Complete civil packages for battery energy storage in Wyoming County, New York: pad subgrade and mass grading, foundation excavation, access and crane pads, collection trenching, ductbank, SWPPP, and substation civil.
Backwell is a civil site work general contractor serving battery energy storage developers and EPCs building in Wyoming County, New York. We contract the complete civil package under one agreement, with Backwell superintendents and lead operators on site.
Wyoming County is the wind capital of western New York and it is now drawing the largest standalone battery proposal in the region. Sawhall Energy Storage LLC entered the NYISO cluster queue with Swiss Valley Energy Storage at 300 MW and 1,200 MWh, four hour duration, interconnecting at the Wethersfield 230 kV substation with a proposed commercial operation date in 2029. That project sits on top of an existing 230 kV network built out for wind: High Sheldon Windfarm at 112.5 MW, Noble Wethersfield at 126 MW, Stony Creek Wind Farm at 92.8 MW and the Bliss windfields are all in service, and Orangeville Energy Storage has been operating a 20 MW battery at Stony Creek 230 kV since 2021, which is the only operating utility scale battery in the region. Valcour is advancing repowering applications for Bliss and Wethersfield through the Office of Renewable Energy Siting, and Good Ole 77 Energy LLC entered a 199 MW wind position at High Sheldon 230 kV in 2026.
Publicly reported battery energy storage in and around Wyoming County:
Project details come from public filings and reporting and are listed to show where the work is. Backwell is not affiliated with these projects or their developers.
Wyoming County sits on the northern edge of the Appalachian Plateau, a dissected upland of broad hilltops at sixteen hundred to nineteen hundred feet cut by the Genesee, Tonawanda and Wiscoy valleys. Unlike the lake plain counties to the north, the soils here are acid till derived from sandstone, siltstone and shale rather than limestone. The dominant series are Lordstown, Mardin, Volusia, Langford and Erie, and the defining feature is a dense fragipan in the Mardin, Volusia, Langford and Erie soils, typically fourteen to twenty four inches below the surface, which perches water above it. Lordstown soils are shallow to moderately deep over sandstone and siltstone bedrock, which on the hilltops can sit within two to four feet of the surface. Valley floors carry Chenango and Tioga alluvial and outwash soils. Frost design depth is forty two inches, and the upland sees heavy snowfall and long frost duration.
The fragipan is the single most important civil fact in Wyoming County. Water sits on top of it, so a battery enclosure pad built directly on stripped Mardin, Volusia or Erie subgrade will have saturated bearing conditions every spring. The correct approach is to cut through or break the pan beneath the pad footprint, place a free draining stone section, and run underdrains to a positive outlet. Access roads on this ground need a full stone section with geotextile and deep ditching, and they will rut badly if built and used before the pan drainage is in. On the hilltops where Lordstown soils are shallow, sandstone and siltstone bedrock will be hit in cable trenches and deep foundations, so rock excavation belongs in the estimate. Long, steep haul routes and heavy winter snow make temporary road construction and winter maintenance a real line item.
Concrete is placed by our subcontractor partners under the same contract, so the foundations follow the earthwork without a separate award. We price the civil package as one scope under one contract, which gives the EPC a single point of responsibility for the civil critical path instead of managing separate clearing, earthwork, and underground subcontracts.
Battery storage in New York is governed by Section 1207 of the 2025 Fire Code of New York State, which the State Fire Prevention and Building Code Council adopted on July 25, 2025 with an effective date of December 31, 2025. Section 1207 carries material based on the 2023 edition of NFPA 855 and renumbers what the 2020 code placed at Section 1206. Systems must be listed to UL 9540. Large scale fire testing under UL 9540A, reported to and approved by the fire code official, is what permits reduced separation distances and quantities above the table limits, and a hazard mitigation analysis is required to exceed the maximum allowable quantity. Outdoor installations carry a ten foot clearance to lot lines, public ways, buildings, stored combustibles, and other exposure hazards, with ten feet of combustible vegetation cleared on each side. New York added a mandatory peer review at Section 1207.12 for systems above the Table 1207.5 quantities, covering the site plan, the emergency operations plan, and the UL 9540A report. Those provisions fix pad layout and access road geometry before any earthwork is priced.
Battery storage siting in New York runs on the Fire Code of New York State, which adopts the International Fire Code provisions for stationary energy storage, together with NFPA 855 and the UL 9540A test reporting the authority having jurisdiction will ask for. The civil consequences are set early and they are ours to build.
We build to the approved civil drawings and the fire code commentary that comes with the permit. We do not stamp the design.
Local law. Wyoming County has no county wide battery ordinance and no Wyoming County municipality appears in the statewide battery moratorium database as of the August 2026 update. The towns here have two decades of experience permitting and hosting large wind facilities, and battery projects below the 94-c threshold are reviewed through town zoning, site plan and special use permit procedures.
Backwell superintendents, project managers, and lead operators run every site. We mobilize company equipment for the core scope and scale each project with leased production fleets, qualified regional subcontractors, and agency-placed field staff, all under Backwell supervision and a single contract.
Contractor licensing. New York does not issue a statewide general contractor license for commercial construction. Licensing is handled locally, so individual cities, towns, and counties may require contractor registration or a local license, and a few trades are licensed at the state level, including asbestos handling and crane operation. Separately, contractors and subcontractors performing public work, and work covered by Article 8 of the Labor Law, must be registered with the New York State Department of Labor under its statewide contractor registry, which took effect December 30, 2024. Owners, EPCs, and integrators on battery storage projects will typically ask for that DOL registration number along with insurance and, where required, bonding.
Construction stormwater. SPDES General Permit for Stormwater Discharges from Construction Activity, permit number GP-0-25-001, issued by the New York State Department of Environmental Conservation. It took effect January 29, 2025, replacing GP-0-20-001, and runs through January 28, 2030. Coverage is triggered at one acre of soil disturbance, or less if part of a larger common plan, and requires a Notice of Intent plus a SWPPP prepared and implemented under the DEC design manual. Coverage under the prior permit did not carry over automatically, so active sites had to refile. Backwell carries the SWPPP scope, installs and maintains the controls, keeps the inspection log, and closes the permit out with final stabilization.
Prevailing wage. Standalone battery storage sits outside New York Labor Law Section 224-d. That section applies to a covered renewable energy system as defined in Public Service Law Section 66-p, and that definition lists generating technologies only, so energy storage is not included and Section 224-d contains no storage clause. Prevailing wage still reaches many storage projects by other routes. Labor Law Section 224-a expressly excludes an energy storage system with a capacity equal to or under five megawatts alternating current, which means a larger storage system on a privately contracted project that meets the public funds and cost tests can be covered. The Public Service Commission order of June 20, 2024 establishing the updated energy storage goal states that projects of one megawatt alternating current and larger will be subject to prevailing wage requirements, so incentivized projects carry it as a program condition rather than by statute. Storage co-located with a covered renewable generator follows that generator. Separately, contractors and subcontractors performing public work, and work covered by Article 8 of the Labor Law, must be registered with the New York State Department of Labor under the statewide contractor registry effective December 30, 2024. The applicable trigger should be confirmed project by project. Backwell produces certified payroll, pays the applicable wage determination, and supports apprenticeship labor-hour compliance.
All New York battery storage civil work or the New York solar civil cluster.
Send plans, a scope of work, and the schedule through the form below or call (315) 400-2654. We review the civil package, walk the site if it is at that stage, and return a scoped proposal with a schedule of values, stated fill allowances, and unit rates for overages. A one-page capability statement is available for prequalification files.
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