Liberty Utilities (EnergyNorth Natural Gas) Rate Selection Guide
Liberty Utilities (EnergyNorth Natural Gas) is a NHPUC-regulated gas distribution company serving roughly 68,900 customers across southern and central New Hampshire. Gas customers access monthly billing and usage data through the My Account portal; interval data and Green Button are not yet available but are in development via a statewide energy data platform.
Liberty Utilities (EnergyNorth Natural Gas) Rate Schedule Comparison
| Schedule | Type | Rate | Best For |
|---|---|---|---|
| G-41 / G-42 / G-43 (High Winter Use) | commercial | Customer charge + blocked distribution therms + high-winter Cost of Gas + LDAC (set by NHPUC order) | Heating-dominated commercial and industrial loads |
| G-51 through G-54 (Low Winter Use) | commercial | Customer charge + blocked distribution therms + low-winter Cost of Gas + LDAC (set by NHPUC order) | Flatter, process or year-round commercial loads |
| Commercial Cost of Gas / LDAC (filed 2025-2026) | commercial | LDAC commodity component filed at $0.0781 per therm for commercial customers (DG 24-098) | Reference for commodity pass-through budgeting |
Market Overview
Liberty EnergyNorth is the regulated gas distribution monopoly under NHPUC No. 11. Distribution is not open to competition. Commercial and industrial customers may purchase the gas commodity from a competitive supplier (energy choice) while Liberty continues to deliver and bill; default-service (bundled) customers receive the Cost of Gas through Liberty.
Need to pull your actual usage data to compare rates? See the Liberty Utilities (EnergyNorth Natural Gas) Data Access Guide →
Current Rate Schedules
Liberty EnergyNorth C&I gas service is billed under tariff NHPUC No. 11. Commercial/industrial customers are grouped into High Winter Use classes (G-41/G-42/G-43, by low/medium/high annual use) and Low Winter Use classes (G-51 through G-54, by annual use and load factor). Each bill combines a monthly customer charge, blocked distribution (delivery) therm charges, the semiannually-set Cost of Gas (commodity), the Local Distribution Adjustment Charge (LDAC), and a decoupling Normal Weather Adjustment. Specific per-class dollar charges are set by NHPUC order and published in the rate sheets of NHPUC No. 11; the verified commercial Cost-of-Gas / LDAC commodity component filed for 2025-2026 is referenced below. Distribution rates rose under the 2024-2025 rate case with newly approved rates effective September 1, 2025.
Effective: September 1, 2025 · Full Tariff Book →
| Schedule | Type | Applicability | Structure | Rate |
|---|---|---|---|---|
| Rate G-41 — C&I Low Annual Use, High Winter Use | commercial | Commercial/industrial customers with low annual use and high winter (heating-dominated) usage. | Monthly customer charge + blocked distribution therm charges + Cost of Gas (high-winter class) + LDAC + decoupling adjustment. Per-therm charges set by NHPUC order in NHPUC No. 11 rate sheets. | — |
| Rate G-42 — C&I Medium Annual Use, High Winter Use | commercial | Commercial/industrial customers with medium annual use and high winter usage. | Monthly customer charge + blocked distribution therm charges + high-winter Cost of Gas + LDAC + decoupling adjustment. | — |
| Rate G-43 — C&I High Annual Use, High Winter Use | industrial | Larger commercial/industrial customers with high annual use and high winter usage. | Monthly customer charge + blocked distribution therm charges + high-winter Cost of Gas + LDAC + decoupling adjustment. | — |
| Rate G-51 — C&I Low Annual Use, Low Winter Use | commercial | Commercial/industrial customers with low annual use and low winter (flatter, less heating-driven) usage. | Monthly customer charge + blocked distribution therm charges + low-winter Cost of Gas + LDAC + decoupling adjustment. | — |
| Rate G-53 — C&I High Annual Use, Load Factor < 90% | industrial | High-annual-use C&I customers with low winter use and load factor below 90%. | Monthly customer charge + blocked distribution therm charges + low-winter Cost of Gas + LDAC + decoupling adjustment. | — |
| Rate G-54 — C&I High Annual Use, Load Factor > 90% | industrial | High-annual-use, high-load-factor C&I customers (best per-therm economics). | Monthly customer charge + blocked distribution therm charges + low-winter Cost of Gas + LDAC + decoupling adjustment. | — |
Rate Recommendations by Use Case
C&I energy/procurement managers
Pull 13-month therm history from My Account and validate the assigned G-class against actual annual and winter consumption.
Class assignment drives both distribution and Cost-of-Gas charges; the High vs Low Winter Use split materially affects the commodity rate.
- Export usage to CSV and compute annual use and winter share
- Ask Customer Care to review classification
- Track the LDAC and Normal Weather Adjustment line items
Multi-site C&I / aggregators
Evaluate competitive gas supply (energy choice) for larger meters and prepare for the NH statewide ESPI data platform for automated data access.
Commodity shopping can beat default Cost of Gas; the statewide platform will enable Green Button CMD/API access once live.
- Compare supplier offers vs Cost of Gas
- Track NHPUC Docket DE 19-197
- Use public aggregate load data for benchmarking
High-load-factor industrial
Pursue load-factor improvements to qualify for G-54 (load factor >90%) and reduce winter design-day demand.
Higher load factor improves per-therm economics and lowers demand-allocated Cost of Gas.
- Flatten winter peak via controls/storage
- Document peak-day determinants
- Review with Liberty before reclassification
Energy suppliers / ESCOs
Enroll via EDI to serve competitive gas customers and monitor the statewide platform for ESPI-based data exchange.
EDI (ANSI X12) is the supported channel for supplier transactions today; ESPI APIs are planned.
- Submit NH Supplier Application to NHCEPS@libertyutilities.com
- Budget the $500 initiation fee
- Complete EDI pre-testing/UAT
Historical Rate Trends
Liberty EnergyNorth filed a distribution rate case and step-adjustment plan to recover non-growth investments made in 2023-2025. Newly approved distribution rates took effect September 1, 2025, with a residential bill impact of under 1%; commodity (Cost of Gas) and LDAC reset semiannually.
September 1, 2025
Newly approved distribution rates took effect; total residential bill impact under 1%. C&I distribution rates adjusted accordingly.
<+1% (residential)August 20, 2024
Liberty filed DG 24-098 to set the 2025-2026 LDAC at $0.1630/therm residential and $0.0781/therm commercial.
LDAC resetOverall trend: Gradual distribution rate increases via multi-year step adjustments; commodity costs fluctuate seasonally.
Next expected change: Next Cost of Gas reset at the start of the following winter/summer period; further step adjustments through 2026.
Cost Optimization Strategies
Because gas distribution is regulated, C&I cost savings come from correct rate-class assignment, managing the Cost of Gas commodity (including competitive supply), improving load factor, and reducing winter peak intensity.
Verify rate-class assignment
For: All C&I gas customers
Confirm the building is on the correct G-class for its annual use and winter-use intensity; misclassification between High and Low Winter Use groups changes the Cost-of-Gas and distribution charges.
Shop competitive gas supply
For: Commercial & industrial
Larger C&I customers can buy the gas commodity from a competitive supplier (energy choice) while Liberty delivers, potentially beating the default Cost of Gas.
Improve load factor / shave winter peak
For: High-use industrial
Higher load factor (e.g., qualifying for G-54) and reduced winter design-day demand lower demand-allocated Cost of Gas and improve per-therm economics.
Energy efficiency & weatherization
For: All C&I
Reduce therm consumption via efficiency measures and Liberty commercial energy programs, lowering both distribution and commodity charges.
To implement these strategies, you need your 15-minute interval data. Learn how to download Liberty Utilities (EnergyNorth Natural Gas) interval data →
Frequently Asked Questions
Can my business get interval (hourly) gas data from Liberty EnergyNorth?▾
No. NH gas meters use AMR with monthly reads, so only monthly therm usage is available. There is no 15-minute or hourly gas interval data. Interval/AMI data may become available through the NH statewide energy data platform (NHPUC Docket DE 19-197).
Does Liberty offer Green Button or an API for C&I data?▾
Not yet. Green Button Connect My Data (ESPI) and a customer-facing API are in development via the statewide platform Liberty is helping govern. Today, the only options are CSV/Excel export from My Account or a customer-authorized manual export through Customer Care.
Which rate class applies to my commercial building?▾
C&I customers are assigned to a G-class based on annual consumption and winter-use intensity: High Winter Use (G-41/G-42/G-43) for heating-dominated loads and Low Winter Use (G-51 through G-58) for flatter loads. The exact class appears on the first page of your bill; confirm it with Customer Care.
Can a commercial customer buy gas from a competitive supplier?▾
Yes. New Hampshire allows energy choice for the gas commodity. A C&I customer can contract with a competitive supplier while Liberty continues to deliver and bill the regulated distribution charges. Default customers receive the semiannual Cost of Gas.
How do third parties access a customer's gas data?▾
There is no automated third-party portal today. With written customer authorization, a consultant can request bills/usage summaries from Customer Care (1-800-833-4200), typically delivered in 5-10 business days. Energy suppliers use EDI. Standardized API access is planned through the statewide platform.
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