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Site Access & Topography

The property's road access quality and point-of-interconnection (POI) access are currently Unknown. This is a critical information gap. A preliminary site visit and aerial imagery review are immediately required to assess the quality of existing roads, their ability to support heavy vehicle loads (e.g., for transformer delivery, battery container transport), and the feasibility of constructing new access roads if necessary. Given the property is owned by the Charleston Township Park District, it is likely that existing access roads are designed for public park use, which may not be suitable for industrial-scale BESS equipment without significant upgrades.

Regarding terrain characteristics, with 29.55 acres, and given its likely use as parkland or open space in Coles County, Illinois, the site is generally anticipated to be relatively flat or gently rolling. This would typically be favorable for BESS development, minimizing extensive grading and earthwork costs. However, without specific topographical data, this remains an assumption. Heavy equipment access will be entirely dependent on the verified road quality and any potential internal site obstructions. Any access easements would need to be thoroughly investigated, especially given the public ownership. Developing on parkland often entails public access considerations or restrictions on altering the natural landscape, which could complicate BESS siting and construction.

Environmental Constraints

The FEMA Flood Zone designation for the property is Unknown. This is a critical environmental constraint that must be immediately verified. Siting a BESS within a 100-year floodplain (AE or A zones) would significantly increase project costs due to elevated foundation requirements, floodproofing measures, and potential permitting delays or outright prohibitions. Similarly, the presence of Wetlands is also Unknown. Wetlands identification and delineation are crucial, as they trigger federal (USACE Section 404) and state permitting, often requiring costly mitigation or significant setbacks, which could reduce the developable area.

Positively, the property has No Critical Habitat and No Protected Areas identified, which reduces risks related to endangered species and conservation easements. There are No Pipeline Proximity concerns within approximately 3 miles, which is favorable for safety and avoids complex setback negotiations. The property is also N/A for Chesapeake Bay Critical Area implications, as it is not in Maryland. While there is 1 brownfield/superfund site within ~2 mi, this indicates a nearby site, not the subject property itself. Therefore, the property does not qualify for the IRA brownfield bonus, but it does warrant a review of potential off-site contamination migration pathways during environmental due diligence (Phase I ESA).

Grid Infrastructure & Interconnection

The grid infrastructure presents a mixed bag of excellent proximity but critical unknowns. The Nearest Substation (UNKNOWN122176) is only 0.3 mi away, which is an exceptionally favorable distance for minimizing interconnection costs. However, the Max Voltage is listed as -999999 kV, indicating a critical data gap. Determining the actual voltage class (e.g., 12kV, 34.5kV, 69kV) and available capacity at this substation is paramount. The Nearest Transmission Line is a 138kV line at 0.5 mi, owned by AMEREN ILLINOIS COMPANY. This proximity to a high-voltage transmission line also offers significant optionality.

Given the project's focus on distribution-scale (≤5MW) and utility-scale, and the excellent proximity to both a substation and a 138kV line, the likely interconnection voltage could be either distribution (e.g., 34.5kV or 69kV, if available at the substation) or transmission (138kV). For a ≤5MW project, distribution interconnection is generally preferred for lower complexity and cost, assuming sufficient capacity. However, if the substation voltage is low or capacity is constrained, the 138kV transmission option becomes viable, albeit with potentially higher interconnection costs and a more complex process.

The Interconnecting Utility is Unknown, but given the 138kV line is owned by AMEREN ILLINOIS COMPANY, it is highly probable that Ameren Illinois is the utility. Interconnection costs could range from $500,000 to $2,000,000+, depending heavily on the chosen voltage, required upgrades at the substation or along the transmission line, and the need for new line extensions. The timeline for interconnection studies (Feasibility, System Impact, Facilities) and construction can typically range from 24 to 48 months, with Ameren Illinois having a known, often lengthy, queue process. Identifying the likely feeder configuration (e.g., radial, looped) would require detailed utility data.

Regulatory & Zoning Analysis

The Authority Having Jurisdiction (AHJ) is the Municipality of Charleston. This is a critical point of contact for all local permitting. The zoning information presents a significant conflict: the primary data states "Zoning: Exempt, Government And Historical - Exempt (Full Or Partial) (Code: -)", while Regrid indicates "Zoning (Regrid): R1" (Residential). This discrepancy, coupled with the owner being CHARLESTON TWNSP PARK DIST, is a major red flag.

If the property is truly "Exempt" due to its governmental/park ownership, it means it's exempt from standard zoning for its primary purpose (parkland). A BESS facility, being a commercial/industrial use, would likely not fall under this exemption and would require a specific zoning designation or approval. If the underlying zoning is R1 (Residential), BESS compatibility is extremely low. A BESS project would almost certainly not be a by-right use. The most likely permitting pathway would be a Conditional Use Permit (CUP) or Special Use Permit (SUP), or potentially a variance, which are discretionary processes requiring extensive public hearings, neighbor outreach, and often come with significant conditions or opposition.

Known setback requirements for BESS in this jurisdiction are Unknown but would be critical to determine early on, especially if located in or adjacent to residential zones. Illinois does have some state-level guidance for BESS, but local zoning ordinances typically dictate specific siting requirements. The risk of a moratorium or restriction on BESS development, particularly in residential or parkland areas, is elevated given the potential for public opposition. The fundamental issue of developing a commercial energy facility on public parkland owned by a Park District will likely be the most significant regulatory hurdle, potentially requiring a land swap, sale, or long-term lease agreement that aligns with the Park District's charter and public interest.

IRA/ITC Incentive Analysis

The property's eligibility for Investment Tax Credit (ITC) adders under the Inflation Reduction Act (IRA) provides some financial upside, though not maximal.

• Opportunity Zone Eligibility: No. This means the project will not qualify for the additional 10% ITC adder associated with Opportunity Zones.
• Energy Community Status: Yes — Fossil Fuel Employment (FFE Area). This is a significant positive, qualifying the project for a 10% ITC adder. This adder is designed to incentivize investment in communities historically reliant on fossil fuel industries.
• Low-Income Community Qualification: No. The project does not qualify for the additional 10% or 20% ITC adder for Low-Income Communities.

Based on this analysis, the potential cumulative ITC adder percentage for this site is 10%, derived solely from its Energy Community status. While not the highest possible, this 10% adder is a valuable incentive that improves project economics.

BESS Score & Rationale

BESS Suitability Score: 45/100

• Location (10/20): The site benefits from excellent proximity to grid infrastructure (substation 0.3 mi, transmission 0.5 mi). However, the ownership by a Park District and the unknown road access quality significantly detract from this score. Developing on parkland presents inherent challenges for land acquisition and public perception.
• Grid Access (15/25): Outstanding proximity to both a substation (0.3 mi) and a 138kV transmission line (0.5 mi) is a major advantage, suggesting potentially lower interconnection costs. However, the critical unknown substation voltage and capacity, along with the unidentified interconnecting utility, introduce substantial uncertainty and risk.
• Environmental (8/15): Positive aspects include no critical habitat, protected areas, or pipeline proximity. However, the unknown FEMA flood zone and wetlands presence are significant unmitigated risks that could severely impact buildability and cost.
• Regulatory (5/15): This is the weakest category. The conflicting zoning information (Exempt vs. R1) and, more critically, the ownership by a Park District, create immense regulatory and permitting hurdles. A BESS project is highly unlikely to be a by-right use, necessitating a complex and potentially contentious CUP/SUP process or even a zoning amendment.
• Incentives (7/15): The site qualifies for the 10% Energy Community ITC adder, which is a positive. However, it misses out on Opportunity Zone and Low-Income Community adders, limiting the total incentive potential.
• Buildability (5/10): The total acreage (29.55 acres) is sufficient for a distribution-scale BESS. However,