1. Screen the property
Enter one Texas commercial address to see a preliminary roof layout, system size, production range, and confidence before sharing contact details.
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Use the free estimator for a preliminary layout, or share your preferred response method with the commercial team. Final feasibility still requires site, utility, and engineering review.
Plan roof, ground-mount, or carport solar from the property's real load, utility tariff, site constraints, and current program rules. In Texas, NuWatt's in-house engineers design and install the project — a direct EPC, not a lead reseller.
Electricity value
Utility-specific
Rate class + interval load
Installed cost
Quote-specific
No statewide $/W inserted
Production
Site-specific
Geometry + shading model
Program facts
Source-dated
Official sources linked
Texas commercial quote path
NuWatt's commercial estimator can return a preliminary roof layout, system size, annual production range, and confidence grade from one Texasproperty address before contact details. A final EPC quote still requires the facility's load, tariff, site and engineering scope, interconnection review, and confirmed program and financing eligibility.
Enter one Texas commercial address to see a preliminary roof layout, system size, production range, and confidence before sharing contact details.
Analyze the propertyConfirm utility or REP territory, rate class, interval demand, export or buyback terms, interconnection path, roof and hail constraints, and whether storage changes the facility economics.
Review TX tariffs and economicsUse site-specific production and a real EPC price to compare cash, debt, C-PACE where available, and PPA structures without substituting statewide averages.
Compare financingCheck scope, production assumptions, incentives, exclusions, warranties, and financing terms before treating any proposal as decision-ready.
Check a proposalStart with NuWatt’s address-based commercial estimator to see preliminary roof capacity, system size, production, and confidence before sharing contact details. A final Texas EPC quote then requires the utility or REP territory, rate class and interval demand, export or buyback terms, structural and electrical scope, interconnection review, and confirmed financing and tax eligibility.
The Texas decision brief
The wires utility, electricity seller, and export contract are separate decisions.
In Oncor territory, interconnection and metering are not the same as a retail electric provider’s buyback offer. Obtain both sets of terms before valuing exports.
Austin Energy has its own commercial solar offerings. Do not extend those terms to Oncor, CenterPoint, another municipal utility, or a cooperative.
Use the facility’s interval load, applicable tariff, and written export terms. A retail energy price is not automatically the payment for every exported kWh.
The Section 48E begin-construction window closed July 4, 2026: projects that began construction on or before that date may use the longer continuity pathway. Commercial solar projects starting now generally must be placed in service by December 31, 2027. The statutory credit is 6%; it can increase to 30% when the applicable prevailing-wage and registered-apprenticeship requirements are met. Commercial tax credit guide →
IRS Notice 2025-42 · verified 2026-08-06The value comes from the facility's real load, tariff, site, and tax position—not a generic statewide payback.
Generating power on-site turns a variable grid charge into a fixed project cost you can model for the life of the system in Texas.
Model the 6% statutory Section 48E credit, the increase to 30% when PWA rules are met, and 100% first-year bonus depreciation only when your tax team confirms eligibility.
Lower electricity spend flows straight to operating income — a durable line-item reduction, not a one-time rebate.
On-site clean generation supports emissions targets and the sustainability requirements tenants, investors, and municipalities increasingly ask for.
Program decision layer
Official program facts are separated from customer inputs and modeled results so a planning number cannot be mistaken for an approved incentive or a measured outcome.
Start with the serving utility, rate class, 12 months of usage, interval demand where available, and an engineer-reviewed site design. Statewide rate averages and generic payback claims are intentionally absent. State and utility programs are added only after current eligibility is confirmed for this address and system.
Official program fact
Government or utility source, linked and date-verified.
Customer input
Your bill, rate class, interval data, quote, and tax assumptions.
Site model
Roof or land geometry, production, shading, and interconnection review.
Verified outcome
Only measured project results are called outcomes; examples stay labeled as models.
Compare like with like
| Arrangement | Where the value comes from | Records to compare | Mistake to avoid |
|---|---|---|---|
| Competitive retail service | Import charges and export compensation follow the selected REP contract; TDU delivery charges remain distinct. | REP agreement, TDU class, riders, export cap/fees, interval load and contract renewal date. | Valuing exports at the all-in import rate or extending one REP offer over the entire project life. |
| Municipal utility or cooperative | The local utility’s own rules determine compensation and program access. | Account-specific tariff, interconnection agreement and written solar program terms. | Applying an Austin Energy offer to an Oncor, CenterPoint or cooperative customer. |
| Demand, ratchets and 4CP | Model the specific charge’s billing determinant from interval data. | Historical peaks, billing ratchet, load factor and any documented 4CP pass-through in the contract. | Calling a lower midday peak a reduction in every demand charge or a guaranteed 4CP saving. |
Reprice actual intervals under the import/export contract. Add only proven demand-charge changes. End any quoted export compensation at its contract expiration rather than assuming a 25-year retail offer.
Test no export revenue after contract renewal, the applicable demand-ratchet floor and a lower daytime self-use share.
Program references—not an award or tariff determination: Oncor · Renewables and interconnection · Austin Energy · Solar for business
One in-house engineering and install team, from first analysis through commissioning.
We model your building's real usage, roof, and Texas utility tariff, then engineer a system sized to your load and budget.
Our licensed crews handle permitting, interconnection, and installation, then commission and inspect the system so it powers up to spec.
At handoff your team gets production visibility through the manufacturer portal (Enphase or SolarEdge), backed by our workmanship warranty and support line.
Oncor
CenterPoint Energy
AEP Texas
CPS Energy
Austin Energy
Project economics
Bring the installed-cost quote, site-specific production, utility-specific energy value, operating cost, financing terms, and confirmed tax assumptions. This state guide does not insert its own cost or payback model.
Secondary Service Greater Than 10 kW · One monthly charge, not the whole bill
Start with a specific bill line. These illustrative demand inputs are not an actual installation or a forecast. Reducing energy use in kWh does not prove a reduction in billing demand in kW.
Monthly 15-minute peak demand. Non-seasonal-agricultural account with annual load factor at least 26%, held constant in both scenarios. An 80% historical-demand floor applies when the prior 11-month peak exceeds 20 kW.
With the default 250 kW historical peak, the 200 kW billing floor remains even if this month’s peak falls to 180 kW. Change the historical input to see when that floor stops controlling this charge.
Export payments, state incentives, tax benefits, project cost and operating expenses are not calculated here. No payback or annual savings is inferred.
Read the official Oncor rate document. Sheet 1.3, pages 1–3; effective June 1, 2026. Source checked September 5, 2026.
Retail supplier energy, customer/metering charges, all tariff riders, taxes and export compensation are excluded. Other load-factor bands need a different calculation. Do not apply this example to another utility or schedule.
Your numbers · one shared calculation engine
Keep the EPC cash price, usable electricity value and dated benefits separate. Nothing below is prefilled with a state rate, invented installation price or assumed tax credit. Results stay on this device; this worksheet does not upload your bill or create an inquiry.
For this state: Reprice actual intervals under the import/export contract. Add only proven demand-charge changes. End any quoted export compensation at its contract expiration rather than assuming a 25-year retail offer.
Start with the building
These are planning scenarios, not claims about completed installations. Use the questions to make your site assessment and installer proposals more specific.
How do cooling and process loads align with generation, and which demand charges remain?
Can the design preserve customer parking and account for canopy foundations and service upgrades?
Is service through a retail market, municipal utility, or cooperative, and which organization controls the account?
The investment decision
Compare proposals on the same scope. Keep cash price, conditional benefits, and annual operating value separate so an attractive headline does not hide a missing cost.
| Decision input | Evidence to request | Check before relying on it |
|---|---|---|
| Installed project cost | An itemized EPC proposal | Roof work, switchgear, interconnection, and exclusions |
| Electricity bill value | Utility tariff + interval load | Self-consumed generation, exports, and remaining demand charges |
| Program compensation | Applicable rules + project award | Eligibility, permitted combinations, term, and payment timing |
| Tax or financing benefit | Project-specific professional review | Ownership, usable benefits, financing fees, and payment schedule |
| Long-term cash flow | A dated, transparent financial model | O&M, replacements, insurance, degradation, and financing |
Screen the site first. Final pricing, program eligibility, and savings still require verification.
Utility, tariff, site, and current program rules verified for the property before economics are modeled.
Utility, tariff, site, and current program rules verified for the property before economics are modeled.
Utility, tariff, site, and current program rules verified for the property before economics are modeled.
You can get an immediate preliminary Texas site screen from one property address, including estimated roof capacity, system size, annual production range, and confidence. A final EPC quote is not a generic instant price: it requires utility and load data, site and engineering scope, interconnection requirements, and verified program, financing, and tax eligibility.
Site-specific pricing with exact incentive calculations. No obligation.