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Biomass Combined Heat and Power Catalog of Technologies

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Biomass Combined Heat and Power Catalog of Technologies ( biomass-combined-heat-and-power-catalog-technologies )

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EPA Combined Heat and Power Partnership Biomass CHP Catalog consistent energy and moisture content across all cases. Table 7-12 shows the estimated capital costs for the biomass gasification power systems. The capital requirements for the integrated systems include the prep-yard, gasifier and supporting systems, and the prime movers (reciprocating engine, gas turbine, and steam turbine generators) and supporting systems. Costs for the prep-yard, gasifier, and gas cleanup are a function of the quantity of biomass processed. The fuel gas compressor costs are a function of the size of the gas turbine. The turbine section contains various combinations and sizes of gas turbines, heat recovery steam generators, steam turbines, and supplementary firing. The costs were assumed to vary as a function of the total generating capacity. Unit costs ($/kW) are based on the net power output only. Table 7-12. Biomass Gasification Power Generation System Capital Cost Estimates Biomass Cases Atmospheric Gasification Atmospheric Gasification Atmospheric Gasification High- Pressure Gasifier Tons/day (as received) Biomass prep-yard Gasification section CHP—Maximum Thermal Generation/heat recovery equipment Total capital cost Cost ($/kW ) Power Only—No Thermal Generation/heat recovery equipment Total capital cost Cost ($/kW) 100 $2,639,700 $1,837,000 $4,740,650 $9,217,350 $2,333 N/A N/A N/A 258 $3,947,400 $15,074,000 $6,400,000 $25,421,400 $5,188 $7,920,000 $26,941,400 $4,082 452 $4,972,000 $22,736,000 $8,800,000 $36,508,000 $4,245 $11,750,000 $39,458,000 $3,400 1,215 $9,685,800 $52,020,000 $24,440,000 $86,145,000 $2,291 $28,638,000 $90,343,800 $2,319 Non-fuel O&M cost estimates are shown in Table 7-13 for each of the four gasification power generation systems. The level of O&M costs for the prep-yard is similar to the direct-fired cases and is a function of daily throughput. Gasifier O&M costs include operating and maintenance labor, supervisory labor, water, ash removal, insurance, and other operating materials. Generator O&M costs ranged from $0.0075/kWh for the largest system to $0.0175/kWh for the 4 MW reciprocating engine systems. Table 7-13. Biomass Gasification Power Generation Non-Fuel O&M Cost Estimates Biomass Cases Atmospheric Gasification Atmospheric Gasification Atmospheric Gasification High-Pressure Gasifier Tons/day (as received) Prep-yard O&M Gasifier O&M Generator/heat recovery O&M Total annual O&M 100 $400,000 $502,000 $475,000 $1,377,000 258 $320,000 $634,000 $750,000 $1,704,000 452 $320,000 $789,500 $1,145,000 $2,254,500 $0.033 $0.028 1,215 $400,000 $2,235,800 $2,225,000 $4,860,800 $0.019 $0.018 Non-fuel O&M—CHP/max thermal ($/kWh) $0.044 $0.044 Non-fuel O&M—power only ($/kWh) N/A $0.037 7. Representative Biomass CHP System Cost 92 and Performance Profiles

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