EC Near Motiva Enterprises Port Arthur Refinery
GreenfieldJefferson, Texas · MISO
At a glance
EC Near Motiva Enterprises Port Arthur Refinery is a greenfield datacenter candidate site in Jefferson, Texas, scoring 50.1/100 DC Readiness — 47th of 86 scored sites in the county. It sits in the MISO grid region and the ENTERGY TEXAS INC. service territory, where interconnection has averaged 3.5 years from request to operation.
Power & interconnection
Speed to power
Middle-of-the-pack interconnection conditions for this grid.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
No statewide moratorium, but since Aug 3, 2026 ERCOT has paused approvals to energize new datacenter and crypto loads ≥75 MW pending an audit due Dec 10, 2026. SB 6 adds large-load obligations above 75 MW.
SB 6: loads ≥75 MW accept ERCOT emergency curtailment + contribute to interconnection cost.
Incentive detail: Chapter 313/Chapter 403 property tax abatements; Texas Enterprise Fund; no state income tax.
Site location
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How does EC Near Motiva Enterprises Port Arthur Refinery compare with other sites in Jefferson?
EC Near Motiva Enterprises Port Arthur Refinery ranks 47th of 86 scored candidate sites in Jefferson. Its 50.1/100 is roughly in line with the county average of 50.5. It is about 11% below the Texas average of 56.4 and roughly in line with the national average of 53.2.
Against the Texas average, its strongest sub-score is water (59 vs 46) and its weakest is power availability (30 vs 46). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is EC Near Motiva Enterprises Port Arthur Refinery to power, fiber and other datacenters?
The nearest located transmission bottleneck is MDOPHR99_A (ERCOT), 74 miles away. For connectivity, the nearest internet exchange facility is Equinix HO1 - Houston at 90.9 miles. 9 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Equinix HO1 - Houston, 90.9 miles away.
What are the flood, water and hazard risks at EC Near Motiva Enterprises Port Arthur Refinery?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk). WRI rates baseline water stress at 2.80 on a 0–5 scale. Mapped wetlands (National Wetlands Inventory) are present on the parcel. At the county level, FEMA's National Risk Index rates Jefferson "Very High".
Full DC Readiness breakdown
All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.
Nearby comparable sites
Other scored datacenter candidate sites in Jefferson, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| UNKNOWN301966 | Substation-Adjacent | 345 kV | 600 MW | 3.5 yrs | 58.8 |
| UNKNOWN302906 | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 58.1 |
| TAP310882 | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 57.3 |
| PORT ACRES BULK | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 57.3 |
| AMELIA BULK | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 57.3 |
| HANKS | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 57.3 |
| OZ Jefferson | Greenfield | — | — | 3.5 yrs | 57.2 |
| KOLBS | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 57.2 |
EC Near Motiva Enterprises Port Arthur Refinery: common questions
What is the DC Readiness score of EC Near Motiva Enterprises Port Arthur Refinery?
EC Near Motiva Enterprises Port Arthur Refinery scores 50.1/100 on the GridCensus DC Readiness scale, rated fair. It ranks 47th of 86 scored sites in Jefferson. The Jefferson average is 50.5 and the Texas average is 56.4.
Which electric utility serves EC Near Motiva Enterprises Port Arthur Refinery?
ENTERGY TEXAS INC. (investor owned) holds the retail service territory that contains the site; its holding company is ENTERGY CORP.
What grid region is EC Near Motiva Enterprises Port Arthur Refinery in?
EC Near Motiva Enterprises Port Arthur Refinery is in the MISO region. Projects interconnecting there have averaged a 3.5-year wait from queue request to operation.
Is EC Near Motiva Enterprises Port Arthur Refinery in a flood zone?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk).
Who owns EC Near Motiva Enterprises Port Arthur Refinery?
Parcel records list the owner as ENTERGY TEXAS, INC. (private land).
How far is EC Near Motiva Enterprises Port Arthur Refinery from an internet exchange?
The nearest internet exchange facility is Equinix HO1 - Houston, about 90.9 miles away; 9 fiber providers report service at the location.
Related pages
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published October 10, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “EC Near Motiva Enterprises Port Arthur Refinery, Jefferson, TX”, https://gridcensus.com/datacenter-sites/texas/jefferson/ec-near-motiva-enterprises-port-arthur-refinery-afc96f8b (data as of October 10, 2026).
Dataset updated . Screening estimates derived from public data sources.
Figures are screening estimates derived from public infrastructure data. Catalogued capacity reflects theoretical candidate capacity, not deliverable or committed interconnection. Confirm all values with the utility, ISO, and on-the-ground due diligence.
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