project jeddah 01 09 2015
TRANSCRIPT
Project: PV Carpark Jeddah, Saudi Arabia
“The largest transparent PV-Carpark in the world”
Power output approx. 3.432 MW
Partially transparent Almaden
Poly Module P60-260 Wp
Preliminary draft and cost calculation
Almaden Europe GmbH Hanauerstr. 1 - 80992 Munich, Germany
Phone. +49 (89) 2196 3215 – [email protected]
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Contents
............................................................................................................................................................................... 3
1. The Project “Solar Carport” ................................................................................................................................ 4
1.1 Future Industry ............................................................................................................................................. 4
1.2 Location ........................................................................................................................................................ 4
2. Concept of construction ..................................................................................................................................... 5
2.1 Steel supporting structure ............................................................................................................................ 5
2.2 PV Roof Construction .................................................................................................................................... 6
2.3 PV – Modules ................................................................................................................................................ 7
2.4 Made in Dubai: The first world Modules ...................................................................................................... 8
2.5 Specification of the modules ...................................................................................................................... 10
2.6 Inverters ..................................................................................................................................................... 11
3. Carpark system Jeddah..................................................................................................................................... 12
3.1 Arrangement on existing parking area ....................................................................................................... 12
3.2 Schematic representation of PV carport system Jeddah ............................................................................ 12
................................................................................................................................................................................. 12
3.3 Cost and yield Calculation of the PV carport system Jeddah ...................................................................... 13
4. PV Sol calculation of the PV Carport system ..................................................................................................... 15
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kWh/m²
Feb Apr Jun Aug Oct DecTime Period 1. 1. - 31.12.
Irradiation onto Tilted Surface 2.258 kWh/m²
At a glance: Location: The solar carpark is located in the King Abdulaziz University “KAU” campus in Jeddah – Saudi Arabia. This is a large parking area for about 880 cars. Field: The plan is to build and operate photovoltaic systems in form of solar carports with a total size of 125 x 208 m. The total power output is about 3.432 MWp. Production and Consumption: According to the professional photovoltaic analysis software PV SOL 6.0, the annual yield of the PV system is about 5.491 MWh. The purpose of this project is the production of electricity which is used:
To power part of the air conditioners of the university
to power 480 pieces of 15W LED lamps to illuminate the parking areas
to power as many as possible 120W LED street lights on 8m poles Runtime/ Warranty: At the selection of the components and the suppliers, we assumed a runtime of at least 30 years. Shorter standard warranty periods may be extended with a surcharge. Radiation: The average annual sum of global radiation in Jeddah is about 2258 kWh / m² / p.a.
The actual radiation on the south and north to 5° inclined surface was determined with the
professional planning program PV Sol 6.0, which takes shading in consideration; and the actual
radiation is also based on the calculation of annual yield.
Seasonal radiation value: In comparison to a south-south orientation, the chosen north-south
orientation allows a larger consistency during different seasons of a year.
Picture 1: Simulation of the radiation value in Jeddah (in kWh per month)
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1. The Project “Solar Carport”
1.1 Future Industry
Photovoltaic is a proven technology for decades, the systems are largely maintenance-free and extremely reliable. Photovoltaic is a key technology of the 21st century.
1.2 Location
The solar park will be built on a large parking area with 125 x 208 m in the King Abdulaziz University “KAU” campus of Jeddah. As it can be seen in the following picture, the complete area is totally free of shading:
Picture 2: Location of the parking area in Jeddah
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2. Concept of construction
2.1 Steel supporting structure
Acording to the size of this parking area as well as the special requirement, we suggest our
proven steel supporting structure which could cover the whole parking area. Each park space is
about 5.5 meter deep, 3 meter high, and about 6 meter long , the passage way is about 7 meter
width. Between each field there is 1 meter empty space for modules cleaining. The support
profiles are assembeld in the back side in order to facilitate the entering and exiting of the
vehicles.
Picture 3: Steel supporting structure
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2.2 PV Roof Construction
Our individual construction can be assembled to almost size. For this project we use a PV roof segment as the following view from above, each segement has 60 pieces of mouldes, 15.6 KWp power output. For the total area we need 220 segments, the whole power out put is 3.432 MWp.
Picture 4: PV roof constructions
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2.3 PV – Modules
Especially for the hot climate in Jeddah we choose Almaden Desert modules P60-260Wp with
the following outstanding features:
Desert modules work at temperatures up to 125°C where other panels fail
Produce more power at hot temperatures
30 year limited power output warranty Lightweight, 12kg m²
Extreme durability through Hi-Tec hardening processes
Highest wind load> 2400 Pa
Hot and humid climate:
Is a special threat to modules. A chemical reaction with most foils like EVA takes place and as a result citric acid builds up. Consequently, the temperature rises and the acid boils, which destroys the modules over months and years. Almaden established a unique technique in order to oppose these threats and protect the cells.
Desert climate: Desert areas include very high temperatures of up to 85°C in the inside of the module. Temperatures change in fast cycles. In many cases the material doesn‘t withstand these changes over its lifespan of 30 – 50 years. As a result, Almaden modules loose very little power compared to other cells.
Picture 6: Highlights of the glass - glass modules
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2.4 Made in Dubai: The first world Modules
Why are Almaden Modules more suitable than standard Modules?
Standard Modules are not suitable for desert climate Standard PV modules are made for regions with a moderate climate. They usually are made of one sheet of glass at the front side and a plastic sheet on the rear side. All tests e.g. from TUV are based on Standard Test Conditions (STC) which were developed in Germany more than 30 years ago and were therefore based on moderate weather conditions such as those found in Germany. Although the module temperature is above 25° C in most countries around the world, the tests are still based on this low temperature. Other test procedures include hail and snow loads, weather conditions which are rarely found in most countries. The resistance to sandstorms, very high temperatures and other weather conditions found in desert areas are not tested at all. Special Almaden Solar Glass for Desert Modules Almaden – a world market leader of Premium Solar Glass - has been working on special technologies for glass suitable for very rough climates with high temperatures for more than 10 years. This Premium glass is used for both sides of the Almaden desert modules. These ALMADEN DESERT MODULES® are produced in Silicon Oasis® in Dubai and also tested in the new DEWA (Dubai Electricity and Water Authority) test facility. Here in the desert people know best how to produce this superior quality which will be also
tested in the region.
Almaden Desert Modules: Better performance & no failure in damp-heat tests A damp heat test is part of simulating how panels age. This damp-heat test increases the
temperature to 85°C in combination with humidity of 85%. This process simulates 20 years’ time
when the test is performed over 4,000 hours. As seen in the graph standard modules with
plastic back sheet start to fail after 1,000 hours (simulating a period of only 16 years). Almaden
panels can easily survive 4,000 hours in a damp heat test without any problems. This means
that even in desert regions we can guarantee lifetimes of more than 30 years thus creating a
huge financial advantage of more than 30 % (after considering the slightly higher costs).
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Not only are the power benefit and the longer lifetime major advantages of the Desert technology, but also the fact that these panels can be used in regions where other panels simply will not work. Almaden Desert Modules® work at temperatures up to 125°C where other panels fail.
More power when it’s hot
The hotter the cell the less power comes from the panel. Because we know that every watt
counts, we have developed a module and cell that will generate more wattage at the same
nominal power. Normal PV panels have a temperature coefficient of about -0.5%/°C. Our
specially optimized cells improve this coefficient by approx. 15 %, which leads to improved
power generation. The result is shown in the graph below: A power benefit results which will
increase with each degree of heat.
Picture 8: Almaden Desert Modules produce more power when it´s hot
Almaden Desert Module®
Picture 7: Damp-Heat comparison test (85°C/85% humidity)
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2.5 Specification of the modules
The module consists of 60 polycrystalline solar cells. These provide the following data:
The module has the following certifications:
Picture 4: Certifications of the module
Picture 9: P 60 Module
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2.6 Inverters
In order to feed the generated direct current (DC) by the solar modules into the grid of the local utility company or to use them in the won electricity network, the DC must be converted by an inverter into grid-compliant alternating current (AC). Choosing a system specifically designed for large-scale systems is critical to the performance of a plant under different light conditions as well as their availability. Regarding the transformation of the electricity current from DC to AC. For the total power of the project, we suggest to use 2 stations, one on each side of the carpark. This reduces the length of the cables and the less of the power. Below we present you one station of a central inverter system:
Bonfiglioli’s RPS Station “ICON 20 3 ND” provides a new powerful turnkey solution for complete management of a photovoltaic field up to 1.7 kVA. The station is designed for an easy transportation and a quick installation. Thanks to a cabin temperature control system and innovative dust filters, the station is suitable for use in extreme environmental conditions all around the world. To meet a large PV power plant’s demanded capacity; several RPS stations ICON 20 3ND can be combined. The RPS Station ICON 20 3 ND is suited to integrate up to four Bonfiglioli Endurance inverter systems (RPS ND) into 20 ft. high-cube (HQ) container based on ISO construction standard. The RPS Station ICON 20 3 ND is suited to integrate up to three Bonfiglioli Endurance inverter systems (RPS ND) into 20 ft. high-cube (HQ) container based on ISO construction standard. The RPS ND are centralized inverters and working by two systems in Master-Slave configuration. Besides the inverters the stations are equipped with DC cabinets including the fuse protected of connection of PV array, an UPS and an auxiliary transformer. All the devices are anchored and placed in order to guarantee the maximum stability and accessibility of the structure. The RPS station “ICON 20 3ND” requires a medium voltage transformer (two windings on the secondary) and MV switchgear to be installed outside the station.
The benefits at a glance:
Plug & Play solution up to 1.72 MVA professional and flexible Customer
High system efficiency Modular and serviceable system
Powerful and compact wall mounted boilers
Forced air ventilation system with pre-filtering, thus reduced maintenance Global services and support during the whole life-cycle.
Remark: The inverters included in this calculation are intended for reference only. Depending on
the client’s requirements, the inverters can be replaced accordingly.
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3. Carpark system Jeddah
3.1 Arrangement on existing parking area
Picture 5: Arrangement on existing parking area, Jeddah
3.2 Schematic representation of PV carport system Jeddah
Schematic presentation of our PV carpark:
22-Directions Passage w ay (1) (Width: 7 meters, 3.5 meters in Each Direction)
1MAIN ROAD : ENTRANCE TO THE PARKING LOT
52-Directions Passage w ay (4)
42-Directions Passage w ay (3)
32-Directions Passage w ay (2)
82-Directions Passage w ay (7)
72-Directions Passage w ay (6)
62-Directions Passage w ay (5)
MAIN ROAD : ENTRANCE TO THE PARKING LOT
Row
s fro
m 1
-to-1
2
12
2-Directions Passage w ay (11)
11
2-Directions Passage w ay (10)
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2-Directions Passage w ay (9)
92-Directions Passage w ay (8)
Segments Parkingplace Length Width Area
Summe 220 880 125 m 208 m 26,000 m2
Picture 6: Schematic representation of the parking area, Jeddah for 880 parking spaces and 26,000 m²
1
2
1
1
1
0
9
8
7
6
5
4
3
Row
s fro
m 1
-to-1
2
2-Directions Passage w ay (11)
2-Directions Passage w ay (10)
2-Directions Passage w ay (9)
2-Directions Passage w ay (8)
2-Directions Passage w ay (7)
2-Directions Passage w ay (6)
2-Directions Passage w ay (5)
9 10 11 12
2-Directions Passage w ay (4)
2-Directions Passage w ay (3)
2-Directions Passage w ay (2)
1 2 3 4
2-Directions Passage w ay (1) (Width: 7 meters, 3.5 meters in Each Direction)
10 11 12 13 14
3 4 5
1 2 3 4 5 6 7 8 209 15 16 17 18 19
19 201 2 3 4 5 6 7 8
13 14 15 16 17 187 8 9 10 11 121 215 16 17
618 19 209 10 11 12 13 14
19 201 2 3 4 5 6
11 12 13 14 15 165 6 7 8 9 1019 2014 15
1 2 3 4 5 6 7 8
13
10 11
16 17 187 8 9 10 11 1217 18
1 2 3 4 5 6 7 8
137 8 9 10 11 121 2 3 4 5 69
209 10 11 12 13 14
19 2014 15 16 17 1815 16 17 18 19 2012 13 14
2015 16 17 18 19
1914 15 16 17 18137 8 9 10 11 121 2 3 4 5 6
19 201 2 3 4 5 6 7 8
13 14 15 16 17 1815 16 17 18 19 209 10 14
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 811 12 13
7 8 9 10 11 121 2 3 4 5 6209 10 11 12 13 14
19 2014 15 16 17 181315 16 17 18 19
1916 17 18 19
10 11 121 215
3 4 5 6
11 12 13 14 15 16
201 2 3 4 5 6 7 8
13 14 15 16 17 187 8 9
1 2 3 4 5 6
209 10 11 12 13 14
1 2 3 4 5 6 7 8 209 1019 2014 15 16 17 18
3 4 5 6 12
137 8 9 10 11 1217 18 19
19 201 2 3 4 5 6 7 8
13 14 15 16 17 187 8 9 10 111 215 16 17 18 19 209 10 11 12 13 14
1 2 3 4 5 6 7 8137 8 9 10 11 121 2 3 4 5 6
209 10 11 12 13 1419 2014 15 16 17 18
15 16 17 18 19
16 17 18 1915 209 10 11 12 13 141 2 3 4 5 6 7 8
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3.3 Cost and yield Calculation of the PV carport system Jeddah
The table below shows a calculation of the carpark structure as well as the modules and the inverter system for the PV plant in Jeddah. Please note: This is a budget calculation only. The final price will be adjusted according to the results of a detailed technical plan.
Type Unit price USD Discount Price with discount
USD Quantity Sum USD
Steel supporting structure 5909.7 20% 4727.76 220 1,040,107.20
Roof construction 5750 20% 4600 220 1,012,000.00
Sum I 2,052,107.20
Type Unit price USD Discount Price with discount
USD Quantity Sum USD
Desert Modules P 60 -260Wp 220.5 30% 154.35 13200 2,037,420.00
Inverter System (1.74 MWp) 240,000.00 10% 216,000.00 2 432,000.00
Power distribution equipment 360,000.00 10% 324,000.00 1 324,000.00
Monitoring equipment 50,000.00 10% 45,000.00 1 45,000.00
Cables budges and connection boxes
80,000.00 10% 72,000.00 1 72,000.00
Environmental monitors 5,000.00 10% 4,500.00 1 4,500.00
Other and unforeseen expenses
30,000.00 10% 27,000.00 1 27,000.00
Sum II 2,941,920.00
Total 4,994,027.20
The table below shows a calculation of cost / yield of the carports system in Jeddah. For the calculation 13200 pieces of modules P 60-260W with power output 260 Wp are going to be used. The total output for this parking lot is about 3.432 MW.
PV-Carport: Calculation - Costing/Yield 3.432 MW
Power Output each Module 260 Wp
Quantity of the Modules 13200
Total PV-Output 3.432 MW
Taking into account that the total radiation is 2258 kWh / m² p.a. in Jeddah, the result of PV Sol show that the total annual energy yield of the PV Carpark is 5,491,290 kWh. The produced electricity shall be 100% in self-consumption. According to the requirement of the customer, some power output will be used for 480 pieces of 15W LED lights, and also for 120W street lights. Additionally, the generated electricity will be used to supply the air conditioning system of the university.
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For the own consumption, we have assumed an average value of electricity costs in Jeddah ($ 0.18 per kWh). The potential revenues are calculated in the table below.
Global radiation location (Jeddah) 2,258 kWh/m2 p.a.
Annual Yield, PV-Sol, totally 5,491,290 KWh
Revenue from pot. electricity sales
Power consumption (0.18$ /Kwh) 988,432 USD
Total revenue p.a. (potential) 988,432 USD
Remarks:
The annual energy yield depends on environmental conditions.
Experiences show that solar radiation p due to climate change increases by about 0.5% per year.
The calculation is valid for the first year. After that, there is a degradation of approximately 0.15-0.25% p.a. expected, which is, however, more than offset in recent years by the increase in solar radiation.
The calculation includes all of the required hardware except the transformer stations. The installation is not included.
Due to the size of this project, a technical planning is required (not included in this calculation).
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4. PV Sol calculation of the PV Carport system Below is a schematic representation of the parking area with inverters:
Description: The parking area is divided into 12 rows with a total of 13200 modules. The
generated electricity is connected to the distribution network with a total of 5 inverters. These
inverters are connected to an electricity meter which is linked to a monitoring system.
Picture 7: Schematic representation of the parking area with inverters via the PV Sol program
