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Site Diligence Analysis: Henderson County, IL BESS Project

As a senior BESS site evaluation analyst for Sunland America Corp, I have performed a comprehensive diligence analysis for the property located in Henderson County, IL. This analysis focuses on distribution-scale (≤5MW) and utility-scale project viability, leveraging the provided property data to identify opportunities, risks, and actionable next steps.

1. Site Access & Topography

• Road Access Quality: The property benefits from Public Road Access, which is a significant advantage. This ensures straightforward and cost-effective transportation of construction materials, heavy equipment, and personnel throughout the project lifecycle. No private road easements or complex access agreements appear to be required for primary site entry.
• Equipment Delivery Feasibility: Given public road access and the "Great" buildability rating, heavy equipment delivery, including large transformers, battery containers, and other BESS components, is highly feasible. The public road infrastructure is expected to support the necessary load capacities.
• Terrain Characteristics: The zoning as "Agricultural/Rural - Farm" and the "Great" buildability rating, coupled with 13.9 buildable acres out of 17.8 total, strongly suggest a relatively flat or gently sloping terrain. This is ideal for BESS development, minimizing earthwork, grading costs, and complex foundation requirements.
• Heavy Equipment Access: With public road access and favorable topography, heavy equipment should have no issues accessing the site and maneuvering within the 13.9 buildable acres. The "POI Onsite" further simplifies internal site logistics by eliminating the need for extensive off-site line extensions or access roads to the interconnection point.
• Access Easement Concerns: No specific access easement concerns are noted in the provided data. However, a detailed title search and survey will be critical to confirm no existing encumbrances or required easements for utility lines or neighboring properties that could impact the BESS layout or construction.

2. Environmental Constraints

• FEMA Flood Zone Designation: The FEMA Flood Zone is Unknown. This is a critical data gap that requires immediate investigation. If the site is located within a 100-year (Zone A) or 500-year (Zone X500) floodplain, it could significantly impact project design, requiring costly floodproofing measures, elevated equipment pads, or potentially rendering the site unbuildable for BESS due to regulatory restrictions and insurance implications.
• Wetlands Presence: The presence of Wetlands is Unknown. This is another major environmental unknown. A professional wetland delineation study is essential. The presence of jurisdictional wetlands could lead to significant permitting delays, require costly mitigation, or reduce the effective buildable area, potentially impacting project economics and layout.
• Critical Habitat / Endangered Species Risk: The data indicates No Critical Habitat and No Protected Areas. This is a positive finding, significantly reducing the risk of encountering endangered species issues or requiring extensive biological surveys and mitigation plans, which can be costly and time-consuming.
• Brownfield/Superfund Status: The data states None within ~2 miles for Brownfield/Superfund sites. This indicates a low risk of site contamination, which is beneficial for development. However, it also means the project will not qualify for the IRA Brownfield bonus adder, which could have provided an additional 10% ITC.
• Chesapeake Bay Critical Area: The property is designated as N/A (non-MD), meaning it is not within the Chesapeake Bay Critical Area. Therefore, there are no specific regulatory implications or additional permitting requirements related to this designation.
• Pipeline Proximity Safety: There are None within ~3 miles. This is excellent for safety and site planning. Proximity to high-pressure gas pipelines typically requires significant setbacks, specialized safety studies, and coordination with pipeline operators, which can add complexity and cost. The absence of nearby pipelines simplifies the development process.

3. Grid Infrastructure & Interconnection

• Nearest Substation: The STRONGHURST substation is only 0.584 miles away. This is an exceptionally close proximity, which will significantly reduce line extension costs and construction timelines for interconnection. The "Max Voltage: 0.000 kV kV" for the substation is likely a data entry error, but given the IX Voltage, it's clearly a distribution substation.
• Transmission Line Proximity: There are None within ~3 miles. This confirms that a distribution-level interconnection is the only viable path for this project.
• Recommended Interconnection Voltage: The specified IX Voltage is 12.9 kV. This is a standard distribution voltage, confirming that the project will interconnect at the distribution level. This is suitable for a distribution-scale BESS project (≤5MW).
• Estimated Interconnection Cost Range and Timeline: Given the very short distance to the substation (0.584 miles), line extension costs will be minimal, likely in the range of $100,000 - $300,000. However, substation upgrades, if required for a 5MW BESS, could add significantly to the cost. A preliminary estimate for total interconnection costs (including studies, upgrades, and line extension) for a 5MW project could range from $500,000 to $2,000,000. The timeline for interconnection studies, utility approvals, and construction typically ranges from 18 to 36 months, depending on the utility's queue and required upgrades.
• Utility-Specific IX Process and Typical Queue Times: The Interconnecting Utility GUID (80f1ff7c-2f2d-46a7-9e60-83245c5607db) needs to be resolved to an actual utility name (e.g., Ameren Illinois, ComEd, or a local co-op). This is crucial