Project Avista-Q59 — Project Summary

Queue ID
Avista-Q59
Capacity
60 MW
Technology
Solar+Battery
Status
suspended
Location
Adams, WA
Region
West
Developer
IA Status
Suspended

Avista-Q59

Avista-Q59BetaSuspendedSolarBatteryAvistaLBNL

60 MW hybrid in Adams, WA

BA: BPATNERC: WECCRC: RCW

60 MW

Capacity

1

Components

Solar

In Queue

Suspended

IA Phase

Interconnection

Study Phase

Serial

Suspended38%
Queue Entry

Interconnection request submitted to ISO/RTO

Interconnection Study

Project undergoes interconnection studies to assess grid impact.

Typical: 18–36 months

Interconnection Agreement

Interconnection agreement not yet executed

Typical: 30–60 days (negotiation)

Commercial Operation

Commercial operation date not yet determined

About

Avista-Q59 is a proposed 60 MW hybrid solar and battery energy storage project located in Adams County, Washington. The project consists of a 60 MW solar component. It is interconnected to the Avista Utilities grid at the Roxboro 115kV Station.

The project is listed in the Avista Utilities interconnection queue as Q59. The interconnection agreement has been executed. The proposed commercial operation date is September 1, 2027.

Generated from interconnection queue and public data sources

Development Risk

Realization risk through commissioning — schedule slippage, construction cost overrun, and COD probability vs the stated window. The diligence view that determines whether the project comes online when promised. Powered by InfraSure's development-stage modeling stack.

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See the full development-risk decomposition for this project.

P(COD within window)
Cost overrun probability
Schedule slippage vs plan
Project Details

State

WA

County

Adams

Grid Region

Mountain West

Market

Developer

Utility

Avista Utilities

Entity

Avista

Service Type

NRIS

Point of Interconnection

Roxboro 115kV Station

Data Source

LBNL

Risk Analytics

Composite operating-phase risk view — what this asset's risk profile will look like once it commissions. Climate hazards across its operating life, expected generation variability, and offtake counterparty exposure, decomposed into a single decision-grade score. Powered by InfraRisk.

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See the full risk decomposition + scenarios for this project.

Climate hazards (8+)
Generation variability (P10/P50/P90)
Offtake + transmission counterparty
Generation Forecast

Forward generation outlook — first-year production estimate and 10-year P50 trajectory, with curtailment risk decomposed by congestion zone and ranges (P10/P50/P90) across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.

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See the full forecast + scenario decomposition for this project.

10-year P50 forecast
Curtailment risk by node
Weather + policy scenarios
Financial Forecast

Forward revenue, first-year DSCR, and construction cost overrun exposure — what determines whether the deal clears its covenants once online. Projected across price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.

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See the full revenue + DSCR projection for this project.

First-year DSCR
Cost overrun probability
Price + demand scenarios
Market Context
Approximate
ISO / RTO
MOUNTAIN_WEST
Trading Hub
MID-C
Hub Confidence
UNKNOWN

This project's market context is estimated from its Point of Interconnection. Hub and node assignments are approximate and based on geographic inference from the POI substation name.

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Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.