 62253 Ed.1
The logos shown reflect the approvals that have been granted for this product family. Products are ordered and supplied with the approvals specific to the market
requirements.
Pump Unit PUk2-40 CS-G200-24/4 (Motor, Pump End)
Water temperature max. 90 °C****
Suction head acc. to COMPASS sizing
Technical Data
System Overview
**Vmp: MPP-voltage under Standard Test Conditions (STC): 1000 W/m² solar irradiance, 25 °C cell temperature
****Special solutions available for 90 °C, please consult your distributor
BERNT LORENTZ GmbH
Siebenstuecken 24, 24558 Henstedt-Ulzburg,
Germany, Tel +49 (0)4193 8806-700, www.lorentz.de
Created by LORENTZ COMPASS 3.1.0.134
All specifications and information are given with good intent, errors are possible and products may be subject to change without notice.Pictures may differ from actual
products depending on local market requirements and regulations.
Solar Surface Pump System
PSk2-40 CS-G200-24/4

7. NPSH
Pump Chart Vmp* 575 V
*Vmp: MPP-voltage under Standard Test Conditions (STC): 1000 W/m² solar irradiance, 25 °C cell temperature
The NPSH (Net Positive Suction Head) is NOT the operating suction head. To calculate the operating suction head please refer to the
installation manual.
BERNT LORENTZ GmbH
Siebenstuecken 24, 24558 Henstedt-Ulzburg,
Germany, Tel +49 (0)4193 8806-700, www.lorentz.de
Created by LORENTZ COMPASS 3.1.0.134
All specifications and information are given with good intent, errors are possible and products may be subject to change without notice.Pictures may differ from actual
products depending on local market requirements and regulations.
Solar Surface Pump System
PSk2-40 CS-G200-24/4

8. H =
H1 =
H2 =
W1 =
W2 =
D =
D1 =
500 mm
450 mm
421 mm
320 mm
290 mm
9.0 mm
226 mm
Controller
A =
B =
C =
D =
E =
F =
G =
H =
I =
J =
K =
L =
M =
N =
O =
P =
400 mm
310 mm
660 mm
1,000 mm
270 mm
415 mm
278 mm
219 mm
200 mm
266 mm
295 mm
340 mm
22 mm
400 mm
360 mm
24 mm
Pump Unit
Net weight
Controller 18 kg
Pump Unit 492 kg
Motor 240 kg
Pump End 252 kg
Dimensions and Weights
BERNT LORENTZ GmbH
Siebenstuecken 24, 24558 Henstedt-Ulzburg,
Germany, Tel +49 (0)4193 8806-700, www.lorentz.de
Created by LORENTZ COMPASS 3.1.0.134
All specifications and information are given with good intent, errors are possible and products may be subject to change without notice.Pictures may differ from actual
products depending on local market requirements and regulations.
Solar Surface Pump System
PSk2-40 CS-G200-24/4

9. BERNT LORENTZ GmbH
Siebenstuecken 24, 24558 Henstedt-Ulzburg, Germany
Tel +49 (0)4193 8806-700, www.lorentz.de
All specifications and information are given with good intent, errors are possible and products may be subject to change without notice.
Pictures may differ from actual products depending on local market requirements and regulations.
V180904
Water Sensor
Device for Dry Run Protection in Applications with LORENTZ Solar Surface
Pump Systems
The device can be used to detect the water level in the suction side of the pipeline. When the two
electrodes run dry, the LORENTZ Controller will stop the pump and indicates Source Low LED.
ORDER INFORMATION
• Item no.: 19-000001 product name: Water sensor, pipe inst.
• Item no.: 19-000002 product name: SS adapter
• Item no.: 19-000003 product name: Steel adapter
Pipeline adapter must be ordered separately
(available as steel or stainless steel version)
FEATURES
• Reliable dry run protection
• Trouble free operation
TECHNICAL DATA
• Max. operating temperature 70 °C
• Enclosure class: IP54
• Cable length: 4 m
• Wire size: 2x 1.0mm² or AWG 17,
waterproofed
• Mounted in vertical position
• Meets the requirements for CE
DIMENSION/WEIGHT
• Packaging dimensions: 180 x 180 x 80 mm
7.1 x 7.1 x 3.1in
• Total weight: 3.5kg / 7.7lbs
pipeline adapter

10. BERNT LORENTZ GmbH
Siebenstuecken 24, 24558 Henstedt-Ulzburg, Germany
Tel +49 (0)4193 8806-700, www.lorentz.de
All specifications and information are given with good intent, errors are possible and products may be subject to change without notice.
Pictures may differ from actual products depending on local market requirements and regulations.
V180904
Float Switch
Mechanically Activated Device for Water Level Detection in Applications
with LORENTZ Solar Pump Systems
The switch can be used to detect the water level within a tank. When the water level in the tank
reaches the maximum, the LORENTZ Controller will stop the pump and indicates Tank Full LED.
ORDER INFORMATION
• Item no.: 19-000030 product name: Float Switch
FEATURES
• N.O. (normally open) and N.C. (normally closed) function
• Reliable water level detection
• Simple to install
• Trouble free operation
• Not sensitive to rotation
• Corrosion-free
TECHNICAL DATA
• Operating temperature: -10°C to 55°C
• Storage temperature: : -10°C to 55°C
• Enclosure class: IP68
• Cable length: 3m, waterproof
• Wire size: 3x 1.0mm² or AWG 18
• Meets the requirements for CE
DIMENSION/WEIGHT
• Packaging dimensions: 230 x 160 x 55 mm
9.1 x 6.3 x 2.2 in
• Total weight: 0.8 kg / 1.8 lbs

11. BERNT LORENTZ GmbH
Siebenstuecken 24, 24558 Henstedt-Ulzburg, Germany
Tel +49 (0)4193 8806-700, www.lorentz.de
All specifications and information are given with good intent, errors are possible and products may be subject to change without notice.
Pictures may differ from actual products depending on local market requirements and regulations.
V180904
Surge Protector
Device to Protect LORENTZ Pump Accessories from Voltage Spikes
ORDER INFORMATION
• Item no.: 19-000280 product name: Surge Protector
FEATURES
• Reliable surge protection for all
LORENTZ pump accessories
• Can be installed inside the PS Controller
TECHNICAL DATA
• Max. voltage: 14 VDC
• Max current 8/20µs: 500 A
• Enclosure class: IP65
• Ambient temperature: max. 50°C
• Wire size: 2x 1.5mm² or AWG 16
• Meets the requirements for CE
DIMENSION/WEIGHT
• Packing dimensions: 70 x 45 x 20 mm
2.8 x 1.8 x 0.8 in
• Total weight 0.1 kg / 0.2 lbs

12. BERNT LORENTZ GmbH Co. KG
Siebenstuecken 24, 24558 Henstedt-Ulzburg, Germany
Tel +49 (0)4193 8806-700, www.lorentz.de
All specifications and information are given with good intent, errors are possible and products may be subject to change without notice. Pictures may differ from actual products depending on
local market requirements and regulations
V150528
PV Disconnect 1000-40-5
Five string connection box with DC Disconnect Switch
ORDER INFORMATION
 Item no.: 19-000115
 Product name: PV Disconnect 1000-40-5
FEATURES
 Simple and cost effective unit to connect
up to five module strings
 Includes an appropriate DC rated disconnect switch
 Designed for PSk2 / PSk pump systems
 Used as part of a professional system installation
TECHNICAL DATA
 Wiring of up to 5 PV-strings in parallel
 DC rated disconnect switch enclosed
 Enclosure class IP 54
 Meets the requirements for CE
PV Disconnect 1000-40-5
Max. voltage
1,000 V DC (Uoc)
880 V DC (Ump)
Max. current per string 40 A
Max. total current 40 A
Max. no. of strings 5
String cable size 4 - 10mm²
Output cable size 4 - 16mm²
RELATED PRODUCTS
PV Combiner 1000-125-4
 Connection Box for parallel wiring of two or
more PV Disconnect 1000-40-5
 Item no.: 19-000116
PV Protect 1000-125
 Surge protection device for PV systems
 Item no.: 19-000117
DIMENSION/WEIGHT [mm]
Net. Weight: 2,50kg
PG cable glands
(2x PG11 10x M16)

13. BERNT LORENTZ GmbH
Siebenstuecken 24, 24558 Henstedt-Ulzburg, Germany
Tel +49 (0)4193 8806-700, www.lorentz.de
All specifications and information are given with good intent, errors are possible and products may be subject to change without notice. Pictures may differ from actual products depending on
local market requirements and regulations
V180904
PV Combiner 1000-125-4
Connection box for parallel wiring
ORDER INFORMATION
• Item no.: 19-000116
• Product name: PV Combiner 1000-125-4
FEATURES
• Designed for PSk pump systems
• For professional installation of pumping
Systems
TECHNICAL DATA
• Wiring for up to 4 input-strings in parallel
• Combine two or
more PV Disconnect 1000-40-5 units
• Enclosure class IP 54
• Meets the requirements for CE
PV Combiner 1000-125-4
Max. voltage 1,000 V DC
Max. current per string 125 A
Max. total current 125 A
Max. no. of strings 4
String cable size 10 - 35mm²
Output cable size 10 - 35mm²
RELATED PRODUCTS
PV Disconnect 1000-40-5
• Five string connection box with DC Disconnect
Switch
• Item no.: 19-000115
PV Protect 1000-125
• Surge protection device for PV systems
• Item no.: 19-000117
DIMENSION/WEIGHT [mm]
Net. Weight: 2,0kg
PG cable glands
(10x PG16)

14. BERNT LORENTZ GmbH
Siebenstuecken 24, 24558 Henstedt-Ulzburg, Germany
Tel +49 (0)4193 8806-700, www.lorentz.de
All specifications and information are given with good intent, errors are possible and products may be subject to change without notice. Pictures may differ from actual products depending on
local market requirements and regulations
V180904
PV Protect 1000-125
Surge protective device for PV systems
ORDER INFORMATION
• Item no.: 19-000117
• Product name: PV Protect 1000-125
FEATURES
• Provides enhanced level of protection to the PSk
controller from electrical surges (indirect lightning)
• Designed for PSk2 / PSk pump systems
• Used as part of a professional system installation
• Installed on the DC input line close to pump controller
• Requires a reliable ground connection to operate
TECHNICAL DATA
• Connects between PV Generator and Controller
• Enclosure class IP 54
• Meets the requirements for CE
PV Protect 1000-125
Max. voltage 1,000 V DC
Max. current 125 A
Input cable size 10 - 35mm²
Output cable size 10 - 35mm²
Grounding cable size 16 mm²
RELATED PRODUCTS
PV Disconnect 1000-40-5
• Five string DC connection box with DC discon-
nect
• Item no.: 19-000115
PV Combiner 1000-125-4
• Combiner box for parallel wiring of two or
more PV Disconnect 1000-40-5 units
• Item no.: 19-000116
DIMENSION/WEIGHT [mm]
Net. Weight: 1,5kg
PG cable glands
(5x PG16)

15. BERNT LORENTZ GmbH
Siebenstuecken 24, 24558 Henstedt-Ulzburg,
Germany,
Tel +49 (0)4193 8806-700, www.lorentz.de
All specifications and information are given with good intent, errors are possible and products may be subject to change without notice.
Pictures may differ from actual products depending on local market requirements and regulations.
V181030
SmartPSUk2
AC/DC Converter to Supply PSk2 Pump Systems with Power from a
Generator or Grid Supply
ORDER INFORMATION
• Item no.: 19-002585 Product name: SmartPSUk2
FEATURES
• Provides DC power to PSk2 pump controllers from AC and DC
sources
• Blends solar power (DC) with AC power from the grid or generator
• Part of the PSk2 SmartSolution for hybrid powering of water
pumping systems
• Data link to PSk2 for control and monitoring
• Integrated overheat protection and active cooling
SmartSolution OVERVIEW

16. BERNT LORENTZ GmbH
Siebenstuecken 24, 24558 Henstedt-Ulzburg,
Germany,
Tel +49 (0)4193 8806-700, www.lorentz.de
All specifications and information are given with good intent, errors are possible and products may be subject to change without notice.
Pictures may differ from actual products depending on local market requirements and regulations.
V181030
TECHNICAL DATA
• Compatible with PSk2-xx pump controllers (from July 2016)
• 3-Phase AC input
o 380 – 415 V (± 10 %)
o 50 Hz/60 Hz
o max. 38 kW (48 kVA)
• PV max open circuit voltage: 850 V DC
• DC output
o Umax = 850 V DC
o Imax = 70 A
• Enclosure class: IP54, stainless steel powered coated case
• Ambient temperature: -10 to 50°C
PRODUCT CONTENT
The SmartPSUk2 comes with a cable to connect to the PSk2 Controller (1.00 m) and a back plate for
mounting on non-flat surfaces.
STANDARDS
• Meets the requirements for CE
DIMENSION/WEIGHT
• Packing dimensions: 560 x 400 x 340 mm (22.0 x 15.7 x 13.4 in)
• Net weight: 18 kg (39 lbs)

17. BERNT LORENTZ GmbH
Siebenstuecken 24, 24558 Henstedt-Ulzburg, Germany
Tel +49 (0)4193 8806-700, www.lorentz.de
All specifications and information are given with good intent, errors are possible and products may be subject to change without notice.
Pictures may differ from actual products depending on local market requirements and regulations.
V181030
SmartStart
Automatic Remote Diesel Generator Switching Device
The SmartStart can automatically and remotely start and stop diesel generators for hybrid solar
pumping. It has a secondary ancillary output for switching other devices. It connects to the PSk2
Controller and to the remote switch input of the diesel generator.
ORDER INFORMATION
• Item no.: 19-004280 Product name: SmartStart
FEATURES
• Automatically switches on/off diesel engines equipped
with remote start input (NO)
• SmartStart provides power to the PSk2 systems for night time
logic operation such as early morning pump starting
• Battery charging from PSk2 Controller
• Shows system status via LEDs
• Ancillary output for switching other devices
TECHNICAL DATA
• Max. contact rating: 277 V AC / 30 V DC / 3 A
• Enclosure class: IP54
• Nominal cross section for GEN Link cable 1.5 mm²
• Further information is available in the PSk2 manual on partnerNET
PRODUCT CONTENT
The SmartStart comes with a cable to connect to the PSk2 Controller. (1.50 m) The required battery
must be ordered separately. The battery must meet the following requirements:
• Sealed 12 V AGM lead acid battery Min capacity: 7 Ah
DIMENSION/WEIGHT
• Packaging dimensions: L x W x H 270 x 250 x 230 mm (10.6 x 9.8 x 9.1 in)
• Total weight (without battery): 2.8 kg (6.2 lbs)
• Battery case: L x W x H 151 x 70 x 95 mm (5.94 x 2.56 x 3.74 in)