SREC Value Calculator

About the SREC Value Calculator

Solar Renewable Energy Certificates (SRECs) are tradeable certificates that represent the environmental benefits of 1 megawatt-hour (1,000 kWh) of solar electricity generation. In states with SREC markets, your solar system earns one SREC for every MWh it produces, which you can sell to utilities that need them to meet renewable portfolio standard (RPS) requirements.

SREC prices vary dramatically by state. New Jersey SRECs have traded for $150–$250, while Illinois SRECs are $60–$90 and Massachusetts SRECs range from $250–$400. In states without SREC markets, this income stream doesn't exist. The capacity factor (the ratio of actual to maximum possible output) determines how many SRECs your system earns annually.

This calculator estimates your annual SREC income based on system size, local capacity factor, and current SREC prices. Over a 10–15 year SREC contract or market participation period, this income can total $5,000–$30,000+ depending on your state and system size.

Integrating this calculation into regular energy reviews ensures that conservation strategies are grounded in measured data rather than assumptions about building performance and usage patterns.

When This Page Helps

SRECs provide significant additional income on top of electricity savings. In strong SREC markets, they can reduce payback by 2–4 years. This calculator helps you estimate that income stream for financial planning.

How to Use the Inputs

1. Enter your solar system size in kW.
2. Enter the capacity factor for your location (typically 15–22%).
3. Enter the current SREC price per certificate in your state.
4. Review your annual SREC production and income.
5. Check if your state has an SREC market before relying on this income.

Example Calculation

Tips & Best Practices

• SREC prices fluctuate with market supply and demand — use current prices for estimates.
• Some states offer long-term SREC contracts that lock in prices for 10–15 years.
• Register your system with your state's SREC tracking system promptly after installation.
• SRECs are taxable income — plan for the tax impact.
• Capacity factor varies by location: 15–18% in the Northeast, 18–22% in the South and West.
• SREC programs have eligibility windows; some only apply to systems installed by certain dates.

How SRECs Work

Each SREC represents the environmental attributes of 1 MWh of solar generation. Utilities are required by state Renewable Portfolio Standards to obtain a certain number of SRECs annually. If they don't generate enough solar themselves, they buy SRECs from systems like yours. This creates a market where your solar production has value beyond the electricity it generates.

SREC vs Net Metering

SRECs and net metering are separate income streams. Net metering credits you for the electricity itself, while SRECs credit you for the environmental benefit. You earn both simultaneously — SRECs don't reduce your net metering credits or vice versa.

Long-Term SREC Strategies

Long-term contracts provide price certainty but may lock you in below market peaks. Spot market sales capture current prices but carry volatility risk. A common strategy is to contract 50–70% of your SRECs and sell the rest on the spot market.

Frequently Asked Questions

• What states have SREC markets?

  States with active SREC markets include New Jersey, Massachusetts, Maryland, Pennsylvania, Ohio, Illinois, and the District of Columbia. Each state's program has different rules, prices, and eligibility requirements.

• How much is one SREC worth?

  SREC values range from $20 to $400+ depending on the state. New Jersey SRECs trade at $150–$250, Massachusetts at $250–$400, and Illinois at $60–$90. Prices fluctuate based on supply, demand, and policy changes.

• How do I sell my SRECs?

  Register your system with your state's generation information system. Then sell through an SREC aggregator (like SRECTrade or Sol Systems), directly on the spot market, or sign a long-term contract with a buyer. Aggregators handle the paperwork for a small fee.

• Are SRECs taxable?

  Yes, SREC income is generally treated as taxable income by the IRS. The exact tax treatment can vary, so consult a tax professional. Budget for federal and state income tax on your SREC earnings.

• How long can I earn SRECs?

  SREC programs typically have a qualification period of 10–15 years from the date your system is installed and registered. After this period, your system continues producing electricity but no longer generates SRECs.

• What is a capacity factor?

  Capacity factor is the ratio of actual energy output to maximum possible output if the system ran at full capacity 24/7. Solar systems typically have 15–22% capacity factors because they only produce during daylight hours and are affected by weather.