Standard Choice Offer (SCO): Understanding Your Default Gas Rate

Learn How Ohio’s Default Natural Gas Rate Works and Whether It’s the Right Choice for Your Home

If you live in Ohio and use natural gas, you might have noticed the term “Standard Choice Offer” or “SCO” on your monthly bill and wondered exactly what you are paying for. For many residents, especially those served by Columbia Gas of Ohio or Enbridge (formerly Dominion East Ohio), the SCO is the default setting for their natural gas supply. It isn’t a penalty or a hidden fee. It is simply a regulated, market-based rate assigned to you because you haven’t actively selected an independent energy supplier or joined a local aggregation initiative. Understanding how this rate fluctuates, how to read your usage metrics correctly, and how to utilize tools like the state’s comparison chart can help you decide whether to stick with the default or shop around for a plan that offers more stability. We’ll walk you through when it makes sense to stay on the SCO and when exploring a fixed-rate retail plan might be a better financial move for your household.

What Is the Standard Choice Offer (SCO)?

The Standard Choice Offer (SCO) is the default natural gas rate provided to residential customers who are eligible for “Choice” programs but have not selected a specific retail supplier. It ensures that everyone has access to a reliable supply of natural gas at a fair, regulated price. Unlike a fixed-rate plan where you pay the same amount per unit of gas for a year or more, the SCO is a variable rate that changes monthly based on national energy trends.

It is crucial to know that your local distribution company — such as Columbia Gas of Ohio or Enbridge — still physically delivers the natural gas to your home, maintains the pipelines, reads your meter, and handles all emergency calls like gas leaks regardless of your SCO status. The SCO strictly dictates the rate you pay for the supply of the gas itself, not the delivery infrastructure. This rate is heavily overseen by the Public Utilities Commission of Ohio (PUCO). Its primary goal is to pass the true commodity cost of gas through to you, preventing unauthorized supplier markups on the raw fuel. If you are a new homeowner setting up utilities in a participating service area, you are typically placed on this rate automatically after a brief introductory period.

Who Is Eligible for the SCO?

The SCO applies primarily to customers of major investor-owned utilities in Ohio who participate in the Energy Choice program. You are likely on the SCO rate if you receive gas from Columbia Gas of Ohio or Enbridge Gas Ohio and have not signed a contract with an independent competitive retail natural gas supplier. This default status generally applies to residential customers and many small business customers who fall under the utility’s standard usage limits.

How the PUCO Sets the SCO Rate (NYMEX + Retail Price Adjustment)

One of the biggest advantages of the Standard Choice Offer is its structural transparency. While the price changes monthly, the formula used to set that price is public and thoroughly regulated. Understanding this formula helps you see why your bill might spike in the winter or drop considerably during the summer. It provides a clear, unvarnished window into the actual state of the national energy market.

The SCO rate is determined by adding two main numbers together. First is the NYMEX Month-End Settlement Price. This is the wholesale cost of natural gas on the national market (the New York Mercantile Exchange) and reflects the raw cost of the fuel. The second component is the Retail Price Adjustment (RPA). This adjustment is determined by an annual competitive auction overseen by the PUCO, typically held each January. During this auction, certified retail natural gas suppliers bid to serve SCO customers. The winning bids establish the adjustment rate, which covers the supplier’s administrative costs and risks for the year.

Importantly, your local utility company does not profit from the SCO supply rate. The SCO is a direct pass-through cost, meaning you pay exactly what it costs the supplier to secure the gas on the wholesale market plus that competitively bid adjustment. This structure protects you from arbitrary price gouging on the commodity itself.

The SCO Formula Simplified

To figure out what you are paying, you can look at this simple equation:

NYMEX Market Price + Retail Price Adjustment = Your Monthly SCO Rate

Because the NYMEX price fluctuates based on global supply and weather (demand naturally surges in winter), your SCO rate will rise and fall in sync with the market. This is the definition of a variable rate, and it stands in stark contrast to fixed-rate plans where the supplier absorbs the risk of market volatility on your behalf.

Understanding Your Gas Bill: Mcf vs. Ccf

When you evaluate the natural gas market price and compare it to your monthly statement, the units of measurement can sometimes feel like a foreign language. Understanding the difference between an Mcf and a Ccf is essential for calculating your true energy costs and setting an accurate budget.

The NYMEX natural gas market price — the wholesale cost used in the SCO formula — is measured and reported in Mcf, which stands for 1,000 cubic feet of natural gas. However, when you look at your Ohio utility bill, your local distribution company likely calculates your usage and applies the SCO rate in Ccf, which stands for 100 cubic feet. To read your standard billing statement accurately, you just need to remember one simple conversion: one Mcf equals 10 Ccf.

If you want to convert the wholesale Mcf market rate to see how it impacts your daily usage, simply divide the Mcf price by 10 to find your Ccf rate. For context, an average Ohio home might use around 100 Ccf of natural gas during a cold winter month. If the wholesale market is pricing gas at $3.50 per Mcf, your baseline commodity cost for that month translates to roughly $0.35 per Ccf. When you add the Retail Price Adjustment to that base cost, you get the final SCO rate applied to your monthly consumption. Keeping this basic math in your back pocket ensures you are comparing apples to apples when shopping for a new energy plan.

Standard Choice Offer vs. Retail Choice vs. Government Aggregation

This is the most common question homeowners face when setting up their utilities: Should you stay on the Standard Choice Offer, switch to a Retail Choice supplier, or join a government aggregation program? There is no single “right” answer, as it depends entirely on your budget, risk tolerance, and personal sustainability goals. You can explore more about the differences between fixed and variable rates to help inform your decision.

When to Stick With SCO

Staying with the Standard Choice Offer is often a sound strategy if you want to pay the true market price for gas. Variable market rates can sometimes end up lower than fixed-rate offers, especially when gas prices are falling or during shoulder seasons like spring and autumn.

The pros of the SCO include having no long-term contracts and absolutely no cancellation fees. However, the cons are significant for budget-conscious households: you face unpredictable bills in the winter when you need heat the most. For example, if you’re moving into a home in the spring and don’t want to commit to a long contract right away, staying on the SCO for a few months can give you time to watch prices and compare offers without feeling rushed.

When to Switch to Retail Choice

“Retail Choice” allows you to proactively shop for a supplier through the Energy Choice Ohio website. This is similar to shopping for a mortgage rate — you are looking for terms that fit your life. You can browse offers from dozens of certified providers to find a plan that aligns with your financial needs.

To make this process seamless, the PUCO provides the Apples to Apples comparison chart. You should always use this official state tool when evaluating Retail Choice options against the default SCO rate. The chart allows you to filter plans by rate type, contract length, and supplier, ensuring you find a certified deal without any hidden surprises.

The primary benefit here is stability. You can lock in a fixed rate for 12 to 36 months, effectively shielding yourself from sudden market spikes. If you’re on a tight monthly budget and a massive winter price hike would be stressful, a fixed plan makes your bills far more predictable. Additionally, Retail Choice is usually the most practical way to choose an environmentally mindful option for your gas supply. Many suppliers offer carbon-neutral plans or carbon offset add-ons, which aren’t available through the standard SCO mix. If you’re focused on lowering your carbon footprint, our sustainable living tips can help you pair the right gas plan with everyday energy-saving habits.

Exploring Government Aggregation Programs

In Ohio, you have a distinct third alternative to the SCO and individual Retail Choice: a government aggregation program. A government aggregation program is a local initiative where communities negotiate a bulk natural gas rate on behalf of their residents. By grouping thousands of households together, local leaders can often secure highly competitive fixed rates or specialized terms from a retail supplier.

If your community passes an aggregation measure on a local ballot, you will typically be enrolled automatically unless you take action to “opt out.” Aggregation offers an excellent middle ground, providing the potential for budget stability without requiring you to comb through individual plans on your own. Your local distribution company still handles all the delivery, but your supply rate is locked in based on the community’s negotiated contract.

Comparison at a Glance

How to Check Current SCO Rates for Columbia Gas and Enbridge

If you’re a Columbia Gas of Ohio or Enbridge (Dominion Energy Ohio) customer, finding the current Standard Choice Offer rate is a straightforward process. The state publishes SCO information for each eligible utility, and your local distribution company also maintains a record of current and historical gas rates to help you gauge seasonal trends.

To see today’s exact SCO rate, check the natural gas section of the Public Utilities Commission of Ohio (PUCO) website or look under “Rates” or “Gas Cost” on your utility provider’s site. You can also view your currently assigned SCO supplier and rate directly on your monthly paper or digital billing statement. Checking these rates frequently gives you the baseline data you need before jumping into the Apples to Apples comparison chart to shop for retail alternatives.

Making a Smart Decision for Your Energy Budget

Deciding between the Standard Choice Offer, a retail supplier, and a government aggregation program ultimately comes down to how much you value bill predictability versus overall market flexibility. If you prefer a hands-off approach and don’t mind your bill fluctuating with the seasons, the SCO is a highly regulated, safe option that ensures you never pay an arbitrary supplier markup on the gas commodity itself. It moves with the market, letting you capitalize on low prices during the warmer months.

However, if you are managing a strict household budget, want to avoid winter price shock, or are eager to support green energy initiatives, taking the time to shop for a fixed-rate retail plan is likely the better move for your home. You can also reduce your natural gas usage proactively with simple habit changes; learn more in our guide to saving on your gas bill. No matter which path you choose, staying informed about your energy rates ensures you stay in complete control of your utility costs. For more information on managing your home’s energy setup efficiently, visit our natural gas hub.

Frequently Asked Questions About the Standard Choice Offer

About the Author

David Cosseboom

David has been an integral part of some of the biggest utility sites on the internet, including InMyArea.com, HighSpeedInternet.com, BroadbandNow.com, and U.S. News. He brings over 15 years of experience writing about, compiling and analyzing utility data.