GreenBuild Expo

November 19, 2015

380VDC Powering Approach

Who is Eltek?

Eltek is a world leader in high-efficiency power conversion and

electronics. We are an industry pioneer with more than 40 years

of experience. We help customers save energy and money while

reducing their environmental impact.

11/24/2015 Company presentation Slide 2

11/24/2015Slide 3

Eltek is proud to be

a Delta Group Company

• Eltek remains a Norwegian company, fully owned and incorporated in the Delta Group of companies

• The Eltek brand and products will remain

• With the joint forces, Eltek will be able to serve customers with:- Wider product portfolio

- A more complete sales and service network

- Continued leadership through an even stronger R&D team and manufacturing capabilities

Stronger TogetherEltek - A Delta Group Company

Company presentation

11/24/2015 Company presentation Slide 4

Human activity depends on electricityLife on earth today depends on sufficient and accessible energy –

and our expectation is that it should be stable and reliable

we make it happen

Railway & Metro Data Center

Power Utilities Marine & Offshre Telecom

Engineering

and R&D, 40

Sales, PM &

Customer Service, 60

Operations &

Quality, 80

Finance , HR

& Admin, 20

ELTEK USA: LOCAL MANUFACTURING

• Americas headquarters located in Plano,

TX

- Over 120,000 sq. ft. facility space

- Full system Integration and test facilities

- Power products ranging from1 Amp to 20,000

Amps

- Sales offices throughout the U.S. covering all 50

states

- 24x7 Customer Support Services

• 200 Full-time + contract employees

- Engineering and R&D: 40

- Sales, PM, Installation & Customer Service: 60

- Operations & Quality: 80

- Finance, HR & Admin: 20

380VDC POWERING

• Introduced through a Department of Energy initiative focused on

data center efficiency improvement

380V DC UPS ARCHITECTURE

A simpler architecture with fewer power conversions

Traditional

AC UPS

#3: 208V AC

(for PSU supply)

# 4: 380V DC

(for PFC stage)

#5: 12V DC

(for IT eqpt)

# 2: 480V AC

(allows bypass)

# 1: 540V DC

(for batteries)

1 5432

Power

Conversions:

380V

DC UPS

#2: 12V DC

(for IT eqpt)

# 1: 380V DC

(system voltage)Power

Conversions:

1 2

380VDC POWERING

• Introduced through a Department of Energy initiative focused on

data center efficiency improvement

• Results in a simpler architecture with expectations of lower capex

and opex costs, reduced footprint and higher reliability

380VDC POWERING

• Introduced through a Department of Energy initiative focused on

data center efficiency improvement

• Results in a simpler architecture with expectations of lower capex

and opex costs, reduced footprint and higher reliability

And it addresses emerging needs

SERVICE PROVIDER’S PROBLEM

• Power density of ICT equipment is growing rapidly, which is

taxing the capacity of the existing 48V 10,000A systems

• The 48V DC systems are aging and experiencing rectifier

failures (predominantly ferros)

• Cable congestion is constraining the power levels that can be

delivered into the ICT load areas

An upgrade of the existing 48V centralized power systems will not

achieve the power densities that will be required for the coming years

… a transition to an alternative powering approach is necessary

CUSTOMER’S INITIAL 380V SYSTEM

380V

Rectifiers

277VAC

(480V 3Φ+N)380/48V

Converters

380VDC

48VDC

48V

BDFB

. . .

380V

Batteries

. . . 48V Eqpt

Loads

New Equipment

Existing Equipment

Basement Equipment Floors

CUSTOMER’S INITIAL 380V SYSTEM

380V

Rectifiers

277VAC

(480V 3Φ+N)

380/48V

Converters

380VDC

48VDC

48V

BDFB

. . .

380V

Batteries

. . . 48V Eqpt

Loads

New Equipment

Existing Equipment

Basement Equipment Floors

380V

PDU

. . . 380V Eqpt

Loads

ADDRESSES THE CONGESTION ISSUE

• There is dramatic impact on cable sizing

CUSTOMER’S VIEW ON 380VDC POWERINGSummary

• Addresses their impending constraints

• Can be phased-in through a practical transition

• Delivers near-term and long-term operational benefits (reliability,

energy efficiency, facilitation of Microgrids …)

• Avoids the extremely costly alternative of transitioning to a new

facility

380VDC appears to be an excellent approach for delivering both the

power levels and reliability that will be required at their existing

facilities in the coming years and decades

380VDC POWERING

• Introduced through a Department of Energy initiative focused on

data center efficiency improvement

• Results in a simpler architecture with expectations of lower capex

and opex costs, reduced footprint and higher reliability

And it addresses emerging needs:

• Enables the delivery of 20kW or more to each emerging ICT rack

Problems inherent in our electric grid have resulted in significantly

more reliability issues and outages than are being experienced in

Europe and other developed areas

Kurt Yeager, Past President and CEO of EPRI

THE BIG PICTURE

• Growing recognition and concern that the U.S. Electric Grid infrastructure may be inadequate to meet the needs of the coming decades - Rapidly increasing demand

- Constrained generating capacity

- Diminishing reliability

- Rising costs

- Fossil fuel dependency

- Security concerns

GRID SYSTEM OF THE FUTURE

EMERGE ALLIANCE STANDARDS

Standard in ProcessStandard Exists Standard Planned

Standard

exists for

380VDC

Data Center

380VDC POWERING

• Introduced through a Department of Energy initiative focused on

data center efficiency improvement

• Results in a simpler architecture with expectations of lower capex

and opex costs, reduced footprint and higher reliability

And it addresses emerging needs:

• Enables the delivery of 20kW or more to each emerging ICT rack

• Facilitates the implementation of Microgrids to support the electric

grid with distributed generation resources

REMOTE POWERING NEEDS

• There is a rapidly growing need to expand communications and

data networks closer to the customers they serve

- Distributed Antenna Systems and Small Cells

- WiFi Access Points

- Optical Network Terminals

• Installations become more challenging and expensive (stadiums,

campuses, offices, multi-dwelling units...), particularly with respect

to powering

24 November

2015Slide 22

380VDC POWERING

• Introduced through a Department of Energy initiative focused on

data center efficiency improvement

• Results in a simpler architecture with expectations of lower capex

and opex costs, reduced footprint and higher reliability

And it addresses emerging needs:

• Enables the delivery of 20kW or more to each emerging ICT rack

• Facilitates the implementation of Microgrids to support the electric

grid with distributed generation resources

• Touch-safe, economical and efficient power distribution via digital

electricity

WANT TO LEARN MORE?

Visit us at Booth 4320

Experience the power.Experience the power.Experience the power.Experience the power.Experience the power.