Distributed Generation Update - Settlement-Only DG in ERCOT 2010-2020
ERCOT has been discussing the capture and inclusion of unregistered DG in their network model. Presentations and proposals have been made regarding this issue, with future workshops planned to explore new methods for reporting UDG. Next steps involve gathering data from TDSPs and NOIEs to address long-term viability concerns for handling larger volumes of information regarding unregistered DG.
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Distributed Generation Update SAWG 2/5/2021
Settlement-Only Distributed Generation in ERCOT 2010-2020 400 Units 1000 MW SODGs Non-Renewable # Units 233 MW 598 900 MW Renewable + Storage 59 333 350 Units TOTALS 292 931 800 MW 300 Units SODGs are: <10 MW If >1 MW and inject to grid, must register with ERCOT If <1 MW, registration optional 700 MW Accumulated 250 Units Count 600 MW 200 Units 500 MW 400 MW 150 Units Non-renewables 300 MW 100 Units 200 MW 50 Units 100 MW Renewables 0 Units 0 MW 2 PUBLIC
Discussion on Unregistered DG ERCOT has presented at various modeling group meetings on how to capture Unregistered DG Aug 2020-Jan 2021 SSWG mtgs Presentations typically not posted Sept/Oct 2020 PLWG mtgs http://www.ercot.com/content/wcm/key_documents_lists/191727/DER_Proposal_Update_October2020_RPG_PLWG.PDF Nov 2020 PWG http://www.ercot.com/content/wcm/key_documents_lists/195117/PWG_Load_Profile_Proposal_11062020_V1.pptx 2017 DER Reliability Whitepaper outlined the future requirement for Including accumulations of unregistered DG in the ERCOT network model http://www.ercot.com/content/wcm/lists/121384/DERs_Reliability_Impacts_FINAL.pdf 3 PUBLIC
Next Steps Unregistered DG values reported from TDSPs Premise data provided as part of Load Profile Template Excel spreadsheet method was originally acceptable for small numbers of Unregistered DG Not really viable long-term for larger volumes of information(>2,000/month) Unregistered DG values reported from NOIEs Aggregate values provided per NPRR891 Annual or Quarterly basis depending on amount in NOIE New method(s) for reporting accumulations of UDG will be needed Series of Workshops will be held First workshop limited to TDSPs and NOIEs to better understand options. Feb 19 http://www.ercot.com/calendar/2021/2/19/223989 Future workshops will be open to the wider audience 4 PUBLIC
