# Nobles Energy Storage Project, also described as the Nobles Battery Energy Storage System Project. Publisher: CapexCue Canonical dossier: Dossier reference: release 1 (76bb4850-71b5-4988-a5e1-74b8d35277ce) Released project intelligence Oldest supporting observation: 2026-11-07 19:14:43.587971+00:00 Dossier released: 2026-11-07T22:15:32.719037+00:00 Source report dates and capture dates are listed per fact below; neither establishes an event date. ## Project summary Nobles Energy Storage Project The project is also described as the Nobles Battery Energy Storage System Project. It is proposed in Nobles County, approximately 0.5 mile north of Reading, near 190th Street and McCall Avenue, adjacent to the existing Nobles County Substation. The proposed battery storage system is rated up to 300 MW and approximately 1,200 MWh; the project summary describes up to 300 MW for four continuous hours. These are proposed ratings, not operating output. The preliminary design includes battery units, transformers, inverters, a substation and an approximately 1,300-foot 115-kV generation interconnection line. The project description says the system will primarily use lithium iron phosphate (LFP); the summary says LFP was selected, but final technology and equipment specifications remain to be determined. Northern States Power, doing business as Xcel Energy, is listed as applicant. The project description says it submitted a Site Permit Application under the standard review process, and the docket page labels docket 26-281 “active.” Neither establishes permit approval or construction. Xcel anticipates permit approval in Q2 2027, construction beginning in Q3 2027 and commercial operation in Q4 2028; these are forecasts. The project summary reports that Xcel is evaluating Sungrow battery equipment; it does not document an open procurement. **Reading scope:** This account is based on selected visible text from the project page: its title, project details, project summary and key-project-documents section (u0001–u0028). The supplied context says linked documents and images were not acquired or interpreted and that the whole document was not reviewed. The reviewed units do not establish a source publication date. ## Evidence limits and unknowns - The cited project details do not establish permit approval, construction progress, actual operating output or a final interconnection design. The approval, construction and operation dates are anticipated milestones. - The project summary leaves final battery technology and equipment specifications to procurement and final engineering; it does not document procurement availability or an award. - The reviewed page units do not show a source publication date; linked documents and images were not acquired or interpreted. Current purchasing availability: unknown. Source-dated plans do not establish current progress or available supplier packages. ## Project metadata Country: United States Region: North America Physical assets: Battery Storage Derived from the exact released evidence; unresolved fields remain unclassified. ## Project category Energy Derived from the reviewed scope statement; delivery stage remains unclassified. Proposed battery energy storage system rated up to 300 MW and approximately 1,200 MWh; the project summary describes up to 300 MW for four continuous hours and a 300 MW Generator Interconnection Agreement with MISO. The project description says it will primarily use lithium iron phosphate (LFP); the summary says LFP was selected, while final technology and equipment specifications remain to be determined during procurement and final engineering. Preliminary design includes approximately 260 battery units, 65 medium-voltage transformers, two main power transformers, inverters, electrical feeder lines, a substation, and an approximately 1,300-foot 115-kV generation interconnection line. The site encompasses approximately 154 acres; approximately 31 acres are designated for preliminary development, including a temporary two-acre laydown yard to be restored after construction, and the permanent operational footprint is approximately 29 acres. Areas outside the designated development footprint are to remain undisturbed. Source: Minnesota Public Utilities Commission (externally supplied capture) — https://puc.eip.mn.gov/web/project/26281 | published unknown | observed 2026-11-07T20:52:05.828509+00:00 Project overview Oldest decisive evidence: 2026-11-07 19:14:43.587971+00:00 Newest evidence: 2026-11-07 19:14:43.587971+00:00 Knowledge reviewed: 2026-11-07T20:55:23.004779+00:00 Publication reviewed: 2026-11-07T22:15:32.061403+00:00 ## Date Xcel Energy anticipates permit approval in the second quarter of 2027, construction beginning in the third quarter of 2027, and commercial operation in the fourth quarter of 2028; these are forecast milestones, not reported achievements. Status: planned Attribution: Minnesota Public Utilities Commission (externally supplied capture) Source: Minnesota Public Utilities Commission (externally supplied capture) — https://puc.eip.mn.gov/web/project/26281 | published unknown | observed 2026-11-07T20:52:05.828509+00:00 ## Name Nobles Energy Storage Project, also described as the Nobles Battery Energy Storage System Project. Status: reported Attribution: Minnesota Public Utilities Commission (externally supplied capture) Source: Minnesota Public Utilities Commission (externally supplied capture) — https://puc.eip.mn.gov/web/project/26281 | published unknown | observed 2026-11-07T20:52:05.828509+00:00 ## Owner Xcel Energy owns the approximately 154-acre project site. Status: reported Attribution: Minnesota Public Utilities Commission (externally supplied capture) Source: Minnesota Public Utilities Commission (externally supplied capture) — https://puc.eip.mn.gov/web/project/26281 | published unknown | observed 2026-11-07T20:52:05.828509+00:00 ## Scope Proposed battery energy storage system rated up to 300 MW and approximately 1,200 MWh; the project summary describes up to 300 MW for four continuous hours and a 300 MW Generator Interconnection Agreement with MISO. The project description says it will primarily use lithium iron phosphate (LFP); the summary says LFP was selected, while final technology and equipment specifications remain to be determined during procurement and final engineering. Preliminary design includes approximately 260 battery units, 65 medium-voltage transformers, two main power transformers, inverters, electrical feeder lines, a substation, and an approximately 1,300-foot 115-kV generation interconnection line. The site encompasses approximately 154 acres; approximately 31 acres are designated for preliminary development, including a temporary two-acre laydown yard to be restored after construction, and the permanent operational footprint is approximately 29 acres. Areas outside the designated development footprint are to remain undisturbed. Status: planned Attribution: Minnesota Public Utilities Commission (externally supplied capture) Source: Minnesota Public Utilities Commission (externally supplied capture) — https://puc.eip.mn.gov/web/project/26281 | published unknown | observed 2026-11-07T20:52:05.828509+00:00 ## Ecology The project summary says the site was selected for its proximity to existing electrical infrastructure and anticipated minimal impacts to natural resources; it also says no alternative sites were considered. Status: reported Attribution: Minnesota Public Utilities Commission (externally supplied capture) Source: Minnesota Public Utilities Commission (externally supplied capture) — https://puc.eip.mn.gov/web/project/26281 | published unknown | observed 2026-11-07T20:52:05.828509+00:00 ## Location Nobles County, Minnesota, approximately 0.5 mile north of Reading, near 190th Street and McCall Avenue, adjacent to the existing Nobles County Substation. Status: reported Attribution: Minnesota Public Utilities Commission (externally supplied capture) Source: Minnesota Public Utilities Commission (externally supplied capture) — https://puc.eip.mn.gov/web/project/26281 | published unknown | observed 2026-11-07T20:52:05.828509+00:00 ## Regulatory Docket 26-281. Northern States Power, doing business as Xcel Energy, is listed as applicant. The project description says it submitted a Site Permit Application to the Minnesota Public Utilities Commission under the standard review process; the page labels the docket status “active.” These details do not establish permit approval or construction. Status: reported Attribution: Minnesota Public Utilities Commission (externally supplied capture) Source: Minnesota Public Utilities Commission (externally supplied capture) — https://puc.eip.mn.gov/web/project/26281 | published unknown | observed 2026-11-07T20:52:05.828509+00:00 ## Procurement The project summary reports that Xcel Energy is evaluating Sungrow battery equipment and that final technology and equipment specifications are to be determined during procurement and final engineering. The supplied project details do not document an open procurement. Status: reported Attribution: Minnesota Public Utilities Commission (externally supplied capture) Source: Minnesota Public Utilities Commission (externally supplied capture) — https://puc.eip.mn.gov/web/project/26281 | published unknown | observed 2026-11-07T20:52:05.828509+00:00 ## Cite this dossier CapexCue — Nobles Energy Storage Project, also described as the Nobles Battery Energy Storage System Project. — dossier released 2026-11-07T22:15:32.719037+00:00, release 1 (76bb4850-71b5-4988-a5e1-74b8d35277ce) — https://capexcue.com/projects/nobles-energy-storage-project-also-described-as-the-nobles-battery-energy-storage-system-project/. For current information and later dossier updates, visit . This file records the release identified above; the current dossier may change.