Presentation on theme: "Open Solar Performance and Reliability Clearinghouse DOE Briefing oSPARC September 2013 osparc.sunspec.org 1."— Presentation transcript:
Open Solar Performance and Reliability Clearinghouse DOE Briefing oSPARC September 2013 osparc.sunspec.org 1
Today’s Presenters Tom TansyJohn Nunneley
Agenda Introduction to SunSpec Alliance oSPARC background oSPARC project details How to get involved Questions & Answers
Currently Available Specifications Gateway Data Store Custom Apps Bulk Data Exchange Bulk Data Exchange Finance Risk Assessment Finance Risk Assessment Grid Operations Grid Operations SCADA Regulatory Reporting Solar Plant Enviro Inverter Meter String Module Storage Applications Internet VPN End-To-End Security, Monitoring & Control Cloud
Standards Drive Innovation and Value Value Innovation Performance Cost Complexity Risk
oSPARC & Securitization Background Part of “Solar Access To Public Capital” initiative Goal to lower cost of borrowing via standardization and securitization oSPARC is the actuarial database to assess long-term performance and health of plants
Open Solar Performance and Reliability Clearinghouse - Project Objectives Establish construct for information exchange Plant Owners Banks Service providers Define metrics for risk assessment Critical Measurements & Ratings Key Performance Indicators Quality factors Build network/database of participating solar PV plants Plants report once per day Network geographically distributed across U.S. Anonymized to protect consumers Provide access to database by financial industry Assess plant performance and reliability over time Build confidence in the asset class
Construct for Information Exchange Capital at Favorable RatesQuality PV Plants and Data Open Actuarial Database CAPITAL PROVIDERBORROWER SUPPLIERS Open Information Access
Back-Up Points of Measurement At PV Plant PV Array Utility Grid Facility Load Energy Storage Inverter Source: IEC 61724
oSPARC Implementer’s Guide
Investment Risk Assessment for the U.S. Solar Fleet oSPARC Portfolio Manager Query Anonymized Results
Open Solar Performance And Reliability Clearinghouse Index (oSPARC) Index Identify best performing plants with highest quality data Measured Performance & Reliability Measurement Confidence (Data Quality)
oSPARC Sample Query
oSPARC Sample Report
Key Performance Indicators KPIDescriptionFormula PRPerformance RatioYf/Ye PRtcPR CompensatedYf tc/Ye PRdcDC Performance RatiokWdc / Pdc PPIAC Performance RatiokWac / Pe DerateActual Derate Ratio(kWac / kWdc) / Kderate AIAvailability IndexNormalized Availability HIHealth IndexRatio of active faults to equipment QdData Quality IndexRatio of missing and invalid data samples oSPARCoSPARC IndexBlended Overall Score oSPARCpoSPARC PercentilePercentile of SPARC Index
What We Are Asking For? Your participation in the development process End-to-end transparency Pick the right metrics Comfort that your organization won’t be disadvantaged Data from power plants
What We Offer In Return Anonymity Opportunity to improve system for the overall benefit of the industry Access to anonymized results
What’s In It For You? Project developer/fleet operator Access to capital at dramatically lower rates Equipment manufacturer or service provider Opportunity to differentiate on quality Solar industry Scale up deployment, increase total system quality
Questions and Answers
21 Thank You Expanding the Solar PV Market Through Data Standards and Interoperability Contact Tom Tansy for more information - -
Plant Information ParameterDescription UUIDThe Universally Unique Identifier of the plant. This string value distinguishes this Plant from all others. The UUID is created and assigned when the Plant is first provisioned in the database. NameCommon name of the Plant. LocationPhysical location of the plant. ParticipantsInstaller, Owner, O&M provider, Energy Off-Taker, Jurisdiction. Activation DateThe date the Plant was put into operation and began delivering energy to the Off-Taker. Array InfoFor each array: kWdc stc, Area (m2), module type, orientation, tracker type, fixed tilt, fixed azimuth, height from roof. Plant DesignPlant class, inverter class, tracker class, DC-optimized, environmental measurement source.
Device Information ParameterDescription Module InfoFor each Mfr/Model: Wdc STC rating, Area Area (m2), temperature coefficient, total number of modules. AC Meter InfoFor each Mfr/Model: Uncertainty, total number of meters. Inverter InfoFor each Mfr/Model: kWac rating, total number of inverters. Combiner InfoFor each Mfr/Model: Wdc stc rating, total number of combiners. Weather InfoFor each Mfr/Model: Pyranometer class & orientation (ghi/dni/poa). *STC = Standard Test Conditions
Plant Ratings ParameterDescription kWdc stcCombined total DC Watt rating of all arrays under standard test conditions. kWpNominalAC power rating of the plant. KderateAs designed plant de-rate factor.
Plant Electrical Measurements ParameterDescription kWhgLifetime AC energy generated from plant. kWacAC real power output. VacAC Voltage. IacAC Current. HzAC Frequency. PFPower Factor.
Array Level Measurements ParameterDescription GpoaIrradiance in the plane of the array. HpoaLifetime irradiation over the plane. TbomBack of module temperature. kWdcDC power output. kWhdcLifetime DC energy generated from plant. VdcDC Voltage. IdcDC Current.
Other Plant Environmental ParameterDescription GghiGlobal Horizontal Irradiance reference. TambAmbient Temperature. SwWind Speed. RHRelative Humidity. hPaBarometric Pressure.
Plant Availability and Status ParameterDescription OperatingConnected and able to generate power. StandbyIncludes starting up, shutting down, test mode. EnvEnvironmental conditions are out of specification. (e.g. Not enough sunlight to generate power.) GridThe grid interconnection is out of specification. (e.g. Voltage or frequency violations caused Plant to trip off.) ShutdownOperator requested shutdown for maintenance, testing, or other purposes. ForcedOutage due to Plant failure. EmergencyShutdown due to force majeure. Extraordinary event beyond the control of the operator. XNumber and type of active faults, Timestamp of oldest active.
Net Energy Measurements ParameterDescription kWhpLifetime AC energy imported to plant (parasitic losses). kWhlLifetime AC energy exported to facility loads. kWhxLifetime AC energy exported to grid. kWhiLifetime AC energy imported from grid. kWhcLifetime AC energy charged to storage. kWhdLifetime AC energy discharged from storage.
Plant Performance Calculations KPIDescriptionFormula YfFinal YieldkWhg / kWdc stc YeExpected YieldHpoa / Gstc KtempTemperature Correction[1 + μ (Tcell - 25)] Yf tcFinal Yield CompensatedkWhg / (kWdc stc * Ktemp) PdcExpected DC PowerkWdc stc * (Gpoa/Gstc) * Ktemp PacExpected AC Real PowerPdc * Kderate PRPerformance RatioYf/Ye PRtcPR CompensatedYf tc/Ye PRdcDC Performance RatiokWdc / Pdc PPIAC Performance RatiokWac / Pe DerateActual Derate Ratio(kWac / kWdc) / Kderate AIAvailability IndexNormalized Availability HIHealth IndexRatio of active faults to equipment QdData Quality IndexRatio of missing and invalid data samples oSPARCoSPARC IndexBlended Overall Score oSPARC p oSPARC PercentilePercentile of SPARC Index
oSPARC Plant Query Parameters Query Date Range for Report Period Location Information Size Range Equipment Type Design Parameters Response Anonymized Report “Plants Like These” Key Performance Indicators