b'ERCOT & EARLY-STAGE PROJECT PORTFOLIO SUPPORT Lifeline Sector: Renewables | Location: TexasClearway Energy, a new company that emerged from the sale of NRG Energys renewables platform, is one of the largest clean energy companies in the United States. Its operating footprint includes 2.8 GW of wind, 1.1 GW of utility solar and over 200 MW of distributed and community solar. With several owned projects under development in Texas, Clearway needed accurate forms and studies to meet the requirements of the regional transmission operator for interconnection applications. Ulteig aided Generation Generator Interconnection Software Capabilities in this process, generating forms that reflected theUnderground cable ampacityInterconnection capacity screeningAspen Oneliner preliminary project design and PSSE models necessaryVoltage drop analysisUtility/ISO interconnectionAspen Power Flow to submit Clearways interconnection studies to ERCOT.NERC compliance analysisInterconnection process support orAspen Line Constants Ulteig also performed reactive power studies toEffectively grounded managementAutoCAD determine the sizing of reactive power compensationPre-construction harmonic analysisInterconnection applicationCDEGS equipment. Post-contruction harmonic metering completionCYME CYMCAPand analysisProject modelingEasyPower (Short circuit, loadHaving become a trusted resource to the ClearwayGround grid step, touch, and groundTransient and dynamic stability low, harmonics) team, Ulteig now offers ongoing support for early-potential risePower flow and contingency EMTP-RV stage studies, layouts and transformer spec reviewsVoltage flicker analysisETAP Transient overvoltage (TOV)Economic conductor analysisETAP ArcFault Module across Clearways growing portfolio of renewableProtective coordinationPreliminary design evaluationPSSE (loadlow and dynamic) projects. Preliminary substation, collection andZero-voltage ride-through/PRC-024Small-generator interconnectionPSCAD transmission line designs have been added to UlteigsDynamic analysisRenewable project economicMilsoft WindMil scope of work on various wind projects owned byReactive power compensation sizing sizingPLS-CAD Clearway, such as Patriot Wind and Mesquite Star. Battery energy storage systemPSLFTransmission feasibilityTARA Economic conductorTFLASH Insulation coordination SubstationSKM Power*Tools Conductor rating and selectionFault currentWindIGS Corona/audible noise/EMFArc flash Parallel circuit analysisTransformer energization AC interferenceCapacitor bank switching FEA analysisTransient recovery voltage (TRV) 5 mACurrent-limiting reactor sizing Grounded systemUlteig.com | We listen. We solve.15'