Trinity, TX: data center power outlook

Grid position at a glance

Serving utilities

ENTERGY TEXAS INC., HOUSTON COUNTY ELEC COOP INC, JASPER-NEWTON ELEC COOP, INC, MID-SOUTH ELECTRIC COOP ASSN, ONCOR ELECTRIC DELIVERY COMPANY LLC, SAM HOUSTON ELECTRIC COOP INC, SAM RAYBURN MUNICIPAL PWR AGNY

ISO / market

ERCOT (Electric Reliability Council of Texas)

Highest grid access

138 kV

Substations in county

4

Industrial retail rate

6.5¢/kWhState-level EIA-861 industrial average. The map colours by this, not by a per-county rate.

Per-utility rates in county

5 of 7 serving utilities: 5.9 to 9.0¢/kWhLowest to highest industrial rate among the utilities serving this county (EIA-861 Sales to Ultimate Customers). A spread, not the county’s rate, and it covers only the serving utilities that report one.

Interconnection queue

3 projects, 500 MW

Proposed generation

100 MW planned or under constructionUnits filed with EIA as planned or under construction (Form EIA-860M). Declared intent from the federal inventory, not the interconnection queue and not guaranteed capacity.

Grid carbon intensity

982 lb CO2/MWh

Water withdrawals

1.8 Mgal/dAll uses, freshwater. Water already withdrawn locally, not water available for a new load.

Construction labor near site

31,052 employed in construction within ~120 km (20 of 21 counties reporting)A large build needs hundreds of skilled construction workers on site for one to three years. A county with few of them within commuting range means bussing crews in, per diem, and housing, which is real cost and schedule risk. This counts people employed in construction within about a 120 km drive (BLS QCEW), summed across nearby counties. It is not labor known to be available: most are already committed to other projects, and no public data reveals who is free.

Grid conditions in Trinity

Below, Trinity in Texas is described from public data as a starting point for siting diligence. Trinity reaches 138 kV at its highest mapped voltage, a transmission class that can carry a substantial interconnection where capacity exists. Only 4 substations is mapped in Trinity, Texas, keeping interconnection points few.

Trinity falls inside the ERCOT market (Electric Reliability Council of Texas), which governs how its interconnection requests and capacity move. The rate for Trinity is the 6.5 cents per kWh state industrial average (EIA-861), the same figure the map colours by. Across Trinity, reported per-utility industrial rates cover 5 of 7 serving utilities: 5.9 to 9.0¢/kWh, offered only as context beneath the state figure.

Trinity has 3 interconnection-queue projects on record, totalling 500 MW of requested capacity. Trinity has 100 MW of planned or under-construction generation on file in EIA-860M. The balancing authority covering Trinity carries a grid carbon intensity of 981.982 lb CO2 per MWh in eGRID.

Reported freshwater withdrawals for all uses in Trinity are 1.81 million gallons per day in the USGS 2015 compilation, existing demand rather than water free for a new load. Around Trinity, some 31,052 people work in construction within about a 120 km commute (BLS QCEW), a measure of reach, not of available crews.

These numbers for Trinity are screening-grade context for the whole county, drawn from public data with the gaps left visible. Read the figures for Trinity, Texas together rather than one at a time: grid access matters less without substations near it, and a quiet queue reads differently inside an organized market than outside one. The next step for Trinity, Texas is an address-level interconnection study; the county figures here only narrow where to look. For Trinity, Texas, the source log below records where each figure comes from and when it was pulled, keeping the provenance visible.

Sources