Restaurant Electricity in Texas: Why Kitchens Get Punished on Demand
Restaurant electricity bills run high because kitchens combine constant refrigeration load with sharp lunch and dinner demand spikes. Texas commercial contracts bill demand on the highest 15-minute interval of the month, so a short rush can drive a meaningful share of the entire bill. Fixed-rate contracts and demand-aware planning control it.
For example, say a 20,000 kWh/month restaurant account in Houston has a supply contract priced at 10 cents/kWh. Example numbers to show the math, not a live quote. The energy charge alone would run about $2,000 a month. Demand charges are added on top of that, and a full-service kitchen's constant refrigeration plus its lunch-rush spike make it a strong candidate for a meaningful demand charge on the bill. The exact dollar impact depends on your account's demand structure and TDU, so it's worth asking your broker to model it against your own interval data. The fryers, flat-top, exhaust hoods, and walk-in cooler all pulling power at 12:15pm on a Tuesday are a big part of why.
The Lunch Rush Problem: How Demand Charges Actually Work
A demand charge doesn't care what you used all month. It cares about the single highest 15-minute interval your meter recorded during the billing cycle. Every commercial account on a Texas TDU, Oncor, CenterPoint, AEP Texas, or TNMP, is metered this way, and that one 15-minute window sets a charge that applies to the entire 30-day cycle.
For a restaurant, that window is almost always the lunch rush. Fryers firing, the flat-top at full heat, exhaust hoods running wide open, HVAC fighting the kitchen's own heat load, walk-in doors opening every 90 seconds, and the espresso machine pulling its own draw, all at the same time, between 11:30am and 1:30pm. That 20-minute stretch can set your demand charge for a month where the kitchen was otherwise quiet the other 29 days.
Refrigeration Never Clocks Out
Offices drop to near zero overnight and on weekends. Restaurants don't. Walk-in coolers, walk-in freezers, and ice machines run 24 hours a day, 365 days a year, whether you're open or closed. That constant base load means a restaurant never really gets a break on its meter, and it's a big part of why a restaurant's average usage sits much closer to its peak usage than a typical office.
This shows up as something brokers call load factor, the ratio between your average draw and your peak draw. A quick-service concept slammed only at lunch has a worse load factor than a full-service restaurant that spreads breakfast, lunch, and dinner traffic evenly. Two restaurants using the identical number of kWh in a month can land on very different demand charges depending on how concentrated that usage is. For a deeper breakdown of usage patterns by restaurant concept, Voltcheckr's restaurant industry guide walks through the ranges by service type.
- Walk-in coolers and freezers pulling power 24/7, 365 days a year, regardless of dining room traffic
- Fryers, flat-tops, ovens, and exhaust hoods all firing at once during the 11:30am-1:30pm and 6-8pm rush windows
- HVAC fighting kitchen heat gain on top of standard Texas summer cooling loads
- Ice machines cycling on their own schedule, not on customer demand
- Weekend and holiday spikes that land exactly when office buildings next door go quiet
Contract Features That Matter for Food Service
We recommend a fixed-rate contract for every Texas restaurant, full stop. Here's why it matters more for food service than for a typical office: ERCOT's highest-priced hours cluster in the June through September window, the same months that drive the four coincident peaks (4CP) used to set transmission cost allocation for larger metered accounts the following year. That's also peak patio season and peak lunch-rush AC load for most Texas kitchens. Stack a variable or index-priced contract on top of that, and a restaurant is exposed on exactly the days it can least afford it. A fixed rate locked for the term removes that exposure entirely.
- A fixed energy rate for the full contract term, not an index or variable rate tied to ERCOT spot pricing
- A demand charge structure you can see and calculate in advance, not a vague per-kW clause billed however the TDU passes it through
- Contract length matched to your lease term, so a shorter energy contract, for example 24 to 36 months, avoids stacking a renewal deadline on top of a lease negotiation
- Multi-location bundling if you operate more than one Texas restaurant. A broker can put separate ESI IDs from Houston, Dallas, and Fort Worth locations into one competitive bid instead of three separate contracts
- A renewal reminder built into your contract management. Restaurants that miss the renewal window get rolled onto expensive month-to-month rates automatically
Restaurant owners who let a fixed contract expire without renewing get dropped onto a month-to-month rate that floats with ERCOT spot prices. Since your kitchen's peak demand already lands during summer, a rollover in June, July, or August is an especially costly mistake to make.
Before you sign anything, ask your broker to pull your interval data, the 15-minute usage report your TDU already keeps on file. It shows exactly when your peak hit last summer. A restaurant that shifts prep and baking earlier in the morning, instead of running ovens hot straight through the lunch rush, can shave real dollars off next year's demand charge without touching the menu.
Restaurant electricity bills are priced on your load profile, not just your usage. Get a competitive quote built around your kitchen's actual demand pattern.
Get My QuoteFrequently asked questions
Kitchens combine 24/7 refrigeration load with sharp lunch and dinner demand spikes. Texas commercial contracts price demand on the single highest 15-minute interval of the billing cycle, not average usage, so a busy 20-minute rush can set a large chunk of the whole month's bill.
A demand charge bills the highest 15-minute kW interval recorded during the billing cycle, separate from the per-kWh energy charge. Restaurant kitchens, with constant refrigeration and a sharp lunch-rush spike, are especially exposed to it because that one interval can drive charges well beyond what average usage alone would suggest.
Fixed-rate, in almost every case. A restaurant's peak demand tends to land in the summer, the same months when ERCOT spot prices run hottest. A fixed contract locks in the energy rate so a volatile grid day doesn't turn into a volatile month on your P&L.
Yes, as long as the locations sit in deregulated TDU territory (Oncor, CenterPoint, AEP Texas, or TNMP). A broker can bundle separate ESI IDs from locations across Houston, Dallas, and Fort Worth into a single competitive bid, which is standard practice for multi-unit restaurant groups.
No. Austin Energy and CPS Energy are city-owned municipal utilities, so restaurants inside those city limits buy on fixed municipal commercial rates and can't shop a retail supplier. A restaurant group with locations in Houston, Dallas, or other deregulated ERCOT territory can still shop those other accounts.