LFG Landfill Gas CHP Combined Heat and Power

Transcription

1 Tropicana LFG CHP Project LFG Landfill Gas CHP Combined Heat and Power

2 FP LFG CHP Project Overview Objective Create ability to beneficially utilize the increased flow of landfill gas that is being generated by the St. Lucie landfill. LFG cost indexed at a percentage of natural gas cost Renewable energy Technology Uses a Caterpillar 3250C reciprocating engine to drive the generator Over 100,000 in use with over 1000 being used in biogas applications Engine exhaust heat is used to make steam also using off the shelf technology Convert existing Kewanee Boiler #3 to burn landfill gas Custom conversion but already successful on Boiler #2

3 FP LFG CHP Project Highlights CAR Request - $ 5.1 MM 30% Federal Investment Tax Credit 50% First Year Bonus Depreciation Net Cost - $ 3.7 MM Sustainability Benefits 12.8 MM kwh /year of renewable electricity Represents over 20% of Ft. Pierce s 2010 annual electrical usage 31.9 M dekatherms incremental reduction of natural gas purchases Ft. Pierce s gas will over 20% renewable based on prior annual usage Cogeneration represents increased efficiency as waste heat from electrical generation is used to make steam IRR, Under 7 year payback 15.0 IRR, Under 7 year payback Includes an Extended Service Agreement Preventative and Corrective Actions Major rebuilds

4 DSIRE Site Excerpt from Federal Investment t Tax Credit Incentives * The American Recovery and Reinvestment Act of 2009, which allows PTC- eligible ibl facilities to use the 30% ITC, has implications for some technologies that t were already potentially eligible for either incentive in some form. Certain geothermal and open- or closed- loop biomass systems (including biomass CHP projects) now qualify for a 30% tax credit through December 31, 2013, the in-service deadline for these technologies under the PTC. Wind-energy systems of all sizes -- not only systems of 100 kw or less -- also now qualify for the 30% ITC through the wind-energy PTC in-service deadline of December 31, Applicants should refer to the eligibility definition contained in the PTC to determine if and how their project might qualify for this treatment.

5 The Saint Lucie County Landfill

6 Boiler Room Layout with CHP Engine

7 TROPICANA FT. PIERCE LANDFILL METHANE GAS ELECTRICAL GENERATION SYSTEM WASTE HEAT IS LOST TO ATMOSPHERE THE 25 KW OF ENERGY TO DRIVE THE RADIATOR FAN REPRESENTS A PARASITIC LOAD AND REDUCES THE OVERALL SYSTEM EFFICIENCY

8 TROPICANA FT. PIERCE LANDFILL METHANE GAS CO-GENERATION SYSTEM WASTE HEAT IS RECOVERED TO GENERATE STEAM

9 TROPICANA FT. PIERCE LANDFILL METHANE GAS TRI-GENERATION SYSTEM ( NEAR FUTURE ) 1. ELECTRICITY 2. STEAM THE HOT COOLANT FROM THE ENGINE JACKET IS USED 3. HOT WATER TO PRE-HEAT WATER FEEDING THE DE-AERATOR. THIS, IN TURN COOLS THE JACKET WATER REMOVING HEAT LOAD FROM THE RADIATOR AND SLOWING DOWN THE RADIATOR FAN

10 Project Results Environmental Benefits Generator kw x 7500 hrs/yr = 8467 tons HRSG lbs steam (27.5 therms/hr) x 7500 hrs/yr = 1094 tons Jacket Water (25.7 therms/hr) x 7500 hrs/yr = 1023 tons Boiler (45 therms/hr) x 8000 hrs/yr = 1910 tons TOTAL = 12,494 Metric Tons CO2 Reduction per year Equivalent to a reduction of 2603 automobiles Financial Benefits Long term income stream for St. Lucie County Annual cost savings for Tropicana Maintenance and service agreements provide long term employment

11 FP Co-Gen Performance-to-date 100.0% 90.0% 80.0% Co Gen Performance (System (y Efficiency) 89.4% 82.5% 78.0% 75.5% Produced 70.0% 60.0% 50.0% 60.8% 59.1% 58.8% 63.9% 63.2% KWH 40.0% 30.0% 20.0% 10.0% 0.0% 0.8% P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 YTD Total Co Gen System Efficiency

12 Thanks to following Dave Pero Engineering Clearwater, Florida JH Ham Engineering Lakeland, Florida Phoenix Enclosures Jacksonville, Florida CDM Smith Engineering Vero Beach, Florida Electro-Design Engineering Riverview, Florida Florida Power and Light Juno Beach, Florida Ring Power Corporation St. Augustine, Florida Support sites in Palm Bay, Florida and Brandon, Florida (Long Term Service Contract) t) Bubba s Rock and Equipment. Fort Pierce, Florida R and K Welding and Fabrication Lake Hamilton, Florida Devtech Sales Avon Park, Florida PA Equipment (Insulation) Auburndale, Florida PLUS ALL THE FOLKS THAT SUPPLIED MATERIALS TO THEM. THE RESTAURANTS THAT FED THEM, and THE HOTELS THAT HOUSED THEM Engine manufactured by Caterpillar Peoria, ILL and Lafayette, IND