Is this site paid by gas marketers?

No. No marketer pays to appear here, to rank higher, or to be linked, and none can. The site runs no ads. adPharos pays the hosting bill and publishes this disclosure.

Where do the numbers come from?

From the Georgia Public Service Commission's monthly Marketers Pricing Index, which publishes fixed, variable, senior and pre-pay charts as PDFs. An automated parser reads those PDFs and writes one JSON file per month, and the parsed values are published as rates.json. Every rate table on this site links to the exact PSC chart the rows came from, so any figure can be checked.

Why is the annual cost higher than rate × usage?

Because a gas bill is more than the gas. The estimate adds the marketer's monthly customer service charge twelve times, using the charge a new customer pays at sign-up where a marketer files a range, plus the Atlanta Gas Light annual base charge of $580.53 that every Georgia customer pays whoever they buy from. The same formula is used for every plan on every chart.

How often is it updated?

Monthly. The PSC posts each month's charts on its own page, and an automated job fetches, parses and republishes them. Every page states the month it is showing, and a banner appears across the site once the newest published month is more than 45 days old, so stale data announces itself.

Why isn't marketer X listed?

Three reasons. If a name is unrecognised the parser refuses the whole month rather than quietly dropping the row, so no marketer disappears silently. Marketers that stopped filing with the PSC are recorded in data/known_exits.json. Plans open only to a marketer's existing customers appear on that marketer's own page, not in the comparison tables.

Methodology and disclosures

Every comparison site says it is neutral. This one is set up so you do not have to take that on faith: the data is a public filing that every page links to, the parsed values are published so any row can be checked against it, the ranking is one formula printed below, and the one conflict of interest is named. If any of that stops being true, the site is broken.

Where the numbers come from

All rates come from the Georgia Public Service Commission's Marketers Pricing Index, where every certificated marketer files its rates each month. The PSC publishes four charts as PDFs. Nothing on this site is collected from marketers, submitted by marketers, or estimated by us. The current data is the August 2026 filing.

Month page: https://psc.ga.gov/utilities/natural-gas/marketers-pricing-index/august-2026/. This month's charts:

Fixed rate plans: https://psc.ga.gov/site/assets/files/9686/august_2026_fixed_pricing-1.pdf
Variable rate plans: https://psc.ga.gov/site/assets/files/9686/august_2026_variable_pricing-1.pdf
Senior citizen rate plans: https://psc.ga.gov/site/assets/files/9686/august_2026_senior_pricing-1.pdf
Pre-pay plans: https://psc.ga.gov/site/assets/files/9686/august_2026_prepay_pricing-1.pdf

What each field on the rate tables means.
Field	Meaning
Marketer	The marketer's name and, where the PSC names one, the specific plan. The regulated provider (SCANA's regulated division, filed as Regulated Provider Group 1 and 2) is left off the comparison tables: it serves customers assigned to it, not shoppers. Its rates have their own page, /regulated-provider, and its rows remain in rates.json as filed.
Rate per therm	The rate the marketer filed with the PSC for this month, in dollars per therm.
Customer service charge	The marketer's own fixed monthly charge, on top of the gas. Where a marketer files a range, the charge a new customer pays at sign-up is shown, with a note under the table saying when the other end applies.
Term	How many months the rate is held, for fixed plans.
Estimated annual cost	What a year costs at the PSC's usage assumption, including the service charge and the Atlanta Gas Light base charge.
Early termination fee	What the marketer charges to leave the plan early, as filed.
Effective date	The date the filed rate took effect.
PSC complaints, 24 mo	How many complaints the PSC logged against the marketer on its Gas Marketer Scorecard over the last 24 published months. A raw count, not per customer, and never part of the ranking.

How to check these numbers

Every number on this site is copied from a PSC chart, and every page links to the PSC month it came from. To check a row, open that month on the PSC site, open the matching chart PDF (fixed, variable, senior or prepay), and compare the rate, service charge, effective date and early termination fee to the row here. The parsed values for the current month are published as rates.json and rates.md, so the comparison can be done by hand or by script. An automated sanity gate refuses to publish a month whose parse does not match the chart's own structure; those months are listed on the history page rather than shown.

How plans are ranked

Plans are ranked by estimated total annual cost, cheapest first, and by nothing else. The formula, in full:

Total annual cost = rate × the PSC's therm assumption + the customer service charge × 12 + the Atlanta Gas Light annual base charge. Ties break by service charge, then by name. No other factor.

Where a marketer files a range of customer service charges rather than one figure, the charge a new customer actually pays at sign-up is used, and shown, with the marketer's own condition for the other end noted under the table: Gas South and Georgia Natural Gas charge the low end unless a credit assessment or payment history says otherwise, and True Natural Gas charges the high end and reduces it by $0.50 for each year of continuous service. Each rule comes from the note the marketer filed on the PSC chart, and both ends of the range are published in rates.json. A range with no such note is costed on its high end, the PSC's own method for its published bill, and shown as a range.

The same formula is applied to every plan on every chart. The PSC publishes a Total Annual Bill of its own on some charts; it is kept in the data as psc_annual_bill and is never ranked on, because the PSC computes it on a different basis on the pre-pay chart and mixing two bases inside one ranked table would order plans by which basis happened to be available. Pre-pay plans billed as a flat monthly amount file no per-therm rate, so they show no estimated annual cost and sort last.

For August 2026 the PSC's assumption is 641 therms a year and the Atlanta Gas Light annual base charge is $580.53. There is no editorial score, no partner weighting, and no way to buy a position. Your own usage is not the PSC's assumption, so treat the ranking as a like-for-like comparison rather than a quote.

PSC complaints

Alongside the pricing charts the Commission publishes a Gas Marketer Scorecard, one page a month, counting the complaints it received about each certificated marketer in three categories: billing, service and deceptive marketing. The tables here show each marketer's total over the trailing 24 published months (August 2024 to July 2026), and each marketer's own page breaks that down by category and by month, linking every month to the PSC page it came from. Where the PSC leaves a cell empty it means zero, and it is read as zero here.

Two things the number is not. It is not per customer: the PSC publishes no customer counts, so a marketer with a larger book collects more complaints for the same standard of service, and no normalisation is possible from public data. And it is not part of the ranking. Plans are ordered by estimated annual cost and by nothing else; the complaint column sits beside that ordering and never moves a row. The scorecard lags the pricing charts by about six weeks, so the newest complaint month is usually older than the newest rate month.

Who built this

Open Natural Gas is built and paid for by adPharos, a marketing agency in Atlanta, Georgia, and is offered as a free resource to the public.

PSC endorsement

The Georgia Public Service Commission does not rank or endorse marketers. It publishes the filings this site reads, and nothing more. This site is not affiliated with, operated by, or approved by the Commission, and no ordering shown here should be read as a Commission judgement.

Frequently asked questions

Is this site paid by gas marketers?: No. No marketer pays to appear here, to rank higher, or to be linked, and none can. The site runs no ads. adPharos pays the hosting bill and publishes this disclosure.
Where do the numbers come from?: From the Georgia Public Service Commission's monthly Marketers Pricing Index, which publishes fixed, variable, senior and pre-pay charts as PDFs. An automated parser reads those PDFs and writes one JSON file per month, and the parsed values are published as rates.json. Every rate table on this site links to the exact PSC chart the rows came from, so any figure can be checked.
Why is the annual cost higher than rate × usage?: Because a gas bill is more than the gas. The estimate adds the marketer's monthly customer service charge twelve times, using the charge a new customer pays at sign-up where a marketer files a range, plus the Atlanta Gas Light annual base charge of $580.53 that every Georgia customer pays whoever they buy from. The same formula is used for every plan on every chart.
How often is it updated?: Monthly. The PSC posts each month's charts on its own page, and an automated job fetches, parses and republishes them. Every page states the month it is showing, and a banner appears across the site once the newest published month is more than 45 days old, so stale data announces itself.
Why isn't marketer X listed?: Three reasons. If a name is unrecognised the parser refuses the whole month rather than quietly dropping the row, so no marketer disappears silently. Marketers that stopped filing with the PSC are recorded in data/known_exits.json. Plans open only to a marketer's existing customers appear on that marketer's own page, not in the comparison tables.