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Calculator-ready

National Grid MA Electricity Rates & Bill Calculator

National Grid Massachusetts residential rate-source coverage is tracked.

Compare with Massachusetts average →
Modeling statusCalculator-readyselectable in supported calculators
Official sourceTrackedreviewed 2026-09-28
State benchmark30.49¢/kWhEIA · 2026-07
Service areaNational Grid Massachusetts electric territory
Featured planR-1 Residential · Fixed Basic Service
Pricing modelFlat / fixed energy rate
Last verified2026-09-28
Calculator-ready: verified numerical rate components are encoded for supported calculations. Effective from 2026-08-01. Unknown bill components remain excluded rather than treated as $0.
Calculate bill with National Grid MACompare Massachusetts averageEV charging calculator
Whole-bill integration: R-1 Residential · Fixed Basic Service is safe for the current bill calculator model (flat energy pricing).
39.512¢/kWhCurrent calculator benchmark · R-1 default service · Massachusetts Electric
Calculator-ready benchmark. Current Massachusetts Electric R-1 marginal benchmark combines 22.327¢/kWh of published delivery components with 17.185¢/kWh Fixed Basic Service supply for Aug 1 2026–Jan 31 2027. Nantucket cable surcharge and the $10 monthly customer charge are excluded. Delivery riders can change, so this version is bounded for refresh.

What is modeled

Calculator-ready marginal residential benchmark for National Grid Massachusetts Electric territory.

Service area: National Grid Massachusetts electric territory

Calculator boundary

Current Massachusetts Electric R-1 marginal benchmark combines 22.327¢/kWh of published delivery components with 17.185¢/kWh Fixed Basic Service supply for Aug 1 2026–Jan 31 2027. Nantucket cable surcharge and the $10 monthly customer charge are excluded. Delivery riders can change, so this version is bounded for refresh.

Rate version & freshness

Version IDcr.national-grid-massachusetts.standard-residential.2026-09.v1
Effective from2026-08-01
Effective to2026-09-30
Last verified2026-09-28
FreshCalculator-ready

This tariff snapshot is versioned and source-attributed. When a verified rate changes, CalcuRiver keeps this version in history and adds a new one instead of silently overwriting it.

Official source trail

National Grid official Massachusetts service-rate page

Open official source →
Source profile reviewed Sep 28, 2026.

EV charging cost examples on National Grid MA

Vehicle-specific pages below apply R-1 Residential · Fixed Basic Service to each EV’s verified charging-efficiency profile and compare it with the Massachusetts statewide average.

Tesla Model Y charging costTesla Model 3 charging costChevrolet Equinox EV charging costFord Mustang Mach-E charging costHyundai Ioniq 5 charging costFord F-150 Lightning charging costRivian R1S charging costKia EV9 charging cost
rate depth

How National Grid MA differs from the Massachusetts average

Pricing structureProfile-only / tariff reference
Lowest encoded periodNot encodedNo safe numeric period
Highest encoded periodNot encoded
State benchmark30.49¢/kWhEIA · 2026-07
Effective from2026-08-01
Last verified2026-09-28
Calculator statusCalculator-ready
Featured planR-1 Residential · Fixed Basic Service

Eligibility / billing boundary: Current Massachusetts Electric R-1 marginal benchmark combines 22.327¢/kWh of published delivery components with 17.185¢/kWh Fixed Basic Service supply for Aug 1 2026–Jan 31 2027. Nantucket cable surcharge and the $10 monthly customer charge are excluded. Delivery riders can change, so this version is bounded for refresh.

The state average is a benchmark, not a substitute for this tariff. A low or high encoded period is a marginal energy price and should not be interpreted as a complete monthly bill unless the page explicitly says whole-bill modeling is supported.

Official source: Current official utility/regulator rate source.

whole-bill calculator

National Grid MA electricity bill calculator

Current statusWhole-bill model supported
Verified planR-1 Residential · Fixed Basic Service
Pricing modelFlat

Use the same verified tariff model at any monthly usage level. CalcuRiver does not create separate SEO pages for 500, 1,000, 1,500 or 2,000 kWh.

500 kWhEstimate this bill →1,000 kWhEstimate this bill →1,500 kWhEstimate this bill →2,000 kWhEstimate this bill →

The calculator includes only rate components encoded and verified for this plan. Any excluded taxes, riders, credits or local charges remain disclosed rather than assumed to be $0.

Continue this cost analysis

Carry this utility context into the household-energy calculators where it materially changes the result.

Massachusetts electricity ratesCompare this utility with the current state residential benchmark.National Grid MA home battery economicsUse this utility context for storage and time-of-use economics.EV charging in MassachusettsSee vehicle charging costs in the same electricity market.
local cost context

Use this utility across CalcuRiver

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EV charging in this state

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Solar economics for this utility

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Battery + TOU economics

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Home charger installation

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