Common use of Reliability Run Clause in Contracts

Reliability Run. Contractor shall carry out a Reliability Run to demonstrate the reliable operation of the Power Plant and its Component Units under normal working conditions and under the dispatch control of the power purchaser and grid operator. The test will be recorded per the attached Test Record of the Reliability Run. The Power Plant will be operated during the Reliability Run Period (defined below) and the Reliability Run will be considered successful if during such period there are: o Not more than 5 (five) Outages (as defined below) o Not more than 16 (sixteen) aggregate Outage Hours (as defined below) o No single Outage with a duration greater than 6 (six) Outage Hours o Not more than 2 (two) Plant Shutdowns (as defined below) o Not more than 8 (eight) aggregate Outage Hours due to Plant Shutdowns o No Plant Shutdowns in the last 48 (forty-eight) hours of the Reliability Run Test Period o No second Outage which was caused by the repetition, after rectification, of a failed item of equipment which had caused a prior Outage (D-6) August 14, 2002 EPC Contract - Mokai II, New Zealand Where: -------------------------------------------------------------------------------- Outage = One or more of the Component Units is not operating under the dispatch control of the power purchaser and grid operator as a result of Equipment failure, Work design or construction defects or an occurrence or circumstance within the reasonable control of Contractor ----------------------------- -------------------------------------------------- Outage Hours = The period of time with respect to a particular Outage commencing upon the time that any or all Component Units are not under the dispatch control of the power purchaser and grid operator as a result of Equipment failure, Work design or construction defects or an occurrence or circumstance within the reasonable control of Contractor and ending upon the resumption of normal dispatch control ----------------------------- -------------------------------------------------- Plant Shutdowns = An Outage in which none of the Component Units are under the dispatch control of the power purchaser and grid operator under normal operating conditions ----------------------------- -------------------------------------------------- Reliability Run Period = 14 (fourteen) days plus the aggregate Outage Hours during the Reliability Run (if any) plus any additional hours necessary (if any) so as to not have a Plant Shutdown during the last 48 (forty-eight) hours of such period -------------------------------------------------------------------------------- Contractor must disclose to Owner the fault and remedy or rectification action taken with respect to each Outage. The Reliability Run must be repeated in its entirety if a Reliability Run is unsuccessful or is terminated by Contractor before the end of the Reliability Run Period. The Geothermal Fluid should be within the Design Range during the Reliability Run Period. If the Geothermal Fluid is outside the Design Range, Contractor in its sole discretion reserves the right to continue the Reliability Run where in its opinion the test can be run without compromising the safety and reliability of the Power Plant. (D-7) August 14, 2002 EPC ▇▇▇▇▇▇▇▇ - ▇▇▇▇▇ ▇▇, ▇▇▇ ▇▇▇▇▇▇▇

Reliability Run. After the Contractor shall carry out a Reliability Run has completed the Handling Trials, the Performance Tests described in paragraph 1.5.9 to demonstrate the Binary Plant's Net Power Output and the Pressure Drop across the Binary Plant, and has notified the Owner, the Binary Plant will be required to successfully complete a reliability test. The twenty-one (21) day Reliability Run will demonstrate the continuous and reliable operation of the Power Binary Plant and its Component Units under normal working conditions and under at rated load. During this test, the dispatch control of the power purchaser and grid operator. The test will be recorded per the attached Test Record of the Reliability Run. The Power Binary Plant will be operated during available for dispatch, so actual generated output may vary, and the Binary Plant shall demonstrate that it is capable of stable operation throughout the test period as per test criteria described hereunder. The Binary Plant will run under automatic control mode. The criteria for passing the Reliability Run Period (defined below) and the Reliability Run will be considered successful if during such period there are: o Not more than 5 (five) 2 Outages (as defined below) o Not more than 16 (sixteen) 8 aggregate Outage Hours (as defined below) o No single Outage with a duration greater than 6 (six) Outage Hours o Not more than 2 (two) 1 Plant Shutdowns Shutdown (as defined below) o Not more than 8 (eight) 4 aggregate Outage Hours due to Plant Shutdowns o Shutdown No Plant Shutdowns Shutdown in the last 48 (forty-eight) hours of the Reliability Run Test Period o No second Outage which was caused by the repetition, after rectification, of a failed item of equipment which had has caused a prior Outage (D-6) August 14, 2002 EPC Contract - Mokai II, New Zealand Where: -------------------------------------------------------------------------------- Outage = One or more Outage. 3.1 of the Component Units is not operating under the dispatch control of the power purchaser and grid operator as a result of Equipment failure, Work design or construction defects or an occurrence or circumstance within the reasonable control of Contractor ----------------------------- -------------------------------------------------- Outage Hours = The period of time with respect to a particular Outage commencing upon the time that any or all Component Units are not under the dispatch control of the power purchaser and grid operator as a result of Equipment failure, Work design or construction defects or an occurrence or circumstance within the reasonable control of Contractor and ending upon the resumption of normal dispatch control ----------------------------- -------------------------------------------------- Plant Shutdowns = An Outage in which none of the Component Units are under the dispatch control of the power purchaser and grid operator under normal operating conditions ----------------------------- -------------------------------------------------- Owner's Technical Requirements ---------------------------------------------------------------------- Reliability Run Period = 14 (fourteen) 21 days plus the aggregate Outage Hours during the Reliability Run (if any) plus any additional hours necessary (if any) so as to not have a Plant Shutdown during the last 48 (forty-eight) hours of such period -------------------------------------------------------------------------------- Contractor must disclose to Owner the fault and remedy or rectification action taken with respect to each Outage). ---------------------------------------------------------------------- EPC Wairakei The Reliability Run must be repeated in its entirety if a Reliability Run is unsuccessful or is terminated by Contractor before the end of the Reliability Run Period. Period The Geothermal Fluid should be within the Design Range during the Reliability Run Period. If the Geothermal Fluid is outside the that Design Range, Contractor in its sole discretion reserves reserve the right to continue the Reliability Run where in its opinion the test can be run without compromising the safety and reliability of the Power Binary Plant. (D-7) August 14Minor defects, 2002 EPC ▇▇▇▇▇▇▇▇ - ▇▇▇▇▇ ▇▇such as instrument faults or equipment faults requiring the operation of standby plant, ▇▇▇ ▇▇▇▇▇▇▇shall not constitute a failure of the Reliability Run test, provided that the overall Binary Plant continues to operate satisfactorily and that the faults are rectified and are not persistent. The Operating Personnel will operate the Binary Plant during the Reliability Run under the direction, supervision and control of the Contractor. The Contractor may request permission to carry out any minor adjustments which may be necessary for reliable operation.