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1.5 MW Batteries (1 MW) + Solar Photovoltaic (1 MW) operating in Snohomish, WA
1.5 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2019
Operating Since
Coordinates
48.1560, -122.1437
County
Snohomish, WA
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | PUD No 1 of Snohomish County - (WA) | — | — |
| Owner(s) | PUD No 1 of Snohomish County | — | — |
| Status | Operating | — | — |
The Arlington Microgrid is a hybrid power plant located in Snohomish County, Washington. It is owned and operated by PUD No 1 of Snohomish County. The plant began operating in 2019 and has a total capacity of 1.5 MW, utilizing both solar photovoltaic and battery storage technologies. The primary fuel type is listed as MWH, indicating the plant draws power from the grid to charge its batteries. The battery energy storage system (BESS) has a capacity of 1.4 MWh and a duration of 1.4 hours, employing lithium-ion battery chemistry. The solar array uses a fixed tilt tracking system.
The Arlington Microgrid operates within the Bonneville Power Administration balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. In its latest year of operation, the plant generated 532 MWh, resulting in a capacity factor of 4.0%. The plant is ranked 10th out of 10 similar facilities in Washington state and 1158th out of 1205 nationally. The facility consists of two generators.
Generated from EIA, GEM, and public data sources
Grid Region
Pacific Northwest
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
Bonneville Power Administration (BPAT)
Grid Voltage
12.47 kV
Regulatory Status
RE — Regulated
Entity Type
Political Subdivision
Sector
Electric Utility
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
9 MWh
Net Discharge
532 MWh
Annual Net Energy
4.0%
Capacity Factor
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
Forward-looking generation outlook with probabilistic ranges across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
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2019
$2,973/kW
Est. Construction Cost
Total estimated cost: $4.5M
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
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This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
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