Compare the top energy tariffs providers in United States — see cover, features and typical rates side by side.
31 live offers compared from 10 providers, from $0. Updated daily.
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Texas largest retail energy provider. Stable fixed rates. 12-month plan with bill credits.
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NRG subsidiary. Competitive fixed rates for TX. Smart home features included.
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100% renewable energy for Texas homes. Wind and solar powered. Green since 1997.
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Competitive fixed rates in Texas. Often among the lowest rates in ERCOT market.
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Available in TX IL OH PA MD. Competitive fixed-rate electricity across deregulated states.
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Available in TX NY PA OH. Fixed and variable options. Popular Live Brighter plan.
$0 ~10.9c/kWh
$0 ~11.5c/kWh
$0 ~11.2c/kWh
$0 ~12.1c/kWh
$0 ~14.0c/kWh
$0 ~12.8c/kWh
$0 ~11.9c/kWh
$0 ~12.5c/kWh
$0 ~13.0c/kWh
$0 ~14.5c/kWh
$0 ~11.5c/kWh
$0 ~12.8c/kWh
$0 Market rate
$0 Market rate
$1.60 /month
$1.60 /month
$100 /month
$200 /month
$200 /month
$200 /month
$200 /month
$200 /month
$200 /month
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$250 /month
Energy tariffs are the plans and rates you pay for electricity and natural gas. In much of the United States utilities are regulated monopolies that bundle supply and delivery into one bill, but in deregulated states you can shop for the supply portion from competing retail energy providers while your local utility still delivers the power and handles outages. Choosing a plan means picking between fixed rates that lock in a price per kilowatt-hour and variable rates that move with the market.
Roughly a third of states have deregulated electricity or gas markets—Texas is the most fully competitive—where retail energy providers compete on price, contract length and green energy options. In regulated states, the public utility commission sets rates and there is no choice of supplier. Deregulated plans are quoted in cents per kilowatt-hour and come as fixed-term contracts, variable month-to-month plans, or indexed plans. Early termination of a fixed contract usually triggers a fee, and plans can include renewable-energy content.
Price certainty — Fixed-rate plans lock your per-kWh rate for the contract term, shielding you from spikes.
Choice and competition — In deregulated states you can shop suppliers to find a lower rate.
Green options — Many providers offer 100% renewable plans sourced from wind or solar.
Plan flexibility — Free-nights, time-of-use and month-to-month options match different usage patterns.
First confirm whether your state and utility are deregulated—if not, you have a single regulated rate. Where you can shop, compare the all-in rate per kilowatt-hour at your typical usage level, since some plans advertise a low headline rate that only applies at a specific monthly usage. Check the contract length, early-termination fee, whether the rate is fixed or variable, and the renewable content. Read the Electricity Facts Label (in Texas) or equivalent disclosure before signing.
In deregulated markets, Constellation Energy, Direct Energy and IGS Energy operate across multiple states for both electricity and gas. TXU Energy, Reliant Energy and Gexa Energy are major retail providers in the Texas market, offering a range of fixed and time-of-use plans. Green Mountain Energy and Verde Energy specialize in renewable-focused plans for customers who want cleaner power. In regulated states, your local investor-owned utility remains the sole provider.
Electricity is priced per kilowatt-hour, with competitive plans commonly ranging from roughly 9 to 16 cents per kWh depending on the state, plan and season, on top of utility delivery charges. A typical household's monthly bill therefore depends on usage and local rates. Fixed plans may carry early-termination fees if you leave before the term ends, and some low-rate plans include monthly usage minimums or base charges that raise the effective cost for low users.
Retail energy providers are licensed and overseen by state public utility commissions, which enforce disclosure rules, handle complaints and, in states like Texas, run official comparison sites. Providers must give standardized plan disclosures so you can compare rates fairly. Your local utility remains responsible for reliability and restoring outages regardless of who supplies your energy, and consumers retain the right to switch suppliers.
Can everyone choose their supplier? No—only customers in deregulated states and utilities can shop; elsewhere the utility rate applies. Fixed or variable? Fixed protects against price spikes, while variable can be cheaper short-term but risks rising bills. Do I lose reliability if I switch? No—your local utility still delivers power and handles outages no matter which retail provider you pick.
The cheapest Energy Tariffs in United States is $0 ~13.5c/kWh from TXU Energy.
Giraffy tracks 5 energy tariffs across TXU Energy,Reliant Energy,Green Mountain Energy,Gexa Energy,Constellation Energy suppliers in United States. The lowest tracked tariff is $0 ~13.5c/kWh. Your actual bill depends on usage, property size, and tariff type — compare based on estimated annual cost for a typical household.
A fixed tariff locks your unit rate and standing charge for a set period (typically 12–24 months), protecting you from price rises. A variable tariff can go up or down with wholesale energy prices. Fixing is worth it when wholesale prices are expected to rise; staying variable is better when they're likely to fall.
The unit rate is what you pay per kWh of electricity or gas you actually use. The standing charge is a daily fee you pay regardless of usage — it covers the cost of maintaining your connection. Both figures appear on your bill and should be compared when switching suppliers.
A smart meter automatically sends your usage readings to your supplier, ending estimated bills. You don't need one to switch suppliers — your new supplier can read your old meter or you can submit manual readings. Smart meters are being rolled out across most markets; installation is free from your current supplier.
Switching is typically straightforward — you sign up with a new supplier and they handle the switch, including notifying your old supplier. In most markets, the switch takes 5–21 working days and requires no service interruption. Your direct debits, meter readings, and any exit fees need to be settled first.
Fixed-term tariffs often charge an exit fee (typically £30–£150 per fuel) if you leave before the end date. Variable tariffs usually have no exit fees. Check your current contract before switching — if you have several months remaining and the exit fee is high, it may be cheaper to wait.