Choosing an Electricity Supplier for a New Home Build (2026)

You’re closing on a new home build in a deregulated state. Between the appliance package, smart thermostat choices, and EV charger pre-wiring, electricity decisions pile up fast. One often-overlooked choice carries surprisingly long-term consequences: which electricity supplier you sign up with on day one. Pick wrong and you’ll be on a bad rate for 12 or 24 months. Pick right and you’ll lock in costs, get loyalty perks, and align the supplier with the heating and EV decisions you’re about to make.

This guide walks through how to choose an electricity supplier specifically for a new home build — what’s different from picking a supplier for an existing home, and how to time the decision properly.

Why New-Build Customers Have More Options Than Existing Homes

When you move into an existing home, you inherit whatever supplier the prior occupants had (or the utility’s default rate if no choice was made). New construction starts from scratch. Your builder typically initiates utility service in their name during construction, and you transfer the account at closing — at which point you have a clean opportunity to shop suppliers without contract overlap, early-termination fees, or transfer headaches.

That clean slate is valuable. Use it.

Step 1: Confirm You’re in a Deregulated Market

The first question: does your new home’s address actually allow supplier choice? Deregulated electricity markets exist in some or all of Texas, Illinois, Pennsylvania, New York, Ohio, New Jersey, Massachusetts, Connecticut, Maryland, Maine, New Hampshire, Rhode Island, DC, Delaware, Michigan (limited), and Virginia (limited).

Within deregulated states, some areas are exempt — municipal utilities and rural electric cooperatives generally don’t offer supplier choice. Check directly with the territory utility (Oncor, ComEd, PECO, Con Edison, etc.) for your specific address.

Step 2: Estimate Your New Home’s Electricity Profile

The right supplier depends on how much electricity you’ll use and when. Three factors matter most for a new build:

Heating System

An all-electric home (heat pump for heating and cooling, electric water heater, electric range) will use 12,000 to 25,000 kWh per year — roughly double a gas-heated home of similar size. At higher consumption, even small per-kWh rate differences compound quickly. A 1 cent/kWh saving × 18,000 kWh = $180/year.

EV Charging

One EV adds 3,000 to 6,000 kWh per year of new load. Two EVs can double household consumption. Critically, EV charging is flexible — you can shift it to off-peak hours — which makes time-of-use rate plans dramatically more valuable for EV households.

Solar

If you’ve spec’d rooftop solar (or planned for it), your grid imports will be much smaller than your raw consumption. That changes the supplier math — fixed monthly fees become a bigger fraction of your bill. Look for plans with low or no fixed charges.

Step 3: Match Plan Type to Your Profile

The three main residential plan types serve different needs:

Plan Type	Best For	Watch Out For
Fixed Rate (12–36 mo)	Most new-build homeowners; predictable budget	Tiered pricing that punishes high or low usage
Time-of-Use (TOU)	EV households; flexible-load homes	High peak rates if you can’t shift load
Free Nights / Weekends	Heavy off-peak users (EVs, work-from-home)	Inflated on-peak rates to compensate
100% Renewable Fixed	Environmentally-motivated buyers	Premium of 0.5–2 cents/kWh; verify REC sourcing
Variable Rate	Almost no new-build buyers	Price spike exposure; rarely worth the risk

For most new-build buyers, a 24- to 36-month fixed rate is the right starting point. It locks in your energy cost while you’re absorbing the carrying costs of a new home and figuring out actual usage patterns.

Step 4: Read the Electricity Facts Label (EFL) Carefully

Every retail plan in Texas (and equivalent disclosure documents in other deregulated states) comes with an EFL. New-build buyers should focus on these specific entries:

• Average rate at 500, 1,000, and 2,000 kWh. Suppliers love to advertise the cheapest tier. A plan that’s 9 cents at 1,000 kWh and 14 cents at 500 kWh will burn you in shoulder months when your usage drops.
• Fixed monthly charges. “Base charges” of $9.95 or “minimum usage fees” can make a $0.10/kWh plan more expensive than a $0.12/kWh plan at low usage.
• Cancellation fees. Early-termination fees typically range from $150 to $300. Higher fees suggest the supplier is concerned about losing you mid-contract.
• Renewal language. Some plans auto-renew to month-to-month variable rates at much higher prices. Calendar the end date and shop again before it triggers.

Step 5: Time the Sign-Up to the Right Moment

Three timing rules matter for new builds:

Sign Up Before Closing — Not After

Many suppliers can lock a rate the day you sign, with service starting on a specified date. If you wait until closing day, the rate you saw last week may have changed. Once you’ve decided on a plan, sign immediately and provide the closing date as the start date.

Watch Seasonal Pricing Cycles

Wholesale electricity prices and retail rates are typically lowest in late spring (April–May) and fall (October–November) when neither heating nor cooling is at peak demand. If your closing date is flexible — or if you’re moving into temporary housing first — try to sign your supplier contract during these shoulder seasons. The same 24-month fixed rate signed in May might be 1–2 cents/kWh cheaper than the same plan signed in August.

Sync Contract End Dates to Future Decisions

If you’re planning to add solar in year 2 of homeownership, a 12-month contract may serve you better than a 36-month deal. You’ll want flexibility to switch to a solar-friendly plan (with bill credits, REC settlement, etc.) once panels go live. Match contract length to your planning horizon.

Step 6: Set Up Auto-Pay and Monitoring

Once you’ve enrolled, two operational steps protect your savings:

1. Enroll in your utility’s online portal (separate from your supplier). The utility provides interval meter data showing hourly usage. You’ll need this if you ever consider a TOU plan, solar, or demand response.
2. Calendar your renewal date. Set a reminder 60 days before your fixed-rate term ends. Shop the market then. Suppliers count on you sleeping through the auto-renewal, which is when prices typically jump.

Common Mistakes to Avoid

1. Letting the Builder Pick Your Supplier

Builders sometimes have relationships with specific suppliers (sometimes including referral fees). The plan that’s convenient for the builder isn’t necessarily the cheapest or most appropriate for you. Always shop independently.

2. Signing Based on the Teaser Tier Only

“As low as 8.9 cents per kWh” usually requires using exactly 1,500 kWh in a month. Use 1,200? Different price. Use 1,800? Different price. The teaser tier almost never matches your actual usage. Calculate cost at 500, 1,000, and 2,000 kWh and compare.

3. Picking a Pure Variable Plan to “See How It Goes”

Variable rates can spike during heat waves or cold snaps — exactly the times your usage is also at its peak. The combination is brutal. A 24-month fixed rate carries a small premium in calm markets and pays for itself in volatile ones.

4. Ignoring the Supplier’s Financial Backing

Small or new retailers occasionally fail, which can trigger emergency rollover to default service at higher rates. Look for suppliers with established parent companies (Constellation, NRG/Reliant, Vistra Energy, Direct Energy, Just Energy). The premium is small; the peace of mind is real.

Frequently Asked Questions

Can I sign up before construction is complete?

Yes. Most suppliers will lock a rate and schedule the start date for closing or move-in. You’ll need the property address and your closing date.

What happens if my closing is delayed?

Call the supplier to push the start date. Most are flexible with reasonable notice. A few may extend the rate guarantee period; some will require requoting if the delay is significant (60+ days).

Do I need to coordinate with my utility separately?

Yes. Your distribution utility (the wires-and-poles company) needs to know you’re the new owner so they can transfer service. Your supplier handles the generation portion. In most states the supplier enrollment automatically signals the utility, but always confirm with both.

Should I avoid plans with high fixed monthly fees?

If you’ll have solar, yes — fixed fees become a huge fraction of your bill if you’re a low net-importer. If you have a large all-electric home with no solar, the fixed fee is a small fraction of your bill and can be ignored.

Does the supplier affect outage response or service?

No. Outage response, line maintenance, meter installation, and emergency service all come from the distribution utility, regardless of which competitive supplier you choose. The supplier only sets the generation rate and bills accordingly.

Bottom Line

For a new home build, the right electricity supplier choice is usually a 24- to 36-month fixed rate from a financially solid supplier, sized to your actual usage profile, with renewal date calendared. Spend 30 minutes shopping the market before closing and you’ll save $200 to $1,500 over the contract term — money that’s much better in your pocket than in a supplier’s marketing budget.