TELECOM SOLAR SOLUTIONSDC POWER SOLUTIONS FOR OFF-GRID AND POOR GRID SITES

THERE IS A SUBSTANTIAL ECONOMIC COST

The Global Energy ChallengeThe global need for energy continues to rise and along with it, so does our dependence on fossil fuels. Being a finite resource and often difficult to acquire, we have seen the price of energy derived from fossil fuels sky-rocket in recent year. Worse still, it is now widely accepted that the CO2 released from burning fossil fuels is having a growing negative environmental effect on our planet.

We all have a shared responsibility to reduce energy usage by being more conscientious and energy efficient. At Eltek Valere we take this responsibility seriously, which is why we are leading the green revolution within the Telecom power industry.

Eltek Valere’s Solution

In 2008, Eltek Valere took a quantum leap forward in terms of energy efficiency with the commercial launch of the Flatpack2 HE (high efficiency) rectifier.

This was the first ever rectifier with an independently certified efficiency of more than 96,4 %. This level then became the industry benchmark; effectively reducing the conversion power loss by a minimum of 50 % compared to the previous level.

Now, by utilizing the HE technology, we have released the Flatpack2 HE Solar Charger; providing full functionality and high efficiency to solar powered telecom sites

The telecom consumption in perspective:

160 Billion kWh per year is more than the >total power demand of countries like Norway or Sweden

It’s enough to power 16 million homes for one >year

The CO2 emissions produced is equal to the >exhaust from 22 million cars during one year

The impact from the Telecom Industry The continuously expanding global telecom industry is a significant and rapidly growing consumer of energy:

Global telecom networks consume more than >1% of the total global energy consumption

This is equivalent to more than 160 Billion >kWh per year

This results in the emission of over 200 Million >tons of CO2

The annual cost to carriers and their custom->ers is more that $20 Billon

Energy is a significant portion of operating expense:> “Power consumption is now one of the top three network operating expenses for carriers” (ABI Research)

Broadband is driving power consumption upwards:> “In 2004, NTT projected it would require 1.5 times its current energy usage to support the wide-spread deployment of always-on broadband connections by 2010” (NTT Group Environmental Protection Activity Report 2004)

THE BENEFITS OF SOLAR POWER

Free Energy from the Sun >Sunlight is a constant, continual power source providing 89 Petawatts (89 x10 15 W) of free power onto the earth’s surface

Renewable Energy> With today’s technology, converting solar energy into usable DC power is consid-ered renewable and a true “green” power source

Replaces Fossil Fuels >Tapping into this boundless energy will help reduce the dependency on fossil fuels.

Environmental Friendly> There are no pollutants or harmful by-products created during the solar conver-sion process.

Long Life> A well installed solar array can have an operation life of between 30 and 40 years.

Short CAPEX payback time >There is virtually no operational or maintenance costs involved in generating solar power. That means CAPEX payback times can be as short as 2 years, de-pending on site.

Financial Incentives> Many regions have renewable energy initiative programs and tax benefits.

Autonomous Solar SolutionThe Flatpack2 HE Solar Solution is the ideal choice for telecom sites that need an autonomous power solu-tion.

Based on HE (High Efficiency) technology, the Eltek Valere Solar Charger maximizes the power trans-fer with a > 96% operating efficiency, combined with an effective MPPT program.

The charger also provides full galvanic isolation be-tween solar panels and the telecom equipment/ bat-teries, thus providing a high level of surge protection and reliability.

Eltek Valere Solar Hybrid Solution Suitable for autonomous operation (solar only) or in conjunction with an AC source ensuring maximum operation and efficiency.

Solar Hybrid SolutionThe Eltek Valere HE Solar Charger is part of the Flat-pack 2 family, thus can be fully integrated with Flat-pack 2 HE rectifiers to provide a complete Solar Hybrid solution.

The complete site is monitored with the Eltek Valere Smartpack controller, which provides remotely moni-tored and controlled, ensuring maximum operation and efficiency.

The Smartpack features also include advance battery monitoring routines, as well as gen-set optimisation programs and considerable data logging options.

Maximize your Solar InvestmentThe energy from sunlight is free, however you should expect to get the maximum power return on your Solar Power investment. Eltek Valere Solar solutions make sure you get the most out of the solar power available by including :

Greater than 96% operat->ing efficiency Based on HE technology, the Solar charger Has the smallest power conversion loss in the market to-day, whilst offering full galvanic isolation.

Maximum Power Point >Tracking The Eltek Valere HE Solar Charger adjusts its in-put to match the changing characteristics of the Solar Panels to ensure near 100% power transfer through-out the day.

Full Monitoring and Con->trol With the fully integrated Smartpack controller, the entire site can be remotely monitored and controlled. Advanced data logging options are also available.

Sun Tracking> By adding on Solar Tracking hardware, your solar panels will track the sun during the day. This option can provide up to 40% more energy than a fixed panel installation.

Solar Hybrid Building Blocks It is the advanced system building blocks that makes theEltek Valere Solar Hybrid solution stand out.

FLATPACK2 HE SOLAR CHARGER

96 %> power conversion efficiency

Advanced Max Power Point Tracking rou->tines

Provides full galvanic isolation>

Wide operating DC input range>

FLATPACK2 HE RECTIFIER

96 % > power conversion efficiency

High power density>

Wide operating AC input range>

Low noise operation>

Wide operating temperature range>

SMARTPACK CONTROLLER

Advanced Battery monitoring >routines

Gen-set optimization programs>

Remote site monitoring and control op->tions

Configurable data logging options>

Password protection and site cloning fea->tures

Save OPEX via Gen-set Optimization Running a Gen-set continuously to keep batteries charged is expensive. Not only is the Gen-set constantly using diesel, it will probably be running on a low capacity load, thus being very inefficient per litre.

In addition, there are other OPEX cost factor to con-sider, such as :

Cost to re-supply the fuel>

More frequent Gen-set maintenance and re->placement program

Possibility of fuel theft>

And of course, the continuous negative environmental impact that running diesel Gen-sets cause.

Standard Efficiency to Constant LoadEV Hybrid to Optimized Gen-set

Batteries instead of Gen-SetYou can reduce your OPEX cost and your environmental impact by reducing how long you run your Gen-set and instead, use some of the stored energy in the batteries.

One of the standard features in the Eltek Valere Smart-pack controller is the option for the user to define when the Gen-set should be running. This can be based on system float voltage or time of day (or month).

60 % less exhaust emissionNot only do you get a fuel saving by only running the Gen-set when the batteries need charging, but you also will be running the gen-set at a higher load, thus getting more usable power per litre.

And with the possibility of reducing the Gen-set oper-ating time by up to 60%, that would mean 60% less emissions exhausted into the environment.

Gen-Set On / Off

Gen-Set On

Gen-Set Off

Batteries

DC Load

Eltek Valere has a long history as a leading global provider of Telecom Power Solutions.Technology leadership has always been a cornerstone of their strategy and a major reason for theirsuccess. With the new HE series (High efficiency) and alternative energy solutions, they strengthentheir position and are able to offer their customers a unique opportunity to save energy, moneyand the environment.Eltek was established in Norway in 1971 a specialist telecom energy systems supplier. Since then,the company has grown organically and through mergers and acquisitions to become a leadingglobal supplier of power solutions. In 2007, Eltek merged with Valere power to form the world’sfastest growing company in the industry. Eltek Valere has strong global positions in the Americas,Europe and Asia, serving multinational, regional and national builders of telecom infrastructure, aswell as industrial companies.

Eltek Valere has a long history as a leading global provider ofTelecom Power Solutions. Technology leadership has always been a cornerstone of our strategy and a major reason for our success.

With the new HE series (High efficiency) and alternative energy solutions, have we strengthen our position and are able to offer customers a unique opportunity to save energy, money and the environment.

Eltek was established in Norway in 1971 as a specialist telecom energy systems supplier. Since then, the company has grown organically and through mergers and acquisitions to become aleading global supplier of power solutions.

In 2007, Eltek merged with Valere power to form the world’s fastest growing company in the industry. Eltek Valere has strong global positions in the Americas, Europe and Asia, serving multinational, regional and national builders of telecom infra-structure, as well as industrial companies.

www.eltekvalere.com