The site
The site from above
Power
Power and the grid
None energized or contracted yet
On-site natural gas power with carbon capture (up to 1.25 to 1.5 GW)Proposed, unpermitted
developer says up to 1.5 GW (Oct. 2025); the sponsor's CEO later described 1.25 GW; no air permit application found Company · Oct. 2025
Proposed
Other sources, size not disclosed
- Mesa Power Solutions gas generator sets Intent onlyAug. 2026 announcement states an intention to explore only; no MW, price or terms Company · Aug. 2026
- Reported engine plan Reported (press)press reports 150 gas generators plus 100+ diesel backup units; no maker or MW named by the company News report · June 2026
Not used, not on record, or dropped
- Utility grid Not usednone sought: islanded by design; no utility service agreement or Public Service Commission docket found Utility regulator · Oct. 2026
Getting on the grid
Who supplies what, what it costs, and what is still not public.
- Oct. 7, 2025Gas power announcedSpiritus's Orchard Power platform is to supply up to 1.5 GW of on-site gas power with carbon capture. Company · Oct. 2025
- Aug. 28, 2026Mesa Power Solutions joinsPrometheus says it intends to explore a campus in Natrona County with Mesa's gas generator sets. Company · Aug. 2026
- As of Oct. 2026No air permit foundNo application to the state air regulator for the claimed 1.5 GW of gas generation turned up. see Permits
- Not setUtility service: noneNo utility service or regulator docket exists, consistent with the off-grid design. see Permits
- Gas supply is not addressed in any source: no pipeline agreement or supplier is named. Utility regulator · Oct. 2026
Is it running?
Evidence from space
NO2 over the site, net of the rural background, was about the same in July–September 2026 (6 µmol/m²) as a year earlier (6), and the rural background stayed flat (12 and 13). The satellite sees no new combustion large enough to stand out here. On record here: On-site natural gas power with carbon capture (up to 1.25 to 1.5 GW), 1,500 MW, proposed; Mesa Power Solutions gas generator sets, proposed; Reported engine plan, proposed. No rise fits a plant that is not running yet, or runs little; it does not prove either. The site itself is not fixed on record, so the box is centered on an approximate point and the reading is approximate too.
NO2 over the campus and over open country (µmol/m²)
What else could explain it
- Ranch land east of Casper; the city and its refinery sit just west of the box, so a west wind can carry their NO2 in.
- Weather moves NO2 from day to day (wind, sunlight, cloud), and it builds up in winter. Subtracting the background box and comparing the same season a year apart removes most of that.
How this works: the Sentinel-5P satellite measures NO2 in the air over every point on Earth once a day, around 1:30 p.m. local time, in pixels about 5.5 by 3.5 km. NO2 comes from burning fuel (turbines, engines, traffic, power plants), so a rise over a site that open country does not share points to new combustion there. It shows combustion activity, not megawatts. The site box is about 15 km across; the background box is open country about 71 km away. We use only high-quality readings and drop days or weeks when cloud hides more than half of either box. Data: Copernicus Sentinel-5P (ESA), processed with the Copernicus Data Space Ecosystem Sentinel Hub statistics service.
Permits
Permits checklist
1 pending · 5 checked, nothing on file
- ◷Carbon dioxide injection well (partner's) PendingWyoming DEQ Water Quality Division · July 2024: Casper Carbon Capture applied in July 2024; under review, not issued Dataset · Oct. 2025
- –Checked, nothing on file: Industrial siting permit, Air permit for gas generation, County land use, Natrona County, County land use, Converse County, Utility service filing
Risks
What could slow it down
- HighNo filings of any kindA state industrial siting permit is required and none is filed, and there is no air permit or county application. The 2026 power target looks out of reach. News report · Oct. 2026
- HighNo tenant, little moneyNo lease or offtake is on record, and the company has raised about $30M in total against a $500M-plus plan. SEC filing · Sept. 2026
- MediumPower plan keeps shiftingSize fell from 1.5 GW to 1.25 GW, the engine supplier is an intent only, and a resident alleged shifting power plans. News report · Sept. 2026
- MediumOrganized local oppositionResidents east of Casper petition for full state review and raise water, emissions, noise and reclamation concerns at county meetings. News report · Sept. 2026
- WatchSite not pinned downNo parcel or address is published, and no land deed or lease is on record; the land is to come from a partner. Company · Oct. 2025
Money
Money on record
$500M
planned initial investment (Oct. 2025)
from the partnership release; not committed Company · Oct. 2025
$30.3M
equity sold by Prometheus, Sept. 2026
of $34.8M offered; company level, allocates nothing to Casper SEC filing · Sept. 2026
$30M
Spiritus Series A, Oct. 2025
partner-level financing for its carbon-capture unit, not for the campus Dataset · Oct. 2025
$80M a year
added county property tax, developer says
developer presentation, Oct. 2026 (press) News report · Oct. 2026
Not on record: project financing closed: no lender, debt, equity close or tenant offtake for Casper Company · Oct. 2026
Timeline
What happened, and what is due
SitePaper trailConstructionPowerPermitsMoneyLegalUpcoming
- Sept. 2, 2024Paper trail Prometheus Hyperscale registered in Wyoming and Texas
- Oct. 7, 2025Site Prometheus, Spiritus and Casper Carbon Capture announce a carbon-negative campus: $500M initial, up to 1.5 GW, first power in 2026. Company · Oct. 2025
- Jan. 13, 2026Site Prometheus promises community benefit agreements and local hiring at its Wyoming sites. Company · Jan. 2026
- March 2026Money Former bp chief Bernard Looney becomes CEO; reports say Prometheus is still seeking hyperscaler clients.
- June 17, 2026Permits Natrona County commissioners decline an industrial-park route that would have removed state siting review. News report · June 2026
- June 17, 2026Power Sponsor restates the campus as up to 1.25 GW, down from 1.5 GW. Company · June 2026
- Aug. 28, 2026Power Prometheus and Mesa Power Solutions announce an intention to explore a Natrona County campus. Company · Aug. 2026
- Sept. 3, 2026Site Residents launch a petition for full state review; public comment at county meetings runs through Oct. News report · Sept. 2026
- Sept. 9, 2026Money Prometheus files a Form D showing $30.3M of equity sold company-wide. SEC filing · Sept. 2026
- Oct. 6, 2026Site Developer presents plans to Natrona County commissioners (press). News report · Oct. 2026
- End of 2026Power Announced target for first IT-ready power, with no permit or construction on record. Company · Oct. 2025
Construction activity
Satellite captures by quarter
Since March 2022: 71 satellite captures. The chart starts in the first quarter of 2023; 4 earlier records are not drawn.
Satellite
’23
’24
’25
’26
Dot size: records in the quarter, largest = 6. Two-digit years mark each first quarter.
The buildings
Specs
2.5M sq ft
first phase as described at a county meeting: five 500,000 sq ft halls (press)
~3,000 jobs
construction jobs developer says, plus 150 permanent and $80M a year of added county property tax
- Closed loop: liquid cooling; founder says the halls use almost no water News report · Oct. 2026
Who is involved
Owners, partners and builders
Developer
- Prometheus Hyperscale (Houston; formerly Wyoming Hyperscale White Box): developer; Bernard Looney, CEO
- In-Q-Tel: strategic investor in Prometheus (press)
Partners
- Spiritus Technologies: Orchard Power gas generation and carbon capture
- Casper Carbon Capture (Live Oak Environmental; backed by SG Interests): land, rights-of-way and CO2 wells
- Mesa Power Solutions: gas generator sets (intent only)
Counterparties
- Oklo: lists Prometheus among non-binding letters of intent, with no MW or site
Decision-makers
- Wyoming Industrial Siting Council and DEQ
- Natrona and Converse County commissioners
Still unknown
Open questions
- Any tenant, lease or offtake.
- Exact site: the Oct. 2025 point on file is downtown Casper, so no satellite read of the project is possible.
- Gas supply and the engine order for the generators.
- Whether any siting, air or county application is ever filed.
Where this comes from
278 records from 30 documents
Drawn from news reports, public and commercial datasets, company statements, business registries, securities filings, state agency records, local government records, utility regulator dockets and satellite captures, each kept with its date and source. The bar shows documents by type.
News report 12Dataset 8Company 6SEC filing 2State agency 2Local government 1Utility regulator 1Satellite 0
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 (25)
- Equity raised (SEC Form D): Prometheus Hyperscale (a corporation, HQ Houston, TX per the form) filed its only SEC document, a Form D, on September 9, 2026: $34,846,637 offered, $30,336,526 sold. The filing is a company-l“totalOfferingAmount 34846637; totalAmountSold 30336526”SEC filing · Sept. 2026 · grade A
- Oklo letter of intent: Oklo Inc.'s FY2025 10-K lists Prometheus Hyperscale (formerly Wyoming Hyperscale White Box LLC) among counterparties to non-binding letters of intent; no MW, site or Casper term is stated for Prome“we have signed non-binding letters of intent with Equinix, Inc. (“Equinix”), Diamondback E&P LLC (“Diamondback Energy”), and Prometheus Hyperscale (formerly Wyoming Hyperscale White Box LLC)”SEC filing · March 2026 · grade A
- Power plan: onsite (proposed behind-the-meter islanded natural gas generation; no grid connection planned)“Mesa's manufacturing capabilities in Casper have proven they can fulfill our vision of on-site, locally powered compute”Company · Aug. 2026 · grade B
- On-site power technology: Natural gas generation with integrated point-source carbon capture and direct air capture (Spiritus Orchard Power); Mesa Power Solutions natural gas generator sets proposed from Aug 2026“designs, builds, installs and services distributed power systems”Company · Aug. 2026 · grade B
- Stated campus size: 1,250 MW“Falls Ranch near Casper, Wyoming, designed for up to 1.25 GW”Company · June 2026 · grade B
- IT capacity: 1,500 MW“deliver up to 1.5 gigawatt (GW) of IT-ready capacity over multiple phases”Company · Oct. 2025 · grade B
- On-site generation: 1,500 MW“Orchard Power, which will deliver 1.5 GW of on-site firm power fueled by natural gas”Company · Oct. 2025 · grade B
- Original target date: 2026 (first IT-ready power targeted)“First IT-ready power is targeted for 2026”Company · Oct. 2025 · grade B
- Prometheus, Spiritus and Casper Carbon Capture announce the Casper campus partnership: minimum $500M initial investment, up to 1.5 GW IT-ready capacity, first IT-ready power targeted 2026“First IT-ready power is targeted for 2026”Company · Oct. 2025 · grade B
- Nearest substation: unnamed (voltage untagged) - 10.81 kmMeasured on OpenStreetMap map data.
- Nearest power line of 345 kV or more: none mapped within 16 kmMeasured on OpenStreetMap map data.
- Nearest power line of 138 kV: unnamed (115 kV) - 0.19 kmMeasured on OpenStreetMap map data.
- Nearest gas pipeline: Wyoming Transmission (gas, Black Hills Energy) - 3.07 kmMeasured on OpenStreetMap map data.
- Current target date: No revised COD published; the 2026 first-power target is unmet - no permits, land-use application or construction as of Oct 2026“commissioners said they have not yet received a formal application”News report · Oct. 2026 · grade C
- PSC certificate / large-load docket: No PSC docket for Prometheus Hyperscale, Mesa Power Solutions or a Casper large-load service arrangement found; consistent with the behind-the-meter design (no utility service sought)“No docket for Prometheus Hyperscale, Mesa Power Solutions or a Casper large-load service arrangement appears in the Wyoming PSC DMS portal as checked”Utility regulator · Oct. 2026 · grade C
- Trenton Thornock interview (Converse-Ations podcast, Elevate Glenrock): a 1,250-megawatt facility in the Converse and Natrona County area, 100% self-generated natural gas power, closed-loop liquid cooling, up to 2,500 co“Prometheus is planning a 1,250-megawatt facility in the Converse and Natrona County area”News report · Oct. 2026 · grade C
- Regulatory path: Wyoming Industrial Siting Act Section 109 permit (ISC) plus WY DEQ air permits required; Natrona County declined an industrial-park PUD bypass on June 16, 2026, keeping state review; no ISC or DEQ filing lo“Prometheus must formally apply for a Section 109 permit through the Wyoming ISC.”News report · June 2026 · grade C
- Generation plan reported: 150 Jenbacher J620 natural-gas generators plus 100+ diesel backup units“Most residents have never seen what 150 Jenbacher J620 natural-gas generators - plus more than a hundred diesel backups or even larger gas turbines - do to air and water quality.”News report · June 2026 · grade C
- Stated campus size: 1,250 MW“including Falls Ranch near Casper, Wyoming, designed for up to 1.25 GW in partnership with Casper Carbon Capture”Company · June 2026 · grade C
- Project status press: As of the June 17, 2026 Natrona County commissioners' meeting the Casper project (Natrona/Converse counties, east of Casper) was at presentation stage: a tentative Mesa Power Solutions partnership w“Prometheus Hyperscale's tentative partnership with Mesa Power Solutions is “fantastic” and would be impactful for both companies”News report · June 2026 · grade C
- Address: East of Casper, WY; data halls proposed in Converse County with power generation and workforce camp in Natrona County“the data center buildings themselves would likely be located in neighboring Converse County. However, Natrona County is the proposed site for the power generation facility and workforce man-camp”News report · June 2026 · grade C
- In a June 2026 interview the sponsor's CEO described 'a 1,250-megawatt facility in the Converse and Natrona County area' - below the 1,500 MW 'up to'“Prometheus is planning a 1,250-megawatt facility in the Converse and Natrona County area, paired with a similar project in Evanston”News report · June 2026 · grade C
- Generator maker and model: No OEM or model named for the Casper campus in any source checked. Program-level only: Conduit Power ordered 75 INNIO Jenbacher J620 Ecomax units (~250 MW) in Nov 2025 for Texas and Wyoming dep“Conduit Power Executes the Purchase of 250 MW of Power Generating Equipment for 2027 Data Center Deployments in Texas and Wyoming”News report · Nov. 2025 · grade C
- Conduit Power (Prometheus Texas partner) executed purchase orders for 75 Ecomax 33 units with INNIO Jenbacher J620 engines (~250 MW) for 2027 data center deployments in Texas and Wyoming; any allocation to the Casper cam“Conduit Power Executes the Purchase of 250 MW of Power Generating Equipment for 2027 Data Center Deployments in Texas and Wyoming”News report · Nov. 2025 · grade C
- IT capacity: 1,500 MW“a multi-phase buildout planned to deliver up to 1.5GW of IT load”Company · Oct. 2025 · grade C
Money and contracts (25)
- Prometheus Hyperscale closed most of a ~$34.8M equity offering ($30.3M sold) in its September 2026 Form D - real money raised, but three orders of magnitude below a 1.5 GW campus budget, and the filing allocates nothing“totalAmountSold 30336526”SEC filing · Sept. 2026 · grade A
- Incentives: No campus-specific incentive agreement found. Wyoming data-center sales/use tax exemption (W.S. 39-15-105) applies by statute - qualifying equipment purchases over $2M/yr, $5M capital threshold, $50M adds HVA“the sales price paid for the purchase or rental of qualifying computer equipment including computers, servers, monitors, keyboards, storage devices and other peripherals”State agency · Oct. 2026 · grade B
- collaboration announcement: scope Intention to advance a proposed data center campus in Natrona County; Mesa generation capabilities to fulfill the vision of on-site, locally powered compute“today announced their intention to advance a proposed data center campus in Natrona County, Wyoming”Company · Aug. 2026 · grade B
- collaboration announcement: conditions / binding terms FINDING: the release states an intention to explore and advance only; no MW, investment amount, deadline, termination or condition clauses are stated, and Spiritus /“Prometheus Hyperscale and Mesa Power Solutions to Explore Data Center Campus in Natrona County”Company · Aug. 2026 · grade B
- Bernard Looney (former bp CEO) becomes CEO of Prometheus; the company describes $30+ billion of hyperscale data center projects (sponsor-level pipeline claim, not campus financing)“Bernard Looney to Become Chief Executive Officer of Prometheus Hyperscale”Company · March 2026 · grade B
- community benefit commitment (SPONSOR-LEVEL): commitment Company commits to Community Benefit Agreements, local hiring and transparency for all Wyoming data center sites (Jan 13, 2026 release); no site-specific CBA for C“Prometheus Hyperscale Commits to Community Benefit Agreements, Local Hiring, and Transparency for All Wyoming Data Center Sites”Company · Jan. 2026 · grade B
- Prometheus launches Build Wyoming commitments: Community Benefit Agreements, local hiring and transparency for all Wyoming data center sites (sponsor-level)“Prometheus Hyperscale Commits to Community Benefit Agreements, Local Hiring, and Transparency for All Wyoming Data Center Sites”Company · Jan. 2026 · grade B
- Cooling: Liquid cooling; proprietary aquifer, non-consumptive water-cooling system (company description)“design and finance high-density compute halls using proprietary aquifer, non-consumptive water-cooling systems”Company · Oct. 2025 · grade B
- Stated capital cost: 500000000 USD“The project is expected to include a minimum of $500 million in initial investment”Company · Oct. 2025 · grade B
- strategic partnership: scope Develop a carbon-negative digital infrastructure campus in Casper, Wyoming“a strategic partnership to develop a pioneering carbon-negative digital infrastructure campus in Wyoming”Company · Oct. 2025 · grade B
- strategic partnership: investment (planned figure in the release; not committed or closed financing) 500000000 USD“The project is expected to include a minimum of $500 million in initial investment”Company · Oct. 2025 · grade B
- strategic partnership: capacity (up to 1.5 GW of IT-ready capacity over multiple phases) 1,500 MW“deliver up to 1.5 gigawatt (GW) of IT-ready capacity over multiple phases”Company · Oct. 2025 · grade B
- strategic partnership: schedule First IT-ready power targeted“First IT-ready power is targeted for 2026”Company · Oct. 2025 · grade B
- strategic partnership: power supply scope (on-site firm power fueled by natural gas, with integrated point-source carbon capture and direct air capture) 1,500 MW“Orchard Power, which will deliver 1.5 GW of on-site firm power fueled by natural gas”Company · Oct. 2025 · grade B
- strategic partnership: land and sequestration scope Provide land, rights-of-way, and access to CO2 sequestration wells in Natrona and Converse Counties“Casper Carbon Capture will provide land, rights-of-way, and access to permitted CO2 sequestration wells in Natrona and Converse Counties”Company · Oct. 2025 · grade B
- strategic partnership: termination / conditions FINDING: no termination, cancellation, condition-precedent or exclusivity clauses are stated in the public release, and the underlying partnership agreement is not public -“a strategic partnership to develop a pioneering carbon-negative digital infrastructure campus in Wyoming”Company · Oct. 2025 · grade B
- Spiritus secured $30M Series A financing to advance Orchard One DAC, the CO2 source for the Casper Carbon Storage Hub (partner-level financing, not campus financing)“Spiritus secured $30M Series A financing (2025)”Dataset · Oct. 2025 · grade B
- Financing: None closed found - no project debt, equity close, lender or tenant offtake disclosed for the Casper campus as of Oct 2026; the $500M figure is planned initial investment, not committed financing“a minimum of $500 million in initial investment and deliver up to 1.5 gigawatt (GW) of IT-ready capacity”Company · Oct. 2026 · grade C
- Workforce estimate: Developer estimates about 3,000 construction jobs and 150 long-term operational positions; projects more than $80M/yr in added county property tax revenue“The developer estimates the project would create about 3,000 construction jobs and 150 long-term operational positions”News report · Oct. 2026 · grade C
- Prometheus presented its plans to Natrona County commissioners; developer estimates ~3,000 construction jobs, ~150 permanent jobs and >$80M/yr in added property tax revenue; Advance Casper CEO publicly supportive (Casper“after Prometheus Hyperscale presented its plans to Natrona County commissioners, questions began to surface”News report · Oct. 2026 · grade C
- Acres: 940 acres“build a $500 million, 1.5-gigawatt data center on 940 acres near Casper, Wyoming”News report · Sept. 2026 · grade C
- Opposition: Organized resident opposition east of Casper (Natrona and Converse counties): Change.org petition for full state review (Sep 3, 2026), Wyoming Data Center Facts campaign site, sustained public comment at Jun-“tell the commissioners: do not let a $500 million industrial project skip the review process built to catch problems a county alone might miss”News report · Sept. 2026 · grade C
- Change.org petition Require Full State Review of the Casper Data Center published, seeking to block an industrial-park zoning exemption from ISC review“do not let a $500 million industrial project skip the review process”News report · Sept. 2026 · grade C
- Square feet: 2500000 sq ft“a planned first phase consisting of five 500,000-square-foot structures”News report · June 2026 · grade C
- In-Q-Tel strategic investment in Prometheus Hyperscale revealed; amount undisclosed; IQT's Sara A. Jones joins the board. Sponsor-level capital, not Casper project financing“Terms of the deal have not been shared”News report · Feb. 2026 · grade C
Permits and government (12)
- Industrial siting permit (W.S. 35-12-109 Section 109): No application filed as of Oct 2026. A permit is required: the project's stated $500M+ investment exceeds the $283,166,876 jurisdictional threshold. Natrona County B“Facilities required to obtain a permit from the Industrial Siting Council include: Facilities with an estimated construction cost of $283,166,876 or more”State agency · Oct. 2026 · grade B
- The AQD OpenAir portal (openair.wyo.gov) is JS-driven and not text-fetchable - named gap“WDEQ Air Quality Division public notices via GovDelivery bulletin index; WDEQ OpenAir portal (openair.wyo.gov, JS-driven, not text-fetchable - named gap)”Dataset · Oct. 2026 · grade B
- Land control: Land and rights-of-way to be provided by Casper Carbon Capture under the Oct 2025 partnership; no deed, lease or land sale for the campus recorded in any source checked“Casper Carbon Capture will provide land, rights-of-way, and access to permitted CO2 sequestration wells in Natrona and Converse Counties”Company · Oct. 2025 · grade B
- Class VI CO2 injection well permit (UIC): Application under review - submitted Jul 2024, deemed complete Aug 2024, technical review underway, draft permit expected to move to public comment mid-2025 per Oct 2025 profile;“July 2024: Class VI permit application submitted (WDEQ UIC #2024-0052v1.0; Permit ID WYS-025-00487)”Dataset · Oct. 2025 · grade B
- Stage: announced only (pre-application; paper)“Prometheus must formally apply for a Section 109 permit through the Wyoming ISC”News report · Oct. 2026 · grade C
- County land-use approval (CUP / zoning): No Prometheus application or agenda item found in Converse County Commission agendas or meeting feeds searched through Oct 2026, although current plans place the data halls in Con“No Prometheus application or agenda item appears in the Converse County Commission meeting feed (citizenportal.ai/feed/83763/wyoming/converse-county) searched through Oct 2026”News report · Oct. 2026 · grade C
- County land-use approval (CUP / zoning): No formal application received as of Sep 15, 2026 (commissioners, per meeting coverage); the Jun 2026 discussion was guidance on the industrial-park question only, with no applica“commissioners said they have not yet received a formal application and pledged careful review”News report · Sept. 2026 · grade C
- Natrona County Board of County Commissioners: Sustained public comment on the proposed data center and on-site generation; a resident alleged shifting power plans; commissioners stated no formal application had been rece“commissioners said they have not yet received a formal application and pledged careful review”News report · Sept. 2026 · grade C
- Natrona County Board of County Commissioners: Public comment - water use for initial glycol fills, emissions, 24/7 generator noise, landscape and tourism impacts, construction traffic, and who pays for reclamation if the“Dozens of residents voiced concerns about water use for initial glycol fills, emissions and 24/7 generator noise”News report · Sept. 2026 · grade C
- Natrona County Board of County Commissioners: Public comment on the proposed Prometheus data center - residents demanded binding studies and benefits before any zoning action; public split“Public splits over Prometheus plan as residents demand binding studies, benefits before zoning”News report · Sept. 2026 · grade C
- Development stage: announced no permit documented“The company has another project in development in Wyoming - the 1.25GW Falls Ranch near Casper, in partnership with Casper Carbon Capture”News report · June 2026 · grade C
- Natrona County Board of County Commissioners: Prometheus Hyperscale inquiries regarding an industrial park designation via Planned Unit Development, which would have removed Wyoming Industrial Siting Council jurisdiction“Commissioners flatly declined to take on that responsibility, expressing a clear preference for the state's rigorous evaluation framework”News report · June 2026 · grade C
Site and other (11)
- County code: 56025+56009“buildings: Natrona County County WY (56025)”Dataset · Oct. 2026 · grade B
- Developer: Prometheus Hyperscale“Prometheus Hyperscale, an energy-first data center developer”Company · Aug. 2026 · grade B
- Project name: Falls Ranch (near Casper, WY)“The Evanston campus is the first of multiple Prometheus Hyperscale sites in development, including Falls Ranch near Casper, Wyoming, designed for up to 1.25 GW in partnership with Casper Carbon Capture”Company · June 2026 · grade B
- Name: Prometheus Hyperscale Casper (Falls Ranch)“including Falls Ranch near Casper, Wyoming, designed for up to 1.25 GW in partnership with Casper Carbon Capture”Company · June 2026 · grade B
- The sponsor Uinta CUP release restates Falls Ranch design capacity as up to 1.25 GW, down from the 1.5 GW claimed in Oct 2025“designed for up to 1.25 GW in partnership with Casper Carbon Capture”Company · June 2026 · grade B
- Aliases: Falls Ranch; Casper project; Prometheus Casper Carbon Capture campus“a strategic partnership to develop a pioneering carbon-negative digital infrastructure campus in Wyoming”Company · Oct. 2025 · grade B
- Announced: Oct. 7, 2025“today announced a strategic partnership to develop a pioneering carbon-negative digital infrastructure campus in Casper, Wyoming”Company · Oct. 2025 · grade B
- Construction stage: not stated“commissioners said they have not yet received a formal application and pledged careful review”News report · Oct. 2026 · grade C
- Water use stated: Closed loop; the data center itself uses virtually no water beyond basic employee needs (founder statement in Converse-Ations interview recap)“The system operates in a closed loop, meaning the data center itself uses virtually no water beyond basic employee needs”News report · Oct. 2026 · grade C
- Phases: Multiple phases; phase 1 described in Jun 2026 county-meeting coverage as five 500,000 sq ft data halls in Converse County“a planned first phase consisting of five 500,000-square-foot structures”News report · June 2026 · grade C
- Announced: Oct. 7, 2025“Prometheus Hyperscale, Spiritus, and Casper Carbon Capture today announced a strategic partnership to develop a pioneering carbon-negative digital infrastructure campus in Casper, Wyoming”News report · Oct. 2025 · grade C
Imagery and records: Satellite imagery: Maxar via Esri World Imagery Wayback.