TO: Sunland America Corp. Development Committee
FROM: Senior BESS Site Evaluation Analyst
DATE: October 26, 2023
SUBJECT: Comprehensive Site Diligence Analysis for 1480 Renaissance Dr, Park Ridge, IL (APN: 09221100050000)
The subject property, located at 1480 Renaissance Drive in a developed office park in Park Ridge, IL, benefits from excellent existing infrastructure. Access is provided via public, paved roads which appear to be well-maintained and of sufficient width to accommodate heavy construction traffic. A preliminary review of aerial and street-level imagery indicates that the local road network, including Renaissance Drive, can likely support the delivery of large, heavy equipment such as 53-foot battery containers, medium-voltage transformers, and cranes. However, a formal route survey is required to confirm turning radii, vertical clearances, and any local bridge weight limitations between the nearest interstate (I-294) and the site.
The topography in this region of Cook County is characteristically flat, and the site itself appears to be graded and level, consistent with its current use as part of a commercial office development. This is a significant advantage, as it will minimize civil engineering costs associated with grading and site preparation. The primary concern regarding access is not the physical road network but potential legal encumbrances. As a parcel within a larger commercial development, there are likely existing access easements, utility easements, and potentially restrictive covenants that could dictate where equipment can be placed or how access is managed. A preliminary title report is an immediate priority to identify any such constraints that could impact the BESS layout and construction access.
The environmental profile of this site presents both significant data gaps and potential opportunities. The FEMA Flood Zone and Wetlands statuses are both listed as "Unknown," which represent critical, potentially fatal flaws.
Grid access is the single largest unknown and highest risk for this site. The provided data on the nearest substation and distribution feeder is completely absent. While a 138kV transmission line owned by Commonwealth Edison (ComEd) is located 1.5 miles away, interconnecting a ≤5MW BESS at transmission level over this distance would be prohibitively expensive (likely >$5M) and complex. Therefore, a distribution-level interconnection is the only viable path.
The recommended interconnection voltage would be at ComEd's local distribution level, likely 12.47kV or 34.5kV. The immediate priority is to identify the nearest 3-phase distribution feeder with sufficient available capacity. A desktop review of satellite imagery suggests robust electrical infrastructure in the area serving the dense commercial load, but the exact feeder route and substation source are unknown. Interconnection costs are impossible to estimate accurately without this information but can be broadly framed: a tap on an adjacent feeder could be in the $750k - $1.5M range, while a new feeder exit from a substation 0.5 miles away could exceed $2M.
The interconnecting utility, ComEd, is within the PJM RTO. The PJM interconnection queue is notoriously backlogged, and timelines from application to commercial operation can frequently exceed 36 months. This schedule risk must be factored into all project modeling. The first step is to submit a pre-application to ComEd to get basic information on the local system, which will inform a more detailed feasibility study and subsequent formal interconnection request.
The Authority Having Jurisdiction (AHJ) is the City of Park Ridge. The property is zoned "O" (Office), which is unlikely to