TDU Delivery Charge: TDU stands for transmission and delivery utility — in other words, the utility company in your area that is actually piping the energy from the power generation companies into your home. (Remember, REPs in Texas are just the middleman.) The TDU delivery charge is set by the utility and is consistent from plan to plan and provider to provider within its service areas. For example, AEP , the TDU for Corpus Christi, charges the same delivery fee for all TXU, Direct Energy, and Reliant plans. You don't typically get a choice in utility company, and therefore, these fees are pretty much unavoidable, non-negotiable, and won't factor into choosing an electricity plan or provider.
And just like with any plan, it’s worth it to do the math to see how different scenarios will affect your bill. Take, for example, a home in Sweetwater that uses about 1,000 kWh of energy per month, and is interested in the Texas Essentials 12 plan. Zero percent renewable energy is the cheapest option — but by committing to a $5 monthly charge for its 100 percent “JustGreen” option, it’s actually cheaper than the 60 percent hybrid renewable option.
Since that humble beginning, Ambit has welcomed over a million Customers and generated over $1.2 billion in revenue. Chris and Jere’s dream of creating the finest and most-respected retail energy provider in America has driven Ambit’s success. Read Ambit’s full story, and find out more about how you can be a part of this incredible and ongoing success story.
Vista Energy Marketing combines years of top-flight experience in the wholesale energy commodities market purchasing electricity and natural gas with a passion for people. With over 100,000 residential and commercial customers in nine different states, Vista Energy stands out from a crowded field of retail energy company by delivering competitive energy prices and innovative plans that will solve the energy needs of our customers.
When the energy market became deregulated in a majority of Texas in 2002, residents and business owners in these regions earned the power to choose which retail electric provider would supply their electricity. In a deregulated energy market, you could have a range of options for electricity supply rates, which means doing research to find the best one for your needs.

Oasis Energy is one of the most recognized energy marketers in New York, New Jersey, Pennsylvania, Massachusetts, Illinois and Maryland. They supply electricity and natural gas to residential and business customers. They aim to excel at providing the best quality customer support in the industry. They try to achieve this goal by focusing on operational efficiency within the organization and making business decisions that benefit their customers.
Oasis Energy is one of the most recognized energy marketers in New York, New Jersey, Pennsylvania, Massachusetts, Illinois and Maryland. They supply electricity and natural gas to residential and business customers. They aim to excel at providing the best quality customer support in the industry. They try to achieve this goal by focusing on operational efficiency within the organization and making business decisions that benefit their customers.
Spark Energy, Inc. is an established and growing independent retail energy services company founded in 1999 that provides residential and commercial customers in competitive markets across the United States with an alternative choice for their natural gas and electricity. Headquartered in Houston, Texas, Spark currently operates in 16 states and serves 46 utility territories. Spark offers its customers a variety of product and service choices, including stable and predictable energy costs and green product alternatives.
Sperian Energy Corporation is a retail energy provider operating in multiple states across the country, including Illinois, Maryland, Ohio, New Jersey, New York and Pennsylvania. Sperian Energy focuses on exceptional service, innovative technology and competitive pricing in order to add value and provide exceptional service to their residential and commercial customers, both now and into the future. Sperian Energy Corporation is a subsidiary of the SNH Family of Companies, which provide a range of services to large financial institutions, Fortune 500 companies and consumers nationwide.
Since that humble beginning, Ambit has welcomed over a million Customers and generated over $1.2 billion in revenue. Chris and Jere’s dream of creating the finest and most-respected retail energy provider in America has driven Ambit’s success. Read Ambit’s full story, and find out more about how you can be a part of this incredible and ongoing success story.

Spark Energy, Inc. is an established and growing independent retail energy services company founded in 1999 that provides residential and commercial customers in competitive markets across the United States with an alternative choice for their natural gas and electricity. Headquartered in Houston, Texas, Spark currently operates in 16 states and serves 46 utility territories. Spark offers its customers a variety of product and service choices, including stable and predictable energy costs and green product alternatives.
Spark Energy, Inc. is an established and growing independent retail energy services company founded in 1999 that provides residential and commercial customers in competitive markets across the United States with an alternative choice for their natural gas and electricity. Headquartered in Houston, Texas, Spark currently operates in 16 states and serves 46 utility territories. Spark offers its customers a variety of product and service choices, including stable and predictable energy costs and green product alternatives.
Unlike with long-term plans, monthly, variable rate (no-contract) plans have no cancellation fees. You won’t have to pay a penalty if you decide to take your business elsewhere because you found a better deal. Plus, you won’t be left paying more than you should if the market rate for energy trends down. However, if the market prices rise, you’ll have to pay more than those who are in-contract.
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