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TCAAP Energy Integration Resiliency Framework Energy Source Implementation 28 acres selected for the solar PV plant project is $1,250,000. For this analysis, the cost has been assumed to be incurred by the project; however other sources of funding may be available. Operation and maintenance (O&M) costs are incurred on an annual basis and are the costs associated with keeping the plant in proper working order. Common tasks associated with annual O&M activities include preventative maintenance, inspection, and corrective maintenance. O&M costs are often presented as a cost per installed kilo-Watt ($/kW) to be incurred every year. When presented as a $/kW cost, it is assumed that this cost will be incurred annually. Table 4 provides an approximation of capital costs and O&M costs for the proposed 8MWac system. Solar PV Costs $/W Total Solar PV Plant Cost $2.10/WDC; $2.73/WAC $21,850,000 Site Redevelopment Cost $0.12/ WDC; $0.13/ WAC $1,250,000 Total Project Capital Cost $2.22/WDC; $2.86/WAC $23,100,000 O&M Cost $16/kWAC/year $128,000/year Table 4: Proposed solar PV capital, operation, and maintenance costs 3.1.4. Solar Resource Assessment and Energy Production The annual energy production for the proposed array can be estimated with the use of the National Renewable Energy Laboratory (NREL) Solar Advisor Model (SAM). SAM uses a collection of input parameters to construct a model of the PV plant and analyze the energy production characteristics. These input parameters include: site location and meteorological data, module characteristics, inverter performance characteristics, solar array dimensions, system losses, and a collection of financial parameters. Using this information, SAM constructs a model of the solar arrays and then predicts plant performance over a typical meteorological year. The basic technical assumptions that were utilized to estimate the solar resource assessment and annual energy production from the solar array are provided in Table 5.