Delivery Charge vs Supply Charge on Your Utility Bill: What's the Difference?
Delivery charge and supply charge make up your total utility cost. Learn what each covers, how to read them on your bill, and how deregulated markets split these charges.
Open your electric bill and you will likely see two separate charge sections — one labeled “Delivery” and another labeled “Supply” (or “Generation”). Together, they account for roughly 70% to 80% of your total bill. Understanding what each one covers is the single most important step toward making sense of your utility costs, especially if you live in a deregulated market where you can shop for supply rates.
Table of Contents
- What Is the Delivery Charge on a Utility Bill?
- What Is the Supply Charge on a Utility Bill?
- How Much of Your Bill Is Delivery vs. Supply?
- Delivery Charges Broken Down
- Supply Charges Broken Down
- Regulated Markets: One Utility, Two Functions
- Deregulated Markets: Where You Can Shop for Supply
- Can You Reduce Your Delivery Charge?
- Can You Reduce Your Supply Charge?
- Delivery and Supply on Natural Gas Bills
- Frequently Asked Questions
What Is the Delivery Charge on a Utility Bill?
The delivery charge covers the cost of transporting electricity from the power plant (or regional transmission hub) to your home through the utility’s infrastructure. This includes the high-voltage transmission lines, local distribution poles and wires, transformers, substations, the service drop to your house, and the meter itself.
Think of it like shipping costs on an online purchase. You are paying for the logistics of getting the product to your door, regardless of what the product itself costs. The delivery charge is the “shipping and handling” of your electricity.
Delivery charges are almost always set by the utility and approved by your state’s public utility commission. You cannot negotiate them, and in most markets, you cannot choose a different delivery provider. The wires and pipes serving your home are a natural monopoly — there is only one set of infrastructure, so there is only one company that can deliver to you.
The delivery charge is typically structured in two parts:
- A fixed customer charge: A flat monthly fee (often $8–$20) just for being connected to the grid.
- A per-kWh distribution charge: A variable rate (often $0.03–$0.08 per kWh) based on how much electricity you consume.
Some utilities also include a demand charge for larger residential customers or customers on time-of-use rate plans, which adds a component based on your peak usage during the billing period.
What Is the Supply Charge on a Utility Bill?
The supply charge covers the actual cost of generating the electricity (or purchasing it from generators) that you consume. This is the “wholesale” cost of the power itself, before it travels through any wires.
The supply charge is usually expressed as a per-kWh rate. In regulated markets, this rate is set by the utility and approved by the state commission. In deregulated markets, you choose your own supply provider, and the supply rate becomes the competitive element of your bill.
Supply charges fluctuate more than delivery charges because they are tied to wholesale energy markets. Natural gas prices, nuclear plant availability, renewable energy generation, weather-driven demand spikes, and fuel costs all affect the supply rate. For example, when natural gas prices spiked in 2022–2023, supply charges in many regions doubled or tripled, even though delivery charges remained stable.
How Much of Your Bill Is Delivery vs. Supply?
The split between delivery and supply varies significantly by region and utility. Here are representative examples from major U.S. utilities based on 2025–2026 rate schedules:
| Utility / Region | Delivery (per kWh) | Supply (per kWh) | Delivery % of Total Energy Charges |
|---|---|---|---|
| Con Edison (NYC) | ~$0.11/kWh | ~$0.08/kWh | ~58% |
| PECO (Philadelphia) | ~$0.07/kWh | ~$0.07/kWh | ~50% |
| Commonwealth Edison (Chicago) | ~$0.04/kWh | ~$0.06/kWh | ~40% |
| Georgia Power (Atlanta) | ~$0.03/kWh | ~$0.05/kWh | ~38% |
| PG&E (California) | ~$0.08/kWh | ~$0.10/kWh | ~44% |
| FPL (Florida) | ~$0.04/kWh | ~$0.05/kWh | ~44% |
In some regions, delivery charges now exceed supply charges — a trend that has accelerated over the past decade. New York, Massachusetts, and Connecticut are notable examples where the delivery charge is the dominant portion of the bill. This is significant because delivery charges are non-negotiable, while supply charges can potentially be reduced through competition or energy efficiency.
Delivery Charges Broken Down
If you look closely at the delivery section of your bill, you will see multiple sub-charges. While the exact line items vary by utility, common delivery components include:
Transmission Charge: Covers the cost of moving electricity at high voltage from power plants to local substations. This is usually the smallest component, at $0.005–$0.015 per kWh.
Distribution Charge: Covers the local poles, wires, and transformers that deliver power to your home. This is typically the largest delivery component, at $0.02–$0.06 per kWh.
Customer Charge (or Basic Service Charge): A fixed monthly fee, typically $8–$20, for being connected to the grid.
Transition Charge: Found in deregulated states, this covers the utility’s remaining costs from stranded assets — power plants and long-term contracts that became uneconomic when retail competition was introduced. This is most common in states like Pennsylvania, Massachusetts, and Connecticut.
System Benefits Charge: Funds public-purpose programs like energy efficiency rebates, low-income assistance, and renewable energy development. This is typically $0.002–$0.01 per kWh.
Reliability or Capacity Charge: Covers the cost of maintaining reserve generation capacity to ensure grid reliability during peak demand. In regions with organized wholesale markets (PJM, ISO-NE, NYISO), this can be $0.01–$0.03 per kWh.
Supply Charges Broken Down
Supply charges are usually simpler, but in deregulated markets you might see multiple components:
Generation Charge: The base cost of the electricity you consumed, calculated at your per-kWh supply rate. In regulated markets, this reflects the utility’s actual generation costs or wholesale purchases.
Competitive Supplier Charge: In deregulated markets, this is the rate charged by your chosen retail electric provider. If you haven’t chosen a supplier, you receive the utility’s default “Standard Offer” or “Price to Compare” rate.
Renewable Energy Certificate (REC) Charge: Some plans include a surcharge for RECs to meet state renewable portfolio standards. This might add $0.005–$0.02 per kWh.
Power Factor or Reactive Power Charges: Rare for residential customers but sometimes applied to homes with large solar installations that export reactive power to the grid.
Regulated Markets: One Utility, Two Functions
In regulated states — places like Georgia, Florida, Alabama, and most of the Southeast — your utility handles both delivery and supply. You pay one bill to one company, but the charges are still broken out separately on your statement.
In these markets, you cannot shop for supply rates. The utility’s generation costs are built into the supply charge, which is reviewed and approved by the state commission during rate cases. If the utility over-earns on generation, the commission may order a refund. If costs exceed projections, the utility may file for a rate adjustment.
Deregulated Markets: Where You Can Shop for Supply
In deregulated states — Texas, Pennsylvania, Illinois, Ohio, New Jersey, Maryland, Connecticut, Massachusetts, and others — the supply function is separated from delivery. You still pay the local utility for delivery (their wires, their meter, their customer service), but you can choose a different company for supply.
This is where the delivery vs. supply distinction becomes practically important:
- Delivery: You pay your local utility’s approved rates. No shopping, no negotiation, no alternatives.
- Supply: You can choose from dozens of retail electric providers offering fixed-rate, variable-rate, green energy, and indexed plans.
When comparing supply plans, always look at the “Price to Compare” on your utility bill — this is the default supply rate you are paying right now. Any competitive plan should beat this rate, after accounting for fees, to be worth switching.
In Texas, where the market is fully deregulated, the “Price to Compare” is typically the utility’s pass-through of wholesale costs plus a small administrative margin. Retail providers then offer rates that may be 10% to 30% lower during competitive periods, though during high-demand seasons (summer 2023, winter 2021), competitive rates can actually exceed the default.
Can You Reduce Your Delivery Charge?
Reducing delivery charges is difficult because they are largely fixed costs approved by regulators. However, there are a few approaches:
- Reduce consumption: Since most delivery charges include a per-kWh component, using less electricity directly reduces the variable portion of delivery charges.
- Time-of-use rate plans: Some utilities offer lower delivery rates during off-peak hours (typically 9 PM to 9 AM). Shifting usage to these hours can reduce your delivery costs by 15% to 30%.
- Demand response programs: Some utilities offer bill credits for reducing usage during peak demand events. These credits appear as reductions to your delivery charges.
- Challenge rate increases: When your utility files for a delivery rate increase, you can participate in the rate case process through your state PUC. Consumer advocacy organizations often lead these challenges.
- Solar and net metering: If you have rooftop solar, you generate power that does not need to be delivered, which reduces the variable delivery charge. However, many utilities have shifted to minimum delivery charges for solar customers.
Can You Reduce Your Supply Charge?
Supply charges offer more opportunities for savings:
- Shop for competitive rates: In deregulated markets, compare plans from multiple retail providers. Use your state’s official comparison website (like PowertoChoose.org in Texas or PA Power Switch in Pennsylvania) and read the Electricity Facts Label carefully.
- Lock in fixed rates: When wholesale energy prices are low, signing a 12- or 24-month fixed-rate plan can protect you from price spikes.
- Energy efficiency: Using less electricity reduces the supply charge dollar-for-dollar. LED bulbs, efficient appliances, and improved insulation all help.
- Solar generation: Producing your own power reduces the amount you need to buy from the supply market. In states with net metering, excess generation offsets your supply charges at the retail rate.
- Community solar: If rooftop solar is not an option, community solar subscriptions can provide supply charge savings of 5% to 15% in participating markets.
Delivery and Supply on Natural Gas Bills
Natural gas bills follow the same delivery vs. supply structure as electricity, though the terminology differs slightly:
- Delivery is often called “Distribution” and covers the local pipeline infrastructure.
- Supply may be called “Gas Cost Recovery” (GCR), “Cost of Gas” (COG), or “Procurement Charge.”
The split on natural gas bills tends to skew more toward supply than electricity, because natural gas is a commodity whose price fluctuates with market conditions. In winter 2022–2023, for example, some customers in the Midwest saw supply charges that were 200% to 300% higher than the previous winter due to global natural gas price spikes, while delivery charges remained flat.
Frequently Asked Questions
What is the difference between delivery and supply charges?
Delivery charges cover the infrastructure (wires, pipes, meters, substations) that transport energy to your home. Supply charges cover the actual cost of generating or purchasing the energy itself. Together, they make up the energy portion of your bill before taxes and fees.
Why is my delivery charge higher than my supply charge?
In some regions — particularly the Northeast — delivery charges exceed supply charges because of aging infrastructure requiring expensive upgrades, high population density distribution costs, and legacy costs from deregulation transition periods. Delivery charges are also rising faster than supply charges nationwide as utilities invest in grid modernization.
Can I switch my delivery provider?
No. The delivery function is a regulated monopoly. Only the company that owns the infrastructure serving your address can deliver energy to your home. In deregulated markets, you can only choose your supply provider.
Do solar panels reduce my delivery charge?
Solar panels primarily reduce your supply charge by offsetting purchased electricity. They may also reduce the variable per-kWh portion of your delivery charge. However, most utilities impose a minimum customer charge or minimum delivery charge that solar cannot eliminate.
Should I choose a fixed or variable supply rate?
Fixed rates provide price certainty and are usually recommended when wholesale energy prices are stable or trending upward. Variable rates can be cheaper during periods of falling prices but expose you to spikes. In 2026, with relatively stable natural gas prices, 12-month fixed-rate plans are generally the safest choice for budget-conscious consumers.
