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Solar Power System for Telecom

ApplicationsSolar Power System for Telecom

Applications

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KOTAK URJA™ Private Limited, Bangalore is an organization working in Eco-friendly and

Environmentally safe Renewable Energy sector. It is a KOTAK enterprise and group company which are engaged in diverse commercial activities in India and globally in areas of Exports-Imports of Textile Raw materials & Finished Products, Energy Solutions, Engineering Goods, Agricultural Products &

Minerals and Financial and Insurance solutions through various group concerns.

Incorporated: September 10th, 1997, Registration number:08/01/E/00032/PMT/SSI/97-98

Products: Solar Water Heating Systems

Solar Photovoltaic Module, Products and Customized System Applications

Activities: Design, Engineering, Manufacture, Integration, Installation, Turnkey Execution and

After Sales Service / Support in both Photovoltaic and Thermal/ heating systemsOffice:

Registered Office :311, 3rd floor, Lotus House, V. Thakersey Marg, New Marine Lines, Mumbai-400 001 India

Factory and Head Office :378, 10th Cross, IV phase, Peenya Industrial Estate, Bangalore-560 058, India, Tel: + 91 80 2836 3330 (6 lines),

Fax: +91 80 2836 2347,E mail: kotakurja@kotakurja.com, Web: www.kotakurja.com

Telecom Experience:

KOTAK URJA team has successfully executed 2, 3 and 4kW Solar powering system for Telecom at challenging installation sites in Bihar and Orissa, and meeting demanding schedules

The Company

Certification:

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Telecommunications and Security applications are typically located far from the reach of grid

lines. Also, the cost of infrastructure to bring Grid power to site are too high.

Kotak provides customized Solar power systems for such remote location power requirements

Applications:

•VSAT

•WIMAX

•Antennas

•Access points

•RF end points

•Security systems

•Electric fences

•Cellular repeaters

•Laser Transmitters

•Automation control

•Microwave repeaters

•SONET/SDH repeaters

•Remote ATM machines

•Wireless LAN Access

points

•Remote controlled system

Overview

Solar Power for operating Telecom towers will ensure effective Operation and Performance of

‘Base Transceiver stations’, and also help in reduction of Operational cost & CO2 emissions

due to dependency on DG set

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System Configuration

The Solar systems are designed to provide either DC or AC output power, depending on the type

of load. Most Telecom systems operate on 12/24/48V DC. Typical system sizes are 2, 3 & 4kW.

The systems provide sufficient energy for the specific application and store the energy in

maintenance free batteries. Depending on specific requirements, the system can be configured to

store and provide solar energy up to 7 cloudy – non sunshine days.

The system installation is simple and is virtually maintenance free.

•Easy and Safe installation

•Negligible maintenance

•Reliable and durable

•Environmental friendly

•Noise free

•Modular and scaleable

•Independent of other modes of electrical

infrastructure

Advantages of Solar Power system:

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System Schematic & Scope of Activities

• Study and Engineering

Site Specific System engineering, System analysis, Engineering Documentation, etc

• Manufacture and Supply

Manufacture and Quality check of System components and supply

• Installation and Commissioning

Installation and Integration of System components, Commissioning & ensuring compliance to meet the defined specifications

Solar Panel Array

Charge controller

Inverter

Battery Bank (normally part of existing

Telecom system installation)

Telecom Tower

Charge controller charges the Battery

DC

AC Power

Optional:

Invert er provided

in system to

power AC loads

like Air

conditioner etc.

Optional:

Data Logger & Remote

monitoring

Remote monitor ing

Data Logger

DC Power to

Telecom Equipments

Kotak’s Scope of activities:

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Typical Power Consumption Information of Cell tower

Typical Power consumption pattern of a GSM transmission towerTypical Power consumption pattern of a GSM transmission tower

Peak Power consumption for 12 hrs during day

time

Low Power consumption for

12 hrs during Night time

Ref: Ericsson Study PaperRef: Ericsson Study Paper

20 Hrs Backup12 Hrs Backup

15 kW

4 kW

4.8 kW

1.3 kW

Total

Load

25 kW3.5 kW,

220V AC

300 W

220V AC

1 kW

48V DC

Outdoor2

6.7 kW0300 W,

220V AC

1 kW

48V DC

Indoor1

Solar Panel sizing after considering system lossesAir

Conditioner

2.25 Ton

Lighting

Load

BTSSite

type

Typical Solar Power Generation requirement for various configurations

Solar Power can Independently support telecom Instrumentation load

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Optimized System configuration with Solar –DG Hybrid

Charge controller

InverterTelecom Tower

DC

DC

Battery Bank of Telecom Tower

Additional Battery Bank for Solar Backup

DC

AC Power: for

Air-Conditioner &

Lighting Load

DC Power for BTS

Solar Panel

Safety switch

DC Power Supply

DC AC AC

5.0 kW

9.5 kW

Solar Panel

Sizing

700 Ah

900 Ah

Battery

Bank Sizing

Initial cooling load of Air conditioner taken

by DG set. Running load of Air conditioner

powered by Solar System

Additional Battery Bank to be provided

20Startup with DG and

normal running with

Solar Power

Air

conditioner

and Lighting

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Battery Bank part of Tower equipments –

No Additional Battery bank required

20Solar PowerBTS1

RemarksBackup

Hrs

Powered byEquipment

Advantages:

•DG set will still be available to charge the Battery bank in case of emergency for non sunshine days.

Approx. Area required for mounting 15kW Solar Panel: 225 Sq.m

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Typical IRR calculation for 100% Solar systemI N P U T S P r o je c t: 1 4 . 5 k W S o l a r P o w e r S y s t e m f o r T e le c o m S o l a r s y s te m

P o w e r R e v e n u e s

S a v in g s O n D ie s e l G e n e ra t o r P o w e r

( R s /k W h ). 1 6 IN R

P ro je c t c o s t fo r f in a n c in g 3 ,0 0 0 ,0 0 0

A n n u a l P ro d u c t io n (U n i ts ) 2 0 ,3 3 6 In it ia l I n v e s t m e n t 6 0 0 ,0 0 0 2 0 %H o u r s /D a y 5 .5 S h o rt T e rm D e b t L o a n ( a s s u m e d ) 2 ,4 0 0 ,0 0 0 8 0 %

S u n n y D a ys / Y e a r 3 0 0

S h o rt T e rm D e b t I n t e re s t R a te 7 %R e v e n u e f ro m C a rb o n C r e d its S h o rt T e rm D e b t T e r m 5 Y e a rs

T o n s / Y r 2 2

P ric e /t o n n e i n E U R 1 0

IR R 1 2 %

E q u ip m e n t C o s t 3 ,0 0 0 ,0 0 0

P ro je c t C o s t 3 ,0 0 0 ,0 0 0

O & M C o s ts % o f P r o je c t C o s t 0 . 5 0 %

Y e a r 0 Y e a r 1 Y e a r 2 Y e a r 3 Y e a r 4 Y e a r 5

C o s t 0 1 6 . 0 0 1 6 . 0 0 1 6 . 0 0 1 6 . 0 0 1 6 . 0 0

A n n u a l R e v e n u e 0 3 2 5 3 8 0 3 2 5 3 8 0 3 2 5 3 8 0 3 2 5 3 8 0 3 2 5 3 8 0

C a rb o n C re d it 0 1 4 5 2 0 1 4 5 2 0 1 4 5 2 0 1 4 5 2 0 1 4 5 2 0

D e p r e c ia t io n B e n e fit 0 7 9 2 0 0 0 3 9 6 0 0 3 1 6 8 0 2 5 3 4 4 2 0 2 7 5R e v e n u e C F 0 1 1 3 1 9 1 6 3 7 9 5 1 6 3 7 1 5 9 6 3 6 5 2 6 0 3 6 0 1 9 1

P ro je c t C o s t s 3 , 0 0 0 , 0 0 0 0 0 0 0 0

S h o rt T e rm D e b t P & I 0 5 7 0 2 7 5 5 7 0 2 7 5 5 7 0 2 7 5 5 7 0 2 7 5 5 7 0 2 7 5O & M 0 1 5 0 0 0 1 5 0 0 0 1 5 0 0 0 1 5 0 0 0 1 5 0 0 0

E x p e n s e C F 3 , 0 0 0 , 0 0 0 5 8 5 ,2 7 5 5 8 5 , 2 7 5 5 8 5 ,2 7 5 5 8 5 , 2 7 5 5 8 5 , 2 7 5

N e t C F (3 , 0 0 0 , 0 0 0 ) 5 4 6 ,6 4 1 (2 0 5 , 7 5 9 ) (2 1 3 ,6 7 9 ) (2 2 0 , 0 1 5 ) (2 2 5 , 0 8 3 )

Y e a r 6 Y e a r 7 Y e a r 8 Y e a r 9 Y e a r 1 0

C o s t 1 6 . 0 0 1 6 . 0 0 1 6 . 0 0 1 6 . 0 0 1 6 .0 0

A n n u a l R e v e n u e 3 2 5 ,3 8 0 3 2 5 ,3 8 0 3 2 5 ,3 8 0 3 2 5 ,3 8 0 3 2 5 , 3 8 0 C a rb o n C re d it 1 4 , 5 2 0 1 4 ,5 2 0 1 4 , 5 2 0 1 4 , 5 2 0 1 4 , 5 2 0

D e p r e c ia t io n B e n e fit 1 6 , 2 2 0 1 2 ,9 7 6 1 0 , 3 8 1 8 ,3 0 5 6 , 6 4 4R e v e n u e C F 3 5 6 , 1 3 6 3 5 2 ,8 9 2 3 5 0 , 2 9 7 3 4 8 ,2 2 1 3 4 6 , 5 6 0

P ro je c t C o s t s 0 0 0 0 0

S h o rt T e rm D e b t P & I 0 0 0 0 0

O & M 1 5 , 0 0 0 1 5 ,0 0 0 1 5 , 0 0 0 1 5 , 0 0 0 1 5 , 0 0 0

E x p e n s e C F 1 5 , 0 0 0 1 5 ,0 0 0 1 5 , 0 0 0 1 5 , 0 0 0 1 5 , 0 0 0

N e t C F 3 4 1 , 1 3 6 3 3 7 ,8 9 2 3 3 5 , 2 9 7 3 3 3 ,2 2 1 3 3 1 , 5 6 0

These parameters are assumed for Calculation purposes

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Pay - Back Calculation

Size of Solar panels installed 14500 W

Price of System Rs. 3000000

Effective price after depreciation (80% in year 1) Rs. 768000

Savings in DG operation expenses per year

Sunshine hours per day 5.5 Hrs

Useful No. of Days of Solar utilization 300

No. of Units Generated by Solar per year 20336.3 Units

Cost of Fuel Rs. 35 per literSavings on Diesel consumed @ 0.35Ltr/Unit if DG is utilised Rs. 249119

ROI in years: Effective Price / Total savings 3 Years

Typical Pay Back (ROI) calculation for 100% Solar system

Note: This calculation considers 80% Depreciation for Solar Power System in first year

The savings are compared considering Diesel consumption, in absence of Solar

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Kotak Installation Pictures

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Thank you

KOTAK URJA Pvt. Ltd.

Registered Office:

311, 3rd floor, Lotus House, V. Thakersey Marg, New Marine Lines, Mumbai-400 001 India

Factory and Head Office:

378, 10th Cross, IV phase, Peenya Industrial Estate, Bangalore-560 058, India

Tel: + 91 80 2836 3330 (6 lines), Fax: +91 80 2836 2347

E mail: kotakurja@kotakurja.com, Web: www.kotakurja.com