The Georgia PSC Marketers Pricing Index, Explained
Every natural gas marketer certificated in Georgia has to file its prices with the Public Service Commission every month. The Commission publishes them all, as PDFs, on its Marketers Pricing Index.
That filing requirement is the reason this site can exist. It is also the reason no comparison site in Georgia has an excuse for an incomplete table.
What gets published
Four charts a month, one per plan type: fixed, variable, senior and prepay.
Each chart lists every certificated marketer that filed for that month, and for each plan:
- the rate per therm
- the monthly customer service charge
- the contract term
- the early termination fee
- the effective date
- the PSC’s own monthly and annual price per therm
Marketers can file a range for the service charge rather than a single figure, with a note about which end applies to whom. That detail matters more than it sounds, and it is where most of the difficulty in comparing plans honestly lives.
What the PSC does and does not do
It does require the filing, publish it, and apply one shared usage assumption so the numbers are comparable.
It does not set competitive marketers’ prices, rank them, recommend them, or vouch for them. The only rates the Commission approves directly are the regulated provider’s.
This distinction gets blurred constantly in gas marketing, and it is worth being precise about: appearing on a PSC chart means a marketer complied with a filing rule. It is not a seal of approval. The Georgia Public Service Commission does not rank or endorse marketers.
The usage assumption
To produce an annual figure, you need to assume how much gas a household burns. The PSC currently assumes 641 therms a year and applies it to every marketer on the chart.
That shared number is what makes the comparison meaningful. It has also changed: 717 therms on charts from January 2019, 613 from December 2023, 641 from May 2026, with the Atlanta Gas Light base charge moving alongside it. Within one month’s chart every plan is measured identically. Across years they are not, so compare per-therm rates when looking at history and annual costs when choosing between plans in the same month. We wrote about that assumption in more detail on the blog.
What the charts do not tell you
What you will actually pay, because your own usage is not 641 therms. Treat every annual figure, ours included, as a like-for-like comparison rather than a quote.
What the marketer is advertising today. Marketers frequently promote rates below the ones they file, with promo codes and conditions attached. The filed rate is the one on record; the advertised one is what you may be offered on the phone. They are different things and we track them separately.
What happens at the end of your term, which is in your contract, not on the chart.
How we use them
An automated job fetches each month’s charts, parses the PDFs and republishes the values, with every table on this site linking to the exact chart its rows came from. A sanity gate refuses to publish a month whose parse does not match the chart’s own structure, rather than guessing: four months since 2019 were withheld on that basis and are named on the data page instead of quietly missing.
The parsed values for the current month are rates.json and rates.md, and every month since 2019 is in history.csv. The full parsing and ranking rules are on the methodology page.
If a number here ever disagrees with the PSC chart it links to, the chart is right and we want to know: [email protected].
Common questions
- Does the Georgia PSC set natural gas rates?
- No, not for competitive marketers. Marketers set their own prices. The Commission requires them to file those prices monthly and publishes them, and it approves the rates of the regulated provider only. Publishing a rate is not endorsing it, and the PSC does not rank or endorse marketers.
- Does the PSC chart show every marketer?
- Yes. The monthly charts list every certificated marketer that filed for that month and plan type, which is what makes them a complete picture of the market rather than a selection. Ten marketers appeared on the September 2026 fixed chart.
- What is the PSC's apples-to-apples price?
- The Commission applies one assumed household usage, currently 641 therms a year, to every marketer on the chart, so the resulting annual figures are comparable with each other. Without a shared usage assumption, annual costs from different marketers would not be measuring the same thing.
- Where can I see the original PSC charts?
- On the Commission's own Marketers Pricing Index page, as monthly PDFs. Every rate table and every archived month on this site links to the exact chart its rows came from, so any figure here can be checked against the source in a couple of clicks.
More guides
- How to switch marketer: What switching gas marketer in Georgia actually involves: the 19th-of-the-month deadline, what it costs to leave a contract early, and what does not change at your house.
- How to read your bill: Your Georgia gas bill has two halves, one you chose and one you did not. What each charge is, which ones switching can change, and why half the bill is the same for everyone.
- Pool groups and availability: Atlanta Gas Light's system is split into nine geographic pool groups, and marketers restrict some of their best plans to the Atlanta ones. Here is how to tell whether a rate is open to you.