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Levelized cost for each geothermal project The average levelized cost of the proposed geothermal projects in the beneficiary countries is US$0.118 per kWh. The levelized cost for the projects ranges from US$0.081 per kWh in Dominica Phase 2 to US$0.147 per kWh in Grenada. Table 9.5 shows the levelized cost for each of the geothermal projects. Table 9.5 Levelized Cost of Geothermal Projects in the Countries of Study Project Levelized Cost (US$ per kWh) Dominica Phase 1 Dominica Phase 2 Nevis Saint Kitts Saint Vincent and the Grenadines Grenada Saint Lucia Average 0.097 0.081 0.138 0.091 0.138 0.147 0.132 0.118 Methodology for calculating the levelized cost We calculated the levelized cost for each of the geothermal projects using the financial model used to assess the financial feasibility of the geothermal projects. The levelized cost is the per-kWh cost (in real dollars) of building and operating a generating plant over an assumed financial life. Key inputs to calculating levelized cost include capital costs, fuel costs, fixed and variable operations and maintenance costs, and financing costs.121 To calculate the levelized cost for geothermal technology, we found the total of the capital cost recovery factor per kWh, and the operations and maintenance cost per kWh. The capital expenditures recovery factor is the annualized capital costs divided by the annual output. We then added the operations and maintenance costs per kWh. Unlike many other technologies, the variable operations and maintenance costs and fuel costs of geothermal generation plants is close to zero. The best estimate of the levelized costs would include the amounts that have been invested in the past (in the stages that have been completed) and the return that investors will require on those amounts. However, we don’t have complete or reliable information on those amounts, so to calculate the levelized cost in this report we only include the investments (capital expenditures) that are required going forward. 121. U.S. Energy Information Administration, “Levelized Cost and Levelized Avoided Cost of New Generation Resources in the Annual Energy Outlook 2014,” April 2014, accessed December 11, 2014, http://large.stanford.edu/courses/2014/ph240/suresh2/docs/ electricity_generation.pdf. 67PDF Image | Unlocking Geothermal Power Eastern Caribbean Powerhouse
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