Milam County, Texas: solar, wind, and storage projects and permits
Queue data as of ERCOT's September 2026 GIS report · Contacts checked 2026-09-26 · Next update early next month
29 proposed energy projects from ERCOT's September 2026 report, plus who to call in Milam County and in TCEQ Region 9 before signing a solar, wind, or battery storage lease.
Check land in Milam CountyOpens the land report with the map on the county; click a spot for its flood, wetland, habitat, line-distance and parcel check.
Power reliability here: minutes without power per year, outages per year, and outage length for Milam County, 2013–2024, from the serving utilities' EIA filings.
What energy projects are proposed in Milam County?
ERCOT's September 2026 interconnection report lists 29 proposed energy projects in Milam County (14 solar, 13 battery storage and 2 gas), about 8,290 MW in all. 16 of the 29 have a signed interconnection agreement, and 6 have been approved for energization or synchronization.
What stands out in Milam County
By capacity, solar leads in Milam County with 3,396 MW across 14 projects, followed by battery storage (13 projects, 2,757 MW) and gas (2 projects, 2,138 MW); 1 self-limiting project (reported at 0 MW because the resource limits its own output) is listed without a capacity. The largest single project is Sandow Lakes Energy Station, a 1,292 MW gas turbine project listed under SL Energy Power Plant I, LLC, still in study, and its target online date is Apr 2028. Of the 29, 13 are still in ERCOT's study process, 5 have a signed interconnection agreement but no security posted yet, 5 have posted security or started construction and 6 are approved for energization or synchronization. Connection points are mostly at 345 kV (17 projects) and 138 kV (10 projects) (why the voltage matters). Brahman Renewables, San Gabriel Solar LLC and Stoneridge Solar, LLC are each listed on 2 projects; 25 different companies appear in all. Target online dates for the projects not yet running span Aug 2026 to Feb 2030. All of them fall in ERCOT's South load zone.
A listing is a request to study a grid connection, not a built project; the stage column says how far each one has gone.
Stage, most advanced first: Approved for synchronization (first power) · Approved for energization (backfeed) · Under construction · Signed; security posted (interconnection agreement signed and financial security posted) · Signed (agreement signed, security not yet posted) · In study (screening or full interconnection study, no agreement). A target date that has already passed is marked; ERCOT keeps the developer's last reported date until the developer changes it.
Scroll the table sideways to see every column.
| Project and connection point | Developer as listed by ERCOT | Type | MW | Target online date iThe commercial operation date the developer reported to ERCOT (ERCOT calls it the projected COD). Developers set and change it, many projects slip, and some are never built. It is not a promise or a construction date. | Stage |
|---|---|---|---|---|---|
| Sypert Branch Solar ProjectTap 345kV #3751 Scooter Switch - #3687 Bell County East Switch Ckt 2 | Sypert Branch Solar LLC | Solar | 261.1 | Apr 2026 | Approved for synchronization |
| Eastbell Milam Solar345 kV Bell County East Switch (bus# 3687) - TNP One (bus# 39950) c... · shared with 1 other request | EDP RENEWABLES NORTH AMERICA LLC | Solar | 244.9 | Nov 2026 | Approved for synchronization |
| Eastbell Milam Solar II345 kV Bell County East Switch (bus# 3687) - TNP One (bus# 39950) c... · shared with 1 other request | Cattlemen Solar Park II LLC | Solar | 150.6 | Nov 2026 | Approved for synchronization |
| Yaupon Solar SLFTap 345 kV Gibson Switch (3706) – TNP One (39950) | Yaupon Solar, LLC | Solar | 200.8 | Nov 2026 | Approved for synchronization |
| Stoneridge BESSTap 345 kV 13429 SANDOW SWITCH - 7040 AUSTROP CKT 2 | Stoneridge Solar, LLC | Battery storage | 101.9 | Dec 2026 | Approved for synchronization |
| Stoneridge SolarTap 345 kV 13429 SANDOW SWITCH - 7040 AUSTROP | Stoneridge Solar, LLC | Solar | 201.6 | Dec 2026 | Approved for synchronization |
| Hoyte Solar(3707) Cannon Switch 138kV | Milano Solar LLC | Solar | 206.8 | Apr 2027 | Under construction |
| Camino Santiago Solar345 kV Herndon Switch Substation (#3804) | Camino Solar Project, LLC | Solar | 196.3 | Sep 2027 | Signed; security posted |
| Adelite StorageTap 138kV Thorndale North (bus #3659) – Rookie Switch (bus #3701) | Adelite Storage Project LLC | Battery storage (stand-alone) | 231.9 | Apr 2028 | Signed; security posted |
| Sandow Solartap one 345kV 7040 Austrop - 13429 Sandow line | Sandow Lakes Ranch Solar I, LLC | Solar | 287.2 | Jun 2028 | Signed; security posted |
| Yaupon Storage SLFto Tap 345 kV Gibson Switch (3706) – TNP One (39950) | Yaupon Solar, LLC | Battery storage (paired with solar) | Self-limiting | Jul 2028 | Signed; security posted |
| Happy Dog StorageTap 345kV 3704 Hog Creek Switch – 3687 Bell County East Switch · shared with 1 other request | Rosula Storage LLC | Battery storage (paired with solar) | 104.5 | Aug 2027 | Signed Dec 2024 |
| HappyDogSolarTap 345kV 3704 Hog Creek Switch – 3687 Bell County East Switch · shared with 1 other request | Rosula Solar LLC | Solar | 85.5 | Aug 2027 | Signed Dec 2024 |
| San Gabriel SolarTap 138 kV 3750 Vosslake - 3749 Buckholts · shared with 1 other request | San Gabriel Solar LLC | Solar | 255.0 | Jul 2028 | Signed Aug 2026 |
| San Gabriel StorageTap 138 kV 3750 Vosslake - 3749 Buckholts · shared with 1 other request | San Gabriel Solar LLC | Battery storage (paired with solar) | 127.5 | Jul 2028 | Signed Aug 2026 |
| Rhoda StorageTap 138kV 32 Robertson - 64 Milano | Milam Energy, LLC | Battery storage (stand-alone) | 141.2 | Aug 2028 | Signed Dec 2025 |
| Betel Storage I3377 Little Pond Switch ( LTPSW) 345 | BETEL STORAGE I | Battery storage (stand-alone) | 500.0 | Aug 2026 date passed; status per ERCOT | In study |
| Aquila Solar3706 Gibson Switch 345kV | Ben Milam Solar 5 | Solar | 500.0 | Nov 2026 | In study |
| Betel Storage II3377 Little Pond 345 | BETEL STORAGE II | Battery storage (stand-alone) | 500.0 | Dec 2026 | In study |
| Burgos Solar3701 Rookie Switch 138 kV | Twin Oaks Solar, LLC | Solar | 105.5 | Nov 2027 | In study |
| Champs Elysees BESSTap 345 kV 3377 Little Pond Switch - 3704 Hog Creek Switch | Champs Elysees Renewables, LLC | Battery storage (stand-alone) | 256.1 | Dec 2027 | In study |
| Sandow Lakes Energy Station#13430 Sandow Switch 138kV | SL Energy Power Plant I, LLC | Gas turbine | 1,291.6 | Apr 2028 | In study |
| Petunia Storage Project138kV Tap 3675 Rogers - 3485 Tin Roof Pod | Petunia Storage Project LLC | Battery storage (stand-alone) | 231.9 | Jun 2028 | In study |
| Pavo Creek StorageTap #3659 Thorndale North - #3701 Rookie Switch 138 kV | Pavo Creek Storage, LLC | Battery storage (stand-alone) | 154.2 | Sep 2028 | In study |
| Brahman Renewables SolarTap Voss Lake switch #3751 – Badger Switch #3761 345 kV · shared with 1 other request | Brahman Renewables | Solar | 100.6 | May 2029 | In study |
| Brahman Renewables StorageTap Voss Lake switch #3751 – Badger Switch #3761 345 kV · shared with 1 other request | Brahman Renewables | Battery storage (paired with solar) | 206.9 | May 2029 | In study |
| Scorpius Solar3377 LTPSW 345KV | Ben Milam Solar 4 | Solar | 600.0 | Jun 2029 | In study |
| MilamStation Power Secured Gas GenerationLittle Pond Switch (Bus #3377) – Hog Creek Switch (Bus #3704) 345 k... | LCC-TX8, LLC | Gas combined cycle | 846.0 | Sep 2029 | In study |
| Obbligato BESSTap 138kV 120# TALBRTRIDG – 3683# MINERVA1_8 | Obbligato BESS, LLC | Battery storage (stand-alone) | 200.7 | Feb 2030 | In study |
Crowded connection points in Milam County
Substations and switching stations named by two or more of the county's requests, matched on ERCOT's PSS/E bus number rather than the exact wording, so "60404 SOLSTICE", "AEP Solstice Substation #60404" and a tap off the Solstice line count together. Every request statewide that names the bus is listed; a request on a tap line counts toward both ends. Sharing a bus is not the same as sharing a study group, and ERCOT decides the latter.
Bell County (3687) 345 kV 8 requests · 1,400 MW · 5 in Milam County, 3 in Bell6 approved for synchronization, 2 signed
- Chillingham Solar 23INR0070 · Solar · 352 MW · Approved for synchronization · Bell
- Sypert Branch Solar Project 24INR0070 · Solar · 261 MW · Approved for synchronization
- Eastbell Milam Solar 21INR0203 · Solar · 245 MW · Approved for synchronization
- Eastbell Milam Solar II 24INR0208 · Solar · 151 MW · Approved for synchronization
- Hermes Storage 24INR0365 · Battery storage · 100 MW · Approved for synchronization · Bell
- Hermes Solar 23INR0344 · Solar · 100 MW · Approved for synchronization · Bell
- Happy Dog Storage 25INR0442 · Battery storage · 105 MW · Signed Dec 2024
- HappyDogSolar 25INR0382 · Solar · 86 MW · Signed Dec 2024
Little Pond (3377) 345 kV 5 requests · 2,702 MW5 in study
- MilamStation Power Secured Gas Generation 29INR0120 · Gas combined cycle · 846 MW · In study
- Scorpius Solar 26INR0609 · Solar · 600 MW · In study
- Betel Storage I 26INR0630 · Battery storage · 500 MW · In study
- Betel Storage II 26INR0633 · Battery storage · 500 MW · In study
- Champs Elysees BESS 27INR0216 · Battery storage · 256 MW · In study
Tnp One (39950) 345 kV 22 requests · 3,995 MW · 4 in Milam County, 18 in Robertson, Bell10 in study, 5 approved for synchronization, 4 signed; security posted, 3 signed
- Eastbell Milam Solar 21INR0203 · Solar · 245 MW · Approved for synchronization
- Yaupon Solar SLF 24INR0042 · Solar · 201 MW · Approved for synchronization
- Eastbell Milam Solar II 24INR0208 · Solar · 151 MW · Approved for synchronization
- Hermes Storage 24INR0365 · Battery storage · 100 MW · Approved for synchronization · Bell
- Hermes Solar 23INR0344 · Solar · 100 MW · Approved for synchronization · Bell
- Bee Branch IA 23INR0421 · Battery storage · 204 MW · Signed; security posted · Robertson
- Tidwell Prairie II Batt 22INR0503 · Battery storage · 204 MW · Signed; security posted · Robertson
- Barton Branch IA 22INR0504 · Battery storage · 204 MW · Signed; security posted · Robertson
- Yaupon Storage SLF 24INR0169 · Battery storage · 0 MW · Signed; security posted
- Big Rooter East Solar 29INR0017 · Solar · 555 MW · Signed Jun 2025 · Robertson
- Big Rooter West Solar 26INR0431 · Solar · 403 MW · Signed Feb 2025 · Robertson
- Big Rooter East Storage 29INR0018 · Battery storage · 201 MW · Signed Jun 2025 · Robertson
- BRP Mekong BESS 24INR0135 · Battery storage · 410 MW · In study · Robertson
- Big Rooter West Storage 26INR0432 · Battery storage · 201 MW · In study · Robertson
- Pioneer Path Energy Storage 1 27INR0418 · Battery storage · 102 MW · In study · Robertson
- Pioneer Path Energy Storage 2 27INR0423 · Battery storage · 102 MW · In study · Robertson
- Pioneer Path Energy Storage 3 27INR0424 · Battery storage · 102 MW · In study · Robertson
- Pioneer Path Energy Storage 4 27INR0425 · Battery storage · 102 MW · In study · Robertson
- Prairie Horizon Energy Storage 1 27INR0426 · Battery storage · 102 MW · In study · Robertson
- Prairie Horizon Energy Storage 2 27INR0427 · Battery storage · 102 MW · In study · Robertson
- Prairie Horizon Energy Storage 3 27INR0428 · Battery storage · 102 MW · In study · Robertson
- Prairie Horizon Energy Storage 4 27INR0429 · Battery storage · 102 MW · In study · Robertson
Hog Creek (3704) 345 kV 4 requests · 1,292 MW2 signed, 2 in study
- Happy Dog Storage 25INR0442 · Battery storage · 105 MW · Signed Dec 2024
- HappyDogSolar 25INR0382 · Solar · 86 MW · Signed Dec 2024
- MilamStation Power Secured Gas Generation 29INR0120 · Gas combined cycle · 846 MW · In study
- Champs Elysees BESS 27INR0216 · Battery storage · 256 MW · In study
Austrop (7040) 345 kV 10 requests · 2,624 MW · 3 in Milam County, 7 in Bastrop, Caldwell, Travis5 signed, 2 in study, 2 approved for synchronization, 1 signed; security posted
- Stoneridge Solar 24INR0031 · Solar · 202 MW · Approved for synchronization
- Stoneridge BESS 25INR0389 · Battery storage · 102 MW · Approved for synchronization
- Sandow Solar 22INR0350 · Solar · 287 MW · Signed; security posted
- SCHNEIDER COMBINED CYCLE 30INR0054 · Gas combined cycle · 880 MW · Signed Dec 2025 · Caldwell
- Waterloo Solar 1 25INR0422 · Solar · 201 MW · Signed Sep 2024 · Bastrop
- Waterloo BESS 1 25INR0447 · Battery storage · 120 MW · Signed Sep 2024 · Bastrop
- SCHNEIDER GAS RICE 29INR0176 · Gas engines · 113 MW · Signed Dec 2025 · Caldwell
- SCHNEIDER GAS RICE PHASE 2 31INR0013 · Gas engines · 113 MW · Signed Dec 2025 · Caldwell
- Fort Worth Power Core Bastrop Gas Plant 26INR0560 · Gas combined cycle · 506 MW · In study · Bastrop
- AP Greenport 23INR0474 · Battery storage · 100 MW · In study · Travis
Sandow (13429) 345 kV 3 requests · 591 MW2 approved for synchronization, 1 signed; security posted
- Stoneridge Solar 24INR0031 · Solar · 202 MW · Approved for synchronization
- Stoneridge BESS 25INR0389 · Battery storage · 102 MW · Approved for synchronization
- Sandow Solar 22INR0350 · Solar · 287 MW · Signed; security posted
Rookie (3701) 138 kV 3 requests · 492 MW2 in study, 1 signed; security posted
- Adelite Storage 23INR0502 · Battery storage · 232 MW · Signed; security posted
- Pavo Creek Storage 27INR0441 · Battery storage · 154 MW · In study
- Burgos Solar 25INR0214 · Solar · 106 MW · In study
Gibson (3706) 345 kV 3 requests · 701 MW1 approved for synchronization, 1 signed; security posted, 1 in study
- Yaupon Solar SLF 24INR0042 · Solar · 201 MW · Approved for synchronization
- Yaupon Storage SLF 24INR0169 · Battery storage · 0 MW · Signed; security posted
- Aquila Solar 26INR0635 · Solar · 500 MW · In study
Voss Lake (3751) 345 kV 3 requests · 569 MW2 in study, 1 approved for synchronization
- Sypert Branch Solar Project 24INR0070 · Solar · 261 MW · Approved for synchronization
- Brahman Renewables Storage 29INR0059 · Battery storage · 207 MW · In study
- Brahman Renewables Solar 29INR0058 · Solar · 101 MW · In study
Thorndale North (3659) 138 kV 3 requests · 835 MW · 2 in Milam County, 1 in Williamson2 in study, 1 signed; security posted
- Adelite Storage 23INR0502 · Battery storage · 232 MW · Signed; security posted
- Big Watt Mustang Power 27INR0606 · Gas combined cycle · 449 MW · In study · Williamson
- Pavo Creek Storage 27INR0441 · Battery storage · 154 MW · In study
Vosslake (3750) 138 kV 2 requests · 382 MW2 signed
- San Gabriel Solar 28INR0185 · Solar · 255 MW · Signed Aug 2026
- San Gabriel Storage 28INR0191 · Battery storage · 128 MW · Signed Aug 2026
Buckholts (3749) 138 kV 2 requests · 382 MW2 signed
- San Gabriel Solar 28INR0185 · Solar · 255 MW · Signed Aug 2026
- San Gabriel Storage 28INR0191 · Battery storage · 128 MW · Signed Aug 2026
Badger (3761) 345 kV 2 requests · 307 MW2 in study
- Brahman Renewables Storage 29INR0059 · Battery storage · 207 MW · In study
- Brahman Renewables Solar 29INR0058 · Solar · 101 MW · In study
What the stages and dates mean: how to read ERCOT's report. ERCOT's report lists self-limiting facilities (batteries that limit injection below nameplate) at 0 MW; repowers of existing plants show 0 with no capacity change. "Approved for energization" and "approved for synchronization" are ERCOT's own milestones (backfeed, then first power). "Shared with N other requests" counts active requests anywhere in ERCOT naming the same point of interconnection, matched on ERCOT's exact wording, so a bus written two ways counts as two points. Source: ERCOT Generator Interconnection Status (GIS) Report, September 2026, planning data entered by developers and transmission providers that ERCOT says may contain errors. Parcel & Grid is not affiliated with ERCOT.
Who to contact in Milam County
- Milam County appraisal district and tax office: parcel records and agricultural valuation, which a lease can end (directory, Texas Comptroller · rollback taxes).
- TCEQ Region 9, Waco: 6801 Sanger Ave, Ste 2500, Waco TX 76710-7826, 254-751-0335; spills, 24 hours: 800-832-8224. Handles the construction stormwater permit for sites of 1 acre or more (TCEQ).
- Milam County judge and commissioners court: road use agreements, tax agreements, and floodplain development permits where the county takes part in the flood insurance program.
- Flood maps: FEMA map search for Milam County.
Permits and reviews for Milam County
Texas has no state siting permit for solar or wind, and Texas counties generally have no zoning authority, so a project in Milam County is shaped by site control, the county road use agreement, tax agreements, and the grid connection (what still applies · the twelve approvals, stage by stage). Wetland, endangered species, historic, and FAA reviews depend on the site: statewide and federal contacts · decommissioning law.
Local action: as of October 17, 2026, we found no 2024–2026 commissioners court action on solar, wind, or battery storage posted on Milam County's website or reported by local news. Counties act mostly through tax abatement and road use agreements, so ask the county judge's office whether any are pending.
How a project in Milam County connects to the grid
Milam County is on the ERCOT grid. The projects listed above are in ERCOT's South load zone. The serving utility handles the connection request. Interconnection by market and utility · what ERCOT is.
How long it takes. ERCOT staff put the connection process at 18 to 30 months for generation of 10 MW or more, before construction or supply delays (ERCOT, Oct. 2024). Across the U.S., the median project built in 2025 took 61 months from interconnection request to commercial operation (Berkeley Lab, Queued Up 2026), so a lease signed today usually means construction years out: timelines by market.
Solar for homes and businesses in Milam County
Texas rules for rooftop and on-site systems are the same in every county; your electric utility sets the application steps: Texas home and business solar rules · your utility's application links.
Get the land report for a spot in Milam 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 9
Bell · Bosque · Brazos · Burleson · Coryell · Falls · Freestone · Grimes · Hamilton · Hill · Lampasas · Leon · Limestone · Madison · McLennan · Mills · Robertson · San Saba · Washington