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Eagle Rock Partners Colleton County Data Center
Walterboro, Colleton County, SCDeveloper: Eagle Rock PartnersCensus GEOID 45029
- Stage
- Proposed
- Undisclosed in public filings
- Land, Water
Eagle Rock Partners proposed an 860 acre, nine building, 1,000 megawatt data center campus four miles southeast of Walterboro in Colleton County, South Carolina. It is proposed, since December 19, 2025.
How much water it would use and who would use it have not been disclosed.
Tap a pin for the data center, the parcel for its record
- This record: Proposed, ringed
- data center
- Smaller pins: 19 other published records in South Carolina
Details
- this record's location, ringed
- parcel outline, from the county parcel record
- city limits, U.S. Census Bureau, on a town level record
- county boundary
The other pins are the published projects in the same state, each in its stage color. The imagery beneath is the USGS national orthoimagery, public domain, shown so the land around the site can be read.
How to read this page. Every fact links to the source it rests on; a number in brackets is its place in the source list. A figure no source gives reads Not disclosed, and nothing is estimated. Where sources give different figures, each is shown with who gave it, and another source's figure never stands in for the record's own. Entries are added and never overwritten; corrections are listed under What happened.
What is known
Each figure as its source gave it. The number in brackets is its place in the source list.
- Buildings
- 9 buildings zoning application, verified October 27, 2026
- Power it would draw
- 1 GW the developer's figure About 10 percent of New York City's summer peak demand in 2024.
- Who leads it
- Eagle Rock Partners as stated by the source
- Undisclosed in public filings
- Land, Water, Who would use it, Jobs once it runs, Tax each year
The math behind the comparison
- Eagle Rock Partners Colleton County Data Center, capacity: 1,000 MW.
- New York City (NYISO Zone J) summer peak demand, actual, 2024: 10,245 MW (2024).
- 1,000 ÷ 10,245 = 0.1 (MW over MW).
Sources:
- Eagle Rock Partners (opens in a new tab)
- NYISO, 2025 Load and Capacity Data Report (Gold Book) (opens in a new tab), Table I-4a, Baseline Summer Non-Coincident Peak Demand, Historical and Forecast, page 26, Zone J, 2024 row (2024)
A comparison is arithmetic on two published rows and is never a new fact (how comparisons are made).
Every field, with who said it and when (Researcher view)
Impact figures
| Field | Value | Who says so | Source | Last verified |
|---|---|---|---|---|
| How much power it needs | 1 GW | the developer's figure | colletoncounty.org (opens in a new tab) | October 27, 2026 |
| How much water it would use | ||||
| How loud it would be | ||||
| Jobs once it runs | ||||
| Tax it would pay each year |
The record's fields
| Field | Value | Who says so | Source | Last verified |
|---|---|---|---|---|
| Who is building it | Eagle Rock Partners | as stated by the source | October 27, 2026 | |
| Who is constructing it | ||||
| How much land | ||||
| Buildings | 9 buildings | zoning application, verified October 27, 2026 | colletoncounty.org (opens in a new tab) | October 27, 2026 |
| Where its power comes from | ||||
| Grid connection | ||||
| How it is cooled |
How much power it needs, also reported: 1 GW, 2026 (Walterboro Live (opens in a new tab): The ordinance allows data centers to be built on Mount Carmel Road and potentially a 1 gigawatt facility using electricity equivalent to 1 million homes.) .
A blank value cell means not disclosed by any source on file; a blank basis cell means the source gave the figure without saying on what basis.
The developer's figure is what the company said; what a permit allows is the ceiling a permit sets; measured means observed. Water is in gallons a day or a year, whichever the source stated; a tax claim given as a range shows both ends, each linked to the source that gave it.
Still not public, and where it would show up
The record adds each the day a source gives it. Why these documents.
- Water use A state water right filing or a water supply agreement.
- Who would use it A lease announcement or a tenant named in a filing.
- Jobs and tax An incentive agreement, a county's economic development filing or a fiscal note.
What was decided
Acts of Colleton County and Walterboro about data centers, on the record with their source. A rule about the area is not a decision about this record.
| Date | Who | Decision | Source |
|---|---|---|---|
| Colleton County | Colleton County and Fairfield County are considering similar data center moratoriums | southcarolinapublicradio.org (opens in a new tab) | |
| Colleton County | Miles Crosby and another resident sued to block a proposed 859 acre data center campus in Colleton County South Carolina | latimes.com (opens in a new tab) | |
| Colleton County | Colleton County Council unanimously approved Digital Infrastructure Overlay ordinance on September 14, 2026, allowing data centers in designated zones after having a moratorium. | walterborolive.com (opens in a new tab) | |
| Colleton County | Developments under the overlay would also need at least 300 acres of land to be approved. | live5news.com (opens in a new tab) | |
| Colleton County | It also requires data centers to use closed loop water or air cooled cooling systems. | live5news.com (opens in a new tab) | |
| Colleton County | The new overlay does set limits: a 65 decibel noise cap and 200 foot buffer setbacks. | live5news.com (opens in a new tab) |
4 earlier decisions on the county's rows
| Date | Who | Decision | Source |
|---|---|---|---|
| Colleton County | The council passed a six month moratorium on data centers back in July. But that moratorium is now partially repealed and no longer applies west of Interstate 95, or in areas already zoned industrial with this overlay. | live5news.com (opens in a new tab) | |
| Colleton County | County Council voted unanimously to approve a controversial zoning change that opens the door to data centers across much of the county's rural land, through a new Digital Infrastructure Overlay District. | live5news.com (opens in a new tab) | |
| Colleton County | Colleton County Planning Commission and Council approved first reading on August 10, 2026 of ordinance for digital infrastructure overlay related to data centers | blufftontoday.com (opens in a new tab) | |
| Colleton County | Colleton County Council approved six month moratorium on data centers in early July 2026 | blufftontoday.com (opens in a new tab) |
What happened
-
· Status: proposed (content date)
Eagle Rock Partners proposes a 860 acre, nine building, 1,000 megawatt data center campus four miles southeast of Walterboro in Colleton County, requiring a zoning exception and drawing community opposition over water and power concerns.
The site
The pin is the site. The shaded outline is the parcel, from the county's own parcel record.
- Where
- Ritter Road and ACE Basin Highway, Walterboro, SC 29488, Walterboro, Colleton County, South Carolina [source] (opens in a new tab)
- How exactly it is located
- Exact, on the parcel
- The parcel
- No parcel outline in the public record
- Nearest homes
- Not computed for a record placed at a place center
- Nearest records
- Google Dorchester County data center, 22 mi
- Hilton Head Area Data Centers, 30 mi
- DartPoints Charleston Data Center (CHS1), 31 mi
- Google Berkeley County data center, 42 mi
- Meta Aiken Data Center, 79 mi
Comparisons
2 metrics with more than one figure
Capacity at full buildout
2 figures, 2 sources1 GW Developer's figure
1 GW Reported
Show each source's words
- 1 GW, Walterboro Live: The ordinance allows data centers to be built on Mount Carmel Road and potentially a 1 gigawatt facility using electricity equivalent to 1 million homes.
Project footprint
1 figure, 1 source859 acres Reported
Show each source's words
- 859 acres, latimes.com: Colleton County South Carolina data center proposal would have been 859 acres
Keep going
The county Colleton County 1 project on the record. A pause on new data centers is on the record. The state Data centers in South Carolina Every South Carolina project, the rules on the record and what comes next. Nearest proposal Google Dorchester County data center Ridgeville, Dorchester County, 22 mi away · Being built
Know when Eagle Rock Partners Colleton County Data Center changes.Follow this project
Questions about this project
7 questions answered from the record
How big is Eagle Rock Partners Colleton County Data Center?
-
The record has 2 measures of its size: 1 GW (the developer's figure, colletoncounty.org (opens in a new tab)) and 9 buildings (zoning application, verified October 27, 2026, colletoncounty.org (opens in a new tab)). Its acreage is not disclosed.
Who is building Eagle Rock Partners Colleton County Data Center?
-
Eagle Rock Partners is the developer. No construction contractor is named on the record yet.
Who will use Eagle Rock Partners Colleton County Data Center?
-
Not disclosed. No source on file names a tenant, says whether the site is single or multi tenant, or states what it is for. The record keeps the use as not disclosed until one does; see Who it serves.
How much power and water does Eagle Rock Partners Colleton County Data Center say it needs?
-
Power: 1 GW (the developer's figure, colletoncounty.org (opens in a new tab)). Water: not disclosed by any source on file.
Where does Eagle Rock Partners Colleton County Data Center stand today?
-
It is proposed, since December 19, 2025. The newest entry, December 19, 2025: Eagle Rock Partners proposes a 860 acre, nine building, 1,000 megawatt data center campus four miles southeast of Walterboro in Colleton County, requiring a zoning exception and drawing community opposition over water and power concerns. [1]
What has Walterboro or Colleton County decided about it?
-
Colleton County (rated restrictive): Colleton County and Fairfield County are considering similar data center moratoriums (reported September 23, 2026, southcarolinapublicradio.org (opens in a new tab)); and Colleton County: Miles Crosby and another resident sued to block a proposed 859 acre data center campus in Colleton County South Carolina (reported September 14, 2026, latimes.com (opens in a new tab)). 10 events are on the county's rows; a rule about the area is not a decision about this record.
What is still unknown about Eagle Rock Partners Colleton County Data Center?
-
Not disclosed by any source on file: how much water it would use, how loud it would be, jobs once it runs, tax it would pay each year, who is constructing it, how much land, where its power comes from, grid connection, how it is cooled. No missing primary document is listed for this record yet; What the record lacks is where one appears when a person names it.
Sources
Reporting
- Gigawatt data center proposal draws opposition from SC Lowcountry residents, politicians - South Carolina Daily Gazette (opens in a new tab), South Carolina Daily Gazette, December 19, 2025, query feed
1 source on file.
Regional grid context
This site is in the SERC Virginia and Carolina South (SRVC-S) regional power market. 2024 to 2025 wholesale price effect: 7.5 percent (+$3.01 per MWh, 2024 to 2025), modeled wholesale price effect, Dallas Fed WP 2606r1, third party estimate. 2028 projected wholesale price effect: 14.7 percent (+$4.94 per MWh, 2028 projected), modeled wholesale price effect, Dallas Fed WP 2606r1, third party estimate.
What researchers have found
These studies measure different things. Some model wholesale market prices. Some measure what households actually paid. Some model what would happen under a policy change. The record shows each one as the authors stated it and does not rank them.
These studies measure different things. Some model wholesale market prices. Some measure what households actually paid. Some model what would happen under a policy change. The record shows each one as the authors stated it and does not rank them.
| Study | What it measured | Finding | Years covered | Method | Who funded or published it |
|---|---|---|---|---|---|
| Plante, Carrasco, Miranda Pineda and Patel, Federal Reserve Bank of Dallas Working Paper 2606r1 (opens in a new tab) | Wholesale electricity price effect and retail electricity rate pass through | Data center demand accounts for an average 6.5 percent increase in wholesale electricity prices across 23 regional markets in 2024 and 2025, reaching 15.0 percent (+$5.22 per MWh) in SERC Virginia and Carolina North and 15.4 percent (+$5.68 per MWh) in the Northwest Power Pool, with wholesale changes passing into retail prices roughly in proportion to the wholesale share of the retail bill over 12 to 24 months. | 2019 to 2025 historical and 2026 to 2028 scenario projections | Synthetic supply stack model across 23 regional power markets combined with reduced form retail pass through regressions | Federal Reserve Bank of Dallas (government research working paper; views are the authors') |
| Watten, Bistline and Blanford, Electric Power Research Institute (arXiv:2606.19777) (opens in a new tab) | State level retail electricity rate change across all customer classes | Where data centers pay standard industrial rates and improve grid utilization, state average retail rates could fall by roughly 1 percent nationally by 2030 (up to 4 percent in high growth states, or roughly $7 billion per year in fixed cost spreading); outcomes reverse toward higher residential bills if new generation and transmission upgrades outpace load revenues. | 2026 to 2030 | Capacity expansion and utility revenue requirement model allocating fixed transmission and distribution costs across customer classes | Electric Power Research Institute (nonprofit energy research institute funded primarily by member electric utilities) |
| Meeks, Pless, Qi and Wang, MIT Center for Energy and Environmental Policy Research (opens in a new tab) | Realized utility revenue and customer bill changes from historical data center openings | In the 6 years following data center entry (1998 to 2018), average electric utility revenue rose 8 percent (+$104 million per utility per year), residential bills rose 2 percent (+$30 per household per year) and commercial bills rose 4 percent (+$262 per customer per year), driven by peak coincident demand charges and infrastructure capital additions. | 1998 to 2018 | Difference in differences event study of historical data center openings matched to utility level EIA Form 861 billing and revenue panels | MIT Center for Energy and Environmental Policy Research (university working paper) |
| Norris, Profeta, Patino Echeverri and Cowie, Duke University Nicholas Institute (NI R 26-04) (opens in a new tab) | Grid headroom and new gigawatts of large load accommodated under minimal peak hour curtailment | Across 22 major US balancing authorities, roughly 76 GW of new data center load can be integrated without building new peaking capacity if facilities curtail load by 0.25 percent of annual operating hours (roughly 22 hours per year), expanding to 98 GW at 0.5 percent annual curtailment and 126 GW at 1.0 percent annual curtailment. | 2025 to 2035 | Hourly balancing authority load duration and reserve margin modeling across 22 US power systems | Duke University Nicholas Institute for Energy, Environment & Sustainability (university research institute) |
| Jeremiah Johnson et al., North Carolina State University (Environmental Research Letters) (opens in a new tab) | Wholesale electricity prices, residential bills by state and power sector carbon emissions through 2030 | Projected data center and crypto load growth raises US electricity demand 6 to 12 percent by 2030 and increases residential electricity bills up to 57 percent in the most heavily affected states (including Virginia at roughly $32 per month or $384 per year for an average household) while adding 49 to 125 million metric tons of CO2 per year. | 2024 to 2030 | National capacity expansion and unit commitment dispatch model (TEMOA) across US grid regions | North Carolina State University researchers in Environmental Research Letters (peer reviewed journal) |
| Monitoring Analytics, PJM Independent Market Monitor (Q1 2026 State of the Market Report) (opens in a new tab) | PJM Base Residual Auction capacity market clearing prices and total wholesale capacity bill attributable to data center load | Data center load growth was the primary driver of the PJM 2025/2026 and 2026/2027 capacity market tightness, accounting for $9.3 billion of the $14.7 billion total PJM capacity cost in the 2025/2026 delivery year and driving a 76 percent surge in PJM wholesale power costs in Q1 2026. | 2025 to 2027 delivery years and Q1 2026 | Counterfactual PJM Base Residual Auction clearing runs removing forecast and existing data center peak load additions | Monitoring Analytics, LLC (independent market monitor for PJM Interconnection, mandated by FERC) |
| Union of Concerned Scientists, Billions of Dollars in Unreported Data Center Costs in PJM (opens in a new tab) | Local transmission network upgrade costs triggered by data center interconnections in PJM | In PJM alone, $4.36 billion in transmission upgrades across 150 supplemental transmission projects in 2024 were triggered by data center connections and socialized across regional utility ratepayers under PJM tariff rules. | 2022 to 2024 PJM transmission expansion filings | Project by project audit of PJM Regional Transmission Expansion Plan (RTEP) and utility Attachment M-3 supplemental project filings | Union of Concerned Scientists (nonprofit advocacy group study) |
| Energy and Environmental Economics (E3), Understanding the Drivers of Rising Electricity Rates and the Role of Data Centers (opens in a new tab) | Historical drivers of US retail electricity rate increases and utility rate design for large loads | Historical US retail electricity rate increases from 2020 to 2025 were driven primarily by distribution capital spending, wildfire mitigation, natural gas price spikes and inflation rather than data centers, and well designed large load tariffs can keep new data center additions net neutral or beneficial for existing ratepayers. | 2020 to 2025 historical and forward rate design case studies | Decomposition of historical utility revenue requirements and illustrative utility tariff cost of service modeling | Energy and Environmental Economics (E3), industry commissioned consulting report |
| Nicholas Z. Muller, National Bureau of Economic Research Working Paper 35100 (opens in a new tab) | Monetized air pollution and greenhouse gas health and climate damages per megawatt hour of data center electricity use | Marginal air pollution and greenhouse gas damages from fossil fuel generation serving US data centers average $49 to $94 per MWh ($0.049 to $0.094 per kWh), rivaling or exceeding the direct wholesale price of electricity in coal and gas heavy interconnects such as PJM, MISO and SERC. | 2022 to 2025 | Integrated assessment marginal emissions and air quality transport model (AP4T) coupled with EPA CEMS unit level generation data | National Bureau of Economic Research (university working paper by Nicholas Z. Muller, Carnegie Mellon University) |
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Data Center Record. Eagle Rock Partners Colleton County Data Center. Last verified October 27, 2026. https://datacenterrecord.org/projects/eagle-rock-partners-colleton-county-data-center-walterboro-sc. Accessed October 30, 2026.
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Sources read 1 source on file, 0 primary
Figures Each figure as its source gave it, with its basis; another source's figure never stands in for the record's own, and nothing is estimated.
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Data Center Record, "Eagle Rock Partners Colleton County Data Center", https://datacenterrecord.org/projects/eagle-rock-partners-colleton-county-data-center-walterboro-sc. Data: Data Center Record, datacenterrecord.org, CC BY-NC 4.0.
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For researchers
- Stage
- Proposed
- Tier
- built from one source
- Tags
- Built from one source
- Coordinates
- 32.8624, -80.6128
- How the location is known
- Location from the county parcel record.
- Location source
- https://www.colletoncounty.org/
- Coordinate source
- Colleton County zoning application near Walterboro
- How capacity was disclosed
- the developer's figure
- Capacity, if disclosed
- 1 GW, the developer's figure
- Rating of the county's rows
- Restrictive
- Published
- September 28, 2026
- Last verified
- October 27, 2026
- Undisclosed in public filings
- Location source number, Location last verified, EPA registry id, Uses, Tenancy, Cooling, How water was disclosed, How acreage was disclosed, Interconnection