TAP170930
SubstationDelaware · DELMARVA POWER
At a glance
TAP170930 is an electric transmission substation in Delaware, on DELMARVA POWER's transmission network. It is classified as distribution (69–115 kv) and connects 3 transmission lines. Substation proximity is one of the strongest speed-to-power signals for siting a datacenter — interconnection distance to an energized, high-voltage bus is often the binding constraint on time-to-energization.
Voltage & classification
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #173074 | 69 kV | DELMARVA POWER | IN SERVICE | 0.5 mi |
| #173075 | 69 kV | DELMARVA POWER | IN SERVICE | 0.4 mi |
| #174671 | 69 kV | DELMARVA POWER | IN SERVICE | 1.2 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP170930, ranked by DC Readiness. Sites this close to an energized substation carry a strong speed-to-power advantage.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| UNKNOWN132218 | Substation-Adjacent | NJ | New Castle County | 500 kV | 1,000 MW | 2.7 yrs | 65.4 |
| UNKNOWN128238 | Substation-Adjacent | DE | New Castle County | 230 kV | 300 MW | 1.5 yrs | 63.4 |
| UNKNOWN170928 | Substation-Adjacent | DE | Kent County | 230 kV | 300 MW | 1.5 yrs | 60.6 |
| MT. PLEASANT | Substation-Adjacent | DE | New Castle County | 138 kV | 100 MW | 1.5 yrs | 60.5 |
| CARTANZA | Substation-Adjacent | DE | Kent County | 230 kV | 300 MW | 1.5 yrs | 60.5 |
| UNKNOWN128197 | Substation-Adjacent | DE | Sussex County | 230 kV | 300 MW | 1.5 yrs | 60.3 |
| SUBSTATION #1 | Substation-Adjacent | DE | New Castle County | 138 kV | 100 MW | 1.5 yrs | 60.2 |
| TAP139178 | Substation-Adjacent | DE | New Castle County | 138 kV | 100 MW | 1.5 yrs | 60.1 |
Who owns the transmission lines at TAP170930?
The 3 connected lines listed above are owned by DELMARVA POWER. Line voltages range from 69 kV to 69 kV. Their combined recorded length is about 2.1 miles.
How do candidate sites near TAP170930 score?
The 8 highest-scoring candidate sites within about 25 miles range from 60 to 65 on the 0–100 DC Readiness scale. They fall in New Castle County, Kent County, Sussex County. The Delaware average across 288 scored sites is 56.9. 73 of those Delaware sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is TAP170930 substation?
TAP170930 has a maximum voltage of 69 kV. That places it in the 69–114 kV band. The median named US substation in this dataset is 115 kV, so TAP170930 is below the national midpoint.
How many transmission lines connect to TAP170930 substation?
3 transmission lines terminate at or pass through TAP170930 in the HIFLD line data. The connected lines listed here run at 69 kV. Together the listed lines cover about 2.1 miles.
Who owns TAP170930 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP170930 belong to DELMARVA POWER. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP170930 substation located?
TAP170930 is in Delaware at 39.1341, -75.4959. The datacenter candidate sites closest to it are in New Castle County, Kent County, Sussex County.
Are there datacenter candidate sites near TAP170930 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP170930. The highest-scoring is UNKNOWN132218 at 65/100. Across Delaware, the average DC Readiness score is 56.9.
More in Delaware
About this data
Source: HIFLD Electric Substations and Transmission Lines (U.S. Department of Homeland Security), as published June 29, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “TAP170930 substation, Delaware”, https://gridcensus.com/substations/delaware/tap170930-8539ddd1 (data as of June 29, 2026).
Dataset updated . Screening estimates derived from public data sources.
Substation attributes are derived from public HIFLD / EIA infrastructure data and may lag real-world upgrades or retirements. Voltage and connected-line counts are screening figures — confirm available capacity and interconnection terms directly with the operating utility and ISO.
Go deeper than the public screen
Every site and score for TAP170930 substation, Delaware is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.