Recorded Documents

Every document listed here was retrieved from the King County Recorder’s Office (LandmarkWeb) in March 2026. Documents recorded before approximately 1991 are not available through LandmarkWeb and have not yet been retrieved; these are noted where we know they exist from references in later documents. If you have access to any of these older records, please contact us.

Key documents

These are the most significant recorded instruments for understanding the BESS project’s land control, constraints, and interconnection challenges.

Jupiter Power land agreements:

PSE corridor, annexation, and interconnection constraints:

Corporate structure: Jupiter Power’s project entity is Cascadia Ridge Resiliency LLC (1108 Lavaca St, Austin TX), a Delaware LLC originally formed as “Snoqualmie Energy Storage LLC” in December 2023 and renamed in June 2025. The 2024 agreements were recorded under the original name (with Accelergen Development LLC as sole member); the 2025 agreements use the current name.

All parcels

Jupiter Power parcels

PSE corridor parcels

PSE owns five parcels forming the transmission corridor adjacent to the BESS site, including the Mt. Si substation. The City of Snoqualmie holds perpetual environmental covenants across all of these parcels (see key documents above). No Jupiter Power agreements are recorded on any PSE parcel; access is likely governed by the PSE tolling agreement (UTC Docket UE-240532).

The Pre-Annexation Development Agreement (PADA, Rec# 20110202001508) is the foundational document governing these parcels. It was executed between PSE and the City of Snoqualmie in 2010 to authorize annexation and development of the Mount Si Substation. The full 118-page document includes the agreement text, 14 exhibits (maps, legal descriptions, engineering plans), the Covenant and Grant of Easement, and detailed vegetation management rules. Key provisions:

• The Substation Area is limited to “electrical substation, transmission and distribution lines and related appurtenances. No residential, commercial, or other development.” (Section 4.1)
• Parcel 9102 is designated a “Future Development Area” requiring a full-scope Annexation Implementation Plan (AIP) before any utility connections, short plat, subdivision, or other development. This parcel is explicitly NOT vested to PADA-era standards. These obligations survive the PADA’s expiration (Section 8.3).
• The PAUE (Public Agency or Utility Exception, SMC 19.12.030C) is required for any development altering wetland or stream buffer areas
• Section 6.10 specifically limits parcels 9098 and 9099 to transmission line construction, with King County as the permitting authority
• Infrastructure obligations (SE Douglas Street extension, 12-inch water line, sanitary sewer, trail easement) are conditions of any Future Development Area development
• A Mitigated Determination of Non-Significance (MDNS) was issued February 12, 2010 for the substation and transmission lines. A BESS was not part of this environmental review.
• The Covenant and Grant of Easement (Exhibit 12, recorded as Rec# 20110429001446) creates perpetual environmental restrictions across all five parcels: a 12.95-acre Vegetation Maintenance Area, a no-disturbance Native Growth Protection Area, 3.85 acres of wetland/stream buffers, and a 5.99-acre Perimeter Buffer (Exhibit C). Amendment requires written consent of both PSE and the City. The covenants run with the land and bind all successors and assigns.
• The Wetland Mitigation Plan (Exhibit 13) references the “Proposed Mount Si Substation Wetland Impact Assessment and Mitigation Plan” prepared by AECOM (October 2009, with February 2010 addendum). A copy is available for review at the City of Snoqualmie Planning Department.

Construction access constraint

There are two potential road access routes to the BESS project parcels:

1. Through the PSE transmission corridor. An existing road traverses all five PSE corridor parcels (9099, 9098, 9102, 9091, 9030). It is currently used by residents of the Landgraf parcel (9101) and others for routine vehicle access.
2. Through private residential parcels to 364th Ave SE. Parcel 9039’s legal description includes “plus road easement,” indicating an appurtenant easement across the Short Plat 775062 tracts (parcels 9129, 9130, 9131, 9132) to the east. This private road serves two occupied homes and has been in use since the early 1980s.

Neither route was designed for industrial construction traffic. Each has its own constraints.

PSE corridor route: The existing residential use is lawful; the Covenant’s motor vehicle prohibition (Section II) applies only to the 3.85-acre Wetland/Stream Buffer Area, not the road itself. But the PADA and Covenant impose overlapping restrictions on the corridor parcels that would apply to BESS construction traffic:

• Parcels 9098 and 9099 are limited by the PADA (Section 6.10) to transmission line construction. Heavy equipment and materials transport for a battery storage facility is not transmission line construction.
• Parcel 9102 is designated a “Future Development Area” requiring a full-scope Annexation Implementation Plan before any development. No AIP has been completed.
• The Vegetation Maintenance Area (12.95 acres across the corridor) requires prior written city approval for any vegetation alteration (Covenant Section III). Construction vehicle traffic on unpaved or marginally improved road surfaces through this area would damage vegetation.
• The Dutczak/Landgraf clause (Covenant Section III, paragraph 9) extends the Covenant’s vegetation and environmental protections to PSE’s easement on the Landgraf parcel (9101), which the road also crosses.

Jupiter Power cannot route BESS construction traffic through the PSE corridor without addressing each of these restrictions. The City of Snoqualmie is a party to both the PADA and the Covenant, and has standing to enforce their terms by injunction.

364th Ave SE route: The road easement appurtenant to parcel 9039 predates Jupiter Power’s involvement and conveys with the land. The scope of this easement (whether it permits industrial construction traffic or only residential use) depends on the terms of the original instrument, likely recorded with Short Plat 775062 (Rec# 7710170832, 1977). The private road crosses parcels owned by individual homeowners who are not parties to the BESS project.

No public document from Jupiter Power addresses how construction access to the site would work.