Home › Texas permits › Collin County
Collin County, Texas: solar, wind, and storage permits
Who to call and what to check for a solar, wind, or battery storage project in Collin County. Texas has no statewide siting permit for solar or wind, so the key contacts are the appraisal district, state environmental offices, the grid operator, and the county itself.
Who handles property records and taxes in Collin County?
The Collin County appraisal district keeps parcel records and decides agricultural or wildlife valuation, which a solar or storage lease can end, triggering rollback taxes. The Texas Comptroller lists the district's and the county tax office's phone, email, address, and website, plus local taxing districts such as groundwater conservation districts.
Collin County directory (Texas Comptroller)Lease rates and rollback taxes
Which TCEQ office covers Collin County?
TCEQ Region 4, Dallas/Fort Worth
2309 Gravel Dr, Fort Worth TX 76118-6951
Main line: 817-588-5800 · Spills, 24 hours: 800-832-8224
Construction that disturbs 1 acre or more needs coverage under TCEQ's Construction General Permit (TXR150000) and a stormwater pollution prevention plan.
TCEQ region directoryConstruction stormwater permit
Does Collin County have zoning or a solar permit?
Texas counties generally do not have zoning authority, and the state has no siting permit for solar or wind generation. Projects are usually shaped instead by site control, road use agreements with the county, tax agreements, and utility interconnection. If the county takes part in FEMA's flood insurance program, its floodplain administrator issues development permits in mapped flood zones. Ask the county judge's office or commissioners court about road use and any local requirements.
What energy projects are proposed in Collin County?
ERCOT's August 2026 interconnection report lists 5 proposed energy projects in Collin County (5 battery storage), about 975 MW in all. 4 of the 5 have a signed interconnection agreement.
Got an offer? Check whether the company or project appears here. A listing means a developer asked ERCOT to study connecting it to the grid; many listed projects are never built, and projects further along are more likely to proceed.
Scroll the table sideways to see every column.
| Project and connection point | Developer | Type | MW | Projected in service | Stage |
|---|---|---|---|---|---|
| Drake BESS#833 Wylie Switch 138kV | Mallard Energy Storage LLC | Battery storage (stand-alone) | 257.3 | Jan 2027 | Signed; security posted |
| Purple Sage BESS 1Anna 345 kV Bus# 2373. | Purple Sage, LLC | Battery storage (stand-alone) | 156.0 | Feb 2028 | Signed; security posted |
| Purple Sage BESS 2Anna 345 kV Bus# 2373 | Purple Sage, LLC | Battery storage (stand-alone) | 156.0 | Feb 2028 | Signed; security posted |
| Bufflehead BESS2475 Lavon Switch 138kV | Boxcar Energy Storage, LLC | Battery storage (stand-alone) | 153.8 | Feb 2027 | Signed Apr 2024 |
| Little Ridge StorageTap 138kV Swindell (812) - Olinger (818) | TX BESS B LLC | Battery storage (stand-alone) | 252.0 | Sep 2027 | In study |
Stage: In study means ERCOT is still studying the connection; Signed means the interconnection agreement is signed; security posted means the developer has also posted financial security and a notice to proceed; Energized and Approved to connect mean ERCOT has approved the project to energize or synchronize with the grid. "Self-limiting" batteries are reported as 0 MW because they are sized below the site's total capacity. Source: ERCOT Generator Interconnection Status (GIS) Report, August 2026. ERCOT prepares this report for planning purposes from data entered by developers and transmission providers, and notes it may contain errors or be out of date.
Where are the flood maps for Collin County?
FEMA flood maps for Collin County
How does a project here connect to the grid?
Most of Texas is on the ERCOT grid, but parts of the Panhandle and northeast Texas are in SPP, parts of east Texas are in MISO, and El Paso is in the western grid. The serving utility decides which process applies.
Interconnection by market and utilityERCOT resource integration
What state and federal reviews can apply?
Depending on the site: wetland permits from the U.S. Army Corps of Engineers, endangered species review through U.S. Fish and Wildlife, historic review through the Texas Historical Commission, wildlife comments from Texas Parks and Wildlife, and FAA notice for tall structures like wind turbines.
Statewide and federal contactsTexas decommissioning law
Check a specific property in Collin County
Get a free land report for any point: flood zone, wetlands, nearest power line, soils, and parcel acreage.
Other counties served by TCEQ Region 4
Cooke · Dallas · Denton · Ellis · Erath · Fannin · Grayson · Hood · Hunt · Johnson · Kaufman · Navarro · Palo Pinto · Parker · Rockwall · Somervell · Tarrant · Wise