Green, Sustainable Microturbines

© 2006 Capstone Turbine Corporation • www.microturbine.com

Microturbine Vertical Applications

Best Value for Onsite Energy

Generation

Best Value for Onsite Energy

Generation

CCHP CHP

Resource Recovery

Secure Power

ResourceRecoveryResourceRecovery


Biogasisn’t allyou’re flaring

Biogasisn’t allyou’re flaring

Biogas Resource Recovery


What is Biogas Resource Recovery?

• Using otherwise flared gas as fuel for onsite power generation• May have low Btu content• May have “sour” content (H2S)

• Biogases from• Landfills • Wastewater treatment • Livestock • Food processing


• Generate renewable power fueled by flare gas

• Offset energy bills

• Qualify for incentives

• Export to the power grid

• More completely destroy odors, methane and non-methane compounds

• Positive environmental impact on community

Benefits of Biogas Resource Recovery

An LFG-fueled array of eight Capstone MicroTurbines in MN


Capstone Biogas-to-Energy: A Proven Fit

• Hundreds of biogas MTs deployed worldwide

• Ultra-low NOx and CO emissions without any post-combustion devices or chemicals

• Accepts 325+ Btu LFG

• 99.999% combustion efficiency; no odor

• Low scheduled maintenance, low noise, low weight, small footprint, no vibration

• Multipacking capability/scalability from <30 kW to a megawatt or more

• UL2200 certified “Biogas-Fueled Engine Generator”

• UL1741 certified national grid interconnect

• Only one moving part, with no oil, antifreeze, other hazmats or water needs A C30 with heat recovery operating

on biogas at a Japan dairy farm


MicroTurbine Tax Credit in 2006

• The new National Energy Policy provides a 10% tax credit to com-panies that begin using microtur-bines on or after January 1, 2006

• Includes balance of plant costs up to a tax credit total of $200/kW

• Also calls for per-kWh incentivepayments for biogas-fueled renewable exports to the grid

• Additional incentives available for rural deployments


UL2200 & UL1741 Listed for Biogas

• Biogas-fueled Capstone 30-kW and 65-kW MicroTurbines are the ONLY generators of any type certified to the new 2006 UL 2200 standard for biogas-fueled engine generators

• They are also UL-Listed to the 1741 national grid interconnect standard

• Capstone MicroTurbines were also the first generators of any type state-approved by New York and by California (“Rule 21”) for direct-to-grid interconnection


Even Faster ROI in California

• Major California utilities now fund the total cost of each biogas-fueled Capstone MicroTurbine deployed

• $1,300/kW for biogas fueled microturbine installations

• Excess funding can be applied to gas treatment cost


What is LFG Resource Recovery?

• Using landfill gas as fuel foronsite power generation

• LFG is a “difficult” fuel

• Has low Btu content, which fluctuates over time

• Has gaseous siloxanes, which become abrasive silica inpiston engine gensets and other combustion devices

• Has corrosive “sour” content (H2S)

• Post-combustion emission devices rather intolerant of combusted LFG

• Without exhaust treatment, most generators release far more NOx, and noxious odors, than flaring

Puente Hills Landfill – Beta installation


Landfill Gas Renewable Energy• More than 100 LFG-fueled Capstones

worldwide


Capstone Landfill ExperienceLandfill Site State # of C30s Capacity

South Indianapolis, 2001 IN 1 30 kW

Burbank, 2001 CA 10 300 kW

Lopez Canyon, 2002 CA 50 1,500 kW

Shepard (Canada), 2002 AB 1 30 kW

Calabasas, 2002 CA 10 300 kW

Piemonte (Italy), 2002 1 30 kW

Rutgers EcoComplex, 2002 NJ 4 120 kW

Hillsborough Heights, 2003 FL 1 30 kW

Stora Enso (Finland), 2003 1 30 kW

Sauk County, 2003 WI 12 360 kW

Antioch, 2003 IL 12 360 kW

Veneto (Italy), 2003 2 60 kW

Glacier Ridge, 2004 MN 8 240 kW

Smitop (France), 2004 8 240 kW

Sansia (Taiwan) 2005 3 90 kW

Mountaubert (France) 2005 6 240 kW

Des-Isnes (Belgium) 2005 2 60 kW

Total: >130 >4 MW


South Side Landfill, Indiana

• South IndianapolisMunicipal Landfill

• First commercialinstallation

• Single-unit installationran well for 10,000hours before failure

• Engine showedsignificant silica foulingcaused by siloxane gases becoming “sand”during LFG combustion

• Engine replaced

• More diligent siloxane removal process now in place


LFG Processing Equipment Today

[this is a generic representation][this is a generic representation]

DischargePressure

GasTemperature

SamplePort

Bypass

GasTemperature

GasCompressor

RefrigeratedGas Dryer

SiloxaneFilter

CapstoneMicroTurbine

Sour GasExternal Fuel Kit

Condensate Drain

MediaRefill Port

Liquid/GasSeparator

Check Valve

CondensateRemoval

Condensate Drain

GasInlet

CondensateDrain

ParticulateFilter


Landfill Installations in California

• California leads the nation in microturbines at landfills• Total of 70 LFG-fueled Capstone MicroTurbines installed in SoCal

• Below: 10-unit array at Calabasas running 4 yrs with >90% turbine availability (this site was featured in several SWANA whitepapers)

• A project of the Los Angeles County Sanitation Districts and the South Coast Air Quality Management District


Landfill Installations in California (cont.)

• The world’s first landfill-based microturbine array: Burbank, California

• Began operating nearly 5 years ago

• Praised by California Gov. as “…innovative thinking that solves environmental problems while producing reliable and clean electricity”

• Generates up to 300 kW for use onsite

• A project of the Burbank Department of Water and Power


Landfill Installations in California (cont.)

• World’s largest arrayof biogas microturbines: 50 units at Lopez Canyonin San Fernando Valley

• 1.5 MW capacity

• 200 kW consumed onsite

• Up to 1.3 MW is exportedinto the LADWP utility grid

• Running since August 2002

• A project of Los Angeles Department of Water & Power and the South Coast Air Quality Management District


Several Midwest Projects

Twelve C30s at the Sauk County landfill in Wisconsin

Eight C30s at the Glacier Ridge landfill in Minnesota

Twelve C30s providing LFG-fueled power and exhaust-heated water at Antioch

High School north of Chicago


Overseas: FranceAn array of 8 LFG-fueled C30s at a landfill north of Paris produce power and heat for the facility and a greenhouse


Overseas: TaiwanAn array of 3 LFG-fueled C30s at Sansia landfill in Taiwan


New 65-kW Biogas Model w/HX Option

The new biogas-fueled CR65• Twice the power output of our very popular C30

Biogas model

• Only 30% larger footprint

• 10% boost in electrical fuel efficiency

• Lower NOx & CO emissions

• Same proven-reliable, one-moving-part design

• UL1741 nationwide grid interconnect certified

• Optional stainless steel integrated HX for exhaust-to-water heating for thermal loads

UNITS NOW SHIPPING


Digester Gas Renewable Energy• Primarily wastewater

treatment plants


Wastewater Treatment Plants

Two C30s and a heat exchanger at a WWTP in Banning, CA

• Easily scalable for facilities processing 0.5 to 50+ MGD

• Excellent cogeneration fit• Microturbine exhaust heat

supports digester temperature

• Far simpler and more efficient thermal recovery than recips

• Eliminates odors

• Reduces/eliminates flaring

• A clean, sustainable source of renewable energy


San Elijo WWTP: First to Go Online

• San Diego, CA

• Innovative: Produces the most reclaimed water in California

• 90-kW array – about 15% of total load

• Power cost savings since June 2001: more than $250,000

• State and utility incentives: more than $100,000


Lewiston, NY, Shortly Thereafter

• Lewiston Water Pollution Control Center, NY (near Niagara Falls)

• Operating for nearly 5 years

• Two biogas C30s + 3rd party HX

• NYPA funded $125,000

• NYPA Chairman Louis Ciminelli: “Running this facility with cleaner, greener power improves air quality and saves taxpayers money.”

• Featured in Capstone video (www.microturbine.com/biogas)


Agricultural Biogas

C30s just delivered to a dairy farm in NY

C30-based OEM CHP system fueled by pig farm digester gas, Germany

C30 at the CalPoly San Luis Obispo campus dairy farm digester lagoon

Four C30s at California dairy farm C30 at Japan dairy farm


Other Biogas Possibilities

• A number of other biogas opportunities are on the horizon, including:• Palm oil production biogas• Meat, fish, poultry

byproduct rendering gases• Wood chip gasification

Wood gasification prototype in Australia Two C30s operating at a palm oil plant in Malaysia


Making a Difference Today

• More than 3,500 Capstone MicroTurbines

have been sold and shipped worldwide to

cut costs at a variety of industrial,

commercial and municipal facilities.

• Most use natural gas, but several hundred

create renewable energy from otherwise

flared gas from landfills, oilfields, farms

and sewage treatment plants.

• Capstone MicroTurbines are delivering the

economic, environmental and community

benefits of energy efficiency and certainty

…and are doing so right now.50 renewable energy C30s fueled with biogas

operating at Lopez Canyon landfill in California

Green, Sustainable Microturbines

Technology

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