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Eversource Energy mailing address

To mail a letter to Eversource Energy, an electric & natural-gas utility serving Connecticut, Massachusetts, and New Hampshire, send it to the correspondence address at Eversource Energy, 300 Cadwell Drive, Springfield, MA 01104. Eversource Energy's utility subsidiaries deliver electricity, natural gas, and water across Connecticut, Massachusetts, and New Hampshire. This is Eversource Energy's publicly listed correspondence address — for billing disputes, service requests, account closures, and formal notices. It's not the address utilities use for bill-payment remittance; use the PO Box printed on your own bill for payments. Add your return address if you'd like a reply, and confirm this address on Eversource Energy's official contact page before anything time-sensitive.

Eversource Energy — correspondence address

Eversource Energy
300 Cadwell Drive
Springfield MA  01104

Written correspondence — billing disputes, service requests, account closures, and formal notices. Not the separate address used for bill-payment remittance; use the payment stub or PO Box printed on your own bill for that.

Verified September 2026sec.gov

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Your name
Your return address

Eversource Energy300 Cadwell DriveSpringfield, MA 01104

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Key facts

  • This is Eversource Energy's correspondence mailing address, taken from the utility's own contact page.
  • Eversource Energy is an electric & natural-gas utility serving Connecticut, Massachusetts, and New Hampshire.
  • Use it for letters, disputes, service requests, and formal notices — not for bill payments, which go to a separate PO Box printed on your bill.
  • Include your account number and service address so the utility can find your file.
  • Include your return address and a reference number so the utility can respond.
  • PostPal prints your letter and mails it for you — no printer, envelope, stamps, or post office trip.

How to send your letter

  1. 1

    Decide what your letter is for

    Use this address for written correspondence — a billing dispute, a service request, an account closure, or a formal notice. If you're mailing a cheque or payment, use the remittance address printed on your own bill instead; utilities almost always route payments to a separate PO Box.

  2. 2

    Write your letter

    Include your account number, your service address (if different from your mailing address), the outcome you're looking for, and your return address so Eversource Energy can respond.

  3. 3

    Address it to the correspondence address

    First line: Eversource Energy. Then the street: 300 Cadwell Drive. Then the city line: Springfield MA 01104.

  4. 4

    Send it with PostPal

    Write or upload your letter to PostPal with the address above prefilled. We print it, add your return address, and mail it for you — no printer, envelope, stamps, or trip to the post office.

Common questions

What does Eversource Energy do?

Eversource Energy's utility subsidiaries deliver electricity, natural gas, and water across Connecticut, Massachusetts, and New Hampshire. It serves Connecticut, Massachusetts, and New Hampshire. The address above is its correspondence address — the right place for account letters, disputes, and formal notices.

What is Eversource Energy's mailing address?

Eversource Energy, 300 Cadwell Drive, Springfield, MA 01104. This is Eversource Energy's publicly listed correspondence address. Confirm it on Eversource Energy's official contact page before anything time-sensitive — utilities occasionally change offices and PO Boxes.

Can I mail my bill payment to this address?

Not usually. This is a correspondence address for letters, not the payment-processing address most utilities use for mailed cheques. Use the remittance address or PO Box printed on your own bill for payments, and this address for everything else — disputes, service requests, and written notices.

How do I dispute a charge or file a complaint by mail?

Write a clear, dated letter explaining the charge or issue, include your account number and any supporting documents, state what resolution you're asking for, and include your return address. Mailing it creates a dated paper record, which can help if the dispute escalates.

How do I close or transfer my account by mail?

Include your account number, the closing/transfer date, your forwarding address, and a phone number in case Eversource Energy needs to confirm details. Most utilities also offer this online or by phone, which is often faster if you're on a tight moving deadline — mail is best for a written record or when online/phone options aren't available.

How do I mail Eversource Energy a letter without a printer?

Write or upload your letter to PostPal with the address prefilled. We print it, add your return address, and mail it for you — no printer, stamps, or post office trip needed.

Sources

Addresses verified September 2026 against official sources. Always confirm on the official site before time-sensitive filings.

See all utility-company mailing addresses →

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