Data center profile · 578 Robinson Road, Greer, Spartanburg County, South Carolina

Overwatch Resilience GSP (Greer)

Overwatch Capital's planned 100,000 sq ft powered shell in Greer, South Carolina, listed for 2027 under gas-power partnership with Idemitsu; no county or utility filing.

Planned, no filings. A directory lists Overwatch Capital's Greer site as a planned 100,000 sq ft powered shell for 2027, but Overwatch's announced 2026 starts are elsewhere. No county filing, approval, utility filing or MW figure for the site has been found.
~100,000 sq ft
Tier III hardened powered shell
directory listing
200 acres
lot size
directory listing
2027
planned year in a directory
Overwatch's announced 2026 starts are in Texas and Ohio
Not published
site power in MW
the 1 GW in coverage is a ten-state partnership figure
OperatorOverwatch Capital (developer)
CustomerNone named
First building in serviceOur estimate: 2029 or later (no dated power path yet).
Next stepNone published
Power

Power and the grid

Sources on record, size not disclosed

Getting on the grid

Permits

Permits checklist

2 checked, nothing on file

Approvals a campus like this normally needs, and what we found.

Risks

What could slow it down

Timeline

What happened, and what is due

SitePaper trailConstructionPowerPermitsMoneyLegalUpcoming
  1. Nov. 20, 2025
    Power Overwatch and Idemitsu announce a ten-state partnership for gas-powered AI data centers, including South Carolina Company · Oct. 2026
  2. Nov. 20, 2025
    Site Overwatch names its 2026 starts as Dallas-Fort Worth and Columbus, Ohio, not Greer Company · Nov. 2025
  3. 2027
    Site Planned year for the powered shell, per a directory Dataset · Nov. 2025
The buildings

Specs

200 acres lot at 578 Robinson Road (directory). Dataset · Nov. 2025

Who is involved

Owners, partners and builders

Developer
  • Overwatch Capital: developer
Partner
  • Idemitsu Kosan: investor in Overwatch and gas supplier across the ten-state program
Still unknown

Open questions

Where this comes from

42 records from 9 documents

Drawn from company statements, public and commercial datasets, news reports and utility regulator dockets, each kept with its date and source. The bar shows documents by type.

Company 4Dataset 2News report 2Utility regulator 1
Evidence

Every quote behind this page

Grade key: A = the primary record itself (permit, filing, exhibit) · B = a dated official statement · C = news reporting. Map distances are our own measurements on OpenStreetMap and carry no grade. Allegations in lawsuits are marked as such in the quotes.

Power (16)
  • NorthMark Strategies / Valara Holdings' Spartanburg project (former Kohler plant, South Pine Street; about 457 MW of behind-the-meter gas generation; SC PSC Docket No. 2026-158-E, in which the PSC unanimously ruled on Au
    “Valara's contemplated high-performance computing center (the “HPCC”) is a private, behind-the-meter facility intended to generate electricity solely for its own operations.”
    Utility regulator · Aug. 2026 · grade A
  • PORTFOLIO-LEVEL ONLY (not this campus's capacity): Overwatch Capital / Idemitsu Nov 2025 partnership - Idemitsu invests in Overwatch and supplies firm natural gas to on-site generation supporting up to 1 GW across ten U.
    “Idemitsu will supply natural gas to on-site power generation systems capable of providing up to 1 gigawatt (GW) of natural gas”
    Company · Oct. 2026 · grade B
  • Overwatch's Resilience Series design pairs on-site natural gas generation with battery storage in 'always-on' microgrids, with dual private-grid and grid-supplied models. No site design, generation size, interconnection
    “The combination of natural gas and solar power generation, coupled with advanced battery energy storage systems ensure N+1 redundancy for our data center customers.”
    Company · Oct. 2026 · grade B
  • Design model (unsized for this site): Overwatch's SIDE Platform develops AI-ready data centers powered by a mix of natural gas, renewables and advanced battery storage. No site design, generation size or interconnection
    “By developing strategically located, AI-ready data centers powered by a mix of natural gas, renewables, and advanced battery storage, SIDE provides resilient, efficient, and future-proof energy and compute solutions”
    Company · Oct. 2026 · grade B
  • County code: 45083
    “A cornerstone of this initiative is Resilience GSP, a Tier III hardened powered shell located in Greer, South Carolina.”
    Dataset · Nov. 2025 · grade B
  • Project status: planned powered shell targeted 2027
    “this ±100,000 sq ft Tier III hardened powered shell is engineered to support mission-critical, high-density compute environments”
    Dataset · Nov. 2025 · grade B
  • Project identity: Overwatch Capital 'Resilience GSP' - Tier III hardened powered shell in Greer, South Carolina, part of Overwatch's Resilience Series; site listed at 578 Robinson Rd, Greer
    “A cornerstone of this initiative is Resilience GSP, a Tier III hardened powered shell located in Greer, South Carolina.”
    Dataset · Nov. 2025 · grade B
  • Building size: 100000 sq ft
    “this ±100,000 sq ft Tier III hardened powered shell is engineered to support mission-critical, high-density compute environments”
    Dataset · Nov. 2025 · grade B
  • The 1 GW figure attached to Overwatch in coverage is the ten-state Overwatch-Idemitsu partnership's aggregate on-site gas generation capability, not a figure for the Greer site; no site-level MW or MVA is stated in any f
    “The partnership will ensure firm, long-term natural gas supply for tenants across Ohio, Texas, Illinois, Utah, Colorado, Arizona, Georgia, Nevada, South Carolina, and Pennsylvania”
    Company · Nov. 2025 · grade B
  • Overwatch Capital's partnership with Idemitsu Kosan (announced Nov 20, 2025) will supply natural gas to on-site generation systems capable of providing up to 1 GW across ten states, including South Carolina; That 1 GW is
    “Idemitsu will supply natural gas to on-site power generation systems capable of providing up to 1 gigawatt (GW) of natural gas to support the next generation of AI driven data centers.”
    Company · Nov. 2025 · grade B
  • Overwatch's only announced 2026 project starts are Resilience Dallas-Fort Worth and Resilience Columbus (Ohio). No start, tenant, utility filing or construction record has been announced for a Greer/GSP site; the campus
    “Overwatch anticipates starting two projects in 2026, Resilience Dallas–Fort Worth and Resilience Columbus (Ohio).”
    Company · Nov. 2025 · grade B
  • PORTFOLIO ONLY - never campus MW: Overwatch-Idemitsu partnership supplies natural gas to on-site generation capable of up to 1 GW across ten states including South Carolina. No share is allocated to the Greer site in any
    “Through the partnership, Idemitsu will supply natural gas to on-site power generation systems capable of providing up to 1 gigawatt (GW) of natural gas”
    Company · Nov. 2025 · grade B
  • Portfolio power model: firm gas supply powers high-density AI compute through both grid-connected and private-grid models. A model description only - no Duke Energy filing, service agreement or circuit figure for the Gre
    “powering high-density AI compute through both grid-connected and private-grid models.”
    Company · Nov. 2025 · grade B
  • Proximity only; no figure, filing or approval is shared between the two projects.
    “TigerDC's SC1 Data Center (also known as Project Spero) is a next-generation AI infrastructure project located in Spartanburg County, South Carolina.”
    Dataset · Nov. 2025 · grade B
  • Duke Energy intends to apply to the SC PSC to build a 1.4 GW natural gas plant in Anderson County (construction from summer 2027 if approved), citing data center and manufacturing growth in its Carolinas territory. Regio
    “The utility announced its intention to submit an application to the Public Service Commission of South Carolina (PSCSC) for approval for the plant in Anderson County, South Carolina.”
    News report · Oct. 2026 · grade C
  • TigerDC's Project Spero (Tyger River Industrial Park, Spartanburg County; 100 MW phase 1 planned, on-site gas generation) was withdrawn on Feb 27, 2026 after the county denied its PILOT tax deal. A different project from
    “TigerDC announced on Friday (27 February) that it is formally withdrawing Project Spero from consideration in Spartanburg County”
    News report · Feb. 2026 · grade C
Money and contracts (5)
  • strategic partnership / energy supply (portfolio-level): investment + natural gas supply for on-site generation 1 GW (portfolio, ten states)
    “The collaboration includes an investment by Idemitsu into Overwatch Capital and the launch of Idemitsu's nationwide natural gas supply operations in the United States.”
    Company · Nov. 2025 · grade B
  • Overwatch's only announced 2026 project starts are Resilience Dallas-Fort Worth and Resilience Columbus (Ohio). No start, tenant or construction record has been announced for Resilience GSP/Greer.
    “Overwatch anticipates starting two projects in 2026, Resilience Dallas–Fort Worth and Resilience Columbus (Ohio).”
    Company · Nov. 2025 · grade B
  • Project identity: Overwatch Capital 'Resilience GSP' data center project near Greer, Spartanburg County SC, listed as an Overwatch Capital site in BaxTel's facility index; no public site address, county filing, or approv
    “Overwatch Capital and Japanese energy leader Idemitsu have launched a strategic partnership to develop 1 GW of data center capacity across the United States.”
    Dataset · Oct. 2026 · grade C
  • Spartanburg County's recent data center record is hostile to incentives: the council declined TigerDC's Project Spero PILOT and TigerDC withdrew the project on Feb 27, 2026, and the county paused further data center ince
    “TigerDC announced on Friday (27 February) that it is formally withdrawing Project Spero from consideration in Spartanburg County and will pursue alternative sites for the investment.”
    News report · Feb. 2026 · grade C
  • A different project; its 100MW phase and PILOT record do not attach to Resilience GSP, for which no incentive record was found.
    “TigerDC announced on Friday (27 February) that it is formally withdrawing Project Spero from consideration in Spartanburg County”
    News report · Feb. 2026 · grade C
Site and other (3)