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.
It’s very important to do your own research to understand the business focus of the company you are considering, as well as tax advantages (and possible disadvantages) if the company is a limited partnership. For example, Seadrill Ltd. SDRL, -4.77% provides offshore-drilling services worldwide. Seadrill Partners LLC SDLP, -3.52% operates offshore-drilling rigs under specific contracts with several major oil companies, including Exxon Mobil Corp. XOM, -2.78% and Chevron Corp. CVX, -2.81%
No deposit electricity plans also offer a subjective advantages. Thanks to smart meters, electricity providers can offer you smartphone apps that send notifications when your balance is getting low, so you can purchase more kilowatt-hours before your account drops to zero. However, this also means you will track your energy consumption more frequently, as opposed to only once per billing period. Energy consumers who monitor their kilowatt-hour usage tend to consume less energy that those who only wait for power bills once per billing period.