Compare natural gas plans
across metro Atlanta.
For homes on the Atlanta Gas Light network. Compare the gas you use,
monthly fees, and the conditions behind each offer.
Atlanta, Marietta, Sandy Springs, Brookhaven and surrounding communities.
Explore metro Atlanta service areas ↗
Offers can expire October 4–5. Verify before enrolling.
Four marketers. All the math.
Your property’s AGL charge applies with every marketer. It varies by month and your home’s DDDC factor. For context, the PSC benchmark adds $580.53/year at DDDC 1.30. Taxes and one-time charges are also excluded.
For metro Atlanta homes connected to AGL. Comparing these four marketers only. Regional offers depend on the property’s delivery group and customer eligibility. Rankings use the upper end of any monthly fee range. “Lowest” means lowest in this selection and scenario; eligibility and your quoted fees may change the order.
A low headline rate is only part of the story.
Lowest verified fixed offers and their published equivalents.
Matching plan and term; rewards and credits shown separately.
Make the assumptions
easy to see.
This guide is for residential homes across metro Atlanta on the Atlanta Gas Light network, including Atlanta and surrounding cities and communities. Your mailing city does not determine your gas network. Confirm AGL service and each plan’s delivery group eligibility for your exact property.
Where do the rates come from?
The published baseline is the Georgia Public Service Commission’s September 2026 marketer pricing chart. AGL delivers gas; it does not provide the competing retail supply rates in this comparison. Provider pages were reviewed October 4, 2026. This page is a saved snapshot, not a live rate feed.
How do you estimate therm usage?
Estimated annual therms =
(home size in sq ft × 0.233 × 1.10 for gas heating)
+ 180 for a gas water heater
+ 25 for a gas stove / oven
+ 45 for a gas fireplace
+ 20 for a gas clothes dryer
Include only the gas uses selected, then round to the nearest whole therm.
Example: A 1,800 sq ft home with gas heating, a gas water heater and a gas stove / oven:
(1,800 × 0.233 × 1.10) + 180 + 25 = 666.34
≈ 666 therms per year
What is included in estimated cost?
Fixed plans use an average month: annual therms ÷ 12 × rate + highest monthly service fee − selected rewards. Eligible credits for contracts of 12+ months are averaged over the first 12 months; receipt timing differs. Six-month credits are excluded. The five-year scenario uses 60 months of constant annual usage: the selected offer applies for its initial contract, followed by the current published price and highest monthly fee for the same plan and term through year five. Prices are held constant at the saved snapshot, not forecast. Constellation new-customer regional plans renew using the standard plan for the same term. One-time credits and GNG rewards apply once in year one; the selected GNG Greener Life option adds its $4.99 monthly fee after the first free year. Each five-year difference is measured against the lowest five-year total in its fixed or variable selection. Variable introductions use their stated duration, followed by a constant published variable snapshot. These calculations exclude AGL delivery, taxes and one-time charges. Variable plans use the separate monthly therm input and have their own lowest-plan baseline; future rates are not forecast. The prominent amount is extra cost versus the lowest eligible plan for the same period; the lowest plan shows $0. Estimated totals remain below it. Calculations use the highest listed monthly service fee; original fee ranges appear in plan details. Bill credits assume full eligibility and receipt within year one when selected. GNG’s additional advertised $10/month credit is listed separately and excluded because complete stacking terms were not verified. Optional autopay, renewal, senior and military discounts are excluded. An averaged first-year credit does not repeat automatically in later contract years.
What happens after a variable-rate introductory offer?
Select the Variable checkbox in the comparison to see introductions and current rates. Introductions are excluded from fixed-rate rankings. Current post-intro rates are snapshots, not future guarantees. A 39¢ introduction is not a 39¢ annual rate.
| Marketer | Intro / therm | After introduction |
|---|---|---|
| Gas South | 39¢ · first month | Variable; current $1.990 |
| GNG | 39.9¢ · first 2 months | Variable Select; current $2.359 |
| SCANA | 39.9¢ · first bill | Variable; current $1.999 |
| Constellation | No intro verified | PSC variable snapshot $1.349 |
Intro fee waivers, eligibility and duration differ.