For Texas homeowners comparing solar financing options in 2026, the conversation shifted permanently on December 31, 2025. The Residential Clean Energy Credit under Section 25D expired that day. Congress eliminated it through the One Big Beautiful Bill Act signed on July 4, 2025. Direct cash purchase and conventional solar loans now lose access to the 30% federal tax credit entirely.

What remains is the third-party ownership pathway: solar leases and solar Power Purchase Agreements. Both allow a commercial entity to install, own, and maintain the system while the homeowner pays for the benefits. Both qualify under Section 48E (the Commercial Clean Electricity Investment Credit), which preserves the 30% federal credit through at least 2027. The commercial owner claims the credit plus MACRS depreciation and prices those savings into a below-market rate passed to the homeowner.

But the two structures are not interchangeable. Billing mechanics, escalator behavior, resale flexibility, and long-term cost exposure differ in ways that become material over a 20- to 25-year contract. This guide compares them with verified 2026 Texas data and explains which structure typically saves DFW homeowners more.

Solar Lease vs Solar PPA: The Structural Difference

In a solar lease, the homeowner pays a fixed monthly payment for the right to use a solar system installed on the roof by a third-party owner. The payment is contractual and does not fluctuate with how much electricity the system produces in a given month. Lease payments typically include an annual escalator — most commonly between 1.99% and 2.99% — which compounds over the term.

In a solar PPA, the homeowner pays only for the electricity the system actually generates, priced at a fixed per-kilowatt-hour rate. If the system produces less in a cloudy month, the bill is lower. If production is higher during a sunny Texas summer, the bill reflects that. PPAs may include an annual escalator applied to the per-kWh rate, or they may be structured as flat-rate contracts with no escalator.

Both models preserve access to the 30% federal Investment Tax Credit through Section 48E, and both are compatible with the 2026 Oncor Solar Photovoltaic Standard Offer Program rebate of up to $9,000 when paired with qualifying battery storage. The difference is how risk, predictability, and long-term cost allocation are distributed between the homeowner and the financing company.

Billing Mechanics: How Each Structure Charges You

Solar Lease Billing

A lease bill is predictable and fixed. The monthly payment is set at contract signing and rises only by the contractual escalator. A homeowner signing a 20-year lease at $130/month with a 2.99% annual escalator pays $130/month in year one, approximately $168/month by year ten, and approximately $225/month by year twenty. The total payment over 20 years lands at roughly $41,500 regardless of actual system output.

If the system underproduces, the homeowner still owes the full monthly lease. Most leases include a production guarantee clause requiring the financing company to compensate if output falls below a specified threshold, but the homeowner must actively track and claim this — it is not automatic.

Solar PPA Billing

A PPA bill is variable but tied to value delivered. The rate is set at contract signing — typically 8¢ to 12¢ per kilowatt-hour in 2026 DFW Solar Energy Agreements, well below the 15.26¢/kWh Oncor all-in residential rate as of April 2026. If the system produces 1,200 kWh in July and 600 kWh in December, the homeowner pays for exactly those kilowatt-hours.

Because payment scales with production, the homeowner avoids paying for underperformance. The trade-off is that in high-production months, bills can exceed the "expected average" a lease would have charged. In Texas's climate, summer production typically outpaces lease-equivalent averages, but annualized totals usually favor the PPA structure.

Escalators: The Compound Interest of Solar Contracts

An escalator is the annual percentage increase applied to either the monthly lease payment or the PPA kWh rate. Over a 20- to 25-year contract, escalators are the single most consequential variable in the long-term cost comparison.

Modeling a 2.99% escalator over time

The critical comparison is always against the utility alternative. Oncor Electric Delivery residential rates averaged 15.26¢/kWh as of April 2026 and rose 4.4% year-over-year from 2025. If utility rates continue climbing at that pace, the utility rate reaches approximately 23¢/kWh by year ten and over 34¢/kWh by year twenty. Both solar structures remain well below utility pricing even with a 2.99% escalator — but the spread widens more dramatically under the PPA model because Texas production volume is typically high.

The flat-rate alternative

A growing share of 2026 Solar Energy Agreement contracts are flat-rate structures with no escalator. The initial rate is slightly higher than an escalating equivalent, but the locked rate becomes increasingly valuable as Oncor and CenterPoint Energy rates continue rising. For homeowners planning to stay in their home for 15 or more years, a flat-rate PPA often delivers the lowest total payments.

Section 48E and the Tax Credit Pass-Through Mechanism

Both solar leases and solar PPAs in 2026 rely on Section 48E — the Clean Electricity Investment Credit under the Internal Revenue Code — as the financial engine that preserves the 30% federal credit for residential solar. Understanding how the credit actually flows determines which structure captures more value for the homeowner.

Under Section 48E, a commercial entity that owns a clean electricity asset (including residential solar systems) qualifies for:

• Base Investment Tax Credit of 30% on system costs
• Bonus credit adders for domestic content compliance and energy community siting, potentially pushing the effective rate higher
• MACRS depreciation on a 5-year schedule, with 2026 bonus depreciation still applicable
• FEOC compliance requirement: at least 40% of project costs must come from non-Foreign-Entity-of-Concern sources, affecting which solar panels, inverters, and batteries qualify

When combined, these incentives can reduce the third-party owner's net system cost by more than 40%. That cost reduction is what makes the below-market rate offered to the homeowner financially viable. A reputable lease or PPA provider discloses how much of this tax value is priced into the homeowner's rate — a transparent disclosure of the "pass-through" percentage is one of the strongest indicators of contract quality.

The 5, 10, and 20-Year Outlook in Oncor Territory

5-year horizon

Within the first five years, payment differences between a lease and a PPA are typically modest in absolute dollars. The more important question in this window is transfer flexibility. Homeowners planning to sell within 5 years should prioritize contracts with clearly defined, low-friction transfer terms. Some 2026 PPAs now include an ownership transfer option at year 5 or 6 at nominal buyout cost, which can add measurable value to a home sale.

10-year horizon

By year ten, escalators compound meaningfully. For a typical DFW home consuming 14,000 kWh annually, cumulative PPA payments at a 9.5¢/kWh starting rate with 2.99% escalator total approximately $15,800 over ten years. An equivalent lease at $130/month with the same escalator totals approximately $17,900 — roughly $2,100 higher. The gap generally widens in favor of the PPA in high-consumption DFW homes.

20-year horizon

Over a full 20-year term, the structural difference becomes decisive. Cumulative PPA payments for the same consumption profile land at approximately $37,500. Cumulative lease payments reach approximately $41,500. The $4,000 difference represents approximately 11% lower lifetime cost under a PPA in typical Texas scenarios.

The comparison shifts in favor of a lease only under specific conditions: if the homeowner's annual consumption is significantly below system production (causing excess generation to be sold to the grid at low Oncor buyback rates), or if the homeowner highly values payment predictability over savings optimization.

Home Electrification, Battery Storage, and the Integrated 2026 Stack

A lease or PPA in 2026 is rarely installed as a standalone solar-only system. The Oncor rebate now requires battery storage of at least 5 kWh. The economics of Section 48E favor solar-plus-storage bundles. And the broader trajectory of home electrification — EV charging, heat pumps, induction cooking, electric water heating — makes integrated infrastructure the dominant installation pattern.

A typical 2026 DFW residential installation under either structure now includes:

• Solar panels (6–12 kW) using tier-1, FEOC-compliant Silfab panels, REC panels, or Qcells panels
• Battery storage — Tesla Powerwall 3 (13.5 kWh, LFP battery chemistry, 11.5 kW continuous) or Enphase IQ battery, delivering grid outage protection and enabling peak shaving on time-of-use rates
• SPAN Smart Panel for circuit-level load management, intelligent backup prioritization, and avoidance of costly service upgrades
• Tesla EV Level 2 charger (Universal Wall Connector) or bidirectional Tesla Cybertruck Powershare setup for vehicle-to-home backup

Both lease and PPA structures can include these components as part of the contract, with the financing company claiming Section 48E on the full bundle. Because battery storage, Tesla Powerwall 3 installations, and SPAN Smart Panel integration have higher incremental cost than solar panels alone, the tax credit pass-through delivers proportionally larger value on integrated stacks — another argument for structuring the project as solar-plus-storage rather than solar-only.

Ownership, Resale, and Exit Options

Do I own the system after the contract ends?

Under both lease and PPA structures, the financing company owns the system throughout the initial term. End-of-term options vary by contract and are one of the most important clauses to review before signing.

Most 2026 contracts offer three options at contract end:

• Purchase the system at fair market value or a predefined buyout amount
• Extend the contract at a renegotiated rate
• System removal at no cost to the homeowner

A growing number of 2026 PPA contracts now include an earlier ownership transfer option — typically at year 5 or 6, after the tax recapture period expires — at a nominal buyout price. This structure allows the homeowner to capture the tax credit benefits through lower rates in early years, then transition to full ownership without long-term contract obligations.

What happens when I sell my home?

Both leases and PPAs are designed to be transferable to a new buyer at home sale. Transfer typically requires the buyer to meet a standard credit qualification threshold. Some contracts allow the selling homeowner to buy out the system as part of the sale and include it in the transaction — a structure that often simplifies closing and eliminates buyer concerns about assuming a long-term contract.

When evaluating either structure, request sample transfer documentation before signing. Contracts with clear, straightforward transfer procedures add measurable value to the home at resale. Contracts with restrictive or ambiguous transfer clauses can create friction during negotiation.

How do I exit early?

Early termination options vary. Most contracts allow termination with a buyout payment calculated as the present value of remaining payments. A small number of leases include no-penalty exit clauses after a specified year. Review the sections titled "Termination," "Buyout," "Assignment," and "Default" before signing any agreement.

Why Is My Electric Bill Still High With Solar?

A common homeowner frustration after going solar in Oncor or CenterPoint Energy territory is seeing a utility bill that is reduced but not eliminated. Several structural reasons explain this pattern — and understanding them before signing protects against disappointed expectations.

• Minimum utility charges: Oncor and other Texas TDUs charge monthly delivery fees even when net grid consumption is zero. These base charges typically run $10–$25/month regardless of solar production.
• Seasonal production variation: Texas solar systems produce substantially more in summer than winter. A system sized to cover 100% of annual consumption may leave winter months with grid-purchased shortfalls.
• Increased household consumption: Many homeowners increase usage after installing solar — adding EV charging, running HVAC more aggressively, or installing new loads. The higher baseline can offset solar savings.
• Limited net metering compensation: Texas has no statewide mandatory net metering. Excess solar exported to the grid typically earns low buyback rates from participating Retail Electric Providers (REPs).
• System monitoring issues: Undiagnosed inverter failures, panel soiling, or shading changes can reduce production below design expectations.

The PPA structure offers a subtle advantage here: because the homeowner only pays for electricity actually produced, any production shortfall automatically reduces the PPA bill. Under a lease, the full fixed payment remains due regardless of production.

The 120% Rule and What It Means for Your Installation

The 120% rule refers to a provision in the National Electrical Code (NEC) that limits how much solar backfeed can be connected to a residential electrical panel. Specifically, the sum of the main breaker rating plus the solar backfeed breaker rating cannot exceed 120% of the panel's busbar rating. For a standard 200-amp main panel, this caps the maximum solar breaker at 40 amps — limiting solar system sizing on that panel without additional engineering.

In practical terms, homeowners planning larger solar systems may need:

• Main panel upgrade to higher amperage service
• Line-side tap installation that bypasses the busbar calculation
• SPAN Smart Panel integration, which uses intelligent load management to avoid the need for a service upgrade
• Sub-panel reconfiguration to redistribute the solar connection

All NEC compliance work is handled by a licensed Texas electrical contractor. Destined Energy operates under TECL #38062, issued by the Texas Department of Licensing and Regulation (TDLR), and every installation passes city inspection under strict code adherence.

Which Structure Saves More for DFW Homeowners?

For most DFW homeowners in 2026, the Solar Energy Agreement (PPA) structure delivers more long-term savings than a traditional solar lease. The reasoning is structural, not promotional:

1. Texas production volume is reliably high. PPAs convert high solar production into proportional savings. Leases do not.
2. Flat-rate PPA options have expanded. Removing the escalator compounds savings dramatically over a 20-year term.
3. Early ownership transfer options in newer 2026 PPA contracts allow homeowners to capture tax credit benefits, then take ownership without long-term contract exposure.
4. Production risk allocation favors the homeowner under a PPA, protecting against equipment underperformance or inverter failure.
5. Integration with Tesla Powerwall 3, SPAN Smart Panel, and Tesla EV Level 2 charger is increasingly bundled into PPA contracts, maximizing Section 48E value on the full installation.

Solar leases remain a valid structure for homeowners who place premium value on payment predictability and who prefer a fixed monthly budget line regardless of seasonal production fluctuation. For homeowners prioritizing absolute savings maximization, the PPA / Solar Energy Agreement is typically the stronger choice in 2026 Texas market conditions.

The best analysis is a scenario model run against your actual 12-month Oncor usage data, your exact roof orientation and shading profile, and the specific escalator and buyout terms being offered by each provider. That is the comparison Destined Energy builds during every consultation — with no obligation, no pressure, and full disclosure of how each structure would perform over the contract term.