The World Leader in Clean The World Leader in Clean Small Turbine Energy

GenerationGenerationCenterPoint EnergyCenterPoint Energy

April 9, 2008

What is a Capstone turbine?What is a Capstone turbine?• In layman's terms, “A miniature

jet engine that runs at speeds Exhaust output

Cooling fins

jet engine that runs at speeds up to 96,000 rpm and generates electricity and heat.

• Electrical power output: 30 kW Combustion

Recuperator

Fuel injectorAir intake

p pto 5MW range

• Highly Reliable• Ultra low emissions

chamber

Ultra low emissions• Multiple fuels; natural gas,

propane, diesel, biodiesel, methane/biomass Generator

• Simple/cost effective design• Low maintenance Air bearings

Compressor

Turbine

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95 U.S. Technology Patents

• One moving part: TurboGenerator shaft

95 U.S. Technology Patents

Spring

Foil

• Air bearings - No oil or grease

Shaft• Air cooled - No liquid coolants

2

coolants

Inverter Based ElectronicsInverter Based Electronics

3

4th-Generation Power Electronics

Regulated DC Bus

Regulated DC Bus

Engine Control Module•All digital DSP control Load Control Module•All digital DSP control•Controls turbine operation•Wide speed control range•Sensorless generator

•All digital DSP control•Built in neutral•Built in protective relays•Built in synchronization•Built in paralleling capabilitycontrol

•Small and lightweight•Built in dynamic brake•Built in system power supply

Battery Control Module•All digital DSP control•Transient power control

•Built in paralleling capability•Grid Connect or Stand Alone•No transformer required•100 kVA rating•Air cooled

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supply•Air cooled

Transient power control•Bi-directional power control•Manages battery charge/health•Air cooled

•IEEE 519 compliant•UL 1741 certified•NY & CA state certified fordirect-to-grid interconnection

MultiPacMultiPac

• StandaloneStandalone– Island Mode– Up to 30 Units

• Grid Connect– Parallel to grid

thor other source

– Unlimited UnitsUnits

5

ProductsProducts

• Capstone product linep p• C30 = 30KW

• C65 = 65KWC65 65KW

• C200 = 200KW

• Capstone has pre engineered packages to 1MW• Capstone has pre-engineered packages to 1MW• C600 = 600KW

• C800 = 800KW

• C1000 = 1000KW

6

• Controls

Company HighlightsCompany Highlights• Capstone is the world leader in small turbine power

generation • 20 Years building turbines• Over 4,500 units shipped • Over 18 million hours of operation• Over 18 million hours of operation

• Proven technology with customer demonstrated availability and reliability

• MTBF of 13,000+ hours for the C65• MTBF of 15,200+ hours for the C30

• More than 50 distributors worldwide• Factory Remanufacturing program• Factory Protection Plans (FPP)

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• Supported by Authorized distributors

Market Drivers for CHPMarket Drivers for CHP

Rising Energy PricesPrices

Grid Capacity ConstraintsConstraints

Power Security

Climate Change

8

Gas Turbine ComparisonGas Turbine ComparisonGas Turbine Comparison (Product Data Sheets, January 2008)

40Solar Turbines Mercury 50

Capstone C200 Capstone C100034

36

38

)

Siemens SGT-100Ingersol Rand MT250

Elliott TA100R

Rolls Royce 501-KB5SOPRA Turbines OP16-3B (DLE)

Solar Turbines Centaur 40Solar Turbines Centaur 50

Kawasaki GPB60DRolls Royce 501-KB7S

General Electric GE5-1 (DLN)

Capstone C30

Capstone C65

26

28

30

32

Effic

ienc

y (%

Kawasaki GPB30DKawasaki GPB15D

(DLE)

Solar Turbines Saturn 20

20

22

24

26

Elec

tric

al

Dresser-Rand KG2-3EDresser-Rand KG2-3C

14

16

18

0 1 2 3 4 5 6

9

Highest Efficiency Less than 4 MW

0 1 2 3 4 5 6

Power Output (MW)

C1000 ISO EfficiencyC1000 ISO Efficiency35

25

30

15

20

ficie

ncy

(%)

10

5

Eff

Load Share Efficiency

Typical Turbine Efficiency

0

5

0 100 200 300 400 500 600 700 800 900 1000

10

High Part Load Efficiency

0 100 200 300 400 500 600 700 800 900 1000

Power (kW)

Fuel FlexibilityFuel Flexibility• C30 & C65

• Natural gas• Natural gas• Low BTU gas down to 325 BTU/Cu. Ft• LPG• Liquid fuels

• Diesel• Kerosene• Bio Diesel• Jet fuel

• C200• Natural Gas• Low BTU gas• LPG

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• LPG• Liquid fuels in 2009

Vertical ApplicationsVertical ApplicationsCCHPCHP

Best Value for Onsite Energy

GenerationBest Value for Onsite Energy

GenerationGenerationGeneration

SecureResource

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Secure Power

ResourceRecovery

Market SegmentsMarket Segments

HospitalsLarge Retailers Telecom

Hotels Schools

Resource Recovery

U.S. Gov’tHotels Sc oo sU S Go

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Landfills Waste Water PlantsDigesters

Microturbines vs Piston EnginesMicroturbines vs Piston EnginesCapstone Microturbines Traditional Piston Engines

Ultra low emissions Local air permits and exhaust cleanup required

Low maintenance – Six hours per year High maintenance – Oil changes, Coolant, Spark plugs

On board digital electronics External controls without power electronics

Integrated utility protection & synchronizing Requires external relays & control equipment

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Lightweight & small footprint More than twice the weight & footprint

CCHP Case Study:Ronald Reagan Presidential Library and MuseumRonald Reagan Presidential Library and Museum

The Issues:– Overcome potential power supply issues

and rolling blacko tsand rolling blackouts– Keep exhibit building containing retired

Air Force One jet cool, comfortable, and well lit

The Solution:– 16 C60 microturbines running on clean-

burning natural gas supply 95% of the facility’s electricity

– Three 129-ton direct exhaust-fired absorption chillers create 387 tons of refrigeration for cooling

– Exhaust from the microturbines provide hot water to heat the pavilionhot water to heat the pavilion

Savings:– Over $300,000 in annual operating

costs$823 156 incentive reduced installation

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– $823,156 incentive reduced installation cost 30%

C1000 CHPC1000 CHP

• Absorption chillers

• Cooling towers

p

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• C1000

Hybrid Electric Vehicle Case Study:DesignLine / Hybrid BusesDesignLine / Hybrid Buses

The Issues:• Run low emission vehicles in

densely populated areas• Increase fleet efficiency• Reduce maintenance• Improve reliability• Improve reliability

The Solution:• The buses' Capstone turbine generates electricity toThe buses Capstone turbine generates electricity to

charge batteries, which run electric motors. The batteries are charged overnight and the turbine system recharges them when operating.

• The vehicles are fitted with remote monitoring which

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The vehicles are fitted with remote monitoring which means Designline engineers can talk to the on-board computers monitoring performance and carry out diagnostic checking.

Secure Power Case Study:Boeing Data / Telecom SystemBoeing Data / Telecom System

The Issues:– Protect data and phone networks

and equipment from grid outages– Minimize noise and vibration– Allow minimal environmental impact

The Solution:– A Capstone C30 microturbine was installed in a pre-

existing enclosure near the building’s loading dockTh t l d i t bi id

The Capstone C30 demonstrates its small footprint on site at Boeing.

– The natural gas powered microturbine provides electric power 24x7 to the network and equipment

– The microturbine ensures uninterrupted service in the event of a grid power outage

– The Capstone technology was preferred over UPS b tt i d t i d t th i i

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batteries and genset engines due to their noise, emissions and vibrations

Installation was simple, with the turbine placed in an existing enclosure.

Green Building Case Study:Oregon Health & Science University Oregon Health & Science University

U S Green Building Council awardedU.S. Green Building Council awardedPlatinum LEED certification

– The highest level of certification granted

• 16 Story 400,000 SF medical f ilitfacility

• Grand Opening January 19, 2007• Five C60-IHCP’s• Units provide 300kW of power

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p pand building heating

Case 1: One-MW vs GridCase 1: One MW vs Grid• 1 MW of Generation

– Grid: National So Cal ConEd• 8,000 hours of operation• Full Power and StandardGrid: National, So. Cal, ConEd

– 16x C65 Standard– 16x C65 CARB

Full Power and Standard conditions

S htt // / l / fil ht

75

90

National AvgS. California

Source: http://www.epa.gov/cleanenergy/powerprofiler.htm

45

60

ns o

f NO

x ConEdC65 Std PkgC65 CARB

15

30Ton

20

0Year 1 Year 5 Year 10

Case 1: One-MW of NGCase 1: One MW of NG• 1 MW of ICE Generation

– Jenbacher J320-C86 (1 06 MW)• 8,000 hours of operation• Full Power and StandardJenbacher J320 C86 (1.06 MW)

– 16x C65 Standard– 16x C65 CARB

Full Power and Standard conditions

80 350

60

70

x

250

300NOX - JenbacherNOX - C65 Std PkgNOX - C65 CARBCO - JenbacherCO - C65 Std Pkg

30

40

50

Tons

of N

Ox

150

200

Tons

of C

O

CO C65 Std PkgCO - C65 CARB

10

20

30T

50

100

T

21

0Year 1 Year 5 Year 10

0

Case 2: 500 kW on Diesel #2Case 2: 500 kW on Diesel #2• 500 kW of ICE Generation

– 17x C30 Liquid (510 kW)• 8,000 hours of operation• Full Power and Standardq ( )

– Caterpillar C18 (500 kW)– Cummins QSK23 (570 kW)

Full Power and Standard conditions

700 80

500

600

700

x

60

80NOX - C30 LiqNOX - CatNOX - CumminsCO - C30 LiqCO C t

300

400

ons

of N

Ox

40

ons

of C

OCO - CatCO - Cummins

100

200

To

20

T

22

0Year 1 Year 5 Year 10

0

• Jim Crouse, EVP Sales & Marketing

• (818) 407-3634

• Doug Demaret, Sales Manager

• (818) 407-3638

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• Jason Klovski, Inside Sales

• (818 734-5464