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8.A. - Page 123 <br /> Exhibit B. Engineering and Construction Requirements <br /> • String-level voltage (open circuit) and amperage (under load) testing for all PV strings. <br /> Amperage testing shall be performed concurrently with irradiance testing. <br /> • Inverter testing for all inverters.The inverters shall be commissioned on-site by a qualified <br /> technician and shall confirm that the inverter can be operated locally per specification <br /> and that automatic operations such as wake-up and sleep routines, power tracking and <br /> fault detection responses occur as specified. Performance testing shall be performed <br /> concurrently with irradiance testing. <br /> • Testing of all sensors of the DAS. <br /> • Testing of the Data Presentation interface of the DAS. <br /> After Seller conducts all Acceptance Testing based on the Testing Plan, Seller shall submit a <br /> detailed Acceptance Test Report to the Buyer for review. <br /> The Acceptance Test Report shall document the results of the tests conducted following the <br /> Testing Plan, and include additional information such as the date and time each test was <br /> performed. It shall also make reference to any problem and deficiencies found during testing. If <br /> there was troubleshooting done, the Report shall describe the troubleshooting methods and <br /> strategy. Seller shall be responsible for providing the labor and equipment necessary to <br /> troubleshoot the System. <br /> 5.2 System Startup <br /> Following Buyer approval of the Acceptance Test Report, Seller shall conduct tests over twenty- <br /> four (24) hours and at a time resolution of fifteen (15) minutes, recording the following data: <br /> • Average AC output (kW) <br /> • Average DC output(kW) <br /> • Hourly PV system production (kWh) <br /> • AC and DC voltage <br /> • In-plane irradiance <br /> • Ambient and cell temperature <br /> • Inverter status flags and general system status information <br /> These data points shall be presented in a manner that best depicts the actual performance of the <br /> system for Buyer review and approval and shall be submitted as part of the Startup Test Report. <br /> 5.3 Proving Period (30 days) <br /> Upon completion of Acceptance Testing and System Startup, Seller shall monitor the system <br /> during a thirty (30) day Proving Period and submit a report for Buyer review. This includes <br /> monitoring system output and ensuring the correct functioning of system components over this <br /> time. The values for the following data shall be acquired every fifteen (15) minutes over thirty <br /> Exhibit B Page 23 <br />