ADDY
SubstationWashington · BONNEVILLE POWER ADMINISTRATION
ADDY is an electric transmission substation in Washington, operated by BONNEVILLE POWER ADMINISTRATION. It is classified as high-voltage (230 kv) and connects 5 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
Ownership & operation
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #68202 | 230 kV | BONNEVILLE POWER ADMINISTRATION | — | 50.4 mi |
| #68224 | 230 kV | BONNEVILLE POWER ADMINISTRATION | — | 25.8 mi |
| #68228 | 230 kV | BONNEVILLE POWER ADMINISTRATION | — | 57.7 mi |
| #68214 | 115 kV | BONNEVILLE POWER ADMINISTRATION | — | 22.4 mi |
| #68229 | 115 kV | BONNEVILLE POWER ADMINISTRATION | — | 15.3 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of ADDY, 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 |
|---|---|---|---|---|---|---|---|
| ADDY | Substation-Adjacent | WA | Stevens County | 230 kV | 300 MW | 1.7 yrs | 65.4 |
| KETTLE FALLS GENERATING STATION | Substation-Adjacent | WA | Stevens County | 115 kV | 100 MW | 1.7 yrs | 62.6 |
| CLAYTON | Substation-Adjacent | WA | Spokane County | 115 kV | 100 MW | 1.7 yrs | 62.4 |
| Greenfield (BELL - ADDY) | Greenfield | WA | Spokane County | 230 kV | 300 MW | 1.7 yrs | 62.1 |
| Greenfield (BELL - ADDY) | Greenfield | WA | Stevens County | 230 kV | 300 MW | 1.7 yrs | 61.2 |
| TAP203490 | Substation-Adjacent | WA | Spokane County | 115 kV | 100 MW | 1.7 yrs | 61.0 |
| Greenfield (BELL - ADDY) | Greenfield | WA | Stevens County | 230 kV | 300 MW | 1.7 yrs | 60.8 |
| TAP203493 | Substation-Adjacent | WA | Pend Oreille County | 115 kV | 100 MW | 1.7 yrs | 60.7 |
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
This page shows a public slice of the GridCensus dataset for ADDY substation, Washington. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.