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FlexEnergy, LLC 

October 2010

Powerful solutions for eliminating greenhouse gases. 

Generating energy for generations to come.
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UNIQUE TECHNOLOGY SOLUTION

Who is FlexEnergy?

• Irvine, CA Based Clean Tech Company

• 10 years federal and state R&D funding

• In 2008 - Orange County VC support to 

commercialize 

• 23 people in CA and growing

• Hired 15 people since February

• Company Mission

• Eliminate emissions on a wide range of

fuels focused on problematic weak gases

• Long term system solution for 

greenhouse gas destruction

• Environmental clean-up paid for by 

power generation
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• Market Opportunity

• Worldwide desire to reduce emissions

• Tougher regulatory environment 

• Multiple sources of methane & other 

polluting gases

• Technology Approach 

• Methane destruction system with energy 

generation 

• Fuel flexible and near zero emission 

solution

• Business Strategy

• Develop, market, sell & support the Flex

Powerstation

NEW SOLUTION BUILT ON PROVEN TECHNOLOGIES

FlexEnergy
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Flex Technology 

• “Flex” Powerstation

• Complete methane emissions control 

system with energy generation 

• Built upon gas turbine and thermal 

oxidizer technologies

• Patented and patent pending technology

• Benefits

• Widest Fuel Range

• Runs on gas 1.5% the strength of 

natural gas (15 Btu/scf)

• No Fuel Conditioning

• Handles moisture and siloxanes

• Ultra Low Emissions

• Designed to meet current and future 

CA Regulations
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Fuel Flexible for Gas Applications

1200 Gas Btu/scf 15 50 100 200 250 350 500 650 1000 2000+

Oil Field Overhead Vapors Natural Gas Pipeline

Oil Field Associated Gas

Digester Gas

Oil Field Tail Gas Perimeter Gas Closed Landfills Active Landfills Bio Gas Conditioning Tail Gas

Flex PowerstationTM

Abandoned mines Coal Beds/Coal mines
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o High Quality & High Pressure Fuel Required: Limited Fuel Range

o Fuel Cleanup Required: Moisture & Siloxane Removal Causes 

Reliability Problems

Traditional Solution
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o Remove Restrictions on Fuel Pressure & Quality: Wide Fuel Range

o Make Moisture & Siloxane Tolerant : Eliminates Main Cause of 

Reliability Problems

Flex Solution
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o Flexidizer (Thermal Oxidizer) Replaces Combustor & Eliminates Need 

for Fuel Conditioning

o Fuel Gas Aspiration at System Inlet Eliminates Need for High Pressure

Flex Solution
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o System Architecture: Breakthrough for Low Btu Gas at Low Pressure

o Eliminates Need for Fuel Cleanup

Flex Low Btu and Low Pressure Solution
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o Flexidizer emissions: 

o NOx and CO both < 1ppm

o Temperature maintained above 

1450F and below 2000F 

o Avoids NOx formation while 

destroying CO

Flex Ultra Low Emissions Solution
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Source Test Results (July 28, 2010)

NOx (Flexidizer) 

• 0.66 ppm @ 15% O2

CO (Flexidizer) 

• 0 ppm @ 15% O2
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Fuel Flexible for Landfill Gas Applications

5%

100% 35% 55%

Input Methane Content Comparison for Flex PowerstationTM vs Other Technologies Perimeter Gas 15% 10% Old Closed Landfills 35% 25% Recently Closed Landfills 40%

Active Landfills Flex PowerstationTM 1.5%* Up to ~35% Non-flexible Turbines ~40% IC Engines

Landfill Gas Characterization (approximate)

55%

*1.5% CH4 by volume mixed with inlet air Technologies Gas Operating Ranges (approximate)
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Life of A Landfill

10 20 30 40 50 60 70 80 90 100 10%

20%

30%

40%

100%

50%

80%

60%

70%

90%

Years Since Inception of Landfill

Percent Methane 1.5%

Active Closed
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Life of A Landfill

10 20 30 40 50 60 70 80 90 100 10%

20%

30%

40%

100%

50%

80%

60%

70%

90%

Years Since Inception of Landfill

Percent Methane 1.5%

Traditional Power Generation 20 yrs

Flare 50 years
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Flex Solution For the Life of the Landfill 

10 20 30 40 50 60 70 80 90 100 10%

20%

30%

40%

100%

50%

80%

60%

70%

90%

Years Since Inception of Landfill

Percent Methane

Flex converts the landfill lifecycle methane opportunity
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Industry

Military

The Flex Powerstation – The Cleanest Power Platform on the Planet

Markets

FLEX

TECHNOLOGY

International Standards

UNCCC

USA 

Federal Regulations

EPA

State Regulations

CARB – AB32

Local Regulations

SCAQMD

SJV APCD

Digesters

Coal Mines

Oil & Gas

Landfills

Ships

Waste Fuels

Bases

Landfills

Industrial Processes
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Renewable Energy from Flare Gas at Landfills & Digesters with Flex 

Flare Gas Flowmeter Gas Blower Condensate Knockout Landfill or Digester Piping Point of Connection for FlexPowerstationTM

FlexPowerstationTM Unit #1

Utlity Site Main Switchboard Utility Transformer

Electric Point of Connection for FlexPowerstationTM

Communication Point of Connection for FlexPowerstationTM Phone/Internet

FlexPowerstationTM Unit #2 thru #XX Switchboard

Existing Site Equipment

Sample Flex PowerstationTM Landfill/Digester Project
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Renewable Energy from Biogas Processing “Tail Gas” With Flex

G Flare as Biogas Processing

Piping Point of Connection for FlexPowerstationTM

FlexPowerstationTM Unit #1

Utlity Site Main Switchboard Utility Transformer Electric Point of Connection for FlexPowerstationTM

Communication Point of Connection for FlexPowerstationTM Phone/Internet

FlexPowerstationTM Unit #2 thru #XX Switchboard

Existing Site Equipment

Sample Flex PowerstationTM Tail Gas Utilization Project

Tail Gas (Ultra Low Btu)

Gas Compressor To Pipeline Pipeline Quality Gas Blending Gas to Operate Flare
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Onsite Energy From Flare Gas with Flex

G Flare as Conditioning Associated Oil Field

Piping Point of Connection for FlexPowerstationTM

FlexPowerstationTM Unit #1

Utlity Site Main Switchboard Utility Transformer Electric Point of Connection for FlexPowerstationTM

Communication Point of Connection for FlexPowerstationTM Phone/Internet

FlexPowerstationTM Unit #2 thru #XX Switchboard

Existing Site Equipment

Sample Flex PowerstationTM Flare Gas Utilization Project

Collection System Flare Gas

Gas Compressor To Pipeline Pipeline Quality Gas
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Why FlexEnergy?

o Cleanest Solution

NOx emissions <1ppm, CO emissions <1ppm

o Simplest Solution

No fuel conditioning required: gas in power 

out

o Fuel Flexibility

Run your landfill/site even with Low Btu gas; 

Always be in compliance; 

No need to maintain gas quality for power 

production

o Modular Design

Simple, fast installation with local contactors 

o Least Cost Methane Destruction

Clean-up paid for by power generation
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Paul Fukumoto

Director, Programs

(949) 428-3842

paul.fukumoto@flexenergy.com

FlexEnergy

9601 Irvine Center Drive

Irvine, CA 92618

(949) 428-3830

FlexEnergy 

www.flexenergy.com