Texas Solar and Storage Siting: First Screen

By Batu Yetki, founder of Voltane.

What a first-pass screen is for

Most sites fail for plain reasons. The parcel is too small once the creek is taken out. The nearest line is the wrong voltage. Half the tract is in a flood zone. Each of these facts is public. A screen checks them across many parcels at once so that only real candidates go forward.

Solar: land first

Size. Turn your MW target into a minimum acreage. Voltane uses a planning ratio for this and a hard floor of 50 acres. Your layout and setbacks set the real number.
Flat, buildable block. Measure the largest flat, connected area after removing flood zones, wetlands and protected land. Deeded acres overstate what you can build on.
Solar resource. Check long-term average sunlight for the area.
Land cover. Cropland and pasture are simpler than forest or developed land.

Storage: grid first

A battery project needs far less land than solar. Its value comes from where it connects. For storage, put more weight on:

Distance to the nearest substation.
Distance to higher-voltage lines. Voltane favors 138 kV and above.
What else is queued nearby, by fuel and status.
Existing generators in the area.

For a hybrid site, apply the solar land rules and the storage grid rules together.

Grid checks for both

Distance to transmission and substations. Closer usually means a cheaper tie-in. It is a proxy for grid access, not a statement about interconnection.
The ERCOT queue. The interconnection queue shows who else has asked to connect in the county. It is a competition signal. It says nothing about headroom.
Which grid. Not all of Texas is in ERCOT. Check the serving utility and its grid.

Keep data vintages in mind. Voltane's transmission lines come from a public federal data set last released in September 2024, so newer lines may be missing.

Hazards and exclusions

Flood. FEMA flood hazard zones. Where no digital FEMA map exists, flood exposure is unknown, not zero.
Wetlands. The national inventory is a mapped guide, not a field delineation.
Protected land. Parks, refuges and conservation areas.

What a screen does not tell you

Whether a point of interconnection can take your project. That needs ERCOT studies.
Who owns the parcel or whether it is for sale. Voltane does not publish landowner names. Use the official county record.
Local solar or battery rules, setbacks and fire code.
Soil, species, cultural resources or drainage. Those need site visits and specialists.
Prices or revenue at the node.

After the screen, the usual next steps are a screening study, title work and a site walk.

Getting a screened shortlist

Voltane's Texas engine applies these checks across the Texas counties it processes. Through Find me a site, you send your MW, target year, region and acreage, and get back a priced shortlist with the evidence for each site. More detail is on the Texas solar site selection and Texas battery storage site screening pages.

Questions people ask

How many acres does a solar project need in Texas?

It depends on your layout, equipment and setbacks. Voltane uses a planning ratio to turn MW into a minimum flat, buildable block, with a hard floor of 50 acres. Treat it as a screening rule of thumb.

Does a site close to a substation have room to connect?

Not necessarily. Distance is a proxy for tie-in cost. Whether the grid can take your project is answered by ERCOT studies.

Does the ERCOT queue show available capacity?

No. It shows how many projects have asked to connect. It is a competition signal, and many queued projects are never built.

More guides

Need a site, or have one?

Tell us what you need and Voltane finds, reports on and prices candidate sites in ERCOT. Or bring a site you already have for a path-to-power report (by request for now).

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Solar and storage site selection in Texas: a first-pass screen