Electricity is priced in three stacked layers: the cost of generating power at a plant, moving it across high-voltage transmission lines, and delivering it through local distribution wires to your meter. On top of those physical costs sit wholesale market rules, state regulatory decisions, fuel price swings, mandated programs, and a handful of non-usage fees. The national average residential price sits around 17 cents per kilowatt-hour as of late 2025, though that figure hides enormous variation depending on where you live, which market model your state uses, and how you consume power.1U.S. Energy Information Administration. Electric Power Monthly – Average Retail Price of Electricity
The Three Physical Costs Behind Every Kilowatt-Hour
Every unit of electricity you use passes through three infrastructure stages before it reaches your meter, and each stage shows up in your rate.
Generation is the cost of actually producing electricity at a power plant, whether that plant burns natural gas, splits atoms, or captures wind. This layer covers fuel, plant construction debt, wages, and maintenance. It typically represents the largest single share of a residential bill. The mix of generation sources in your region heavily influences this cost: areas that rely on cheap natural gas or legacy hydroelectric dams tend to have lower generation charges than regions dependent on imported fuel or aging coal plants.
Transmission moves that power over high-voltage lines, often hundreds of miles, from remote plants to population centers. The towers, heavy-gauge cables, and substations that step voltage up and back down are expensive to build, but because they serve huge geographic areas, the per-customer share is usually the smallest slice of your bill.
Distribution is the last mile: the wooden poles, street-level wires, neighborhood transformers, and underground conduits that bring power from a local substation to your meter. This network requires constant upkeep, including tree trimming, storm repair, and equipment replacement. Aging distribution infrastructure across many service territories has driven significant rate increases in recent years as utilities replace decades-old equipment.
How Wholesale Prices Get Set
Before electricity ever reaches your bill, generators sell it into a wholesale market. The mechanics at this level shape what you eventually pay at retail.
Locational Marginal Pricing
In most organized wholesale markets, electricity is priced through locational marginal pricing, or LMP. Rather than one flat price across a region, the grid operator calculates a price at thousands of individual nodes based on three factors: the cost of generating the next megawatt-hour of energy, the cost of transmission losses as power moves between points, and any congestion charges where transmission lines are maxed out. When a bottleneck prevents cheaper power from reaching a certain area, prices at nodes behind that bottleneck rise because more expensive local generators have to fill the gap.
Capacity Markets
Some regions also run capacity markets, which pay generators not for the electricity they produce but for the commitment to be available when needed. Power suppliers bid into auctions, and winning bidders earn payments for standing ready to deliver whenever the grid operator calls on them.2Federal Energy Regulatory Commission. Understanding Wholesale Capacity Markets These capacity payments get passed through to retail rates and can represent a meaningful chunk of your bill, especially in regions with tight supply margins.
Who Sets Your Rate: Regulated vs. Deregulated States
The market model your state uses determines who controls pricing decisions and how much choice you have. The U.S. runs two fundamentally different systems side by side.
In roughly 30 states, a single utility company owns the entire supply chain, from power plants to distribution wires. A state public utility commission oversees that monopoly and approves the rates it can charge through a formal proceeding called a rate case. The utility files detailed financial records showing its costs, and the commission reviews those figures to set rates that let the company earn a reasonable return without overcharging captive customers. The process can take months and involves public hearings, expert testimony, and negotiations. The tradeoff: you get price stability and a single accountable provider, but you have no choice in who supplies your power.
Roughly 18 states plus Washington, D.C. have restructured their markets to separate power generation from delivery. In these regions the local utility still owns and maintains the physical wires, but you can shop among competing retail electric providers for your energy supply. Providers offer different contract terms, pricing structures, and green-energy options. The competitive pressure is supposed to drive innovation and lower prices, though results have been mixed. Some consumers benefit from careful shopping, while others end up on expensive default plans because they never actively chose a provider.
What Makes Prices Move
Even within a stable market structure, several forces push prices up and down, sometimes dramatically.
Fuel Costs
Natural gas sets the price for a large portion of U.S. electricity generation, and gas prices are volatile. Global export demand, pipeline constraints, seasonal heating needs, and production disruptions all ripple into wholesale power prices. When gas prices spike, generators raise their offers, and those higher costs flow through to retail bills within weeks on variable-rate plans or at the next contract renewal for fixed-rate customers. Gas plants are frequently the marginal generator, meaning the last unit dispatched to meet demand, so their fuel cost tends to set the clearing price for everyone else.
Weather and Peak Demand
Extreme heat and cold drive electricity consumption to its highest levels, as air conditioners and electric heaters run simultaneously across entire regions. During these peaks, grid operators call on older, less efficient plants, sometimes called peaker plants, that sit idle most of the year. These units are expensive to run precisely because they’re rarely used, and their high operating costs push wholesale prices sharply upward. A single brutal heat wave can produce wholesale price spikes that dwarf normal daily rates.
Grid Congestion
When transmission lines hit their physical capacity limits, cheap power from one area can’t reach another. The constrained area has to rely on local, more expensive generation to keep the lights on. These bottlenecks show up in wholesale prices as congestion charges under locational marginal pricing. Persistent congestion often signals the need for new transmission investment, but building high-voltage lines involves years of permitting and billions in capital, so the price effects can linger.
Renewable Energy Mandates
Twenty-eight states plus Washington, D.C. require utilities to source a minimum percentage of their electricity from renewable sources through renewable portfolio standards. Compliance costs average roughly 4% of retail electricity bills nationwide, though the range is wide. The share is under 1% in some states and above 10% in a handful of others.3Lawrence Berkeley National Laboratory. U.S. State Electricity Resource Standards – 2025 Data Update The cost depends on local renewable energy availability, policy design, and whether utilities locked in favorable long-term contracts when solar and wind were cheaper. As renewable costs have dropped, the compliance cost gap between mandated and non-mandated states has narrowed in many regions.
The Retail Plan You’re On
Wholesale and regulatory costs ultimately reach you through one of a few retail billing structures. Which one you’re on, by choice or by default, determines how predictable your monthly bill is.
Fixed-Rate Plans
A fixed-rate plan locks in a specific price per kilowatt-hour for a set contract term, commonly 12 to 36 months. Your rate stays the same regardless of what happens in the wholesale market, which protects you from seasonal spikes. The tradeoff is that you’ll typically pay an early termination fee if you leave before the contract ends, and if wholesale prices drop, you’re stuck at the higher locked-in rate until your term expires. These plans are available primarily in deregulated states.
Variable-Rate Plans
Variable-rate plans have no long-term commitment and adjust monthly based on current wholesale energy trends. You can leave anytime without penalty, but your bill may swing significantly from one month to the next. In regulated states, most residential customers are effectively on a form of variable rate. Their tariff changes only when the public utility commission approves a rate adjustment, which happens far less frequently than monthly market swings.
Time-of-Use Rates
Time-of-use plans charge different prices depending on when you consume electricity. Peak hours, typically late afternoon through early evening when demand is highest, carry a premium. Off-peak hours, usually late at night and early morning, come at a lower rate. The exact hours and price differentials vary by utility and season. Summer peak windows tend to center on afternoon cooling demand, while winter peaks may split between morning and evening heating hours. If you can shift heavy-use activities like laundry, dishwashing, or electric vehicle charging to off-peak windows, you can meaningfully reduce your bill.
The Non-Usage Charges on Your Bill
Your electricity bill includes charges that have nothing to do with how many kilowatt-hours you consumed. These line items add up and are easy to overlook.
The fixed monthly customer charge, sometimes called a base charge or service fee, covers the utility’s cost of maintaining your account, reading your meter, and keeping the connection active. You pay this even in a month where you use zero electricity. The amount varies by utility but is a standard feature of virtually every residential rate structure.
Franchise fees are another common surcharge. Utilities pay municipalities for the right to run wires through public rights-of-way, and those costs get passed to customers as a line item on the bill.4U.S. Environmental Protection Agency. Utility Franchise Agreements Summary Report Some jurisdictions charge a flat per-customer fee; others take a percentage of the utility’s gross revenue in the area.
Beyond franchise fees, you’ll often see line items for public benefit programs that fund energy efficiency and low-income assistance, regulatory compliance recovery for environmental or reliability mandates, and state and local taxes. Individually, most of these charges are small. Collectively, they can add 10% to 20% on top of your energy and delivery charges.
If You Have Rooftop Solar
Solar customers sit on a different pricing arrangement from everyone else. Under traditional net metering, still available in some form in 38 states plus Washington, D.C., excess electricity you send back to the grid earns credits at the full retail rate.5National Conference of State Legislatures. State Net Metering Policies Those credits offset the electricity you pull from the grid at night or on cloudy days. At the end of an annual billing cycle, any remaining surplus is typically compensated at a much lower rate, often around 2 to 3 cents per kilowatt-hour, reflecting wholesale value rather than retail.
Several states are shifting from traditional net metering toward net billing structures that value exported solar electricity differently. Under net billing, your excess generation earns credits based on what that power is actually worth to the grid at the moment you export it, which is usually less than the retail rate but can spike above it during high-demand evenings. The economics of rooftop solar increasingly depend on how much of your own generation you consume directly rather than how much you export, which is why battery storage paired with solar has become more attractive under these newer tariff designs.