If you build or own commercial facilities in Texas, you may have considered the thought: integrate solar during construction. But here’s the reality -the vast majority of commercial solar installations in Texas are retrofits, added to buildings that have already been issued their certificate of occupancy -maybe recently, or maybe years ago.

That’s not because developers are broadly uninformed. It’s because commercial real estate has financial and operational dynamics that shape when and if solar makes sense in a building’s lifecycle -dynamics that developers, CGs (and even many other solar installation firms) either don’t understand or choose to ignore. Understanding those dynamics up front is exactly the type of consideration that separates the most efficient and elegant construction plans from the others.

We’re going to walk through the real considerations that drive timing decisions, when early integration delivers the most value, and what every new commercial project in Texas should be doing at a minimum -even if solar panels aren’t part of the immediate plan.

What Drives the Timing Decision for Commercial Solar

In residential new construction, the solar timing is relatively simple. One decision-maker (the homeowner or builder), one building, one utility meter. Pre-wiring during framing and “rough-in” often outweighs the costs of waiting until the structure is completely finished to add the solar infrastructure and active components. The builder and property owner gets a “solar-ready home.” Everyone’s happy.

Commercial construction is a bit of a different animal. The timing question is shaped by several factors that are unique to how commercial projects are financed, built, and operated:

The Split Incentive Question

This is often the first conversation. In the most common commercial lease structure -the triple-net (NNN) lease- the building owner pays for capital improvements, but the tenant pays the utility bills. So if you’re a developer putting up a speculative office building or warehouse, you’d be writing the check for a solar system… and your tenant would pocket the energy savings.

That math doesn’t work for many property owners without some creative structuring. And it’s not a fringe concern. Industry surveys have found that a majority of commercial property owners identify this split incentive as the primary reason they defer energy upgrades. The building owner bears the cost; the tenant gets the benefit. Solutions exist (green lease structures, C-PACE financing, direct ownership models), but they require early planning -and they don’t fit every project.  (Why does everything in life have to be so dang complicated…amiright?)

Value Engineering Pressure

Most commercial building contracts are won by the lowest bid. When a general contractor is running up against budget (and they almost always are) sustainability features are typically the first line items to get cut. Solar, EV charging, high-efficiency HVAC upgrades: these are “nice to haves” are often seen as amenities that get sacrificed to protect the project completion (ie Certificate of Occupancy) timeline and the core scope of work.

Even when a developer wants solar in the original design, it often gets value-engineered out before the foundation is poured. That’s not a failure of intent -it’s just a reality of how commercial construction gets delivered.

The Load Profile Isn’t Known Yet

Here’s one that doesn’t get discussed enough: during construction of a speculative commercial building, you often have no idea who will occupy it. And you can’t properly size a solar + storage system without knowing the building’s load profile. A cold-storage warehouse tenant running refrigeration 24/7 has completely different energy needs than a flex-office user. A manufacturing facility drawing heavy three-phase loads usually looks nothing like a medical office in this context.

So developers defer the decision. “We’ll figure out solar once the tenants are signed and the load profile is clear.” That’s often a reasonable call. But it also means the building gets designed and built without any provisions for solar, making the eventual installation more expensive and disruptive than it needs to be. (More on how to solve that in a minute.)

The Timeline Mismatch

Commercial leases typically run 3 to 10 years. Solar systems are engineered for 25 to 30 years. When the person paying for the system might vacate in five years, the payback math gets uncomfortable. This temporal mismatch compounds the variables to be considered for the split-incentive question -and makes it harder to justify the upfront investment during the construction phase. At least this is usually the case in multi-tenant scenarios.

When It Does Make Sense: Owner-Occupied and Code-Driven Projects

All of the barriers above share a common thread: they exist because of the landlord-tenant divide. Remove that divide, and the calculus changes entirely.

Owner-occupied facilities are the exception to every barrier we just listed. The building owner IS the energy consumer. There’s no split incentive. The load profile is known (or at least predictable). The time horizon is long-term. And the capital investment in solar directly reduces the owner’s own operating costs for decades.

This includes the exact types of projects NATiVE gets involved with every year: manufacturing plants, healthcare facilities, municipal buildings, institutional campuses, retail-owned properties, and mission-critical operations centers. If you own the building and pay the electric bill, integrating solar during construction is one of the safest net-ROI decisions you can make.

The Code Is Catching Up

There’s another force pushing solar into new commercial construction, and it’s regulatory.

The 2024 International Energy Conservation Code (IECC), Section C405.15, now includes a mandatory on-site renewable energy requirement for new commercial buildings. The prescriptive path calls for on-site generation capacity of at least 0.75 watts per square foot of gross conditioned floor area. If on-site generation isn’t feasible, the code provides pathways for off-site renewable energy procurement — but the default expectation is solar on the roof.

This isn’t hypothetical. Texas cities are already adopting these provisions:

• Austin adopted the 2024 IECC commercial provisions effective July 10, 2025, including the renewable energy and energy storage appendices.
• McKinney has adopted the 2024 IECC, with city documentation specifically referencing solar-ready provisions and the renewable energy requirements.
• At the state level, SB 783 (passed in 2025) directed the State Energy Conservation Office (SECO) to consider the 2024 IECC for adoption as the Texas state minimum energy code. That process is currently underway.

The 2024 IECC also requires that construction documents include designated areas for future energy storage systems and the routing of cables and raceways for future on-site renewable energy (Section C105.2). Buildings over 5,000 square feet must achieve renewable and load management credits under the expanded C406 point system.

If you’re building a new commercial facility in Austin, McKinney, or any jurisdiction that adopts the 2024 IECC  -the full list of municipalities is larger and growing- renewable energy provisions are no longer optional. They’re part of your code compliance checklist.

The Minimum: Spec the Electrical Switchgear, Even If You Skip the Panels

OK. So maybe you’re a speculative developer. You don’t know who the tenant will be. The lease structure doesn’t justify a full solar installation during construction. We get it.

But here’s what our operations and engineering team will tell you: at a minimum, every new commercial project falling under the new code provisions should include the PV (photovoltaic solar array) system disconnect (we call it “switchgear”) in the primary electrical / MEP design.

Why? Because adding the basic solar switchgear to the project’s stamped electrical scope removes the need to have the utility company SHUT OFF THE SITE’S POWER CONNECTION upon eventual completion of the solar system. It also helps ensure that the building’s physical footprint can be elegantly adapted for this before construction scope is locked-in.

We get it.  This can feel like a real risk to your project’s certificate of occupancy (CoO) timeline. GCs feel this acutely. Anything that touches the primary electrical infrastructure after the main panel is set is a change order, a potential re-inspection trigger, and a schedule risk. Nobody wants to explain to the ownership group why the CO got pushed because of a solar disconnect that should have been in the original spec.

So here’s the thing : The marginal engineering/cost/human effort of including PV-ready switchgear during primary construction is low.  The cost and inconvenience of retrofitting it later is disproportionately high.

While you’re at it, consider also including:

• Conduit runs from the electrical room to the roof or a designated ground-mount area
• Panel capacity in the main distribution board to accommodate future solar and storage circuits
• Structural provisions for rooftop or carport-mounted arrays (roof load design, mounting points)

This is the “solar-ready” minimum. And increasingly, it’s not just a smart move -it’s a code requirement in jurisdictions adopting the 2024 IECC.

Think of it like rough-plumbing a bathroom in a basement. You may not finish it today, but running the drain lines while the slab and walls are open costs almost nothing compared to jackhammering the concrete or knocking through drywall later.

What Changes When Solar Is Engineered In From Day One

For owner-occupied projects where integration does make sense, the advantages are significant:

Structural engineering happens once, not twice. Roof load calculations account for solar panels alongside HVAC units, skylights, and other equipment. Panel placement is optimized from the start — not crammed into whatever space is left after everything else is installed.

Electrical infrastructure is designed holistically. The main service panel, switchgear, metering, and conduit are all sized and routed for solar + storage from the beginning. No expensive panel upgrades, no re-engineering of the electrical room, no surprises during interconnection.

Permitting runs in parallel. The utility interconnection application can be submitted alongside building permits rather than as a separate, sequential process that adds months to the timeline after the building is occupied.

Design integration matters for facilities where appearance counts. Retail, healthcare, civic, and mixed-use buildings benefit from solar that’s architecturally integrated — not visibly bolted on as an afterthought.

And for the Texas ERCOT market specifically: systems should be designed for self-consumption and demand charge mitigation, not grid export. There’s no guaranteed net metering (1:1 solar export credits) in most of Texas. That -and other factors- fundamentally shape how commercial solar + storage systems are sized and operated.

The Incentive Timing Layer: Why 2026 Matters

We’d be remiss not to mention the federal incentive picture, because for projects currently in design or early construction, the timing is directly relevant.

The commercial Investment Tax Credit (Section 48E) remains at 30% (up to 40%) for eligible projects that begin construction before July 4, 2026. Projects starting after that date face a hard December 31, 2027 placed-in-service deadline -meaning you’d need to go from groundbreaking to energized system in roughly 18 months, which may be super tight (or impossible) for many commercial installations.

Safe harbor rules have also tightened. Under the OBBBA and IRS Notice 2025-42, the Physical Work Test is now the primary method for establishing beginning of construction for solar systems over 1.5 MW. The old 5% cost safe harbor is still available for smaller commercial systems, but the documentation and compliance requirements have increased.

New Foreign Entity of Concern (FEOC) sourcing restrictions also apply to projects beginning construction in 2026, adding a supply-chain compliance layer that affects equipment procurement decisions.

The point here isn’t to create urgency for urgency’s sake. Seriously. It’s that for owner-occupied projects already in the design phase, the incentive calendar aligns well with integrating solar into the build. Waiting means potentially leaving significant value on the table.

What NATiVE Brings to New Construction Projects

NATiVE Solar has been operating in Texas since 2007. We’re a commercial-first EPC  -meaning we approach every project as a systems consulting and engineering challenge, not a commodity solar installation. Our team has deep experience coordinating with general contractors, ECs, architects, and structural and electrical engineers during both the design abnd construction phases of new builds. NATiVE Solar delivers commercial-scale solar and battery energy storage solutions designed as long-term infrastructure.

The types of projects where solar integration during construction makes the most sense -municipal facilities, healthcare campuses, warehouses, manufacturing plants, institutional buildings, owner-occupied retail- are the projects we’ve been delivering for nearly two decades.

For developers building speculative or multi-tenant properties, we’re equally happy to consult on solar-ready provisions: system sizing, site design integration, switchgear spec, conduit routing, structural allowances, and code compliance for jurisdictions adopting the 2024 IECC.

If you’ve got a commercial project in design or early construction and want to evaluate solar integration or solar-ready provisions, let’s talk. We’ll give you the straight story and be there as a resource to discuss the whats, ifs, whens, and hows at any point in the projects construction.