general biogas presentation

CapstoneMicroTurbine®

Energy Solutions

CapstoneMicroTurbine®

Energy SolutionsA presentation by

Capstone Turbine Corporation®

A presentation byCapstone Turbine Corporation®

Microturbine Vertical Applications

Best Value for Onsite Energy

Generation

Best Value for Onsite Energy

Generation

CCHP CHP

Resource Recovery

Secure Power

ResourceRecoveryResourceRecovery

Topics to be Covered

Biogas Resource Recovery

Capstone Overview

Microturbine Overview

Gas Conditioning

System Maintenance

Example Biogas Sites

Questions & Answers

What is Biogas Resource Recovery?

• Using otherwise flared gas as fuel for onsite power generation• May have low Btu content (as low as 350 Btu/scf)

• May have “sour” content (H2S)

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

Capstone Biogas-to-Energy: A Proven Fit

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

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

• Multipac scalability from 30 kW to a megawatt or more

• UL2200 classified “Biogas-Fueled Engine Generator”

• UL1741 certified national grid interconnect

• Only one moving part, with no oil, antifreeze, other hazmats or water needs

• Wide array of control & dispatching options

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% investment tax credit to companies that begin using microturbines after January 1, 2006

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

• Also calls for per-kWh productioncredit for biogas-fueled renewable power exported to the grid

• Additional incentives available for at each state level

Capstone: A Big Small Company

• Founded 1988

• First to introduce microturbine energy products ten years later

• 100% microturbine focused

• The world leader in microturbines

• >5,000 30/60/65-kW production units sold and shipped

• 3rd and 4th generation products

• ISO 9001:2000 UL-certified

• ISO 14001 certified

• Offices in NYC, LA, Mexico City, England, Shanghai & Tokyo

18,000,000+18,000,000+

Inside the Capstone MicroTurbine

• One moving part: TurboGenerator shaft

Simple: One Moving Part

• Air bearings (patented)• No oil or lubricants,

• Proven reliability• >18 million hours of

operation

• Air cooled• No anti-freeze or

coolants, ever Air Foil

Spring

Foil/Air Gas Bearings

Spring

Air Bearings

Spring

When the shaft rotates at around 20,000 RPM,a boundary layer of air will form between the foils and the shaft.This layer of air will effectively lift the foils up and away from the shaft.

The springs provide counterforce to the foils and air, effectively keeping the shaft centered on it’s cushion of air.

After lift-off there is no metal-metal contact in the bearing, hence no friction and no wear.

The only wear and tear occurs during starting and stopping the MicroTurbine.

Boundary Air

• Self-contained Power Generation• 30 kW & 65 kW base platform• Zero hardware multipac array

• One moving part!• “Electronic” Gearbox• Voltage Output

• 400-480 VAC 3 phase• 4-wire wye• 50 or 60 Hz

• Noise level 70dBA at 10 meters• Size 30” W, 77” D, 83” H • Optional stainless steel integrated HX

System Overview

Hot Water CHP with the CR65-ICHP

• 65% System Efficiency• 250,000 BTU/hr heat recovery

Capstone Products

C30 & C65 C65 CHP

Available with gas & liquid fuels

C200 & C200 CHP

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

Gas Quality Required

• Calorific Value (gas energy)

• Min 35% methane (~350 BTU/ft3)

• Dry (unsaturated gas)

• Inlet pressure ~80 psig

• Minimal Siloxanes

• < 5 ppb (non-detect level)

• Low Hydrogen Sulfides (H2S)

• < 5,000 ppm

Biogas – Gas Conditioning System

[generic representation][generic representation]

Biogas – Gas Conditioning Skid

FrontFront

Gas Quantity Required

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

• How much biogas production is needed to operate 1 microturbine? It Depends….

• @ 40% Methane (CH4)

• CR30 – 24 scfm

• CR65 – 40 scfm

• @ 60% Methane (CH4)

• CR30 – 15 scfm

• CR65 – 28 scfm

• Microturbine service• 4,000 hr general inspection• 8,000 hr replacement

• Air Filter, Fuel Filter, Igniter

• 20,000 hr replacement• Injectors, TET thermocouple

• Gas Conditioning Skid• Compressor oil & filter

change• 3-4 times per year

• Siloxane media change outs• 2-3 times per year

System Maintenance

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

Santa Margarita WWTP

• Mission Viejo, CA

• 120-kW array

• Plan to add two CR65s

• Heat Energy - Sludge drying

Sheboygan WWTP

• Sheboygan, WI

• 10 C30 Microturbines

• 300 kW array

• Saves city over $70,000/yr

• Cut plant’s electric and NG costs by 40%

Albert Lea WWTP

• Albert Lea, MN

• 4 C30 Microturbines

• 120 kW array

• To be featured in Distributed Energy mag (Oct 2006 issue)

Lewiston, NY

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

• Operating for over 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.”

• Replacing with CR65 in six mos.

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

worldwide

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

Several Midwest Projects

Twenty Four C30s at the Sauk County landfill in Wisconsin

Ten C30s at the Glacier Ridge landfill in Wisconsin

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

High School north of Chicago

Flare or Vent Gas Elimination

Use flare or vent gas to generate on-site power or heat• Reduces power utility costs• Eliminate flare or vent emissions• Eliminate emissions credits or fines

Questions & Answers

general biogas presentation

biogas biogas

capstone biogas

biogas production

biogas gas conditioning

microturbine energy

gas quality

flared gas

digester gas renewable

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