CAISO Monthly Billed Fuel Cost [for Geysers Main only] The CAISO Monthly Billed Fuel Cost is given by Equation C2-1. CAISO Monthly Billed Fuel Cost Equation C2-1 = Billable MWh ◆ Steam Price ($/MWh) Where: • Steam Price is $16.34/MWh. • For purposes of Equation C2-1, Billable MWh is all Billable MWh Delivered after cumulative Hourly Metered Total Net Generation during the Contract Year from all Units exceeds the Minimum Annual Generation given by Equation C2-2. Equation C2-2 Minimum Annual Generation = (Annual Average Field Capacity ◆ 8760 hours ◆ 0.4) - (A+B+C) Where: • Annual Average Field Capacity is the arithmetic average of the two Field Capacities in MW for each Contract Year, determined as described below. Field Capacity shall be determined for each six-month period from July 1 through December 31 of the preceding calendar year and January 1 through June 30 of the Contract Year. Field Capacity shall be the average of the five highest amounts of net generation (in MWh) simultaneously achieved by all Units during eight-hour periods within the six-month period. The capacity simultaneously achieved by all Units during each eight-hour period shall be the sum of Hourly Metered Total Net Generation for all Units during such eight-hour period, divided by eight hours. Such eight-hour periods shall not overlap or be counted more than once but may be consecutive. Within 30 days after the end of each six-month period, Owner shall provide CAISO and the Responsible Utility with its determination of Field Capacity, including all information necessary to validate that determination. • A is the amount of Energy that cannot be produced (as defined below) due to the curtailment of a Unit during a test of the Facility, a Unit or the steam field agreed to by CAISO and Owner. • B is the amount of Energy that cannot be produced (as defined below) due to the retirement of a Unit or due to a Unit’s Availability remaining at zero after a period of ten Months during which the Unit’s Availability has been zero. • C is the amount of Energy that cannot be produced (as defined below) because a Force Majeure Event reduces a Unit’s Availability to zero for at least thirty (30) days or because a Force Majeure Event reduces a Unit’s Availability for at least one hundred eighty (180) days to a level below the Unit Availability Limit immediately prior to the Force Majeure Event. • The amount of Energy that cannot be produced is the sum, for each Settlement Period during which the condition applicable to A, B or C above exists, of the difference between the Unit Availability Limit immediately prior to the condition and the Unit Availability Limit during the condition.
