SCI Lebanon - Solar PV Systems

Hybrid Solar PV systems for SCI Beirut Country Office & Field Offices in Beirut, Zahle & Tripoli

TableofContent

1. Executive summary

2. Design and sizing

2.1. Design Considerations

2.2. Design methodology

2.3. Sizing

3. Scope of supply

3.1. PV power plant

3.1.1. Photovoltaic panels

3.1.2. Hybrid Inverters

3.1.3. Battery Bank

3.2. Safety Measures

3.2.1. Grounding System

3.2.2. Protection against Electrical Shock

3.2.3. Protection against Over Current

3.2.4. Protection against Over‐Voltage

3.3. Commissioning

3.4. Operation Manual and training

4. Maintenance

4.1. Thermal imaging of PV panels

4.2. Power performance test

5. Project Time Line

5.1. Project Timeline

6. Warranty

7. Country of Origin 8. Annexes

1.Executivesummary

This is a request for Solar hybrid PV systems required for SCI offices in accordance with the following details: ‐ 12.0 Kw Peak for Beirut Country Office located in Pikasso Building – Thawita – Furn El Chebbak (TYPE‐A)

To be Connected to Three Phase Power Supply Network ‐ 6.0 Kw Peak for Beirut Field Office located in Pikasso Building – Thawita – Furn El Chebbak (TYPE‐B)

To be Connected to Three Phase Power Supply Network ‐ 12.0 Kw Peak for Zahle Field Office located in Zahle (TYPE‐C)

To be Connected to Single Phase Power Supply Network ‐ 12.0 Kw Peak for North Field Office located in Koura (TYPE‐C)

To be Connected to Single Phase Power Supply Network

2.Designandsizing

2.1.DesignConsiderations

The offered PV system is designed based on the following parameters

‐ The system size was selected based on critical loads of 18A for an autonomy of 10 hours for

Type‐A & C & 9A for an autonomy of 10 hours for Type‐B

‐ The electrical distribution to Offices Electrical Panel Boards shall be performed by the PV

Supplier including any modification to feed all critical loads from one single point in the

main electrical panel

‐ Elevated Steel Structure with an average height of 2.5 M shall be provided for Zahle Field

Office as the Panels will be installed in the Parking. The structure shall be able to handle the

Snow & Wind Load

‐ All needed trenching to lay the cables between the parking, batteries room and main

electrical room shall be included in this offer

‐ The Batteries & Inverter in ZFO will be located in the Ground Floor near the Solar

Panels

‐ The PV Panels in North Field Office will be installed on the Red Roofing. The batteries

& Inverter will be installed at Roof directly under the Solar Panels

‐ The PV Panels in County & Beirut Field Office will be installed on the Flat Roof.

Galvanized Structure shall be provided by the PV Supplier. Installation shall be done

‐

on concrete pads to avoid damaging the existing water proofing system

‐ The Batteries & Inverter in Country & Beirut Field Office will be installed at Roof near

the Solar Panels

‐ The offer must include Surge Protection Devices on DC and AC sides, Lightning Protection

& Grounding Systems for the PV Solar System

2.2.Designmethodology

The system will be grid interactive connected with battery backup system, which will allow many power sources options. The system will import from the grid when loads are being more than the generated from PV and supply surplus electricity to the batteries when PV generates more than the loads, or to the grid with Net Metering System (Where applicable) the batteries can be charged from Grid if PV output is not enough for loads and batteries.

Hybrid Solar PV System is considered with Dual Mode Inverters with Internal Automatic Transfer Switch

2.3.Sizing

The PV system and batteries are sized based on the following:

TYPE A

‐ 18 A critical load (12,000 BTU/HR AC Unit for Server Room, Server, Charging Sockets 12 Laptops & 12 Mobile Phone, 30 Led Lights)

‐ 10 hours’ autonomy

‐ 60% Depth of discharge

TYPE B

‐ 9 A critical load (Charging Sockets 12 Laptops & 12 Mobile Phone, 30 Led Lights)



TYPE C ‐ 18 A critical load (12,000 BTU/HR AC Unit for Server Room, Server, Charging Sockets 12 Laptops & 12

Mobile Phone, 30 Led Lights)



3.Scopeofsupply

The scope of supply shall cover the supply, installation, connection to electrical panel boards, testing,

commissioning, handing over, training & one‐year preventive and corrective maintenance

The Contractor shall perform a detailed engineering site survey to acquire all necessary information for preparation of final design documentation and discuss technical issues with SCI representatives

Contractor shall submit shop drawings for all architectural, civil, electrical and a complete

photovoltaic solar system works, including a single line diagram showing all the components of the PV

system, DC and AC distribution boards, PV Arrays lay out and battery backup systems connections

and cables, wires cross section for all the system to be approved by the Engineer before executing the

work.

Contractor shall submit a detailed material submittal of each component showing the requested

specifications stated at the bill of quantity.

The contractor shall submit the Manufacture testing certificate, country of origin, certified

characteristics, test performance curves, spare parts regular (as recommended by manufacturer ,

maintenance manuals and manufacturer’s warranty for each components of the system.

As‐built drawings and writing setting parameters shall be submitted after handing over the work.

The price includes all builders’ & Civil works, making good and reinstatement including necessary

materials and workmanship as well as removal of unwanted materials to dump sites approved by the

engineer to complete the job successfully.

TYPE A

12.0 kWp Hybrid PV power plant. This PV plant is composed of:

3 Single Phase Hybrid Inverters of 5 KVA rated AC Power each (4000 W Continuous Output

Power at 25 Deg. C). The three Inverters shall be configured for Three Phase Output

28 PV panels of 430 Wp (Higher Capacity Panels are acceptable; the number will be reduced accordingly)

Solar Batteries bank consisted of 48 batteries SOPZS 860 Ah (673 Ah C12)

Electrical components for installation & protection

Electrical components for connection to the Office Panel Board & Critical Loads Arrangement

TYPE B



Power at 25 Deg. C). The three Inverters shall be configured for Three Phase Output





TYPE C



Power at 25 Deg. C) . The two inverter shall work in parallel to achieve a 16 KVA Power Output





3.1.PVpowerplant

3.1.1.Photovoltaicpanels

The PV modules shall be of high efficiency MONO / POLY crystalline PV module with minimum

capacity of 430 Wp. The module efficiency shall be of 20% and has a positive 0 to +3% power

tolerance

The panel shall be equipped with two 4mm2 stranded, sunlight resistant output cables that are

terminated with PV connectors ready for most installations, and a junction box containing bypass

diodes wired in parallel with the PV cell strings. In the case of partial shading, the diodes bypass the

current generated by the non‐shaded cells, thereby limiting module heating and performance losses.

The module shall be certified to withstand 2400PA wind load and 5400PA snow load.

The panels shall have an expected life of more than 25 years, and they must be supplied with a

limited power warranty of 90.0% after 12 years and 80.7% at 25 years, resulting in a panel

degradation factor of less than 1%.

All PV panels shall be grounded with appropriate earth cables and connected to the main

earthing system.

3.1.2.HybridInverters

DC/AC Hybrid type 1‐phase inverter configured to supply three phase Network where needed, Rated DC Voltage: 48V, Grid Input Voltage: 220VAC / 380VAC, Input frequency: 50HZ, Output Voltage: 220VAC / 380VAC, Output Frequency: 50Hz, Pure Sine Wav. with data communication unit with Ethernet connection, (monitoring and controlling unit). The inverter must be suited to any PV module configuration, and depending on the system design and installation proposed and for the future extended also. The DC max power input rating should be equal or more than of the PV modules capacity at standard test condition. The inverter unit shall be suitable for indoor and outdoor installations with IP65. Protections: reverse polarity, short‐circuit, overvoltage, under voltage, over‐discharge, ant hunter. Include (MPPT Charge controller), Remote Control Unit (RC Unit) compatible with inverter rated power with all necessary (automatic transfer control box), interface modules and connections for masters & slaves , electrical cables and data communication unit with Ethernet connection, connectable in parallel and modularly extendable. The Battery Inverter must include the following concepts such as (Ac and DC coupling, High efficiency, intelligent battery management for maximum battery life, charge level calculation, extreme overload capability, and battery temperature sensing and battery current measurements). And connect all DC cables appropriately sized in accordance with the installation requirements and to connect the inverters with PV system designed with all conduits, clamps, trays and cable terminations end which shall be DC plug and socket connectors to have a complete job, the allowable voltage drop for DC cables between inverters and PV system shall be less than 2% while only 1% is accepted at the AC side of the system for a total of 3% in voltage drop for the entire system. The Inverter must be equipped with external current sensor for load management to optimize self‐consumption and, if required, to prevent grid feed. In case of a power outage, the Inverter will continue to supply the critical loads The correct grid code shall be set through the data logger allowing the inverter to comply with the tolerance parameters of Over Voltage, Under Voltage, Over Frequency and Under Frequency

3.1.3.BatteryBank

SOPZS Batteries as per BOQ details, the batteries must provide high‐quality and achieving superior performance, the manufacturing date must be new and not more than 6 months, suitable for every type of applications especially for solar renewable energy, with maximum compatibility – design according to DIN 40736‐1 The price Includes supply, install &connect Battery temp. sensor (BTS) and the following: All necessary DC cables between the batteries together and to the battery fuse box to have a complete operational circuit with all bus bars, conduits, clamps, stainless steel bolts, washers and cable end terminations and all needed materials to complete the job. All DC cables must be sized in accordance with the installation requirements applicable on site, the allowable voltage drop must be less than 2%. Battery Banks rack from the same manufacturer of the batteries with dividers and all needed accessories to finish the job. the rack must be enough to carry all the weight of the required batteries for the system.

3.2.SafetyMeasures

3.2.1.GroundingSystem

All PV modules, inverters, cable trays, support structure and cabinets shall be bonded and connected to

the grounding system.

Along the cable tray, earth bars shall be installed where the ground wires coming from the PV chassis,

structure and cable trays, shall be connected.

From these earth bars, ground wires shall be pulled back into the inverter room where they are

connected to the main earth busbar.

Special grounding accessories shall be used between the structure, the PV chassis and the

copper earth wires to avoid any risk of electrolyte torque when fitting metallic masses for

equipotential bonding.

The offer must include a new earthing system in Zahle & North & connection to the existing

earthing system in Beirut

3.2.2.ProtectionagainstElectricalShock

The supplier shall ensure to provide the best practices according to the international standards

regarding protection against electrical shock at the DC side with systems classified as Class II.

For the AC side the protection shall be done by double insulation for any live conductor and any

earthed or exposed conductive.

3.2.3.ProtectionagainstOverCurrent

The selected inverters shall be supplied with overcurrent protection on the DC side, while on the AC

side the supplier shall install an AC circuit breaker at the output of each inverter and one at the

tapping point for the protection of all the cables and inverters.

3.2.4.ProtectionagainstOver‐Voltage

The supplier shall ensure that the protection level of the PV Plant electrical installations, PV Plant

and PV Plant equipment respect the below important factors:

Electrical isolation material from the equipment

Overvoltage protection devices characteristics

3.3.Commissioning

In order to ensure a quality commissioned system, the supplier shall follow the below procedure:

Step 1: Following mechanical and electrical installation, conduct a short circuit current,

open circuit voltage and insulation resistance tests prior to power up in order to validate

the electrical installation

Step 2: When Step 1 is successfully completed, the supplier shall move to Power up and PV

plant controller commissioning

Step 3: Impp and Vmpp tests shall be performed to guarantee the performance of the

installed system

Step 4: When all the system is tested and ready, the supplier shall proceed with the

handover and employee training

3.4.OperationManualandtraining

Upon system delivery, the supplier shall submit an operation manual including:

General description of the installed PV system

Description of the installed monitoring system explaining how the customer can use it to

collect data

Description of the Online Monitoring platform

Maintenance procedures

Commissioning Test Reports

As built mechanical PV layout

As built string layouts

As built single line diagram

As built wiring diagram

As built main cabinet layout

As built AC combiner

As build bill of materials

Datasheets of all installed components for customer reference.

The supplier shall conduct as well a detailed training on various plant functions to help the

customer manage the PV plant, thus reducing downtime due to bad management

4.Maintenance

As part of the system warranty, the supplier shall provide in addition to the scope mentioned above a

1 year of operation and maintenance (Preventive & Corrective) package excluding cleaning of the panels. The package shall include 2 scheduled visits during the first year from the supplier Engineer to perform the below tests:

4.1.ThermalimagingofPVpanels

The objective of the test is to detect the existence of hotspots on PV panels.

An infrared camera is used to take temperature range pictures of the solar PV system which is

illustrated in a range of colors that represent different values of temperature. This test shows clearly

if certain parts or cells of the module are producing more heat dissipation than other regions. This

could be caused by faulty connections, or malfunctioned cells inside the module. A faulty cell will act

as a resistor in the module and actually consume power instead of producing it. The heat produced

is a byproduct of this malfunction and can be captured by a sensitive infrared camera

4.2.Powerperformancetest

The objective of this test is to check the power performance of the system.

The supplier shall be able to perform the following tests:

Lead resistance null test

Protective earth/ground resistance

Auto Test (VOC, ISC & Insulation resistance)

AC & DC Current Measurement

DC Power Measurement

Temperature for ambient and local

Irradiation values

Tilt and orientation

In the following test, the ISC, VOC, and irradiation values for each string collection will be recorded

during mid noon of a sunny clear day.

5.ProjectTimeLine

5.1.ProjectTimeline

The supplier shall complete & hand over the Solar PV Systems within 10 Weeks upon receipt of

the official Purchase Order

6.Warranty

The Supplier shall provide a warranty period of:

10‐year limited product warranty for the panels

Limited power warranty for the panels 10 years at 91.2% of the minimal rated power output,

25 years at 80.7% of the minimal rated power output

5 years warranty on the inverter & batteries

7.CountryofOriginSolar Panels: European or Chinese (Prime Brands) are approvedInverter & MPPT solar charge controller: Only European Brands are approved Batteries: Only European Brands are approved Note: All Products shall be certified according to International standards and norms

8.AnnexesAnnex‐1: Beirut Country Office ‐ BOQ Annex‐2: Beirut Field Office ‐ BOQ Annex‐3: North Field Office ‐ BOQ Annex‐4: Zahle Field Office ‐ BOQ

Item Description Unit QuantityUnit Rate

USDTotal USD

Remarks

A

Supply, Installation, Testing & Commissioning of Hybrid Solar PV System and facilitate the comprehensive maintenance of the system for the period of One Year form the date of commissioning. Price shall include the supply & installation of all components with all necessary accessories to insure proper operation & performance of the system. Served Area: Beirut Country Office

1Supply of Roof Top Mounting PV Module Mono / Poly Crystalline, 430Wp EachPV Array capacity is 12kWp equivalent to 54 A.

Set 28

2

Supply of Hybrid (EDL/GEN. - SOLAR) Solar Inverter with MPPT Charge Controller. The Inverter Shall be supplied with External Current Sensor, Online Monitoring & remote ControllerInverter Capacity is 5 KVA. The three Inverters shall be configured for Three Phase Output

Set 3

3

SOPZS Batteries 2 V 860 Ah (673 Ah C12)Autonomy of the battery bank at 60% DOD is 10 hours at 18 Amp LoadN.B. Price must Include Battery Rack

Ea 48

4Cable, Cable connector, Earthing kit, Array Junction Box, DC Wiring between panels to control unit, AC Wiring between Inverter & Combiner Box

LS 1.00

5Solar Modules Mounting Structures made from Galvanized Steel Elements including casting of Concrete Curbs / Pads on Roof & Waterproofing Repair; if needed

LS 1.00

6Electrical Connections from/to Beirut Country Office Electrical Panel Board and Connection to Earthing System

LS 1.00

TOTAL AMOUNT EXCLUDING VAT (USD)

VAT (11%)

TOTAL AMOUNT T.T.C (USD)

Save The Children

Project: BCO HYBRID SOLAR PV SYSTEM

ANNEX-1


USDTotal USD

Remarks

A

Supply, Installation, Testing & Commissioning of Hybrid Solar PV System and facilitate the comprehensive maintenance of the system for the period of One Year form the date of commissioning. Price shall include the supply & installation of all components with all necessary accessories to insure proper operation & performance of the system. Served Area: Beirut Field Office


Set 14

2

Supply of Hybrid (EDL/GEN. - SOLAR) Solar Inverter with MPPT Charge Controller. The Inverter Shall be supplied with External Current Sensor, Online Monitoring & remote ControllerInverter Capacity is 3 KVA. The three Inverters shall be configured for Three Phase Output

Set 3

3


Ea 24


LS 1.00

5Solar Modules Mounting Structures made from Galvanized Steel Elements including casting of Concrete Curbs / Pads on Roof & Waterproofing Repair; if needed

LS 1.00

6Electrical Connections from/to Beirut Field Office Electrical Panel Board and connection to Earthing System

LS 1.00


VAT (11%)


Save The Children

Project: BFO HYBRID SOLAR PV SYSTEM

ANNEX-2


USDTotal USD

Remarks

A

Supply, Installation, Testing & Commissioning of Hybrid Solar PV System and facilitate the comprehensive maintenance of the system for the period of One Year form the date of commissioning. Price shall include the supply & installation of all components with all necessary accessories to insure proper operation & performance of the system. Served Area: North Field Office


Set 28

2

Supply of Hybrid (EDL/GEN. - SOLAR) Solar Inverter with MPPT Charge Controller. The Inverter Shall be supplied with External Current Sensor, Online Monitoring & remote ControllerInverter Capacity is 8 KVA. The two inverter shall work in parallel to achieve a 16 KVA Power Output

Set 2

3


Ea 48


LS 1.00

5Solar Modules Mounting Structures made from Galvanized Steel Elements on Red Roofing including proper Waterproofing for all penetration

LS 1.00

6Electrical Connections from/to North Field Office Electrical Panel Board

LS 1.00

7

Earthing & Lightning Protection Systems for the Solar PV System including all necessary civil worksEarthing for PV StructureIndependent earthing system for PV solar system, must be separated of the main earthing system to obtain 2 ohm max resistance.the item includes (all required copper electrodes 15mm2 driven into ground to achive the resistance low than 2 ohm, manholes with iron cover, earth joints, clamps, ducts , conduits and 25 mm2 flexible earthing copper wires and cables from the PV system components to the electrode to complete the system

LS 1.00


VAT (11%)


Save The Children

Project: NFO HYBRID SOLAR PV SYSTEM

ANNEX-3


USDTotal USD

Remarks

A

Supply, Installation, Testing & Commissioning of Hybrid Solar PV System and facilitate the comprehensive maintenance of the system for the period of One Year form the date of commissioning. Price shall include the supply & installation of all components with all necessary accessories to insure proper operation & performance of the system. Served Area: Zahle Field Office


Set 28

2

Supply of Hybrid (EDL/GEN. - SOLAR) Solar Inverter with MPPT Charge Controller. The Inverter Shall be supplied with External Current Sensor, Online Monitoring & remote ControllerInverter Capacity is 8 KVA. The two inverter shall work in parallel to achieve a 16 KVA Power Output

Set 2

3


Ea 48


LS 1.00

5

Solar Modules Mounting Structures made from Galvanized Steel Elements & Scondary Steel Structure made of Black Steel Elements Coated with Epoxy Primer, Intermediate & Top Coat. The Structure shall withstand the Snow & Wind Load. The rate shall include Concrete Pads under Steel Columns

LS 1.00

6Electrical Connections from/to Zahle Field Office Electrical Panel Board

LS 1.00

7

Earthing & Lightning Protection Systems for the Solar PV System including all necessary civil worksEarthing for PV StructureIndependent earthing system for PV solar system, must be separated of the main earthing system to obtain 2 ohm max resistance.the item includes (all required copper electrodes 15mm2 driven into ground to achive the resistance low than 2 ohm, manholes with iron cover, earth joints, clamps, ducts , conduits and 25 mm2 flexible earthing copper wires and cables from the PV system components to the electrode to complete the system

LS 1.00


VAT (11%)


Save The Children

Project: ZFO HYBRID SOLAR PV SYSTEM

ANNEX-4

Documents

SCI Lebanon - Solar PV Systems