The resource is the best part of the case
West Texas receives strong, consistent solar irradiance, and the clear-sky frequency here is considerably better than in the humid eastern half of the state. That is the foundation of the case and it is a real advantage.
It also means the seasonal shape is less extreme than in cloudier regions. Production is high through the long summer and remains useful through the winter, which makes annual estimates more dependable.
Ask what dataset the production model used and whether it reflects West Texas specifically rather than a statewide average. Texas is wide enough that a state-level figure does not describe either end of it well.
The resource being good is also why soiling matters more here than it would elsewhere. There is more production available to lose.
Dust, and the assumption most estimates make about rain
Panels accumulate dust, and dust reduces the light reaching the cells. In wetter climates this largely takes care of itself, because rain falls often enough to wash the array before losses build.
In an arid, windy region that assumption weakens. Gaps between meaningful rainfall can be long, and windblown dust arrives faster than it does in a humid environment, so soiling losses can be materially larger than the default a model applies.
Ask what soiling loss the production estimate assumed, as a percentage. Modelling tools use a default, and a default chosen for a national average is not a West Texas figure. If the answer is that they did not adjust it, the estimate is optimistic by an amount nobody has quantified.
Then ask what cleaning the system will need, how often, and who does it. That is a running cost and an access question, and it belongs in the arithmetic rather than being discovered later.
Tilt and access change how much cleaning you need
A steeper array sheds dust and water more readily than a shallow one, so roof pitch affects how quickly soiling builds. It is not usually something you can change, but it does tell you how much attention the system will need.
A very shallow or flat installation in this climate accumulates more and drains less, which makes cleaning access a design consideration rather than an afterthought.
Ask how the panels will be reached for cleaning and inspection, and whether the mounting leaves room to work. A layout that maximises panel count while leaving no safe access is a maintenance problem bought at installation.
Ask also about airflow behind the panels, because the same strong sun that makes this a good solar region also heats modules, and output falls as cell temperature rises. Cooler panels produce more.
The economics, which are ordinary Texas economics
Midland sits in the deregulated market, so there is no statewide net-metering mandate and what you are paid for exported solar comes from the retail plan you have selected. Plans differ enormously and some pay nothing for exports.
Compare the buyback rate and the energy rate together using PowerToChoose.org, since across a year most households buy far more than they export and the energy rate usually moves the bill more.
Texas Tax Code Section 11.27 exempts 100 percent of the appraised value a solar energy device adds to your home. Form 50-123 goes to your county appraisal district, generally by 30 April, and it is not automatic.
The 30 percent Residential Clean Energy Credit under Section 25D expired for property placed in service after 31 December 2025. Section 48E survives at 30 percent for third-party owners under leases and power purchase agreements.