Liberty Utilities (Granite State Electric) Rate Selection Guide
Liberty Utilities (Granite State Electric) is an investor-owned electric distribution utility serving roughly 47,000 customers across New Hampshire, regulated by the NHPUC. It provides data access through the My Account portal, a paid Interval Data Request process, EDI for competitive suppliers, and public bulk load data, but has not implemented Green Button or a public API.
Liberty Utilities (Granite State Electric) Rate Schedule Comparison
| Schedule | Type | Rate | Best For |
|---|---|---|---|
| G-1 | Large C&I | $491.56/mo + $10.41/kW + ~$0.046/kWh delivery (+ supply) | Large commercial/industrial demand-metered facilities |
| G-2 | Largest / Long-Hour C&I | $741.65/mo + $10.09/kW peak + $25.71/kW transmission demand | High-load-factor large industrial customers |
| G-3 | Small Demand Commercial | $81.91/mo + $10.44/kW + $0.04414/kWh delivery (+ supply) | Mid-size commercial loads with measurable demand |
| G-1 CPT | Critical Peak TOU | $741.65/mo + $10.09/kW peak + $2.23/kW critical peak | Large C&I that can curtail during critical-peak events |
| V / T | Small Commercial | $18.80/mo + ~$0.223/kWh all-in | Small general-service businesses without demand metering |
Market Overview
New Hampshire allows retail electricity competition. Liberty (Granite State Electric) provides NHPUC-regulated delivery; customers can buy energy supply from a competitive supplier (CEPS) or take Liberty Default Energy Service. For G-1/G-2 customers the energy-service rate is set in six-month blocks but changes monthly.
Need to pull your actual usage data to compare rates? See the Liberty Utilities (Granite State Electric) Data Access Guide →
Community Choice Aggregation (CCA) Options
Large C&I customers can contract directly with a competitive electricity supplier for the energy-supply portion of their bill while Liberty continues delivery.
New Hampshire municipalities may form community power aggregations to procure default supply on behalf of residents and businesses under RSA 53-E.
Current Rate Schedules
Liberty delivery (poles-and-wires) rates under NHPUC tariff No. 23 took effect August 1, 2025 (Order No. 28,169, Docket DE 25-030). C&I delivery rates combine a fixed customer charge, demand charges ($/kW) for demand-metered schedules, and per-kWh distribution/transmission charges. The energy-supply portion (Default Energy Service ~$0.12420/kWh for non-TOU classes, or a competitive supplier) is separate. Verified figures below are delivery-side unless noted.
Effective: August 1, 2025 · Full Tariff Book →
| Schedule | Type | Applicability | Structure | Rate |
|---|---|---|---|---|
| G-1 General Service (Large C&I) | commercial | Large commercial and industrial demand-metered customers. | Customer charge $491.56/mo; Distribution Demand $10.41/kW; On-Peak delivery energy $0.04558/kWh, Off-Peak $0.04087/kWh (plus Default Energy Service) | — |
| G-2 General Service (Long Hour / Largest C&I) | industrial | Largest long-hour-use commercial/industrial customers. | Customer charge $741.65/mo; Distribution Demand - Peak $10.09/kW; Critical Peak $2.23/kW; Transmission Demand $25.71/kW; delivery energy ~ -$0.00137/kWh before supply | — |
| G-3 General Service (Small Demand) | commercial | Smaller demand-metered commercial customers. | Customer charge $81.91/mo; Distribution Demand $10.44/kW; delivery energy $0.04414/kWh (plus Default Energy Service $0.12420) | — |
| G-1 CPT (Critical Peak TOU) | industrial | G-1 customers electing critical-peak time-of-use pricing. | Customer charge $741.65/mo; Distribution Demand - Peak $10.09/kW; Critical Peak $2.23/kW; Transmission Demand $25.71/kW | — |
| V General Service (Small Commercial) | commercial | Small general-service commercial accounts. | Customer charge $18.80/mo; All kWh total rate $0.22361/kWh (delivery $0.09941 + supply $0.12420) | — |
| T General Service | commercial | Small general-service accounts (minimum-charge class). | Minimum charge $18.80/mo; All kWh total rate $0.22299/kWh (delivery $0.09879 + supply $0.12420) | — |
Rate Recommendations by Use Case
Large commercial / industrial facility
Demand-metered large C&I site.
G-1 is the standard large C&I delivery class; the CPT variant rewards curtailing during critical-peak events. Pair with a competitive supply contract to control the ~$0.124/kWh supply component.
- Manage monthly peak kW to limit the $10.41/kW demand charge
- Lock a fixed competitive supply rate to avoid winter supply spikes
Largest / high-load-factor industrial
Long-hour, high-load-factor industrial customer.
G-2 suits steady, long-hour loads; the higher customer and transmission demand charges ($741.65/mo, $25.71/kW) are offset by favorable per-kWh delivery for high utilization.
- Maximize load factor to spread the high demand charges
- Manage coincident peak to limit the transmission demand charge
Mid-size commercial
Smaller demand-metered commercial load.
G-3 has a much lower customer charge ($81.91/mo) than G-1 while still being demand-metered, fitting mid-size commercial loads.
- Track demand to keep the $10.44/kW charge in check
- Shop competitive supply to lower the energy component
Small business / no demand metering
Small general-service commercial account.
V/T are the small general-service classes with a low fixed charge and a simple per-kWh rate (~$0.223/kWh all-in), appropriate for small businesses without demand metering.
- Reduce overall kWh with efficiency upgrades
- Consider a competitive supplier to trim the supply portion
Historical Rate Trends
Liberty's current delivery rates took effect August 1, 2025 under NHPUC Order No. 28,169 in Docket DE 25-030 (the Granite State rate case). For G-1/G-2/G-3 customers, the Default Energy Service component is reset in six-month blocks but adjusts each month, so the all-in rate moves over the year (e.g., the G-1 effective total rose from ~$0.151/kWh in Aug 2025 toward ~$0.197/kWh by Jan 2026).
August 1, 2025
New delivery rates effective under NHPUC Order No. 28,169 (Docket DE 25-030), the Granite State rate case, raising distribution charges across customer classes.
varies by classJanuary 1, 2026
G-1 Default Energy Service block stepped up (G-1 effective on-peak total ~$0.197/kWh effective 1/1/26 vs ~$0.151 in Aug 2025) as winter supply costs rose.
+~30%Overall trend: Delivery rates stepped up in the Aug 2025 rate case; supply component fluctuates monthly within six-month blocks (rising into winter 2025-26).
Next expected change: Next Default Energy Service block reset; delivery rates set until the next NHPUC rate case.
Cost Optimization Strategies
Liberty C&I customers have two distinct levers: (1) reduce the regulated delivery bill by managing demand (kW), and (2) reduce the competitive supply bill by shopping for a fixed-price supplier instead of monthly-adjusting Default Energy Service.
Shop competitive supply
For: G-1, G-2, G-3, V, T
Replace monthly-adjusting Default Energy Service with a fixed-price competitive supplier contract to stabilize and often lower the ~$0.124/kWh supply component.
Demand (kW) management
For: G-1, G-2, G-3
Shave peak demand to lower distribution demand charges ($10.09-$10.44/kW) and, for G-2, the $25.71/kW transmission demand charge.
Critical-peak curtailment (G-1 CPT)
For: G-1 CPT
Elect the G-1 CPT critical-peak TOU and curtail during critical-peak events to capture lower distribution demand exposure.
Verify rate-class fit
For: All demand-metered C&I
Confirm G-1 vs. G-2 vs. G-3 placement against load factor and hours of use; long-hour high-load-factor sites may benefit from G-2 despite its higher demand charges.
To implement these strategies, you need your 15-minute interval data. Learn how to download Liberty Utilities (Granite State Electric) interval data →
Deregulated Market Shopping
Because New Hampshire is deregulated, Liberty C&I customers separate their bill into a regulated delivery charge (set by NHPUC tariff No. 23) and a competitive energy-supply charge. Customers can shop the supply portion with a licensed competitive supplier (CEPS) or default to Liberty's Default Energy Service. Large G-1/G-2 default supply is repriced in six-month blocks with monthly adjustments, so negotiating a fixed competitive supply contract can stabilize budgets.
How to Compare Liberty Utilities (Granite State Electric) Suppliers
- 01Pull 12-24 months of interval/usage data via My Account or the IDR form
- 02Request fixed-price quotes from licensed NH competitive suppliers (CEPS)
- 03Compare the all-in supply $/kWh against Liberty Default Energy Service
- 04Confirm the delivery charge is unchanged regardless of supplier
- 05Execute a contract and the supplier handles enrollment via EDI
Contract Terms for Liberty Utilities (Granite State Electric) Supply Agreements
- Fixed vs. index pricing for the energy-supply component
- Contract length (often 12-36 months for C&I)
- Bandwidth/swing tolerances on usage
- Early-termination fees and renewal/rollover terms
Common Pitfalls When Shopping Liberty Utilities (Granite State Electric) Rates
- Delivery charges are not negotiable and remain on the Liberty bill
- Default Service G-1/G-2 rates change monthly within six-month blocks
- Watch for auto-renewal to higher variable rates at contract end
- Confirm whether quotes include capacity and transmission cost pass-throughs
Frequently Asked Questions
How does a C&I customer or consultant get interval data from Liberty?▾
Submit the Interval Data Request (IDR) form with a customer Letter of Authorization. The first request per calendar year is free; subsequent single-account requests are $55, additional accounts $23 each, and an annual subscription is $309 for one account ($277 per additional account). Data is daily granularity, delivered in 5-10 business days as CSV/Excel.
Can a competitive supplier access Liberty customer usage via EDI?▾
Yes. Enrolled competitive energy suppliers receive usage via EDI 867 and exchange 814/810/820 transactions in ANSI X12 004010. Enrollment requires the NH Supplier Application, a signed service agreement, EDI pre-testing, a $500 business initiation fee, and ISO-NE registration.
Which delivery rate schedules apply to Liberty C&I customers?▾
General Service G-1 serves large commercial/industrial demand-metered customers (with a critical-peak TOU variant, G-1 CPT); G-2 is long-hour large service; G-3 serves smaller demand-metered commercial loads; and V/T serve small general-service accounts. These are delivery (poles-and-wires) rates under NHPUC tariff No. 23.
Does Liberty offer Green Button or a public API?▾
No. Liberty has not implemented Green Button Download/Connect My Data or any public customer-data API. The proposed statewide ESPI platform (RSA 378:51) is uncertain due to repeal efforts (HB 723). Manual CSV/Excel export and the IDR form are the available options.
Can NH businesses shop for a competitive electricity supplier?▾
Yes. New Hampshire is deregulated, so Liberty C&I customers can buy their energy supply from a competitive supplier (CEPS) while Liberty continues delivery, or remain on Liberty Default Energy Service. The delivery charge is unaffected by the supply choice.
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