US retail energy supplier

CenStar Energy US

A dual-fuel retail-energy supplier active in New York, New Jersey and Ohio. Owned by Via Renewables (NASDAQ: VIA, formerly Spark Energy) since 2015, CenStar Energy supplies electricity and natural gas to Con Edison and other Mid-Atlantic / Midwest utility territories.

See CenStar Energy plans

New Rochelle, NY 3 states served

About

Who is CenStar Energy?

Registered as CenStar Energy Corp., CenStar 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 New Rochelle, NY, where it runs senior management, customer operations and regulatory liaison with state commissions.

CenStar Energy is part of the Via Renewables, Inc. (formerly Spark Energy) group, which provides shared governance, financial backing and a broader pool of expertise in wholesale-market trading, hedging and regulatory work.

Service area

Where CenStar Energy operates

Electricity

3 states

Natural gas

3 states

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

Plan structure

What plan types does CenStar Energy offer?

Fixed-rate electricity

Lock in a per-kWh supply rate for a defined contract term. Available in NJ, NY and Ohio deregulated utility territories.

Fixed-rate natural gas

Lock in a per-therm gas commodity rate for the contract term. Available across the same three-state footprint where gas-utility unbundling allows third-party supply.

Variable-rate plans

Month-to-month plans where the unit rate can change each billing cycle, tied to wholesale-market prices.

See current CenStar Energy plans & rates

Timeline

CenStar Energy — key moments

2015

Spark Energy, Inc. (now Via Renewables) acquired CenStar Energy, adding it to the parent's multi-state retail-supplier portfolio (SEC 8-K filing, July 2015).
2022

Parent company Spark Energy rebranded to Via Renewables, Inc. (NASDAQ: VIA) to reflect its renewable-energy positioning.

Contact

Reach CenStar Energy customer service

CenStar 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.

CenStar Energy is part of the Via Renewables (formerly Spark Energy) family — escalations may be routed through the parent's customer-service team.
For an outage or downed wires, call your local utility (e.g. Con Edison, PSE&G, AEP Ohio) — never the retail supplier.
Confirm the current rate sheet directly on censtarenergy.com with your zip code before signing up.

CenStar Energy online account

Frequently asked

CenStar Energy — answers to common questions

CenStar 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 CenStar Energy's website. 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.