5 Megawatt Solar Power Plant

宁宁宁宁宁宁宁宁宁宁宁 2.48MWp

5MWp PV System

Shanghai Easyhon International Co.,LTD

2015.05

Bilal Nasir


Catalog

Project introduction....................................2

1.1 Location and construction scale..................2

1.2 Geography location...............................2

1.3 Grid tie voltage.................................2

Project site's solar energy resources...................2

System Design...........................................3

3.1 Grid tie solar System theory.....................3

3.2 Roof system main plan............................4

3.3System design.....................................4

3.3.1 Principles..................................4

3.3.2 System confirguration.......................4

3.3.3 System graphic..............................4

3.4 Main accessories.................................6

3.4.1 Solar panels................................6

3.4.2 Grid tie solar inverter.....................7

3.5 Panels bracket...................................8


3.6 Monitor system..................................10

List of items..........................................11

Generation Estimate....................................12


Project introduction

1.1 Location and construction scale

5 M solar plant located on the ground of ****company in

Pakistan, solar system will be installed on the ground.

Photo of geography

The solar system will be installed on the ground of ****

company, totally capacity 5000kw.

1.2 Geography location

location： *******

Latitude： north latitude 6-9 degree

Longitude： east latitude 34-40 degree

1.3 Grid tie voltage

This project will be grid tied with low-voltage 380v, and connect

with*****company’s main distribution room.

Project site's solar energy resources

According to the statistics, the total annual solar radiation

is ****kWh/m2 ， daily average peak sunshine *** hours, solar

radiation per month as following table:

Table 2-1 Abyssinia solar radiation

3


System design

3.1Grid tie solar System theory

Solar modules will transform solar energy to electricity, via

DC combiner box and then into DC power distribution cabinet, grid

tie solar inverter transform DC power to ****v AC power and then

connect to grid.

Grid tie with 380v low-voltage,Table 3-1：

4


Image 3-1 Solar Grid Tie Generation

Image 3-2 Solar Grid Tie Generation

3.2 Roof system main plan

Unable to survey the scene，estimated capacity 1000kwatt;

consist of by 4000pcs 250w poly solar panels, and 50sets gird tie

solar inverter.

3.3System design

3.3.1Principles

The total installed capacity is 1000kwatt.Solar modules will

be installed on the roof of university’s building. Eacg inverter

will be connected to corresponding solar modules, grid tie solar

inverter transform DC power to 380v AC power and then connect to

the distribution room, there are two grid tie point.

3.3.2System confirguration

5


According to the actual sitation of solar module’s arrangement

and Electrical Characteristics, each 20pcs panels will be a

series circuit, and 4 series circuits wil be connected to a grid

tie solar inverter.

3.3.3System graphic

Image 3-7 System wiring diagram

6


Image 3-8 Main Electrical wiring diagram

3.4 Main accessories

3.4.1 Solar panels

Specification of solar modules：

No. Module Unit Value

1 Data Poly 250Wp

1.1 Model TPB TPB156×156-60-P

1.2 Peak power W 250

*1.3 Power tolerance W 0-+5W

1.4 conversion efficiency % 15.3

1.5 Open-circuit voltage V 37.6

1.6 Short-circuit current A 8.83

1.7 Operating Voltage V 30.3

1.8 Operating Current A 8.25

7



1.10 Series resistance Ω 0.5

*1.11 Fill factor % 75%

1.12Power Temperature

Coefficient%/K -0.42

1.13Voltage Temperature

Coefficient%/K -0.32

1.14Current Temperature

Coefficient%/K +0.05

*1.15Operating Temperature

Range ℃-40～+85

1.16 Humidity % 80

*1.17 2 year power reduction % 3.5

1.1810 year power

reduction% 10

1.1925 year power

reduction %20

*1.20 Hail resistance m/s 25mm@23 m/s

*1.21 Wind resistance Pa 2400

*1.22 Loads Pa 5400

1.23 Size mm 1642×992×40

2 Glass Data

2.1 Thickness mm 3.2

2.2 Transmittance % ≥91.6

3 Module Data

3.1 Conversion rate % ≥17.2

3.2 Short-circuit current A 8.64

3.4 Open-circuit voltage mV 626

*3.5Minority carrier

lifetimeμs ≥10

3.6 Oxygen concentration atoms/cm3 ≤8×10E17

3.7 Carbon concentration atoms/cm3 ≤1×10E18

4 EVA Data

4.1 Density g/cm3 0.96

4.2 Crosslinking degree % ≥80

8



4.3 Peel strength to glass N/cm2 ≥60

4.4Peel strength to

backplateN/cm2 ≥40

5 Backplate data

*5.1 Structure type TPE

5.2 Thickness mm 0.368

5.3 Delamination strength N/cm ≥6.0

5.4 WVTR g/ m2d ≤3.0

6 Junction box data

*6.1 Maximum load operatingcurrent A 12

*6.2 Maximum voltage V 1000

6.3 Operationg Temperature ℃ -40～+85

6.4Maximum Operating

Humidity% 80

*6.5 Protection Degree IP65

6.6 Cable Specifications mm 1 X 4,0mm2 ,1000mm

3.4.2 Grid tie solar inverter

Specification of grid tie solar inverter：

9


10


11


3.5 Panels bracket

Roof structure is cast cement，bracket will be installed on

the cement，as image 3-9:

12


Image3-9 Bracket on ground

3.6 Monitor system

Using an independent monitoring system to monitor the power

generation systems, using the IPC for data acquisition, 24-hour

continuous monitoring and recording the operationg of all grid-13


tie inverter , and display by large-screen LCD TV:

Large-screen LCD TV；

Monitoring and recording environment factors——

temperature、solar radiation；

Monitoring system’s operationg

parameter （ voltage 、 current 、 power 、 frequency 、 power

generation、CO2reduction）.

Image 3-10 Monitoring Figure

List of items

Main item：

Table 4-1 Equipment list

No. Item Specification Unit Quantity

PV 1.1 Solar modules 250Wp poly piece 200001.2 bracket Concrete roof backet kW 5000

1.3AC pv combiner box

with ligtingprotection

5 “in” 1 “out” set 50

1.4 Solar grid tieinverter

20KW solar grid tieinverter set 250

1.5 Grid tie cabinet 500KW set 10Monitoring system

2.1 Monitoring system monitoring host, display, monitoring software set 5

14


2.2 Mark meter 0.2s piece 10

2.3 EnvironmentalMonitors set

10

Cable and etc..

3.1Photovoltaicwaterproofconnector

MC4 couple 35000

3.2 DC cable PV 1*4mm² m 680003.3 AC cable ZRC-YJV22-0.6/1KV-3*70mm² m 120003.4 AC cable ZRC-YJV22-0.6/1KV-3*10mm² m 45003.5 Contril cable ZRC-KVVP2-22-500 4*2.5mm² m 1500

3.6 Cable tray Galvanized bridge200*100mm m 1550Galvanized bridge100*50mm m 3000

3.7 Protective hose DN25mm m 5000Lighting protection

5.1 Hot-dip galvanizedflat steel 40*4mm² m 8500

5.2 Groundingcable(yellow green) YJVR-1*4mm² m 8000

5.3 Groundingcable(yellow green) YJVR-1*16mm² m 2500

Generation Estimate

The power generation of first year is 707.85 million

kWh，average power generation in 25 years is 638.2563million kWh。

In 25 years of system’s operating time, the loss of generation

should not exceed 20% of generation of first year，as table 6：

Table 6 25years power generation estimate

Years Power

Generation(Million kWh)

yearActual Power

Generation(million kWh)

1 707.8500 15 637.0652 697.2323 16 627.5090253 687.4710 17 618.72389874 678.5339 18 610.6804885 670.3915 19 603.35232216 663.0172 20 596.7154466

15


7 656.3870 21 590.74829218 650.4795 22 585.43155759 645.2757 23 580.74810510 640.7587 24 576.682868311 636.9142 25 573.222771112 633.7296 26 570.356657213 631.1947 27 568.075230614 629.3011 28 566.371004915 628.0425 29 565.238262916 627.4145 30 564.673024617 626.7871 31 564.108351618 624.9067 32 562.416026519 621.7822 33 559.603946420 617.4297 34 555.686718821 611.8728 35 550.685538322 605.1422 36 544.627997423 597.2754 37 537.547833424 588.3162 38 529.484615925 578.9032 39 521.0128621

25 yearsgeneration 15956.4087 14360.7678

25 yearsaverage

generation638.2563 574.4307

16

5 Megawatt Solar Power Plant

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