Northampton Generating Company, L.P.Northampton, PA

Electricity Generation

and

Land Reclamation

Northampton Generating Plant

Project Benefits

Generate electricity for 110,000 homesPrinciple fuel is anthracite waste coal (culm) Advanced coal burning technology (CFB)Cleaner energy with low emissionsOperations conducted inside buildingsReclamation of abandoned mine sites

Rebirth of Atlas Cement Site (construction incorporated existing Atlas buildings)

Fuel Unloading Inside Fuel Building

Fuel Handling Inside Fuel Building (dust collection systems control emissions)

Fuel Capabilities

Facility Designed to Burn 7,000 Btu/lb Material Primary Fuel is Culm (Anthracite Waste Coal)Transition and Startup Fuel is PropaneCapable of Burning Solid Alternative FuelsFuels Fed via Conveyors to Silo or Blown into BoilerFuels Limited by Air (Stack) and Waste Permits (Ash)Fuels Limited by Borough of Northampton Resolution

NOT Capable of Burning Liquid Fuels (e.g. Oils)NOT a TSDF for Hazardous WasteNOT an Incinerator or Trash Burner

Permitted Fuels(Actual 2006 numbers in parenthesis)

Co-firing of Alternative Fuels w/CulmTotal Charging Rate = 105 TPH - (102 TPH) Minimum % of Fuel Mix = 50% Culm - (76% Culm) Coal (anthracite or bituminous) = 15 TPH - (0 TPH)Petroleum Coke = 32 TPH - (11 TPH) Paper Processing Residue = 25 TPH - (6 TPH)Virgin Wood Chips = 20 TPH - (0 TPH)High Carbon Ash = 50 TPH - (4 TPH)TDF (Pending Approval) = 23 TPH - (4 TPH)Propane = as needed for Start-up and Transitions

2006 Fuel Consumption

Total Solid Fuel = 813,651 tonsTotal Ash = 474,820 tonsCulm = 742,951 tons Coal (anthracite or bituminous) = 0 tonsPetroleum Coke = 23,939 tonsPaper Processing Residue = 37,522 tonsVirgin Wood Chips = 0 tonsHigh Carbon Ash = 6,266 tonsTDF = 2,972 tonsPropane = 260,682 gallons

Control Room manned 24/7

Air Emissions Continuously Monitored/Controlled

NGC Plant Emissions Comparison

Northampton Generating Company, L.P. 2004 Emissions Comparison

2.9

8.2

3.5

10.4

1.0 1.3

0

2

4

6

8

10

12

NOx SOx2004 National data from NRDC April 2006 Report, "Benchmarking Air Emissions" 2004 NGC data from AIMs report submitted to PADEP

Em

issi

on R

ates

(lb

s/M

Wh)

All Fossil FuelsCoalNGC

CFB Operation (Circulating Fluidized Bed)

CFB technology known for fuel flexibilityFuel suspended on cushion of air in boilerCombustion occurs at 1,400-1,700 deg FFuel and ash re-circulated using cyclonesAchieves higher combustion efficiencyResults in lower stack emissions Limestone injected w/fuel to reduce SOxAmmonia injected into CFB to control NOxBaghouse filters capture 99.9% of particulates

Truck Proceeding to Enter Building for Ash Loading

Limitations on Ash

Beneficial Use Permit – WMGR068“The following carbonaceous wastes: petroleum coke, uncontaminated, untreated wood chips and other paper and wood industry wastes comprised primarily of wood fibers: and the ash generated from the burning of that waste.”Limits on As, Cd, Cr, Cu, Pb, Mn, Ni, Se, Zi

Surface Mining Permits – Mod 25Coal and Ash Leachate AnalysisMaximum Acceptable Leachate ConcentrationsLimits on 17 metals, sulfate, chloride, and pH

Ash Trucks Washed after Loading prior to leaving plant

Northampton Fuel Supply Company (located in Scranton/Wilkes-Barre Area)

Culm Removed and Ash Returned

Top Soil used for Cover

Kaminski Site Before and After

Huber Site Before and After

Project Environmental Awards

1996 PA Governor's Award for Environmental ExcellenceConstruction of plant on brownfield site using advanced technology

1998 PA Governor's Award for Environmental ExcellenceReclamation of 117 Acres @ Kaminski Site

1998 DOI National Award for Excellence in ReclamationReclamation of 117 Acres @ Kaminski Site