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Energy Transition, Renewables
July 01, 2026
Below is a summary of the updates made to the US Renewable Energy Certificates symbols, description and frequency. Effective from July 1.
From:
| MDC | Symbol | Bates | Dec | Freq | Curr | UOM | Description |
| MPC | ADJAH00 | c | 3 | WA | USD | MTC | ERCOT Emissions Adjusted Green-e Eligible Wind REC Current Year Vintage FH |
| MPC | ADJAH03 | c | 3 | MA | USD | MTC | ERCOT Emissions Adjusted Green-e Eligible Wind REC Current Year Vintage FH MAvg |
| MPC | ADJAI00 | c | 3 | WA | USD | MTC | ERCOT Emissions Adjusted Green-e Eligible Wind REC Current Year Vintage BH |
| MPC | ADJAI03 | c | 3 | MA | USD | MTC | ERCOT Emissions Adjusted Green-e Eligible Wind REC Current Year Vintage BH MAvg |
| MPC | AEMJR00 | c | 3 | WA | USD | MTC | PJM Emissions Adjusted New Jersey REC Class 1 Current Year Vintage |
| MPC | AEMJR03 | c | 3 | MA | USD | MTC | PJM Emissions Adjusted New Jersey REC Class 1 Current Year Vintage MAvg |
| MPC | AEMKF00 | c | 3 | WA | USD | MTC | PJM Emissions Adjusted PJM Tri-Qualified REC Tier 1 Current Year Vintage |
| MPC | AEMKF03 | c | 3 | MA | USD | MTC | PJM Emissions Adjusted PJM Tri-Qualified REC Tier 1 Current Year Vintage MAvg |
| ES | ARFAJ00 | lhc | 3 | WA | USD | MGW | Texas Green-e Eligible Wind REC Current Year Vintage FH Wkly |
| MPC | MRFAJ00 | lhc | 3 | WA | USD | MGW | Texas Green-e Eligible Wind REC Current Year Vintage FH Wkly (Mirror) |
| ES | ARFAK00 | lhc | 3 | WA | USD | MGW | Texas Green-e Eligible Wind REC Current Year Vintage BH Wkly |
| MPC | MRFAK00 | lhc | 3 | WA | USD | MGW | Texas Green-e Eligible Wind REC Current Year Vintage BH Wkly (Mirror) |
| ES | ARFAF00 | lhc | 3 | WA | USD | MGW | Texas non-Solar REC Next Year Vintage Wkly |
| MPC | MRFAF00 | lhc | 3 | WA | USD | MGW | Texas non-Solar REC Next Year Vintage Wkly (Mirror) |
| ES | ARHAD00 | lhc | 3 | WA | USD | MGW | PJM Tri-Qualified REC Tier 1 Current Year Vintage Wkly |
| MPC | MRHAD00 | lhc | 3 | WA | USD | MGW | PJM Tri-Qualified REC Tier 1 Current Year Vintage Wkly (Mirror) |
| RE | RECNJT1 | lhc | 3 | WA | USD | MGW | New Jersey REC Class 1 Current Year Vintage Wkly |
| MPC | MECNJT1 | lhc | 3 | WA | USD | MGW | New Jersey REC Class 1 Current Year Vintage Wkly (Mirror) |
To:
| MDC | Symbol | Bates | Dec | Frq | Curr | UOM | Description |
| MPC | ADJAH00 | c | 3 | DW | USD | MTC | ERCOT Emissions Adjusted Green-e Eligible Wind REC Current Year Vintage FH $/mtCO2e |
| MPC | ADJAH03 | c | 3 | MA | USD | MTC | ERCOT Emissions Adjusted Green-e Eligible Wind REC Current Year Vintage FH $/mtCO2e MAvg |
| MPC | ADJAI00 | c | 3 | DW | USD | MTC | ERCOT Emissions Adjusted Green-e Eligible Wind REC Current Year Vintage BH $/mtCO2e |
| MPC | ADJAI03 | c | 3 | MA | USD | MTC | ERCOT Emissions Adjusted Green-e Eligible Wind REC Current Year Vintage BH $/mtCO2e MAvg |
| MPC | AEMJR00 | c | 3 | DW | USD | MTC | PJM Emissions Adjusted New Jersey REC Class 1 Current Year Vintage $/mtCO2e |
| MPC | AEMJR03 | c | 3 | MA | USD | MTC | PJM Emissions Adjusted New Jersey REC Class 1 Current Year Vintage $/mtCO2e MAvg |
| MPC | AEMKF00 | c | 3 | DW | USD | MTC | PJM Emissions Adjusted PJM Tri-Qualified REC Tier 1 Current Year Vintage $/mtCO2e |
| MPC | AEMKF03 | c | 3 | MA | USD | MTC | PJM Emissions Adjusted PJM Tri-Qualified REC Tier 1 Current Year Vintage $/mtCO2e MAvg |
| ES | ARFAF00 | lhc | 3 | DW | USD | MGW | Texas non-Solar REC Next Year Vintage $/MWh |
| MPC | MRFAF00 | lhc | 3 | DW | USD | MGW | Texas non-Solar REC Next Year Vintage $/MWh (Mirror) |
| ES | ARFAJ00 | lhc | 3 | DW | USD | MGW | Texas Green-e Eligible Wind REC Current Year Vintage FH $/MWh |
| MPC | MRFAJ00 | lhc | 3 | DW | USD | MGW | Texas Green-e Eligible Wind REC Current Year Vintage FH $/MWh (Mirror) |
| ES | ARFAK00 | lhc | 3 | DW | USD | MGW | Texas Green-e Eligible Wind REC Current Year Vintage BH $/MWh |
| MPC | MRFAK00 | lhc | 3 | DW | USD | MGW | Texas Green-e Eligible Wind REC Current Year Vintage BH $/MWh (Mirror) |
| ES | ARHAD00 | lhc | 3 | DW | USD | MGW | PJM Tri-Qualified REC Tier 1 Current Year Vintage $/MWh |
| MPC | MRHAD00 | lhc | 3 | DW | USD | MGW | PJM Tri-Qualified REC Tier 1 Current Year Vintage $/MWh (Mirror) |
| RE | RECNJT1 | lhc | 3 | DW | USD | MGW | New Jersey REC Class 1 Current Year Vintage $/MWh |
| MPC | MECNJT1 | lhc | 3 | DW | USD | MGW | New Jersey REC Class 1 Current Year Vintage $/MWh (Mirror) |
Please follow the link below for further details:
If you have any comments or questions about this announcement, please contact S&P Global Energy Support team or email support.energy@spglobal.com.