SOLAR SYSTEM

©Power Architecture Management & Data Center

Banglalink Digital Communications Ltd.

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 SoW – Supply and Installation of Solar System

1. INTRODUCTION
Banglalink is one of the leading telecom operators with distributed footprint in Bangladesh. Bringing
continuous changes, Banglalink has established very efficient policies and processes which is one of its
dominating strengths. To keep services available to their customers we are focusing on energy domain.
As part of continuous improvement and from a better sourcing point of view, Banglalink has decided to
conduct a sourcing process for supply and service of renewable energy systems.

2. KEY FOCUS AREA

Banglalink is highly focused on giving premium service to its customers and customer obsessed. Banglalink
is trying to ensure reliable and efficient power products with optimum cost and premium service.

3. SCOPE OF WORK FOR THE SUPPLIERS

Scope of work under project is the supply, installation and commissioning of solar system and solar energy
(KWH) as per specifications and contract including all materials.

MAJOR DELIVERABLE
Solar System for Data Center:
S/N Type of Service Items Unit Job Description
Month wise solar energy rent is based on energy
meter.
Supply and installation of complete solar system (e2e)
1 Solar Energy rent KWH with require survey, complete civil structure,
accessories and solar mounting structure on roof,
ground, and tower structure, and net-metering to
Gazipur, Mymensingh, Cumilla and other Data Center.
Supply and installation of complete solar system (e2e)
Supply and installation of 30KW solar
2 Job with require survey, complete civil structure,
system at site
accessories and solar mounting structure on roof,
ground, and tower structure, and net-metering to
Supply and installation of 50KW solar Gazipur, Mymensingh, Cumilla and other Data Center.
3 Job
system at site If due to space scarcity or other issues, complete
mentioned capacity will not be feasible to install then
Supply and installation of 80KW solar price for the installed system will be adjusted as per
4 Job ratio according to complete system price.
system at site

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Solar System for RAN Site:

S/N Type of Service Items Unit Job Description

Supply and installation of 3KW solar
1 Job
system at Site
Supply and installation of 4KW solar Supply and installation of complete solar system
2 Job
system at Site with accessories and solar mounting structure on
roof, ground, and tower structure any sites of BL
Supply and installation of 6KW solar network.
3 Job
system at site

Supply and installation of 8KW solar

4 Job
system at site
Supplier shall be visiting the site for installation
5 Site survey Per site plan and design.

RCC casting with 14 mm dia rod (6-8 Pcs

Supply, transport, design and build of RCC base
Rod) using 8 mm dia rod for ring
6 Cft and column.
(specially for lintel, material ratio
Cement: Stone: Sand= 1:2:4).

Supply and installation of GI Pipe dia 4 Supply, transport, and installation of GI Pipe 4-
7 ft
Inch and Thickness 5mm Inch 4mm thickness and MS angle 3-inch 4mm
thickness for any sites of BL
Supply and installation of MS angle 3
8 ft
Inch and Thickness 5mm
Supply of 1x10 RM BYAF DC copper
9 meter
power cable.
Supply of 1x16 RM BYAF DC copper Supply and installation of DC and AC power cable
10 meter
power cable. at Bl network.
Supply of 1x25 RM BYAF DC copper
11 meter
power cable.
Supply of 4x10 rm NYY copper Power
12 meter
cable.
Supply of 4x25 rm NYY copper Power
13 meter
cable.
Supply and installation of Net Metering 3
14 Phase for Different sanctioned loads up Per Site
to 8KW Supply and installation of net meter at BL
Supply and installation of Net Metering 3 network.
15 Phase for Different sanctioned loads Per Site
above 8KW (up to 30KW)
Solar system preventive maintenance at
16 BL network without spare (Panel and Per Site
controller). For rectification purposes
Solar system preventive maintenance at
17 Per Site
BL network without spare (Panel and

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 SoW – Supply and Installation of Solar System

controller) for remote site (Island/Hill

track)}.
Emergency maintenance services at BL
18 network without spare (Panel and Per Site
controller)
Emergency maintenance services at BL EMS at Bl network without spare.
network without spare (Panel and
19 Per Site
controller) for remote site (Island/Hill
track).
4. GENERAL CONDITION (OPEX MODEL)
Solar Energy rent:
a. The supplier is responsible for supplying, installing, and maintaining the solar system at site as per
required capacity. Installation materials - Solar panel, Controller/Inverter, cable with accessories,
Junction box, structure, energy meter, CKT etc.
b. The purchaser will provide the relevant areas for solar system installation.
c. Purchaser will purchase solar energy (KWH). Solar generation will be minimum average
3.8KWH/KWp per day over the year.
d. Supplier will provide the energy meter reading with pictures to purchaser for every month.
e. Contract period could be 10 to 20 Years. If the contract is terminated before the agreed tenure
date, purchaser will be bound to provide the certain percentage of energy generation cost for the
rest of period.
Vendor to provide the required percentage of amount per year for not to continue services.
f. The Energy metering system along with the Solar system shall be tested and maintained by the
supplier through contract tenure.
g. Solar modality will be with net-metering or without net-metering. For net-metering solar system,
supplier will be responsible for all necessary permission and arrangement from concerned
authorities.
h. For solar system installation on roof top of Data Center, supplier need to build additional civil base
to mounting solar structure and avoid any hole/drill on existing roof.
i. If relocation of the solar system is required from any site, Purchaser will bear the full cost of
dismantle, transportation and Re-installation.
j. If any solar system relocation is required, purchaser and supplier will calculate the BoQ, Purchaser
will provide the PO as per purchaser management decision.

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5. GENERAL CONDITION (CAPEX MODEL)

i. Supply and installation of 4KW, 6KW and 12KW, 50KW, and 80KW solar system at Site:
(DC SL. 2-4 RAN SL.1-4)
a. Supply and installation of full set solar system with accessories and solar mounting structure on
roof, ground, and tower at any sites of BL network (including remote site- Island/Hill track).
b. Material supply and installation: Solar panel, Charge Controller/Inverter, junction box, mounting
kit (Angel, Nut-Bolt, Bracket, Clamp etc.), cable, tie, electrical tape, bitumen tape, cable luge,
painting, Grounding (panel, junction box, controller/inverter: Cu 16 RM and aluminum 25 RM),
Circuit breaker, cable connector, Welding, mobilization, labor with any other require necessary
accessories.
c. Cable: Panel to panel series connection and panel to junction box parallel connection cable must
be used based solar capacity design as per OEM recommendation. Cable brands will be BBS, BRB,
SQ, Bizli, Partex or similar brands. Junction box to charge controller/inverter to rectifier/MDB
cable will be provided by Purchaser.
d. Solar panel and inverter brand must be in approved list of SREDA authority.
ii. Site Survey: (RAN SL.5)
The purchaser will provide the probable site list for Solar system installation, and supplier shall visit
the site and provide the plan and design based on site survey. The Supplier will check and confirm the
clear position of south face between the sun and panel. Supplier shall be submitting their proposal
with detailed design for approval to purchaser.
iii. Charging controller and Inverter:
a. Supply, installation, and transportation of 3KW/4KW solar charging controller/different capacity
inverter to any sites of BL network with necessary accessories cable, Nut-Bolt, Bracket, Clamp,
Grounding (Cu 16 RM and Aluminum 25RM), Circuit breaker, cable connector, Welding etc.
b. Charging controller, inverter brand and model must be accepted by Bangladesh power
authorities.
c. Controller/Inverter should have data storage of Last minimum 90 days data (Hourly and Monthly
Energy, Max, and Min voltage (Solar Array and Battery), Max and Min Current (Solar Array and
Battery). Data gateway- USB port, pen drive, laptop. Store system must be inbuilt at controller
and inverter system and data directly collected from controller and inverter by pen drive, laptop.
Gateway USB, RJ45.
d. Display must be available and show all data and settings, and have alarm indicator LED (Red,
Yellow & Green).
e. Controller/ inverter output and input nut-bolt fixing properly and maximum cable size as per
OEM recommendation.
iv. RCC casting: (RAN SL.6)
a. Supplier shall check the RCC casting feasible area at site and propose the plan and submit design
to purchaser for approval.
b. Supply, transport, design and build of RCC base and column with 14 mm dia rod (8-8 Pcs Rod)
using 8 mm dia rod for ring (specially for lintel, material ratio Cement: Stone: Sand= 1:2:4)
c. Supplier shall provide the service, supply, transport for any sites of BL network with necessary
accessories, wood, welding, mobilization, labor, paint, water, monitoring etc (Incl. remote/island
sites)
d. Supplier shall supply the following banded material. Rod brand: SSRM, PHP, Anwar Ispat, Rahim
Steel Mills, GPH Ispat, KSRM, AKS, BSRM, SCRM, RSRM. Cement: MIR cement, Shah Cement,

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Bashundhara Cement, Crown Cement, Holcim, Fresh Cement, Premier Cement, Seven Ringe
Cement, Akij Cement, Confidence Cement. Sand: Sylhet sand or similar sand. Quality stone and
recommended for civil work. Nonbrand/ copy material will not be acceptable.
v. GI Pipe and MS angle: (RAN SL.7-8)
a. Supplier shall supply and installation of GI Pipe 4 Inch and Thickness 5mm and of MS angle 3 Inch
and Thickness 5mm.
b. The supplier shall deliver all necessary accessories welding, paint, nut-bolt, clamp etc.
c. GI Pipe and MS angle brand: Government recommended and approved any Bangladeshi quality
company. Nonbrand/ copy material will not be acceptable.
d. Supplier shall provide the service, supply, transport for any sites of BL network (Including remote
site-Island/Hill track).
vi. Power Cable: (RAN SL.9-13)
a. Supplier supply of following cable: 1X10, 1X16, 1X25 RM BYAF DC copper power cable and 4x10
rm and 4x25 rm NYY cupper Power cable.
b. Supplier shall supply the following branded cable. Cable brands will be BBS, BRB, SQ, Bizli, Partex
or similar brand and origin of DC cable. Nonbrand/ copy material will not be acceptable.
c. Supplier responsible for supply, transportation and install for any sites of BL network (Including
remote site-Island/Hill track).
vii. Net Metering: (RAN SL.14-15)
a. Supplier shall supply and install the net metering of any sites of BL network (Including remote
site (Island/Hill track)).
b. Supplier shall provide the Net meter, necessary accessories (cable, Nut-Bolt, Bracket, Clamp,
Grounding (Aluminum 35 RM), Grounding accessories, Circuit breaker, cable connector etc.)
c. Supplier should follow up, process and approval from power authority. Communication and
necessary document process as per power authority requirement/guideline.
d. Before starting the work, vendor shall visit the site for installation plan and design and submit
to purchase for necessary approval.
viii.Supply of solar panel:
a. Supplier shall deliver the solar panel to any sites of BL network (Including remote site-Island/Hill
track).
b. Solar panel capacity, efficiency, brand, type, size etc. will be as per given technical specification.
c. Supplier shall be solely responsible for all the mobilization, labor, and resources etc.
d. The supplier shall be responsible for any damage broken during the mobilization.
ix. Solar system Preventive and Emergency maintenance: (RAN SL.16-19)
a. Supplier shall be providing the service and maintenance for any sites of BL network. Service
charge will be deferent for normal sites and remote sites (Island/Hill track).
b. Supplier shall be responsible for transport, labor, standard tools usages etc. during the service
and maintenance.
c. Preventive Service and maintenance scope comprise of cleaning and checking of solar panel,
controller, inverter, Solar panel frame, and check the cable and all over connection, panel frame
and structure, functionality of controller, inverter, and net-meter setting and data etc.
d. Supplier shall collect the data (Minimum 90 days) from controller, inverter, and net meter.
e. Supplier Shall provide the pictures (after and before), PAT, 90 days data and complete report to
Purchaser.
f. During the servicing and maintenance if required any accessories, supplier shall provide the nut-
bolt, clamp, cable tie, electrical tape, bitumen tape, cable luge, painting, brass, jute, 4/6 rm DC

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cable for panel-to-panel connection etc. Supplier shall use the stranded tools during the service
and maintenance.
g. Emergency Service and Maintenance as requirement of Purchaser, supplier shall provide service
to to any solar site of BL network. Purchase will issue ticket through Mail/SMS/WhatsApp for
emergency service to Supplier. Supplier will attend at site maintaining SLA and find out the root
cause, create and share report to Purchaser and provide required solution maintaining SLA and
provide necessary support for rectification with require major spares provided by Purchaser and
minor spare parts will be provided by supplier.
h. Major parts are solar panel (Per site 200 to 1500-watt solar panel will be (solar panel size and
quantity depend on existing solar panel size and quantity), controller, inverter, cable, junction
box, Mate (data collect gateway), and Minor parts are cable, CKT and accessories .
x. Supply of solar controller mate and junction box:
a. Supplier shall provide the solar controller mate and junction box for any sites of BL network
(Including remote site-Island/Hill track).
b. Supper shall provide the standard quality of junction box and maintain the Wire leads connecting
the panel to the string and bypass diodes are located inside the junction box. Protection Degree:
IP65 or IP68.
c. Supper shall provide the standard quality of solar controller mate and international certification
(CE, RoHs, SGS, ISO9001).
d. User easily will collect the data from mate (Store Last minimum 90 days data (Hourly and
Monthly Energy, Max, and Min voltage (Solar Array and Battery), Max and Min Current (Solar
Array and Battery) etc. Pote: RJ45, USB. Data is easy to collect by pen drive, laptop.
e. During the installation if required any accessories, supplier shall provide the nut-bolt, clamp,
cable tie, electrical tape, bitumen tape, cable luge, 4/6 rm DC etc.

Vendor Feedback:

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6. TECHNICAL SPECIFICATION
6.1 SOLAR PANEL SPECIFICATION
Item Subcategory Requirement Mandatory Vendor Feedback
Panel Capacity ≥550 Wp Yes
Panel Type Monocrystalline Yes
Mono-facial
Panel Type
/Bi-facial
Design Life ≥20 year Yes
Module Efficiency >21% Yes
STC: Irradiance 1000 W/m2, Module temperature 25℃, AM=1.5
Maximum Power
≥550 W Yes
(Pmax)
Power Tolerance 0 to +5W Yes
Optimum
Operating Voltage ~45V
(Vmp)
Optimum
Operating Current ~13A
SOLAR PANEL

(Imp)
Open Circuit
~50V
Voltage (Voc)
Short Circuit
~14A
Current (Isc)
NMOT: Irradiance 800 W/m2, Module temperature 20℃, AM=1.5
Maximum Power
>410 W
(Pmax)
Optimum
Operating Voltage ~41V
(Vmp)
Optimum
Operating Current ~11A
(Imp)
Open Circuit
~47V
Voltage (Voc)
Short Circuit
~11A
Current (Isc)
Operating
0℃ to 75℃
Temperature
Weight ~35 kg
Dimensions
2200 ×1100 ×35 mm
(L×W×H) Approx.

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Junction Box IP68 rated (3 bypass diodes) Yes

Average Power
< 1% Yes
degradation
Temperature
Coefficient for <-0.35%/℃
Power (Pmax)
Fill Factor >80%
IEC 61215/ IEC 61730/ IEC 61701/
Standard (Product IEC 62716/ IEC 60068/ IEC
& System) 62804/ISO9001/ISO14001/ISO140
65/ISO45001

6.2 SOLAR CHARGE CONTROLLER SPECIFICATION

Controller Brand and
Vendor to specify
Model
Controller origin Vendor to specify
Controller Type MPPT Yes
Capacity 4KW, 3KW Yes
Charge Controller

Nominal Battery
48V Yes
Voltages
Maximum Output
80A (4KW) and 60A (3KW) Yes
Current
Solar Maximum Array 48VDC systems: 4000W and
Yes
STC Nameplate 3000W
PV Open Circuit
Vendor to specify
Voltage (VOC)
Standby Power
Less than 5W
Consumption
Input voltage 70V to 420V
Operating Voltage -42V to -58V
Power Conversion
Min 97%, 48VDC system Yes
Efficiency
Status Display LED

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Controller should have own

data storage of last 120 days of
operation: amp-hours, watt-
hours, time in float, peak
watts, amps, solar array
voltage, maximum battery
Data Logging voltage, minimum battery Yes
voltage and absorb time,
accumulated amp-hours,
and kWh of production, fault
data and option to download
data directly controller via
PC/Pen-drive
Operating
0 to 65°C Yes
Temperature Range
Menu Languages English Yes
Alarm configuration
Yes
system
Dimension (W×D×H) Vendor to specify
Weight Vendor to specify

Installation Mode Wall-mounted, pole-mounted Yes

Three (03) LED (Red, Yellow &

Alarm Indicator Green) alarm indicator are
integrated on controller

Operating Humidity 5% to 95%

Store Last minimum 90 days

data (Hourly and Monthly
Energy, Max, and Min voltage
Data Storage
(Solar Array and Battery), Max
and Min Current (Solar Array
and Battery) etc.

European Standards (CE),

Certificates RoHS compliant
ISO 9001

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6.3A SOLAR INVERTER SPECIFICATION

Item Category Requirement
Inverter Capacity 80 KW 50 KW 30 KW
Input Side
Max. DC Input Power (kW) 120 KW 75 KW 39KW
Max. DC Input Voltage (V) 1100 V
Rated DC Input Voltage (V) 620 V 620 V 585 V
Start-up DC Input Voltage (V) 200 V
MPPT Operating Range (V) 200-950 V
Max. DC Input Current (A) 256 A 130 A 90 A
Max. Short Circuit Current (A) 360 A 200 A 120 A
Number of MPPT/Strings per MPPT 2 per each MPPT
Output Side
Rated Output Power (kW) 80 KW 50 KW 30 KW
Max Apparent Power (VA) 88000 55000 36000 VA
Rated Grid Frequency (Hz) 50/60 Hz
Operating Phase 3/N/PE
Inverter

Rated AC Grid Output Current (A) 230/400Vac

Max. AC Output Current (A) 127 A 80 A 50 A
Output Power Factor 1 (Adjustable ±0.8) (Adjustable ±0.8)
Grid Current THD <3%
OC Injection Current (mA)
Grid Frequency Range 50/60 Hz (45-55Hz/55-65Hz)
Efficiency
Max. Efficiency 98.70% 98.70% 98.20%
Euro Efficiency 98.30% 98.30% 97.60%
MPPT Efficiency 99.90%
Protection
DC Reverse-Polarity Protection Integrated
AC Short Circuit Protection Integrated
AC Output Overcurrent Protection Integrated
AC Overvoltage Protection Integrated
Insulation Resistance Protection Integrated
Ground Fault Monitoring Integrated
Anti-islanding Protection Integrated
Over Temperature Protection Integrated
Surge protection DC Type II and AC Type II
Integrated DC Switch Optional
Remote software upload Optional

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Remote change of operating

Optional
parameters
General Data
Size (mm) WxHxD Vendor to specify
Weight(kg) Vendor to specify
Topology Transformer less
Internal Consumption <2 W @Night
Running Temperature (°C) ~60°C
Ingress Protection IP66
Noise Emission Typical <50DB (A)
Cooling Concept Smart/Intelligent Fan Cooling
Max. Operating Altitude Without
4000 (derating@ > 3000)
Derating
Designed Lifetime Vendor to specify
CEI 0-21, VDE-AR-N 4105, NRS 097, IEC 62116,
Grid Connection Standard IEC 61727, G99, G96, VDE 0126-1-1, RD 1698,
C10-11
Operating Surroundings Humidity 0-100%
IEC/EN 61000-6-1234, IEC/EN 62109-1, IECIEN
Safety EMC/Standard
62109-2
Communication RS485, WiFi/GPRS/LAN
Display OLED & LED
Warranty 5 years
AC Connection Connector
DC Connection H4/MC4(Optional)

6.3B SOLAR INVERTER SPECIFICATION

Category Category Requirement
Inverter Capacity 3 KW 4 KW 6 KW 6 KW 8 KW
Input Side
Max. DC Input Power (kW) 3.9 KW 5.8 KW 8.1 KW 6.2 KW 8.3 KW
Inverter

Max. DC Input Voltage (V) 500 V 1100 V

Rated DC Input Voltage (V) 330 V 600 V
Start-up DC Input Voltage
100 V
(V) 200 V
MPPT Operating Range (V) 80-500 V 160-950 V
Max. DC Input Current (A) 13.5 A 20 A 27 A 22 A
Max. Short Circuit Current
16.9 A 15 A
(A)
Number of MPPT/Strings
1 per each MPPT 2 per each MPPT
per MPPT

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Output Side
Rated Output Power (kW) 3 KW 4 KW 6 KW 6 KW 8 KW
4000 8800
Max Apparent Power (VA) 3000 VA
VA 6000 VA 66000 VA VA
Rated Grid Frequency (Hz) 50/60 Hz
Operating Phase 1/N/PE 3/N/PE
Rated AC Grid Output
230V (180-280V)
Current (A) 230/400Vac
Max. AC Output Current
(A) 13.6 A 19 A 27 A 9.5 A 13.5 A

Output Power Factor Adjustable ±0.8 (Adjustable

±0.8) (Adjustable ±0.9)
Grid Current THD <3% <3%
Grid Frequency Range 50/60 Hz (45-55Hz/55-65Hz)
Efficiency
Max. Efficiency 98.20% 98.40% 98.40% 98.20% 98.60%
Euro Efficiency 97.10% 97.50% 97.50% 97.60% 98.10%
MPPT Efficiency 99.60%
Protection
DC Reverse-Polarity
Integrated
Protection
AC Short Circuit Protection Integrated
AC Output Overcurrent
Integrated
Protection
AC Overvoltage Protection Integrated
Insulation Resistance
Integrated
Protection
Ground Fault Monitoring Integrated
Anti-islanding Protection Integrated
Over Temperature
Integrated
Protection
Surge protection DC Type II and AC Type II
Integrated DC Switch Optional
Remote software upload Optional
Remote change of
Optional
operating parameters
General Data
Size (mm) WxHxD Vendor to specify
Weight(kg) Vendor to specify
Topology Transformerless
Internal Consumption <1 W @Night
Running Temperature (°C) ~60°C

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Ingress Protection IP65

Noise Emission Typical <50DB (A)
Cooling Concept Smart/Intelligent Fan Cooling
Max. Operating Altitude
4000 (derating@ > 3000)
Without Derating
Designed Lifetime Vendor to specify
CEI 0-21, VDE-AR-N 4105, NRS 097, IEC 62116, IEC 61727, G99, G96,
Grid Connection Standard
VDE 0126-1-1, RD 1698, C10-11
Operating Surroundings
0-100%
Humidity
Safety EMC/Standard IEC/EN 61000-6-1234, IEC/EN 62109-1, IECIEN 62109-2
Communication RS485, WiFi/GPRS/LAN
Display OLED & LED
Warranty 5 years
AC Connection Connector
DC Connection H4/MC4(optiona)

7. RECOMMENDED SOLAR BRAND:

Solar
Ran Origi
Solar module charging Origin Inverter Origin
k n
controller
1 Jinko Solar China Outback USA Huawei China
Nedarlan
2 LONGi Solar China Victron SMA Germany
d
3 Trina Solar China Morningstar USA JFY China
China/No
4 JA Solar China Eltak Sungrow China
rway
5 Canadian Solar China Emerson China Evvo USA
Hanwha Q Germ
6 Xintong China
Cells any
7 Risen Energy China Fangpusun China
8 First Solar US
Chint
9 China
(Astronergy)
10 Suntech China
Nedar
11 Victron
land

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8. DELIVERY
Supplier will deliver the complete solar system to BL within a maximum of Eighty (80) calendar days
from the day of PO issuance.
Vendor Feedback:

9. WARRANTY
Items Years
a. Solar controller- Five (05) years (Min.).
b. Inverter- Five (05) years (Min.).
c. Solar panel- Eight (08) years.
All Items d. All civil structure with GI Pipe and MS angles etc.- Eight (08) years
e. All AC, DC and Grounding cable- Five (5) years.
f. Accessories- painting, Grounding, Circuit breaker, SPD, Distribution box,
MDB, Energy meter- Two (2) years.

The Warranty period will start from the date of PAT Acceptance of Solar system on site.
 Supplier will collect damaged/fault items from Banglalink site and after rectification is done, will
re-installation at site.
 During the warranty period the supplier will replace/repair damaged items as per the following
SLA.
 Replaced or repaired item warranty will be same from date of PAT acceptance.
 Warranty is not applicable for stolen case, physical damage and burn case (Banglalink).
 Though solar panel will be broken or damaged by hailstorm, supplier shall replace it under
warranty clause.
 Vendor needs to ensure sufficient facilities and minimum 3% spares for warranty.
 For only DG+Solar site, supplier will provide warranty support within 72hrs.

Vendor Feedback:

10.OPEN BOX INSPECTION (OBI)

 OBI will be conducted by both parties (BL and Suppliers) within Two (2) working days after
delivering the product to Warehouse/Site.
 If any partially/full DEFECTS in terms of quality or quantity found during OBI, vendor is liable to
replace the faulty products or BL will claim the financial adjustment or impose penalty as per
clause.
 Before OBI supplier shall provide order document, LC document, shipment document, product
certification, company profile, and manufacturer company POC information (Company name,

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Email address, Phone number, website information etc.). Supplier shall provide all information
before shipment and shipment document with ship tracking-number after shipment (within 3
days from the shipment confirmation date). Note that, no need to provide any type of supplier
material price information to purchaser.
 If the supplier fails to provide the following information, and provides non-band/ copy product,
low quality, not matching with SoW etc. Purchaser has right the cancel the PO and impose the
penalty as per clause.
Vendor Feedback:

11.ACCEPTANCE:

The requirements related to Acceptance are set out in each case description. However typically Purchaser
will issue a Acceptance on site after successful achievement of the below activities: -

 Supply and installation with commissioning.

 Acceptance of element Capacity/Quality/Quantity as per the Scope of work of the Contract.
 All documentation is delivered.
 If the equipment is put on live without any major snag, the supplier will be considered
eligible for acceptance.
 Acceptance is mandatory with invoice submission.
 Banglalink user team will check the product quality, installation quality and authenticity.
 If product quality and installation quality are not good or up to the mark and non-
branded/copy product, Banglalink user team has the right to reject product / installation
services. vendor is liable to replace the faulty products/ installation service and BL will
claim the financial adjustment or impose penalty as per clause.
Vendor Feedback:

12.PREVENTIVE MANAGEMENT SERVICE (PMS):

Supplier will ensure preventive maintenance service of solar system with three (03) month interval for
two (02) years from date of acceptance for every site. All require spares, services and transportation for
PMS will be free of cost during two (02) years and supplier will be responsible to ensure PMS on due time.
Total PMS quantity will be seven (07), three (03) in 1st year and four (04) in 2nd year.

Vendor Feedback:

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13.LIQUIDATED DAMAGES (LD) & OTHER PENALTY POLICY

For ensuring the performance and seriousness from vendors Liquidity Damage is fixed. It is designed
based on severity, criticality, and intension of the jobs. However, BDCL expects all partners will follow
the compliance policy, CoC and SLA to avoid LD.

Particulars Definition SLA LD

1% of invoice/PO amount (Product

invoice) for each day delay.
(Maximum LD amount will be 10% of
Delivery and Supply of Product Eighty (80) working
the total invoice/PO, Applicable for
installation work at and installation at days from date of PO
80+15=95 days),
site site. issuance
(Maximum LD amount will be 15% of
the total invoice/PO, Applicable for
80+30=110 days)
10% of invoice/PO amount from
Delivered product current Invoice or Pending Invoice or
Deviation of Meet provided
with deviation from Upcoming Invoice/PO or Security
specification in technical
technical deposit, even in case of PO
delivered product specification.
specification cancellation Banglalink has right to
right impose LD.
BDT 500 Tk/day delay/ per site.
Installation Installation
Fifteen (15) sites (Maximum LD amount will be 10% of
capacity capacity per month
the total invoice/PO)
Three (03) days for
Remote site
(Island/Hill track) and
Two (02) days for
BDT 500 Tk/day delay. (Maximum LD
other (Applicable
Site survey Site Survey capacity amount will be 10% of the total
from informed by
invoice/PO)
mail, SMS,
WhatsApp).
Survey capacity-
5sites/day
Warranty for solar
Seven (07) days for
controller, Inverter, After Fault
Remote site BDT 500 Tk/day delay. (Maximum LD
Solar panel, Civil notification-fault
(Island/Hill track), amount will be 15% of the total
structure, GI pipe, item
and Five (05) days for invoice/PO).
MS angle, paint, replacement/repair
other site
cable, cable

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 SoW – Supply and Installation of Solar System

waring/laying, For Solar+DG; Three

Junction box, MDB, (03) days
CKT, grounding etc.
Preventive PMS of Solar BDT 500Tk/day delay. (Maximum LD
Every three (03)
Maintenance system amount will be 10% of the total
month interval
Service (PMS) (Total: 3+4 PMS) invoice/PO)
Vendor will attend
site & provide
solution at site for Five (05) days for
Emergency BDT 500Tk/day delay. (Maximum LD
fault ticket (Time remote site
Maintenance amount will be 10% of the total
count down will be Three (03) days for
Service (EMS) invoice/PO)
started from other site
Mail/SMS/Phone/
Whatsapp)

- All LD amounts will be adjusted from current Invoice or Pending Invoice or Upcoming Invoice or
Security deposit.
- Maximum LD amount will be 20% of the total invoice (Supply).

Vendor Feedback:

14.PO CANCELLATION:

Banglalink has reserved the right to cancel PO, if vendor will not maintain the below SLA,
 Failed to maintain PO delivery lead time.
 Any false information providing or misleading.
 Deviation in supplied item’s specification with agreed specification.
 Failed to maintain BL standard work.

Vendor Feedback:

15. MEDIA OF COMMUNICATION

 Phone;
 E-mail (PR –mail box);
 Fax;
 Social Media

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