Page 238 - Sustainable On-Site CHP Systems Design, Construction, and Operations
P. 238

Obtaining a Construction Permit     211



          Cost Category              Considerations
          Capital Costs
          Emission control system direct   Include sales tax, instrumentation, freight, and other
          capital cost               capital costs for the control equipment. In some cases, the
                                     installation of control systems will also result in the need for
                                     continuous emissions monitoring system (CEMS). In these
                                     cases, the costs of CEMS must be included
          Installation cost          Include items such as foundation, handling, erection,
                                     electrical, piping, ductwork, and insulation. Costs are
                                     approximately 30% of equipment cost
          Indirect capital cost      Include engineering, construction/field expense, contractor
                                     fees, start-up costs, performance tests, contingencies. The
                                     default assumption is that costs, excluding performance
                                     test, are approximately 20% of equipment cost, and that
                                     performance tests are another 1%. The cost of regulatory
                                     tests upon equipment commissioning may be higher than
                                     the default, especially if emissions monitoring systems are
                                     installed and must be certified
          Emission mitigation cost   In some cases, emission increases are mitigated through
          avoidance                  the purchase of emission reduction credits. If the use of
                                     technology reduces these costs, the foregone costs may
                                     have to be credited against the other capital costs of the
                                     project
          Operating Costs
          System maintenance costs   Include direct labor, supervisory and consumable materials
                                     costs
          Fuel penalty costs         Include costs incurred due to reductions in operating
                                     efficiency attributed to the control technology and the
                                     additional cost differential if higher-cost fuel alternatives
                                     are utilized
          Annual reactant costs      Include costs for ammonia, urea or other reactant
          Annual emissions verification   Include cost for control system tests and additional
                                     regulatory compliance tests that would not otherwise
                                     be needed
          Catalyst cleaning and      Include an annual allowance to account for the cost of
          replacement                periodic cleaning and replacement of catalyst (materials and
                                     labor). Include disposal fees, if any
          Utilities                  Include cost of electricity, water, and other utilities needed
                                     to operate the emission control system
          Indirect operating costs   Include overhead, taxes, insurance, and administrative
                                     costs. Costs are typically 65% of operating labor,
                                     supervisory labor, and materials cost
        TABLE 12-2  Control Technology Cost Analysis Considerations
   233   234   235   236   237   238   239   240   241   242   243