A data-driven look at the US renewable energy facilities leaving REC revenue unclaimed — and the market conditions that make recovery profitable now.
The US REC market is projected to double from ~$13B to $26B by 2030, driven by expanding state RPS mandates and corporate sustainability commitments. Compliance markets account for 76–84% of total dollar volume.
States with aggressive Renewable Portfolio Standards and solar carve-outs create the highest-value compliance REC markets. These are priority markets for stranded asset recovery.
| State | RPS Target | Target Year | SREC Price ($/MWh) | REC Price ($/MWh) | Priority |
|---|---|---|---|---|---|
| Washington DC | 100% clean | 2040 | $383 | $10–25 | Critical |
| Massachusetts | 100% clean | 2050 | $315 | $25–55 | Critical |
| New Jersey | 100% clean | 2050 | $215 | $8–20 | Critical |
| Maryland | 100% clean | 2035 | $55 | $5–15 | High |
| Pennsylvania | 18% by 2026 | 2026 | $40 | $3–10 | High |
| New York | 100% clean | 2040 | — | $15–30 | High |
| California | 100% clean | 2045 | — | $8–20 | High |
| Oregon | 100% clean | 2040 | — | $5–15 | Medium |
| Illinois | 100% clean | 2050 | $30–65 | $3–8 | High |
| Connecticut | 100% clean | 2040 | — | $15–35 | High |
| Ohio | 8.5% | 2026 | $4 | $2–5 | Medium |
Each segment represents a distinct category of renewable facilities with significant unmonetized REC potential. Facility counts are based on EIA, EPA, DOE, and industry data.
Small hydroelectric facilities — many operating for decades — are the most likely to be unregistered in REC tracking systems. Run-of-river and low-head installations in New England, the Pacific Northwest, and Appalachia represent the highest-value recovery targets, particularly in states with high compliance REC prices.
EPA's Landfill Methane Outreach Program (LMOP) identifies 542 operational LFG-to-energy projects at 488 landfills. An additional 444 candidate landfills have sufficient methane for energy projects. Many existing projects generate electricity without capturing REC value — a straightforward registration opportunity.
The US has approximately 92,000 distributed wind installations across all 50 states and ~7,500 utility-scale turbines over 20 years old. Legacy turbines with expired PPAs often continue generating power without any REC monetization. Single-turbine farm installations and small wind projects are especially underserved by existing brokers.
Community solar has reached 10 GW cumulative capacity with projects in 43 states. While many larger community solar projects sell SRECs, smaller commercial rooftop systems and early-vintage installations often don't — especially outside the northeast SREC markets. In DC, MA, and NJ, unregistered solar generation can be worth $200–400/MWh in SRECs alone.
Agricultural anaerobic digesters at dairy and swine operations, plus food waste processing facilities, generate biogas that qualifies for RECs in most states. With only ~2,500 active sites out of 17,000+ candidates identified by USDA and EPA, this segment has enormous untapped potential — both for REC registration of existing generators and new project development.
Wood-fired and agricultural waste biomass plants, along with industrial combined heat and power systems using renewable fuels, are often overlooked for REC monetization. These facilities typically have high capacity factors and steady generation, making them reliable REC producers once registered — ideal for compliance market contracts.
RECs must be registered in an approved tracking system to be sold. Each registry covers specific states — knowing which registry to use is critical for asset onboarding.
| Registry | Coverage | Key States | Enrollment Fees |
|---|---|---|---|
| M-RETS | Midwest & Central US | MN, WI, IA, IL, ND, SD, MT, MB | $75–$250/yr |
| WREGIS | Western US & Canada | CA, OR, WA, CO, AZ, NV, NM, UT | $100–$500/yr |
| PJM-GATS | Mid-Atlantic | PA, NJ, MD, DC, VA, OH, DE, WV | $100–$300/yr |
| NEPOOL GIS | New England | MA, CT, RI, NH, VT, ME | $100–$250/yr |
| ERCOT | Texas | TX | $100–$200/yr |
| NAR (APX) | National (voluntary) | Any state (Green-e eligible) | $150–$500/yr |
Existing REC brokers and aggregators focus on utility-scale projects. Voltbridge targets the underserved long tail of small and mid-size facilities.
| Player | Focus | Minimum Size | Gap |
|---|---|---|---|
| 3Degrees | Corporate sustainability, utility-scale RECs | Large portfolios | No small asset outreach |
| Shell Energy | Trading, large buyer/seller matching | Utility-scale | No aggregation of small gen |
| ENGIE Impact | Corporate procurement, advisory | Large buyers | Demand-side focused |
| EDF Trading | Wholesale REC trading | Bulk volumes | No discovery/registration |
| Xpansiv / APX | Registry & marketplace infrastructure | N/A (platform) | No outreach to unregistered |
| Voltbridge | Stranded asset discovery & REC recovery | Any size | Fills the gap |
The top 5 REC market players hold ~30% market share and are focused on large transactions. No major player systematically identifies unregistered small generators and brings them into the market. This is the Voltbridge opportunity.
Voltbridge is building the definitive platform for identifying, registering, and monetizing overlooked renewable energy assets across the US.
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