Gemini Data Center (Sioux Falls Technology Park)
A California family office's Gemini Data Center SD LLC won annexation and light-industrial zoning for a 164-acre data center site in northeast Sioux Falls that it says could host up to 500 MW, but no tenant or permits have been reported. Also known as: Gemini Data Center Sioux Falls, Sioux Falls Technology Park.
Who is behind it
The record, newest first
Citizen groups asked the city for a temporary pause on hyperscale data center building permits; city leaders signaled they favor rules over a moratorium. (SDPB, Oct. 5, 2026)
Gemini launched a project website describing a master-planned campus to be built and run by a future end user. (KELOLAND, March 2, 2026)
A House committee voted 9-3 against a 50-year data center sales-tax exemption on equipment and software. (South Dakota Searchlight, Feb. 4, 2026)
A referendum petition on the rezoning fell short of the required signatures and was rejected by the city clerk. (SiouxFalls.Business, Jan. 30, 2026)
Developer said it bought the land from Xcel Energy in late 2023 and had finished an interconnection study, with a facility study under way and no tenant yet. (SiouxFalls.Business, Jan. 19, 2026)
City council voted 7-0 to rezone about 145.6 of the acres to light industrial and approved a preliminary plan, limiting city water to domestic use. (SDPB, Jan. 7, 2026; KELOLAND, Jan. 7, 2026; SiouxFalls.Business, Jan. 19, 2026)
KELOLAND reported the city council had moved the land into its Tier 1 growth area in the 2040 plan, opening the way to industrial zoning; Brandon officials raised noise and growth concerns. (KELOLAND, Aug. 8, 2025)
Conflicts and open questions
- Coordinates approximate from the reported cross streets.
- Rezoning acreage reported as 145.6 (SDPB) of a roughly 164-acre site; about 17 acres to be conservation land per SiouxFalls.Business.
- Annexation reported by KELOLAND as occurring in October 2025.
- No lawsuit found.
The full record
- Status note
- Land annexed and rezoned to light industrial (I-1); in city administrative review, still needs engineering plans, plat and building permit. No tenant named and no construction reported as of October 2026.
- Power note
- Site is described as able to support a 500 MW campus; as of January 2026 the Xcel interconnection study was done and a facility study under way, with no service agreement reported.
- Evidence
- News reports; primary records not yet obtained
- Size class
- 50 MW or more (tracker scope)