Landfill Diversion & Clean Energy Generation

The “GEM”

(Green Energy Machine)

www.mswpower.com

The “GEM” at the Plymouth (MA) County Correctional Facility

GEM Overview

The GEM is a Landfill Diverter

– Transforms useless waste into valuable clean energy

Handles mixed waste streams

– Paper, plastic, wood, food, agricultural waste

– Processes up to 3 tons/day

Diverts unrecyclable waste from landfill

Complements existing recycling programs

Occupies a compact footprint (45’ x 9.5’ x 8’)

– Plus Front End/Back End

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GEM Benefits

Helps achieve sustainability goals

Processes waste on-site where it is

generated

Eliminates landfill use by 95%

– 5% ash may be placed in landfills or re-

purposed

Saves money

– Eliminates 95% of waste hauling fees

– Lowers energy costs 3

What’s Included

GEM (45’ ISO container)

– Solid waste pre-processor (shredder, drier, pellet mill, pellet hopper)

– Gasifier

– Non-ferrous and ferrous metal separation

– Safety features (TUV certification)

– Fire suppression

Automatic ash removal

Standard front loader

Back-end for energy generation (generator or boiler) & switch gear for

generator

Regular design services & permitting assistance

Installation and commissioning

90-day labor warranty (next day, 8 X 5)

1 yr parts warranty

Remote monitoring service 4

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GEM Aerial Photo

Configuration Options- Front End

Conveyor feeding

– Multiple capacities available

– Restricted card access

– Foot pedal operation

Top loading gravity feed

Options

– Compactor

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Configuration Options– Back End

CHP

– Power

Hybrid fuel genset uses synthetic gas

blended with diesel

– Heat

Engine and exhaust heat are recovered

for use by facility

Heat only

– Boiler runs on synthetic gas

– Provides hot air, hot water, or steam

– Heat used by facility

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Remote Monitoring & Controls

Over 100 sensors installed throughout the GEM measure a

wide array of parameters

Wealth of data provides analysis capabilities

– Anticipate potential maintenance requirements

– Evaluate cost savings

– Determine environmental benefits

MSW Power engineer remotely monitors details of GEM

operation via wireless network interface

Customer has access to a summary screen of operational

data

Many data points compiled to generate a real-time kiosk

screen.

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Thermal decomposition

process

Converts solid matter into

gaseous form

Resultant gas is flammable

GEM methodology –

Downdraft Gasification

– Uses high heat in oxygen-

starved process to convert

solids into gaseous fuel or

“syngas”

– Vacuum pulls gas thru

bottom of gasifier with no

emissions

– Small-scale efficiency

– Low-tar gas producing

system

Gas Data & Noise Level

Gas Composition (% of Volume)

– Nitrogen 44%

– CO 22%

– Hydrogen 18%

– Methane 3%

– Water 8%

– CO2 5%

Gas Energy Content - 160 to 200 BTU/cu ft

Noise Levels

– SWP = 65dB at (Pellet Mill Doors)

– Gasifier = 66dB (at GEM Container Corner)

– SWP + Gasifier + Boiler = 68dB (next to GEM Container)

– SWP + Gasifier + Generator = 75dB (23 feet from GEM) 10

0

200

400

600

800

1,000

1,200

Incineration withEnergy Capture

Solar Wind GEM

138

440 440

314

177

446

330

E

mis

sio

ns

Sa

vin

gs

in

To

ns

(C

O2E

) Annual Greenhouse Gas Savings vs. Landfills

Heat

WasteDisposal

Electricity315

440 440

1,090

• Landfills produce 420 tons of GHG emissions annually to dispose of 3 tons of waste daily.

• Utilities produce 440 tons of GHG annually to create 75kW of electricity daily.

• Utilities produce 330 tons of GHG annually to create 180 kW of heat daily

Diesel Engine Emissions

Metric Standards

US: EPA 40 CFR 89.112 Tier 3 Nonroad Diesel Engine Emission Standard (75 < kW < 130) 12

Gas Component U.S. Metric Standard GEM Results

CO 3.7 g/bhp-hr .95 g/bhp-hr

SO2

30 ppm

(by dry volume) 18 ppm

NOx 3.0 g/bhp-hr 2.91 g/bhp-hr

Particulate Matter .22 g/bhp-hr .16 g/bhp-hr

GEM Weight

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Weight by Component and Energy Configuration

Component

Diesel CHP Boiler

Pounds Tons Pounds Tons

Main Container 47,200 23.6 47,200 23.6

Back End 8,760 4.4 14,800 7.4

Auxiliary Equip 14,300 7.2 14,300 7.2

Total Weight 70,260 35.1 76,300 38.1

GEM Operating History

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Operating Parameter Data

Run Time (Hours) 5,444

Waste Processed (Tons) 525

Ash Disposed (%) 5.6

Return on Investment

Individualized payback modeling completed for each client

Client provides input on payback variables

– Waste volume

– Waste composition

– Waste disposal cost

– Electricity cost

– Heat cost

– Preferred options & customizations

– Tax incentives

Payback period significantly shorter than alternatives

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Sample Payback Scenarios (Diesel CHP)

Above based on 8,185 Btu/lb feedstock (Paper – 50%; Food – 30%; Plastic - 20%), 66kWe net power, 182kWth net heat

24/6 Operation

Investment = $1.1M Scenario 1 Scenario 2

Unit

Price

Average

Annual

Savings

Unit Price

Average

Annual

Savings

Electricity (kW h) $0.27 $141K $0.14 $80K

Heat (MBtu) $15 $74K $10 $54K

Waste Disposal (tons) $125 $109K $80 $76K

Other Net Savings

(Costs) ($54K) ($76K)

Total $269K $134K

Payback Periods (Years)

$1.1M - Before Tax 4.1 8.2

$1.1M - After Tax 2.5 4.8

Feasibility Assessment Process

Qualify during initial conversation

• Salesperson expertise

Gather site data

• Email questionnaire

Run preliminary payback model

• Modeling tool

Collect more specific data during site visit

• Site Implementation Engineer assessment

Deliver preliminary proposal

• Includes informed ROI data and installation considerations 17

…converts waste into

clean energy

…requires no special

knowledge to operate

…integrates seamlessly

into your waste

management processes

…saves the environment by reducing landfill and fossil fuel

use

…saves money by reducing

trash hauling and utility

costs

The GEM…

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