PGE distributed-generation screening, one substation's feeders

What Portland General Electric's public distributed-generation screening said about each feeder it files under one substation, Brookwood in Hillsboro, at the edition's date: peak load in MVA, net daytime minimum load and connected and queued distributed generation in MW, nominal voltage in kV, and PGE's own readiness and generation-limited classifications. PGE publishes no available hosting capacity, so the table has none and none is derived. Feeders are measured at their own times and are never added together. The rows are shown on PGE's organization page and each feeder's 500-foot buffer on the map; the atlas publishes no copy of PGE's layer.

At a glance

Period
2026
One row is
feeder buffer x edition
Built from source rows of
feeder buffer x edition: one polygon per distribution feeder, the overhead and underground feeder buffered to 500 feet; OBJECTID is stable only within one edition
Evidence and method
reported · directDISCLAIMER: The graphic representations and other information/data contained herein (collectively the “depiction”) is the property of PGE. The depiction is made available for your review for informational purposes only. Information derived from GIS data is subject to change. The depiction is provided “as is” without any guarantee, representation or warranty of any kind, either express, implied, or statutory. PGE assumes no liability with respect to any reliance you place on the depiction. (Item terms, quoted.) PGE's screening of one feeder at one date: peak load in MVA, net daytime minimum load and connected and queued distributed generation in MW, nominal voltage in kV, and PGE's own readiness and generation-limited classifications. PGE does not publish available hosting capacity, so none is shown or derived here, and nothing here is an interconnection approval or a guarantee of present capacity. Feeder figures are not added together. PGE's user guide and FAQ are linked, not reproduced.
Origin
PGE Distribution System Data (the Distributed Generation Evaluation Map's feeder layer), layer 0, the feeders PGE files under substation BROOKWOOD ↗Source notice and licenceLicence: PGE item disclaimer: PGE property, made available for review for informational purposes only, as is and without warranty
Edition in this release
layer 'PGE Distribution System Data 07-22-2026'; retrieved 2026-09-29T04:57:07Z · · retrieved 2026-09-29layer 'PGE Distribution System Data 07-22-2026'; retrieved 2026-09-29T04:57:07Z · · retrieved 2026-09-29layer 'PGE Distribution System Data 07-22-2026'; retrieved 2026-09-29T04:57:07Z · · retrieved 2026-09-29layer 'PGE Distribution System Data 07-22-2026'; retrieved 2026-09-29T04:57:07Z · · retrieved 2026-09-29layer 'PGE Distribution System Data 07-22-2026'; retrieved 2026-09-29T04:57:07Z · · retrieved 2026-09-29
Download
PGE's own feeder layer (ArcGIS, layer 0, every feeder) ↗The atlas reads the feeders of one substation from PGE's public layer and shows them on PGE's organization page and the map; it publishes no copy of the layer, no table of its rows and no geometry file. PGE's Distributed Generation Evaluation Map shows the same data.

Measures

ColumnUnitWhat it measures
feeder_peak_load_mvaMVAThe highest load PGE metered at or near the feeder breaker over a three-to-four-month window, typically a summer peak. Apparent power: never converted to MW and not a thermal rating.
net_daytime_minimum_load_mwMWThe lowest daytime load PGE metered at or near the feeder breaker over one year, net of the generation already on the feeder; negative when generation exceeded load. PGE's screening proxy, which its guide says is not hosting capacity.
dg_connected_mwMWAggregate nameplate of the inverter-based distributed generation connected to the feeder, small generation and net metering alike.
dg_queued_mwMWAggregate nameplate of the qualifying facilities in PGE's interconnection queue for the feeder at the status date; net metering excluded.
feeder_voltage_kvkVThe feeder's nominal distribution voltage as PGE lists it.

Coverage at 2026

5 feeders
One inventory year, so there is no range. Counts are feeders, not quantities.
MeasureWith a valueWithout a valueNot applicable
peak loadMVA500
net daytime minimum loadMW500
connectedMW500
queuedMW500
voltagekV500
By feeder_dg_ready1 values
feeder_dg_readyfeederspeak load: with a valuenet daytime minimum load: with a valueconnected: with a valuequeued: with a valuevoltage: with a value
Y550 without · 0 not applicable50 without · 0 not applicable50 without · 0 not applicable50 without · 0 not applicable50 without · 0 not applicable
By transformer_dg_ready1 values
transformer_dg_readyfeederspeak load: with a valuenet daytime minimum load: with a valueconnected: with a valuequeued: with a valuevoltage: with a value
Y550 without · 0 not applicable50 without · 0 not applicable50 without · 0 not applicable50 without · 0 not applicable50 without · 0 not applicable
By generation_limited1 values
generation_limitedfeederspeak load: with a valuenet daytime minimum load: with a valueconnected: with a valuequeued: with a valuevoltage: with a value
N550 without · 0 not applicable50 without · 0 not applicable50 without · 0 not applicable50 without · 0 not applicable50 without · 0 not applicable
By scada1 values
scadafeederspeak load: with a valuenet daytime minimum load: with a valueconnected: with a valuequeued: with a valuevoltage: with a value
Y550 without · 0 not applicable50 without · 0 not applicable50 without · 0 not applicable50 without · 0 not applicable50 without · 0 not applicable

What is missing, and why

  • Listed without a reported value · peak loadRows with no value for this measure; published as null, never zero
    0 feeders
  • Listed without a reported value · net daytime minimum loadRows with no value for this measure; published as null, never zero
    0 feeders
  • Listed without a reported value · connectedRows with no value for this measure; published as null, never zero
    0 feeders
  • Listed without a reported value · queuedRows with no value for this measure; published as null, never zero
    0 feeders
  • Listed without a reported value · voltageRows with no value for this measure; published as null, never zero
    0 feeders
  • not_in_reportAvailable hosting capacity. PGE's FAQ says the map and its data do not provide the information needed to quantify it (thermal ratings), so no feeder carries a figure; the table has no such column and none is derived from the minimum load, the queue or a flag.
    Not computedPGE publishes no available hosting capacity (FAQ, January 16, 2026, pages 2–3)
  • In the source, not yet includedFeeders of every other PGE substation. The source selects one substation by design; widening it is a change of the source's where clause, not a gap in PGE's data.
    Not computedthe source's where clause selects one substation

How often it changes

Checked 2026-09-27
Publisher
PGE's FAQ (last updated January 16, 2026): "The map and data elements are updated twice annually." The user guide adds that the queue figures are updated twice a year with the rest of the map, and points to PGE's monthly-updated interconnection queue on OASIS.assets.ctfassets.net/416ywc1laqmd/3LlLM5rmZtTsWFNhlRqy9H/e745be6fd95f034aad42460d18b71847/DG_Evaluation_Map_FAQs_20260116.pdf ↗assets.ctfassets.net/416ywc1laqmd/5asIqOV0gY7u9TzCTcOj4V/ec27dc459e6eea661a18d96729678abe/DG_Evaluation_Map_User_Guide_2026.pdf ↗
Delay
On the checked date the layer was named "PGE Distribution System Data 07-22-2026" and every Brookwood row carried a DG status date of 07/22/2026; the ArcGIS item was last modified August 18, 2026, which is publication metadata, not a measurement date. PGE states no lag between measurement and publication, and the service states no measurement window.services6.arcgis.com/eqsXlDArbs19VWhn/arcgis/rest/services/PGE_Distribution_System_Data/FeatureServer ↗www.arcgis.com/sharing/rest/content/items/5a248009e4264051a8f87ec951c825a8 ↗
This atlas
The layer is not pinned by hash: each release acquires the slice live, archives the bytes with the retrieval time and names the layer under edition, so a new PGE edition is adopted by the next release. An edition that files no feeder under the substation leaves the table empty, and PGE's page then says the substation is not in that edition.services6.arcgis.com/eqsXlDArbs19VWhn/arcgis/rest/services/PGE_Distribution_System_Data/FeatureServer ↗

Checks and corrections

  • keys.pge_dg_screening_unique{"distinct_object_ids":5,"distinct_row_ids":5,"rows":5}
    Passed
  • dg_screening.values_as_published{"differs":[],"features":5,"rows":5}
    Passed
  • dg_screening.rows_readable{"edition":{"data_date":"2026-07-22","data_date_basis":"layer name","layer_name":"PGE Distribution System Data 07-22-2026"},"organization_in_release":true,"status_dates":["2026-07-22"],"status_dates_unparsed":0}
    Passed
  • dg_screening.slice_in_edition{"layer_count":null,"layer_name":"PGE Distribution System Data 07-22-2026","rows":5,"where":"Substation_Name = 'BROOKWOOD'"}
    Passed
  • dg_screening.buffers_in_place{"area_of_use":[-124.17,43.95,-116.47,46.26],"buffers":5,"misplaced":[],"source_crs":"EPSG:2913"}
    Passed
  • dg_screening.buffers_drawn{"buffers":5,"rows":5,"without_buffer":[]}
    Passed

No corrections apply to this dataset in this release. Earlier editions: not available (earlier releases did not retain per-dataset edition comparisons).

Release 20260929T050546Z-51ae0f7d3c78