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Hybrid systems

Islamabad August 2013

Lars Elstrom, Director R&D, Alternative Energy

Tariq Sagheer, Manager Technical , Eltek Pakistan

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WHO WE ARE

> A world leader in high-efficiency power conversion and

electronics

> An industry pioneer with more than 40 years experience

> We help customers save energy and money while

reducing their environmental impact

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LOCAL PRESENCE – GLOBAL REACH

NORWAY

USA

MEXICO

COLOMBIA

PERU

BRAZIL

FINLAND

GERMANY PAKISTAN

INDIA

BANGLADESH

THAILAND

MALAYSIA

PHILIPPINES

AUSTRALIA

SWEDEN

RUSSIA

FRANCE

UK

SPAIN

POLAND

EGYPT

SAUDI

IRAN

DUBAI

SINGAPORE

HONG KONG

CHINA

JAPAN

ROMANIA

ONE BRAND

SALES IN MORE THAN 100 COUNTRIES

OFFICES IN 30 COUNTRIES

2400 EMPLOYEES, 200 IN PAKISTAN

KOREA

ARGENTINA

CANADA

NIGERIA

KENYA

TURKEY

SLOVAKIA

INDIA

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GLOBAL INSTALLED BASE

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GLOBAL INSTALLED BASE, 4000+

NORWAY

USA

NIGERIA

CAMEROUN

BRAZIL

MONGOLIA

GREECE PAKISTAN

INDIA

BANGLADESH

THAILAND

MALAYSIA

PHILIPPINES

PAPA NEW GUINEA

FRANCE CZECH

EGYPT

IRAN

SINGAPORE

CAMBODIA

CHINA

INDONESIA

NEPAL

SRI LANKA

VANUATU

KENYA

CHAD

ANGOLA

ZIMBABWE

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Customer centric solutions - optimization

Energy split, after Eltek upgrade

Diesel

PV

0

10

20

30

40

50

60

70

80

90

100

Before After

[%]

Fuel consumtion

Fuel consumtion

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Energy storage

Power core

Energy source

Energy flow Control/monitor

• Designed for telecom

• Modularity for future expansion

• High Efficiency for less losses

• One controller for ease of integration

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MSM - Background

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MSM – Energy analysis, PV contribution

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MSM – Energy analysis

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MSM – Fuel consumption analysis

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ELTEK SYSTEM

Having the right building blocks is important

But optimum sizing and system field performance is the real

challenge.

Eltek have a proven track record of satisfied customers.

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ELTEK HYBRID SYSTEMS

LESSONS LEARNED

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Importance of galvanic Isolation

> The galvanic isolation is achieved with a high frequency

transformer.

> The galvanic isolation serves two purposes

• Di-electric withstand

• Over voltage protection

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EXAMPLE – site hit by lightning

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EXAMPLE – site hit by lightning

After incident

• System operating!

• PV panel, solar chargers and distribution panel,

SPD needed to be replaced,

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Solar Hybrid Green Project 1

FADA

HADJIR ADEED

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Solar Hybrid Green Project 1

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System Total Running Hours Division, 10 weeks

Site Configuration, Site 1 Average Load 888watts Peak load 1900watts DOD 50% Solar 7050watts Diesel Genset 20Kva Before Deployment of Solar Hybrid Solution , Energy split into 8 hours on battery and 16 hours Genset Per day

Solar PV hours, 580

Batteries hours, 787

Generator hours, 48

Solar + Batteries , 276

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System Total Running Hours Division, 6 weeks

Site Configuration, Site 2 Average Load 1147watts Peak load 2161watts DOD 50% Solar 5640watts Diesel Genset 20Kva Before Deployment of Solar Hybrid Solution , Energy split into 6 hours on battery and 18 hours Genset Per day

Solar PV hours, 301

Batteries hours, 443

Generator hours, 52

Solar + Batteries , 183

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Solar Hybrid Green Project 2

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Consumed Power Division (KWH)

Date Solar Grid

Diesel Genset

Battery Load

4-Jun-13 10 0 0 -15 25

5-Jun-13 18 0 27 15 30

6-Jun-13 18 0 17 6 29

Off Grid

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On Grid

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Wind Hybrid Green Project 3

Salient features of site No commercial power

4 Site of USF in PTCL

Peak load of 1.5KW

Eltek Solution 2 x 5 KW Ghre Power Wind Mill

480Ah x 2 Battery Bank

Eltek Power Cabinet + CE+T Inverter

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> Before deploying Wind Hybrid Solution, generator running was 18 hours

per day.

> Per hour diesel consumption is 2.25 Liters at 50% load. (16KVA Gen.)

> After the installation of Wind Hybrid Solution, generator running hour

reduced to 1.4 Hours per day.

> Saving in terms of fuel 1173 Liters Per month.

Wind Hybrid Green Project 3

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> Designed for Telecom

> Modularity for future expansion

> High Efficiency technology ’HE’

> One controller for all functionality

> Fully industrialized production line

> Complete AND COMPACT design

> Site optimization with respect to fuel usage

> Market leader on technology

Eltek Hybrid solution value add

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Remote monitoring

Make sure that the investment in hybrid is paying off!

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END OF PRESENTATION

THANK YOU