German Nigeria Technology Transfer

The “GEM”(Green Energy Machine)

Landfill Diversion & Clean Energy Generation

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

3 – Lowers energy costs

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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

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 GEMoperation via wireless network interface

Customer has access to a summary screen of operational data

Many data points compiled to generate a real-time kiosk

8 screen.

Thermal decompositionprocess

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)

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

Emis

sion

s Sa

ving

s in

Ton

s (C

O2E

)1,200

Annual Greenhouse Gas Savings vs. Landfills1,090

1,000330

800

Heat

600

400 315

440 440 446 WasteDisposal

Electricity

200177 440 440

314

138

0

Incineration withEnergy Capture

Solar Wind GEM

• 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

Gas Component U.S. Metric Standard GEM Results

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

SO230 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

Metric Standards

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

GEM WeightWeight by Component and Energy Configuration

ComponentDiesel CHP Boiler

Pounds Tons Pounds Tons

Main Container

Back End

Auxiliary Equip

47,200

8,760

14,300

23.6

4.4

7.2

47,200

14,800

14,300

23.6

7.4

7.2

Total Weight 70,260 35.1 76,300 38.1

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GEM Operating History

Operating Parameter Data

Run Time (Hours)

Waste Processed (Tons)

Ash Disposed (%)

5,444

525

5.6

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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)

Investment = $1.1M Scenario 1 Scenario 2

UnitPrice

AverageAnnualSavings

Unit PriceAverageAnnualSavings

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

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

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

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

24/6 Operation

Feasibility Assessment ProcessQualify 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

17 • Includes informed ROI data and installation considerations

The GEM…

…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

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