US retail energy supplier

IDT Energy US

A Newark, NJ-based dual-fuel ESCO and subsidiary of Genie Energy Ltd (NYSE: GNE). Founded in 2004, IDT Energy supplies retail electricity and natural gas to households across six Mid-Atlantic states and the District of Columbia. Q3 2025 Genie Energy reporting cites approximately 318,000 retail electricity customers.

See IDT Energy plans Call 1-877-887-6866

Founded 2004 Approximately 318,000 retail electricity customers (Q3 2025) Newark, NJ 6 states served

Founded

2004

Years in the US market

Customers

Approximately 318,000 retail electricity customers (Q3 2025)

Households served

About

Who is IDT Energy?

Registered as IDT Energy, Inc., IDT Energy uses this legal name for state public-utility-commission filings and customer contracts. The trading name on bills is the shorter, more recognisable form.

The company is headquartered in Newark, NJ, where it runs senior management, customer operations and regulatory liaison with state commissions.

IDT Energy was established in 2004. A longer track record means more years operating under state-commission rules and a wider history of customer feedback, billing and regulatory interactions.

IDT Energy is part of the Genie Energy Ltd (NYSE: GNE) group, which provides shared governance, financial backing and a broader pool of expertise in wholesale-market trading, hedging and regulatory work.

Service area

Where IDT Energy operates

Electricity

6 states

Natural gas

4 states

Service availability varies by zip code within each state. Eligibility depends on your local utility's deregulation status — check on IDT Energy's website with your zip code before enrolling.

Plan structure

What plan types does IDT Energy offer?

Smart Budget (fixed)

Fixed unit rate for a 12-month term with no early-termination fee. The headline product, designed for households who want a predictable bill without a lock-in penalty.

Smart Flex (variable)

Variable-rate plan with no contract. The unit rate changes each billing cycle to follow wholesale market prices.

Green Energy (REC matched)

Renewable Energy Certificates (RECs) offset electricity use with green energy generation across the United States. Available as an add-on to the standard fixed or variable plan.

Renewable content: IDT Energy offers Renewable Energy Certificates (RECs) that offset electricity usage with green energy generation across the United States. The REC option is available as an add-on to the Smart Budget and Smart Flex plans.

See current IDT Energy plans & rates

Timeline

IDT Energy — key moments

2004

IDT Energy founded as the retail-energy division of IDT Corporation (the telecoms company), initially supplying residential customers in New York State.
2009

IDT Energy exceeded 100,000 customers across the New York and New Jersey deregulated markets.
2011

Genie Energy Ltd spun off from IDT Corporation as a standalone NYSE-listed entity (GNE) on 31 October 2011, with IDT Energy as its flagship retail-energy subsidiary.
2025

Genie Energy reported record Q3 quarterly revenue of $138.3 million and approximately 318,000 retail-electricity customers. Audit Committee announced a restatement of prior 2023-2025 financial statements over a captive-insurance accounting issue.

Contact

Reach IDT Energy customer service

IDT Energy's customer service handles enrollment questions, billing, switching and complaints. Have your account number from a recent bill ready to speed up the call.

Have your IDT Energy account number from a recent bill ready to speed up the call.
For service outages or downed wires, call your local utility — not IDT Energy.
Smart Budget fixed plan has no early-termination fee — customers can switch at any time.
Reward points are earned through energy consumption and $50 referral bonuses are available.

Customer service

1-877-887-6866

Mon-Fri 9 a.m. - 7 p.m. ET

IDT Energy online account

Frequently asked

IDT Energy — answers to common questions

IDT Energy is regulated by the public utility commission in each state where it operates. Reliability is best judged against your own usage profile: read recent reviews, confirm the customer-service hours match when you actually need to call, and compare the unit rate against the utility's price-to-compare for your zip code.

Plans can typically be enrolled directly on IDT Energy's website or by calling 1-877-887-6866. Before signing up, always compare the unit rate (¢/kWh for electricity, $/therm for gas) against your utility's price-to-compare for your zip code.

You can switch your retail supplier at any time, though early termination fees (typically $50-$200) may apply if you are on a fixed-rate plan and within the contract term. Check your enrollment letter or Terms of Service for the exact figure. Switching back to your default utility supply is always free.