Eversource Rate per kWh: Current Electricity Cost, Rates and Bill Guide

The Eversource Rate per kWh depends on where you live, because Eversource serves customers in Connecticut, Massachusetts, and New Hampshire. Your electric bill also includes more than the electricity supply charge. Delivery, transmission, public benefit charges, taxes, and other regulated fees can make the final amount much higher than the advertised supply rate.

For this reason, checking the Eversource Rate per kWh on your latest bill is the most accurate way to estimate what you are paying for electricity. Rates can also change during the year when regulated default supply rates are updated.

Eversource Electricity Rate per kWh by State (Updated August 2026)

The Eversource electricity rate per kWh varies by state because Eversource operates under separate state-regulated electricity supply programs in Connecticut, Massachusetts, and New Hampshire. The rate customers pay for electricity supply can therefore differ depending on the state, service territory, customer class, and current billing period.

For August 2026, the residential supply rates range from 11.577¢ to 17.323¢ per kWh across Eversource’s three major service areas.

It is important to understand that the rates below are electricity supply rates, not the complete amount shown on your Eversource bill. Supply charges cover the cost of the electricity itself, while delivery charges cover the poles, wires, meters, and distribution system. Taxes, public-policy charges, and other applicable fees may also affect your final electricity bill.

Current Eversource Rate per kWh by State

Quick comparison: As of August 2026, Eversource’s lowest listed residential supply rate is 11.577¢/kWh in Connecticut, while Massachusetts has the highest at 17.323¢/kWh. New Hampshire’s rate is 14.009¢/kWh.

How Eversource Electricity Rates per KWh Changed in 2026

Eversource’s supply rates have changed considerably across its three states during 2026. Connecticut’s residential standard-service rate decreased from 12.641¢ to 11.577¢ per kWh on July 1, 2026. In Massachusetts, the residential basic-service rate increased from 15.629¢ to 17.323¢ per kWh on August 1, 2026.

New Hampshire experienced an even larger increase. The Eversource default-service rate for small customers rose from 11.303¢ to 14.009¢ per kWh, an increase of approximately 23.94%.

These changes demonstrate why checking the current billing period is important when calculating your Eversource electricity cost.

Eversource Rate per KWh History by State

Why Eversource Rates Differ by State

Eversource does not have one nationwide electricity price. Each state has its own regulatory process for procuring electricity supply. The resulting Standard Service, Basic Service, or Default Service rate is generally passed through to eligible customers based on the applicable state program.

This means an Eversource customer in Connecticut may pay a different supply rate than an Eversource customer in Massachusetts or New Hampshire, even when both households use the same amount of electricity.

The rate can also differ based on the customer’s service classification. Residential customers, small businesses, large commercial customers, and customers with electric heating may have different applicable rates.

Supply Rate vs. Total Eversource Electricity Rate

The supply rate should not be confused with the total price per kWh on an Eversource electricity bill.

For this reason, multiplying your usage by the supply rate alone will not necessarily equal your final Eversource bill.

How to Calculate Your Eversource Electricity Cost

You can estimate the electricity supply portion of your bill with this simple formula:

Electricity Supply Cost = Electricity Usage (kWh) × Supply Rate ($/kWh)

For example, if a Connecticut household uses 750 kWh during the July–December 2026 rate period:

750 × $0.11577 = $86.83

So the estimated supply cost is about $86.83, before delivery charges, taxes, and other applicable fees.

For a more realistic estimate of your total monthly bill, include the applicable Eversource delivery and other charges in addition to the supply rate.

For a quick estimate of your monthly electricity costs, try our Eversource bill calculator to calculate your expected bill based on usage.

Why Your Eversource Bill Is Higher Than the Supply Rate

Many homeowners see a supply rate advertised in cents per kWh and expect their entire bill to use that number. That is usually not how a utility bill works.

Your total electric bill can contain:

• Electricity supply charges
• Distribution or delivery charges
• Transmission charges
• Public benefit charges
• Energy efficiency charges
• Renewable-energy-related charges
• Fixed customer charges
• State and local taxes
• Other approved regulatory adjustments

This means the effective price you pay for each kWh can be considerably higher than the generation or supply rate alone.

For example, consider a hypothetical household using 800 kWh:

The $250 bill produces an effective rate of 31.3 cents per kWh, even though the electricity supply component was only 15 cents per kWh in this example.

For homeowners comparing electricity costs across utilities, our US Electricity Bill Calculators by Utility can make the calculation easier by helping estimate bills using local utility rates.

How to Find Your Actual Eversource Rate

The easiest way to determine your current Eversource Rate per kWh is to open your latest electric bill.

Look for sections labeled:

1. Electricity supply or energy supply
2. Delivery service
3. Current charges
4. Usage in kWh
5. Supplier or default service
6. Rate per kWh

Your bill should show the number of kWh used during the billing period. It may also show separate rates for supply and delivery.

If you want the effective rate rather than just the supply price, divide the total electric charges by your total kWh usage.

Effective rate = Total electricity charges ÷ Total kWh used

For example:

These figures are examples for understanding the calculation and are not quoted Eversource tariff rates.

Want to know what your actual Eversource bill could look like? Use our Eversource bill calculator to estimate charges from your electricity consumption.

How Much Does 500, 1,000 or 1,500 kWh Cost?

The easiest way to estimate your electricity cost is to multiply your consumption by the applicable effective rate.

This table is useful for budgeting, but your actual Eversource bill will depend on your service territory, billing period, rate structure, and other charges.

How Eversource Rates Affect Your Monthly Bill

Electricity consumption can vary substantially throughout the year. Heating and cooling equipment are often major contributors to residential electricity usage.

Actual consumption depends on operating time, equipment efficiency, weather, and household behavior.

If you are comparing your Eversource bill with another utility, use our US Electricity Bill Calculators by Utility to estimate electricity costs using a consistent calculation method.

Eversource Supply Rate vs Total Electricity Rate

One of the most important differences to understand is the difference between a supply rate and an effective bill rate.

The supply rate represents the cost of the electricity itself. The total electricity rate reflects the broader cost appearing on your bill.

This distinction matters when comparing a competitive supplier with Eversource default service. A low advertised supply rate does not automatically mean the lowest final bill.

How to Lower Your Eversource Electricity Bill

If your electricity costs are rising, reducing kWh consumption can have a meaningful effect.

Start with the largest energy users rather than focusing only on small electronics.

Practical options include:

• Improve home insulation and air sealing.
• Use programmable or smart thermostats.
• Replace older lighting with LED bulbs.
• Maintain heating and cooling equipment.
• Use efficient appliances when replacement is needed.
• Wash clothes with cold water when practical.
• Reduce unnecessary standby loads.
• Monitor monthly kWh consumption.
• Consider solar if your property is suitable.
• Review competitive electricity supply offers carefully.

Solar can be particularly useful for households with high daytime consumption, although savings depend on system size, utility rules, incentives, financing, and applicable net-metering or compensation arrangements.

Planning your energy budget? Our Eversource bill calculator makes it easy to estimate your monthly electricity bill using your expected kWh usage.

Eversource Rate per kWh FAQs

Final Thoughts

Understanding the Eversource Rate per kWh requires looking beyond the electricity supply price. Your location, supply option, delivery charges, fixed fees, taxes, and regulated public-policy charges all affect the amount you ultimately pay.

For the most accurate estimate, use the kWh shown on your latest bill and calculate your effective electricity rate from the total charges. This gives you a better picture of your real household energy cost and makes it easier to compare suppliers, utilities, energy-efficiency upgrades, and solar savings.

For a quick comparison of electricity costs across different American utilities, visit our US Electricity Bill Calculators by Utility and calculate your estimated monthly electricity bill based on your usage and utility.

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