Vermont Gas Systems Rate Selection Guide
Vermont Gas Systems (VGS) is the sole natural gas distribution utility in Vermont, serving roughly 55,000 residential and commercial customers in the state's northwest counties. Regulated by the Vermont Public Utility Commission, VGS offers a MyMeter customer portal for billing and usage viewing but no Green Button, EDI, or public API access.
Vermont Gas Systems Rate Schedule Comparison
| Schedule | Type | Rate | Best For |
|---|---|---|---|
| Rate G1 | Commercial | $0.6797/CCF distribution + $0.6135/CCF gas + $1.6966/day | Smaller commercial accounts (<6,000 Ccf/yr) that are heating-dominated (high winter load) |
| Rate G2 | Commercial | $0.5656/CCF distribution + $0.4530/CCF gas + $1.6966/day | Smaller commercial accounts (<6,000 Ccf/yr) with flatter year-round use (lower winter load factor) |
| Rate G3 | Industrial | $0.5213/CCF distribution + $0.5937/CCF gas + $5.4132/day | Large C&I (>=6,000 Ccf/yr) that are heating-dominated |
| Rate G4 | Industrial | $0.4383/CCF distribution + $0.4520/CCF gas + $5.4132/day | Large C&I (>=6,000 Ccf/yr) with high year-round use and flatter load (lowest per-CCF distribution) |
Market Overview
Vermont's natural gas market is fully regulated. VGS is the only authorized natural gas utility in the state, and there is no competitive retail gas supplier choice. Rates are set under an Alternative Regulation Plan (ARP) approved by the Vermont Public Utility Commission, with an annual base rate filing and quarterly Purchased Gas Adjustment (PGA) updates. Customers do not shop for a separate gas supplier; VGS provides both delivery and the gas commodity.
Need to pull your actual usage data to compare rates? See the Vermont Gas Systems Data Access Guide →
Current Rate Schedules
VGS commercial rates are set by customer class based on annual volume and winter load factor. All rates are stated per CCF (hundred cubic feet) plus a daily access charge. The figures below are the verified current commercial rates effective for bills rendered on and after May 3, 2026, from the VGS Rates & Billing page. The Blended RNG Adder ($1.7817/CCF) and Locally Sourced RNG Adder ($1.9641/CCF) apply only to voluntary RNG program participants.
Effective: May 3, 2026 · Full Tariff Book →
| Schedule | Type | Applicability | Structure | Rate |
|---|---|---|---|---|
| Rate G1 - General Service, Low Usage, Low Load Factor | commercial | Non-residential customers with annual requirement under 6,000 Ccf and winter (Nov-Mar) use at or above 70% of annual. | Daily Access Charge $1.6966/day; Natural Gas Charge $0.6135/CCF; Distribution Charge $0.6797/CCF; Energy Efficiency $0.0607/CCF; Assistance Program Fee $0.63/bill. Effective May 3, 2026. | — |
| Rate G2 - General Service, Low Usage, High Load Factor | commercial | Non-residential customers with annual requirement under 6,000 Ccf and winter use below 70% of annual. | Daily Access Charge $1.6966/day; Natural Gas Charge $0.4530/CCF; Distribution Charge $0.5656/CCF; Energy Efficiency $0.0471/CCF; Assistance Program Fee $0.63/bill. Effective May 3, 2026. | — |
| Rate G3 - General Service, High Usage, Low Load Factor | industrial | Non-residential customers with annual requirement at least 6,000 Ccf and winter use at or above 70% of annual. | Daily Access Charge $5.4132/day; Natural Gas Charge $0.5937/CCF; Distribution Charge $0.5213/CCF; Energy Efficiency $0.0473/CCF; Assistance Program Fee $4.15/bill. Effective May 3, 2026. | — |
| Rate G4 - General Service, High Usage, High Load Factor | industrial | Non-residential customers with annual requirement at least 6,000 Ccf and winter use below 70% of annual. | Daily Access Charge $5.4132/day; Natural Gas Charge $0.4520/CCF; Distribution Charge $0.4383/CCF; Energy Efficiency $0.0365/CCF; Assistance Program Fee $5.80/bill. Effective May 3, 2026. | — |
Rate Recommendations by Use Case
Large industrial / high-volume manufacturer
Facilities using 6,000+ Ccf/yr should confirm placement on Rate G3 or G4 and target a flatter annual load to qualify for G4's lower per-CCF distribution charge.
G4 carries the lowest verified distribution charge ($0.4383/CCF) and commodity charge ($0.4520/CCF); the daily access charge ($5.4132) is fixed regardless, so higher steady volume dilutes it.
- Track winter (Nov-Mar) share of annual use; staying below 70% qualifies for G4
- Combine with VGS commercial efficiency rebates to reduce volumetric cost
- Monitor quarterly PGA changes that flow through the Natural Gas Charge
Mid-size commercial (office, retail, multi-tenant)
Commercial accounts under 6,000 Ccf/yr fall on G1 or G2; flatter year-round use lands you on lower-cost G2.
G2's distribution ($0.5656/CCF) and commodity ($0.4530/CCF) charges are meaningfully lower than G1 ($0.6797 / $0.6135), and both share the same $1.6966/day access charge.
- Reduce winter peaking to shift from G1 to G2
- Use MyMeter usage charts to identify seasonal spikes
- Request a VGS commercial energy assessment
Energy consultant / sustainability manager needing data
Because VGS has no Green Button, EDI, or API, plan for manual, customer-authorized data collection on a recurring cadence.
VGS records monthly totals only and fulfills authorized requests manually in 5-10 business days; there is no automated feed.
- Collect a signed LOA covering 24 months and an expiration date
- Have the customer export bills/usage from MyMeter to avoid request delays
- Build reporting around monthly therms; interval data is unavailable
Historical Rate Trends
VGS rates are reset through an annual base rate filing under the Alternative Regulation Plan, with quarterly Purchased Gas Adjustments (PGA) reflecting commodity cost changes. The most recent annual base rate filing was approved by order dated August 26, 2025, and a PGA-related rate change notice was posted in May 2026.
May 3, 2026
Current commercial and residential rates effective for bills rendered on/after May 3, 2026, reflecting the latest PGA and approved base rates.
n/aAugust 26, 2025
Vermont PUC order approving VGS FY2026 annual base rate compliance filing.
n/aOverall trend: Rates adjust annually for base distribution and quarterly for the gas commodity (PGA). Recent filings reflect both cost-of-service and the utility's Climate Action and Innovation Budget under the ARP.
Next expected change: Next annual base rate filing expected mid-2026 (FY2027); quarterly PGA updates ongoing. Current ARP term runs through September 30, 2026.
Cost Optimization Strategies
Because VGS distribution rates fall as annual volume rises and load factor flattens, C&I customers can reduce per-CCF costs by managing their rate-class assignment and improving winter load factor, alongside efficiency investments.
Optimize rate-class assignment
For: Commercial and industrial accounts
Confirm whether your account is on the lowest-cost applicable class. Accounts near the 6,000 Ccf/yr threshold or near the 70% winter-load boundary may benefit from review, since G3/G4 carry lower per-CCF distribution charges than G1/G2.
Improve winter load factor
For: Heating-dominated C&I accounts
Reducing winter peaking relative to annual use (via efficiency, scheduling, or process changes) can move an account to a higher-load-factor class with lower commodity and distribution rates.
Commercial efficiency & weatherization
For: All C&I accounts
Use VGS commercial energy services, weatherization, and equipment rebates to cut therms consumed, lowering volumetric charges.
To implement these strategies, you need your 15-minute interval data. Learn how to download Vermont Gas Systems interval data →
Frequently Asked Questions
Can a C&I customer get interval gas data from VGS?▾
No. VGS uses traditional monthly-read meters with no AMI, so only monthly total consumption is available. There is no 15-minute, 30-minute, or hourly gas interval data.
Does VGS support Green Button, EDI, or an API for third-party data access?▾
No. VGS has not implemented Green Button (DMD/CMD), EDI, or any public API. Third-party access requires a signed customer authorization and is fulfilled manually in 5-10 business days, typically as PDF.
How are commercial rate classes assigned at VGS?▾
By annual volume and winter load factor. Accounts under 6,000 Ccf/yr fall on G1 (high winter load) or G2 (lower winter load); accounts at or above 6,000 Ccf/yr fall on G3 or G4. Higher load factor and volume earn lower per-CCF charges.
What is the lowest-cost commercial rate per CCF?▾
Rate G4 carries the lowest verified distribution charge at $0.4383/CCF and commodity charge at $0.4520/CCF (effective May 3, 2026), for high-volume accounts with a low winter load factor.
Can my business shop for a competitive gas supplier in Vermont?▾
No. Vermont's gas market is fully regulated and VGS is the sole authorized natural gas utility, providing both delivery and the gas commodity. There is no retail supplier choice.
Where can I find official VGS tariffs and rate filings?▾
Current rates are at https://vgsvt.com/service/rates/, the tariff document list at https://vgsvt.com/service/rates/tariffs/, and full regulatory filings via the Vermont PUC at https://puc.vermont.gov/natural-gas.
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