--- title: "Geothermal REC Revenue Calculator — MD, VA & NH Estimates" description: "Estimate annual GREC revenue by state, system size, and fuel replaced. Uses 2025 pricing for Maryland ($87/MWh), Virginia, and New Hampshire." lang: en json-ld: | [ { "@context": "https://schema.org", "@type": [ "Organization", "LocalBusiness" ], "@id": "https://geothermalrec.com/#organization", "name": "Emergent Energy Solutions", "url": "https://geothermalrec.com", "logo": "https://geothermalrec.com/logo.png", "description": "National geothermal REC aggregator and brokerage. Registration, PJM-GATS tracking, and market sale of Geothermal Renewable Energy Credits for residential and commercial systems.", "address": { "@type": "PostalAddress", "streetAddress": "831 Lincoln Ave, Suite D-10", "addressLocality": "West Chester", "addressRegion": "PA", "postalCode": "19380", "addressCountry": "US" }, "telephone": "+12156457141", "email": "sales@emergentenergy.us", "areaServed": [ "Maryland", "Virginia", "New Hampshire", "Pennsylvania" ], "sameAs": [ "https://emergentenergy.us" ] }, { "@context": "https://schema.org", "@type": "Organization", "name": "Geothermal REC", "url": "https://geothermalrec.com", "parentOrganization": { "@type": "Organization", "name": "Emergent Energy Solutions", "url": "https://emergentenergy.us" } }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://geothermalrec.com/" }, { "@type": "ListItem", "position": 2, "name": "GREC Calculator" } ] }, { "@context": "https://schema.org", "@type": "WebApplication", "name": "Geothermal REC Revenue Calculator", "url": "https://geothermalrec.com/calculator", "applicationCategory": "FinanceApplication", "description": "Calculates annual GREC revenue for geothermal heat pump owners based on system capacity, state, and fuel type replaced.", "offers": { "@type": "Offer", "price": "0", "priceCurrency": "USD" }, "provider": { "@id": "https://geothermalrec.com/#organization" } }, { "@context": "https://schema.org", "@type": "HowTo", "name": "How to Calculate Your Annual GREC Revenue", "description": "Estimate the number of Geothermal Renewable Energy Credits your heat pump generates per year and their market value in Maryland, Virginia, or New Hampshire.", "step": [ { "@type": "HowToStep", "position": 1, "name": "Select your state", "text": "Choose Maryland, Virginia, or New Hampshire. Each state has a different GREC market price: Maryland $87/MWh, Virginia ACP ceiling $45/MWh, New Hampshire $27/MWh average." }, { "@type": "HowToStep", "position": 2, "name": "Enter your system size", "text": "Select your geothermal heat pump's capacity in tons. Residential systems typically range from 2 to 6 tons; commercial systems may exceed 10 tons." }, { "@type": "HowToStep", "position": 3, "name": "Select the fuel type your system replaced", "text": "Choose natural gas, heating oil, propane, or electric resistance. The fuel displacement multiplier adjusts your GREC count based on the carbon intensity of the fuel replaced." }, { "@type": "HowToStep", "position": 4, "name": "Review your estimated annual GRECs and revenue", "text": "The calculator applies the formula: system tons × 12,000 BTU/hr × 8,760 hr/yr × COP (3.5) ÷ 3,412,000 BTU/MWh × fuel multiplier = annual GRECs. Annual revenue = GRECs × current state market price." }, { "@type": "HowToStep", "position": 5, "name": "Get a free personalized assessment", "text": "Submit your system details to Emergent Energy for an accurate, no-obligation revenue estimate and to begin the registration process." } ] } ] --- [sales@emergentenergy.us](mailto:sales@emergentenergy.us) [215-645-7141](tel:2156457141) West Chester, PA [![Emergent Energy Solutions](https://www.pasrecs.com/assets/emergent-logo-dark-BEceeyq5.png)](/) [How It Works](/how-it-works)[States](/states)[Maryland](/maryland)[Virginia](/virginia)[For Installers](/for-installers)[Blog](/blog)[FAQ](/faq)[Get Evaluation](/evaluate) 1. [Home](/) 2. / GREC Calculator # Geothermal REC Revenue Calculator Estimate your annual GREC revenue based on your system's state, capacity (tons), and fuel type replaced. Calculations use current market pricing for Maryland ($87/MWh), Virginia (ACP ceiling $45/MWh), and New Hampshire ($27/MWh average). Results are estimates; actual credits may vary based on system certification and market conditions. ### Estimate your annual GREC revenue StateMaryland System size: 4 tons Fuel type replacedNatural gas 431 Estimated GRECs/year $37,525 Estimated annual revenue $562,879 Estimated 15-year revenue [Get My Free GREC Assessment](/evaluate) ## How the Calculator Works The GREC revenue formula is: **system tons × 12,000 BTU/hr × 8,760 hours × COP (3.5) ÷ 3,412,000 BTU/MWh × fuel displacement multiplier = annual GRECs**. Your system's coefficient of performance (COP) determines how efficiently it converts electricity into thermal energy. A higher COP means more thermal output per unit of electricity — and more GRECs. The fuel displacement multiplier adjusts for the carbon intensity of the heating fuel your system replaced: oil (1.4×), propane (1.2×), natural gas (1.0×), and electric resistance (0.8×). Annual revenue = GRECs × current state market price. Lifetime revenue assumes a 15-year maximum credit generation period with stable pricing. ## Common GREC Earnings Questions ### How much do GRECs pay per year in Maryland? A geothermal system in Maryland generates approximately 430 GRECs per year at a current market rate of $87 per GREC, totaling approximately $37,410 per year. Actual earnings depend on system size, efficiency, and market conditions at time of sale. ### How many GRECs does a 3-ton geothermal system generate? A standard 3-ton residential geothermal heat pump generates approximately 430 GRECs per year in Maryland. Larger systems generate proportionally more credits based on measured thermal output. ### How long can I earn GRECs from my system? Most state GREC programs allow credit generation for up to 15 years from the date of system registration. Credits are tracked and verified annually through PJM-GATS or NEPOOL registries. ### What is the difference between a GREC and an SREC? A GREC (Geothermal Renewable Energy Credit) is generated by geothermal heating and cooling systems and measured in MWh of thermal output. An SREC (Solar Renewable Energy Credit) is generated by solar photovoltaic systems and measured in MWh of electricity. Both are tradeable certificates, but they serve different renewable portfolio standards and have separate markets. ## Ready to Register? Get an accurate, personalized GREC revenue estimate from our team — free, no obligation. [Get My Free Assessment](/evaluate) ![Emergent Energy Solutions](https://www.pasrecs.com/assets/emergent-logo-dark-BEceeyq5.png) National geothermal REC aggregator and brokerage service. Registration, tracking, and market sale — at no upfront cost. [sales@emergentenergy.us](mailto:sales@emergentenergy.us) [215-645-7141](tel:2156457141) 831 Lincoln Ave, Suite D-10, West Chester, PA 19380 ## Quick Links - [How It Works](/how-it-works) - [States](/states) - [Maryland](/maryland) - [Virginia](/virginia) - [Pennsylvania](/pennsylvania) - [New Hampshire](/new-hampshire) - [Emerging States](/emerging-states) - [For Installers](/for-installers) - [Blog](/blog) - [FAQ](/faq) - [About](/about) - [GREC Glossary](/glossary) - [GREC Calculator](/calculator) - [Get Evaluated](/evaluate) ## Related Sites - [Emergent Energy](https://emergentenergy.us) - [pasrecs.com](https://www.pasrecs.com) - [emergentmetering.com](https://emergentmetering.com) - [packgine.ai](https://packgine.ai) ## Legal - [Privacy Policy](/privacy-policy) - [Terms of Service](/terms) Part of the Emergent Energy family [Emergent Energy Solutions — full-spectrum energy & credit services](https://emergentenergy.us)[monetize PA efficiency as Tier II AECs](https://pasrecs.com) © 2026 Emergent Energy Solutions. All rights reserved. We use cookies to improve your experience. By continuing to browse, you agree to our [Privacy Policy](/privacy-policy). DeclineAccept