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Maryland GRECs — $87.00 per credit in 2025

Maryland geothermal heat pump owners earn Geothermal Renewable Energy Credits (GRECs) worth $87 per MWh in 2025. GRECs are issued through PJM-GATS for each MWh of thermal energy produced by a qualifying geothermal system. Emergent Energy handles the full registration process — MD PSC certification, PJM-GATS enrollment, credit aggregation, and market sale — at no upfront cost. A typical 4-ton residential system replacing natural gas generates approximately 430 GRECs per year, translating to roughly $37,000 in annual revenue. Use our GREC revenue calculator to estimate your system's earnings.

Maryland GREC Program Key Facts

• Program established: 2012 (HB 1186), expanded 2021 (HB 1007)
• Eligibility: systems installed on or after January 1, 2023 earn dedicated GRECs; pre-2023 systems earn Tier 1 RECs
• Residential: must meet ENERGY STAR standards; not grid-connected
• Non-residential: commercial, multi-family, institutional — all eligible
• Low-income carve-out: 20% of utility GREC obligation must come from LMI facilities
• Tracking: PJM-GATS
• Credit basis: 1 GREC per MWh of thermal energy saved

Eligibility Requirements

How Emergent Energy Handles Maryland GREC Registration

See the complete registration process explained step by step.

1. Confirm system specs and installation documentation
2. Submit MD PSC application for geothermal facility certification
3. Register with PJM-GATS and obtain MD state certification number
4. Manage monthly GREC issuance and aggregation
5. Execute market sales and remit payment

Have questions? See our GREC FAQ →