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2011 La Crosse County Disposal System Meeting May 4, 2011

2011 La Crosse County Disposal System Meeting May 4, 2011. Xcel Energy Company Profile. Regulated operations in 8 Western and Midwestern States Provide electricity to 3.4 million customers Provide gas service to 1.9 million customers 11,223 employees. Wisconsin and Michigan Operations.

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2011 La Crosse County Disposal System Meeting May 4, 2011

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  1. 2011 La Crosse County Disposal System MeetingMay 4, 2011

  2. Xcel Energy Company Profile • Regulated operations in 8 Western and Midwestern States • Provide electricity to 3.4 million customers • Provide gas service to 1.9 million customers • 11,223 employees

  3. Wisconsin and Michigan Operations • Customers Electric ~ 250,000 Gas ~ 106,000 • Employees Wisconsin – 1,086 Michigan – 20 • Communities Served Wisconsin – 213 Michigan – 10

  4. NSP Fuel Mix 2010 2020 Nuclear 30% Nuclear 30% Biomass 2% Biomass 1% Wind 9% Other 1% Other 7% Wind 19% Hydro 6% Hydro 8% Natural Gas 12% Natural Gas 7% Coal 37% Coal 31%

  5. Environmental Leadership • #1 renewable energy provider in Wisconsin • #1 wind energy provider in nation • #5 in U.S. for solar capacity (over 5,000 photovoltaic installations = ~ 48 MW) • #29 of top 50 for “Green fleets” = >570 alternative-fuel vehicles in our fleet (hybrid electrics, compressed nat. gas, flex-fuel, propane, biodiesel)

  6. Environmental Leadership (cont.) • Research • Partnering with the Solar Technology and Acceleration Center (SolarTAC) to test and demonstrate advanced technologies for the emerging solar market. • At our Cameo plant in CO, we are testing the commercial viability of concentrating solar energy to provide heat to produce supplemental steam to reduce overall consumption of coal. • Provided funding for solar panels and energy-efficient lighting at universities in CO and MN.

  7. Partnership with La Crosse County • Helped fund a study for La Crosse County and the city of La Crosse to examine future options for collecting solid wastes, recyclables, and the funding for those services to improve services and be more cost effective.

  8. French Island Plant Operations • 32 MW • Produces enough energy to serve ~10,000 homes, displacing over 10,000 tons of coal annually • 29 full time employees • 24 hrs/day, five days per week • Safety – Over four years with zero lost-time accidents • Provided plant tours to 838 citizens in 2010

  9. Environmental Performance • Annual tests conducted on each boiler • 2010 stack test results compared to 2001 stack test results show the following: • Dioxins/furans 96% • Lead 99% • Cadmium 94% • Mercury 96% • Particulate Matter 80% • Hydrogen Chloride 98%

  10. Environmental Performance • Continuous Monitors • Sulfur dioxide • Nitrogen oxides • Carbon monoxide • Opacity • Biomass is Burned with the RDF • ~57,000 tons wood biomass annually • ~50,000 tons of RDF annually

  11. Environmental Performance • Air Pollution Control Devices at the Plant • Fabric Filter Baghouses: Particulate Control devices that remove metals and dioxins associated with particles, and any vapors that adsorb to the particles. • Lime Injection: Removes both acid gases (hydrogen chloride and SO2) and particulate matter • Urea Injection: Reduces NOx emissions • Activated Carbon Injection: Reduces dioxin and mercury (50% – 75% removal). Particles adsorb onto the carbon.

  12. Environmental Performance -Recycling • Communities with waste-to-energy plants have a 20% higher recycling rate (on average) than communities without waste-to-energy • In 2010, the French Island plant sent 1482 tons of ferrous metals off-site for recycling • Installed a non-ferrous metal separator in 2010 to collect aluminum and tin cans for recycling

  13. Environmental Performance: GHG Reporting • Since 1/1/2010, the French Island plant has reported its CO2e emissions to the EPA. The new reporting rule requires quarterly flue gas analysis to identify the portion of the gas that is shown to contain biogenic (renewable) carbon as opposed to “fossil” carbon. The plant’s 2010 samples showed an average biogenic carbon content of > 70%. CO2e = CO2, methane, nitrous oxide and fluorinated gases such as SF6

  14. Waste-to-Energy Air Emissions Compared to Fossil Fuel Plants (pounds/MWH)

  15. 2010 Plant Maintenance/Improvements • Installed non-ferrous metal separator to remove aluminum and tin for recycling. • Purchased large Vacuum Truck • Purchased new primary disc screen and spare flail mill spindle for RDF processing plant • Replaced RDF rotary feeders, metering bin augers and walls • Replaced #1 economizer and air heater bypass • Improved lighting in RDF plant and steam plant

  16. Statement by EPA • “Waste to Energy plants produce electricity with less environmental impact than almost any other source of electricity.” – (Letter from Marianne Lamont Horinko, Assistant Administrator, USEPA to Maria Zannes, President, Integrated Waste Services Association, February 14, 2003)

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