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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
2
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
5
GEM Aerial Photo
Configuration Options- Front End
Conveyor feeding
– Multiple capacities available
– Restricted card access
– Foot pedal operation
Top loading gravity feed
Options
– Compactor
6
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
7
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.
8
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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
13
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
14
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
15
16
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…
18