Mild winter temperatures across the U.S. west reduced generation during the period.
The three operating plants produced 95,926 megawatt-hours during the first quarter, which compares to 98,884 megawatt hours during the first quarter of 2014, a 3% reduction in generation. Mild winter temperatures across the west, which averaged 6-7°F warmer than normal during the quarter, reduced generation during the period. Planned annual maintenance outages for all three facilities will take place during the second quarter.
An updated steam reserve estimate for the WGP Geysers project, California, which incorporated the past five years of wellfield pressure data and the increased injection rate from the hybrid plant design, was completed in March by an independent geothermal reservoir consulting firm. The report supports past analysis that the project has 30 megawatts gross steam capacity already behind pipe and that a 27.4 net megawatt plant can be supported for a 20-30 year project life. A detailed reservoir analysis will be prepared upon completion of the flow test planned for this spring. Upon completion of the reservoir analysis and power plant optimization, the size of the new plant will be finalized.
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