Merrill Lynch 42 Volt System

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Energy Conversion Devices, Inc. ECD CORE COMPETENCE • A technology and manufacturing company specializing in amorphous and

disordered materials – “Ovonics” • Developed the field with over 40 years of research and development

ECD MATERIALS ARE THE ENABLING TECHNOLOGY • FOR NEW LINES OF BUSINESS: • ENERGY GENERATION

- Uni-Solar® Photovoltaic Products - Ovonic Fuel Cells

• ENERGY STORAGE

- Ovonic NiMH Batteries - Ovonic Hydrogen Storage Systems

• INFORMATION SYSTEMS- Optical Memory – Rewritable CD and DVD Products - Electronic Memory – Ovonic Unified Memory

ECD’s Leadership in Technology

 Patents/Intellectual Property - 362 issued U.S. patents and 752 foreign counterparts - Originated and holds the basic patents for: • Nickel Metal-Hydride (NiMH) Batteries • Hydrogen Storage in Hydride Materials • Thin-film Amorphous Silicon Photovoltaic (Solar) Cells • Information Products

 Know-how and Expertise

Energy Conversion Devices, Inc. ECD CORE COMPETENCE • A technology and manufacturing company specializing in amorphous and

disordered materials – “Ovonics” • Developed the field with over 40 years of research and development

ECD MATERIALS ARE THE ENABLING TECHNOLOGY • FOR NEW LINES OF BUSINESS: • ENERGY GENERATION

- Uni-Solar® Photovoltaic Products - Ovonic Fuel Cells

• ENERGY STORAGE

- Ovonic NiMH Batteries - Ovonic Hydrogen Storage Systems

• INFORMATION SYSTEMS- Optical Memory – Rewritable CD and DVD Products - Electronic Memory – Ovonic Unified Memory

Energy Generation ECONOMIC STATUS ¾ LOWER COST OPTION THAN CONVENTIONAL FUEL IN REMOTE AREAS NOT CONNECTED TO THE GRID. ¾ COST COMPETITVE TO CONVENTIONAL FUEL IN AREAS WHERE THE PEAK LOAD RATE IS HIGHER OR WHERE THERE ARE INCENTIVES FOR RENEWABLE ENERGY. ¾ WILL BE COST COMPETITIVE WITH CONVENTIONAL FUEL IN HIGH VOLUME PRODUCTION (>100 MW PER YEAR) USING IMPROVED TECHNOLOGY.

Energy Generation Competitive Advantages of ECD/United Solar’s PV  Low material cost achieved by using thin-film amorphous silicon  Record high stabilized energy conversion efficiency achieved by using the multijunction approach  Low manufacturing cost achieved by using the roll-to-roll production process  Flexible, lightweight and rugged products  Superior performance at high temperatures  Proprietary technology protected by 165 U.S. patents and 350 foreign patents

Energy Generation

Uni-Solar 5 MW Annual Capacity Machine

Bekaert ECD Solar Systems 25 MW Plant

Energy Storage - Batteries Ovonic Nickel Metal-Hydride Batteries are Everywhere! • over 1 billion sold in 2001 and the market is growing by 30% annually • 28 licensees – Basic patent position: 69 U.S. and 298 foreign

Energy Storage - Batteries

Advantages of NiMH Battery Technology • High Power – 1000 W/kg (HEV) • High Energy Density – 80 Wh/kg (EV) • Excellent Cycle Life – Life of vehicle – >50,000 PNGV 100 Wh Cycles • Rugged and Safe – Abuse tolerant • Environmentally Safe – No cadmium, lead or mercury • Low Lifecycle Cost

Ovonic Family of Batteries 10Ah to 110Ah

Energy Storage - Batteries Manufacturing and Sales Joint Venture 

Originally formed in 1994 to develop production manufacturing process



4-wheel automotive applications only

July 2001 – ChevronTexaco Ovonic Battery Systems LLC Formed 

50-50 joint venture – ChevronTexaco investing more than $150 million



Expansion of manufacturing facilities underway (Michigan & Ohio)



Development of 36-42 volt Monoblock Battery System



Develop NiMH battery for non-automotive applications (UPS, telecommunications, distributed power)

Energy Storage - Batteries

NiMH Production EV/HEVs

Energy Storage - Batteries

Starter, Lighting & Ignition (SLI) & Integrated Starter Generator (ISG) ¾ Automotive electrical systems will transition from 12/14 Volt to 36/42 Volt. ¾ Higher voltage automotive systems enable higher power electric features and reduce wiring cost and weight. ¾ Ovonic NiMH Batteries are ideal for ISG & 42V SLI based on their excellent power, energy & life.

Energy Storage - Batteries Technology Growth Worldwide Battery Market (by $ Volume)

2000

2010

$27 Billion

$45 Billion

NiMH 4% Lead Acid 80%

Other 1%

Lead Acid 54% NiMH 29%

Lithium 8% NiCd 7% Other 1%

NiCd 5%

Lithium 11%

Energy Storage - Batteries Segment Growth – Worldwide Battery Market SLI

Consumer

2010 Other

SLI (42 v)

Emergency Power

HEV Power Tools Signaling

EV/HEV/SLI (42v)

EV

Motive

Electronics

Toys Telecommunications Medical

$45 Billion

$13 Billion

Energy Storage - Hydrogen Ovonic NiMH Battery

Hydrogen stored and contained as a solid, transferred between hydride electrodes providing electrical energy as an output.

Ovonic Hydrogen Storage System

Hydrogen stored as a solid can be released to provide fuel for an I.C.E. or as a pure feed stock for fuel cells.

Hydrogen Storage

Hydrogen StateHydrogen SolidState OvonicSolid Ovonic System StorageSystem Storage

Power Output (We )

Ovonic solid hydrogen storage offer practical hydrogen storage solutions for portable fuel cell applications: Potential Metal Hydride/Fuel Cell Portable Applications • Cellular phones • Laptop computers • CD players • Portable televisions • Radios • Video cameras • Portable instruments • Hand-held power tools Proprietary Technology

30

300

25

250

20

200

15

150

10

100

5

50

0

0 0

1

2

3

4

Ovonic Solid Hydrogen Storage Systems can be designed in a large variety of capacities and configurations

5

6

7

8

9

10

11

12

13

Time (Hours)

1K Wh 500 Wh 100 Wh

Energy Delivered (Wh e )

Portable Ovonic Solid Hydrogen Storage System

Hydrogen Storage Advantages of Ovonic Metal Hydrides SPECIAL FEATURES: ƒ Up to 7 wt.% at about 300°C desorption – equivalent to 780 standard liters of H2 per kg hydride ƒ Excellent heat storage device – 0.8 kWh thermal energy per kg of Mg alloys ƒ Safe and compact ƒ Low-cost, long cycle life – greater than the life of the car ƒ Fast refueling capability – comparable to today’s liquid fuels ƒ Pure hydrogen fuel stream – no poisons or diluents ƒ Tailorable pressure operation – no need for compressors or expanders ƒ Packaging flexibility ƒ Ideal for fuel cell, ICE vehicles and for hydrogen transportation

Hydrogen Storage

Grams of hydrogen stored per liter volume

120

100

100-110

80 71 60

40

20

23

0

Ovonic Metal Hydrides

Liquid Hydrogen (-253°C)

Compressed Hydrogen (5000 psi)

Projected North American Market for Hybrid & Fuel Cell Vehicles 2000

2002

2004

2008

2012

ICE, HEV, EV Commercialization Phase (Introduction) Vehicles

Total # of Vehicles Infrastructure

Honda Toyota Ford Chrysler GM 250,000

Phase 2 Growth

Phase 3 Additional Options

Additional OEM HEV Entries Buses Ford Other EV 500,000–2,000,000

ICE Using Hydrogen as fuel 40,000 – 60,000 5,000,000–20,000,000

Existing gasoline, diesel, natural gas, electricity

Fuel Cell HEV

Vehicle Objectives

Sites Total # of Vehicles Infrastructure Objective Hydrogen Source No. of Stations

Phase 1 Technical Feasibility Demonstration

Phase 2 Controlled Fleet Demonstrations

Test FC vehicle performance and feasibility

Phase 3

Commercial Readiness Demonstrations

Commercialization Phase

Demonstrate commercial viability of FC Fleet vehicles

20 – 50

Demonstrate use of FC vehicles under real-world conditions 3 sites (different climates) 400 – 600

Investment to establish manufacturing plants and sales/service operations

Demonstrate H2 fueling station; Analyze fuel options Primarily trucked in liquid 3–5

Onsite generation from multiple feedstocks Renewable & fossil fuels 5 – 15

Sufficient stations to service consumers

1(CaFCP)

2-3 states (networked sites) 4,000 – 8,000

Most cost effective sources 20 – 50

Investment for about 30 of all stations H2 capable

Sources: U.S. Department of Energy; Automotive News; CA FCP; 2001 Battery Industry Report

Future Direction: Family of Ovonic Hydrides ¾ ¾ ¾

Achieve Greater Spectrum of Storage Sites Increase Reversible Capacity Use Commercial Low Cost, Low Purity Hydrogen (.99995 → .999)

A joint venture partnership between

Temperature (°C)

400 „

300

200

100

„

U

and

0

1

2

3

4

5

6

7

Hydrogen reversible capacity (wt%) U 6 months ago

„ Now

Near Term

Longer Term

8

May, 2002

ECD’s Hidden Assets • Patents & Know-how Joint Ventures (JV) and Subsidiaries {% owned by ECD} Photovoltaics • United Solar/Bekaert ECD Solar (alliance with Bekaert N.V.) {≈ 50%} • Sovlux – Russian JV with Kvant and Russian Ministry of Atomic Energy (MINATOM) {50%}

Value of ECD’s Ownership in Venture Based on Partners Contribution (millions)

Carrying Value of ECD’s Interest on Financial Statements (millions)

$72

≈$20

$15

$-0-

$70

$-0-

$128

≈$(72)

$150 $4 $12

$-0$-0$-0-

$104

$-0-

$7 $25

$-0$-0-

$587

($52)

Fuel Cells • ChevronTexaco Ovonic Fuel Cell Co., LLC–JV {50%} Battery • Ovonic Battery – balance owned by Honda, Sanyo and Sanoh {91%} • ChevronTexaco Ovonic Battery Systems LLC – JV {50%} • Sovlux Battery – Russian JV with MINATOM {50%} • China JV with Rare Earth High-Tech {19%}

Hydrogen Storage • ChevronTexaco Ovonic Hydrogen Systems LLC – JV {50%}

Information • Ovonic Media LLC – JV with General Electric {49%} • Ovonyx, Inc. – JV with Tyler Lowery, Intel and Others {41.7%}

Total

Why Energy Conversion Devices?  Recognized basic dominating patents/enabling technologies in the basic industries of the 21st Century (Energy and Information)  Powerful strategic alliances  Proven, experienced management team  Off-balance sheet values  Increased global awareness of need for alternate energy solutions  Production processes proven  Products and materials moving into commercialization phase to serve rapidly expanding markets

SAFE HARBOR

„ This presentation may contain forward-looking statements within the meaning of the Safe Harbor Provisions of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements are based on assumptions which ECD, as of the date of this presentation, believes to be reasonable and appropriate. ECD cautions, however, that the actual facts and conditions that may exist in the future could vary materially from the assumed facts and conditions upon which such forward-looking statements are based.

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