{
  "name": "Transformer manufacturers",
  "url": "https://transformerleadtimes.com/manufacturers/",
  "license": "CC BY 4.0",
  "cite": "Transformer Lead Times, https://transformerleadtimes.com/",
  "updated": "2026-11-09",
  "fields": [
    {
      "key": "headquarters",
      "label": "Headquarters",
      "type": "string",
      "description": "Manufacturer headquarters as verified."
    },
    {
      "key": "transformer_types",
      "label": "Transformer types",
      "type": "string",
      "description": "Product types as the manufacturer lists them, separated by semicolons."
    },
    {
      "key": "us_manufacturing",
      "label": "US manufacturing",
      "type": "bool",
      "description": "true when a US plant is verified; false when none was found; empty when not yet verified.",
      "filterable": true
    },
    {
      "key": "announced_capacity_expansions",
      "label": "Capacity expansions",
      "type": "string",
      "description": "Announced capacity expansions, with the source in brackets."
    },
    {
      "key": "parent",
      "label": "Parent company",
      "type": "string",
      "description": "Parent company, when there is one."
    },
    {
      "key": "verification_note",
      "label": "Still to verify",
      "type": "string",
      "description": "What we have not yet verified for this manufacturer."
    }
  ],
  "records": [
    {
      "id": "central-moloney",
      "name": "Central Moloney",
      "url": "https://www.centralmoloney.com",
      "summary": "US distribution transformer maker that opened a new $50 million plant in Florida.",
      "tags": [
        "distribution-pole",
        "distribution-pad-mounted"
      ],
      "fields": {
        "transformer_types": "distribution transformers",
        "us_manufacturing": true,
        "announced_capacity_expansions": "New $50M Florida plant (POWER, Jan 2026).",
        "parent": null,
        "verification_note": null,
        "headquarters": null
      },
      "sources": [
        {
          "url": "https://www.centralmoloney.com",
          "title": "Central Moloney",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://powermag.com/transformers-in-2026-shortage-scramble-or-self-inflicted-crisis/",
          "title": "Transformers in 2026: Shortage, Scramble, or Self-Inflicted Crisis? (POWER, 2 Jan 2026)",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "delta-star",
      "name": "Delta Star",
      "url": "https://www.deltastar.com",
      "summary": "US maker of power transformers and mobile substations with plants in Lynchburg, Virginia and San Carlos, California.",
      "hq": "US",
      "tags": [
        "lpt",
        "substation"
      ],
      "fields": {
        "transformer_types": "power transformers; mobile transformers and substations; unitized substations",
        "us_manufacturing": true,
        "announced_capacity_expansions": null,
        "parent": "MacLean Power Systems",
        "verification_note": "Headquarters and MVA/kV ranges not stated on the pages we read.",
        "headquarters": null
      },
      "sources": [
        {
          "url": "https://www.deltastar.com/manufacturing-facilities/",
          "title": "Delta Star: Manufacturing Facilities",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "eaton",
      "name": "Eaton",
      "url": "https://www.eaton.com",
      "summary": "Power management company committing $340 million to a new three-phase transformer plant in South Carolina.",
      "hq": "IE",
      "tags": [
        "distribution-pad-mounted",
        "substation"
      ],
      "fields": {
        "transformer_types": "three-phase transformers",
        "us_manufacturing": null,
        "announced_capacity_expansions": "$340M three-phase transformer facility in South Carolina, targeting a 2027 start (POWER, Jan 2026).",
        "parent": null,
        "verification_note": "Existing US transformer plants not confirmed; the South Carolina plant targets a 2027 start.",
        "headquarters": "Dublin, Ireland"
      },
      "sources": [
        {
          "url": "https://www.eaton.com",
          "title": "Eaton",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://powermag.com/transformers-in-2026-shortage-scramble-or-self-inflicted-crisis/",
          "title": "Transformers in 2026: Shortage, Scramble, or Self-Inflicted Crisis? (POWER, 2 Jan 2026)",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://en.wikipedia.org/wiki/Eaton_Corporation",
          "title": "Wikipedia: Eaton Corporation",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "elsewedy-electric",
      "name": "Elsewedy Electric",
      "url": "https://www.elsewedyelectric.com",
      "summary": "Egyptian electrical group making power transformers up to 220 kV, with transformer plants in Egypt and Zambia.",
      "hq": "EG",
      "tags": [
        "lpt",
        "substation",
        "distribution-pad-mounted"
      ],
      "fields": {
        "transformer_types": "power transformers up to 220 kV; distribution transformers",
        "us_manufacturing": null,
        "announced_capacity_expansions": null,
        "parent": null,
        "verification_note": null,
        "headquarters": "Egypt"
      },
      "sources": [
        {
          "url": "https://www.elsewedyelectric.com",
          "title": "Elsewedy Electric",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://en.wikipedia.org/wiki/Elsewedy_Electric",
          "title": "Wikipedia: Elsewedy Electric",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "ermco",
      "name": "ERMCO",
      "url": "https://www.ermco-eci.com",
      "summary": "Dyersburg, Tennessee maker that calls itself the leading US manufacturer of oil-filled distribution transformers.",
      "hq": "US",
      "tags": [
        "distribution-pad-mounted",
        "distribution-pole"
      ],
      "fields": {
        "transformer_types": "single- and three-phase pad-mount; single- and three-phase pole-mount",
        "us_manufacturing": true,
        "announced_capacity_expansions": "$70M-plus investments in Tennessee and Wisconsin (POWER, Jan 2026).",
        "parent": null,
        "verification_note": "Sites listed: Dyersburg TN, ECI Greeneville, ECI Bristol, ECI Reynosa (Mexico). Ownership not verified.",
        "headquarters": "Dyersburg, Tennessee, US"
      },
      "sources": [
        {
          "url": "https://www.ermco-eci.com",
          "title": "ERMCO",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://powermag.com/transformers-in-2026-shortage-scramble-or-self-inflicted-crisis/",
          "title": "Transformers in 2026: Shortage, Scramble, or Self-Inflicted Crisis? (POWER, 2 Jan 2026)",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "hammond-power-solutions",
      "name": "Hammond Power Solutions",
      "url": "https://www.hammondpowersolutions.com",
      "summary": "Guelph, Ontario maker that calls itself the largest dry-type transformer manufacturer in North America, with a US plant in Baraboo, Wisconsin.",
      "hq": "CA",
      "tags": [
        "distribution-pad-mounted"
      ],
      "fields": {
        "transformer_types": "dry-type; power quality; liquid-filled (India)",
        "us_manufacturing": true,
        "announced_capacity_expansions": "Completed expansions in Mexico and at Guelph, Ontario in 2025 (2025 Annual Report).",
        "parent": null,
        "verification_note": null,
        "headquarters": "Guelph, Ontario, Canada"
      },
      "sources": [
        {
          "url": "https://www.hammondpowersolutions.com",
          "title": "Hammond Power Solutions",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://emea.hammondpowersolutions.com/-/media/Project/HPS/shared/Investor-Relations/2025-Annual-Report-and-Q4-2024-PR/2025-HPS-Annual-Report-031926-FP.pdf",
          "title": "Hammond Power Solutions 2025 Annual Report (Mar 2026)",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "hd-hyundai-electric",
      "name": "HD Hyundai Electric",
      "url": "https://www.hd-hyundaielectric.com",
      "summary": "South Korean power transformer maker with a US plant in Alabama since 2011, now building a second Alabama plant for units up to 765 kV.",
      "hq": "KR",
      "tags": [
        "lpt",
        "gsu",
        "substation"
      ],
      "fields": {
        "transformer_types": "power transformers",
        "us_manufacturing": true,
        "announced_capacity_expansions": "Second Alabama plant (groundbreaking March 2026), due for completion in April 2027, adding about 50% extra-high-voltage transformer capacity with production up to 765 kV (Korea Times, Oct 2026); aiming to raise US production 30% by 2026 (POWER, Jan 2026).",
        "parent": "HD Hyundai",
        "verification_note": null,
        "headquarters": "South Korea"
      },
      "sources": [
        {
          "url": "https://www.hd-hyundaielectric.com",
          "title": "HD Hyundai Electric",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://en.wikipedia.org/wiki/HD_Hyundai_Electric",
          "title": "Wikipedia: HD Hyundai Electric",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://www.powermag.com/wp-content/uploads/2026/01/making-the-connection-executive-summary-september-2025.pdf",
          "title": "Wood Mackenzie executive summary, Sept 2025",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://www.koreatimes.co.kr/business/tech-science/20261028/power-equipment-makers-race-to-expand-us-capacity-amid-ai-boom",
          "title": "Power equipment makers race to expand US capacity amid AI boom (Korea Times, 28 Oct 2026)",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://powermag.com/transformers-in-2026-shortage-scramble-or-self-inflicted-crisis/",
          "title": "Transformers in 2026: Shortage, Scramble, or Self-Inflicted Crisis? (POWER, 2 Jan 2026)",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "hitachi-energy",
      "name": "Hitachi Energy",
      "url": "https://www.hitachienergy.com",
      "summary": "Zurich-based grid equipment maker investing over $1 billion in North American transformer capacity.",
      "hq": "CH",
      "tags": [
        "lpt",
        "gsu",
        "substation",
        "distribution-pad-mounted"
      ],
      "fields": {
        "transformer_types": "power; GSU; substation; pad-mounted distribution; HVDC",
        "us_manufacturing": true,
        "announced_capacity_expansions": "$1.5B global transformer investment through 2027 (POWER 2024; Utility Dive 2025); $500M in North America through 2027 (Utility Dive 2025); $457M South Boston, Virginia LPT plant, set to be the largest US LPT plant by 2028; $106M Alamo, Tennessee components expansion; CA$270M Varennes, Quebec buildout to nearly triple LPT output (POWER, Jan 2026).",
        "parent": "Hitachi, Ltd.",
        "verification_note": null,
        "headquarters": "Zurich, Switzerland"
      },
      "sources": [
        {
          "url": "https://www.hitachienergy.com",
          "title": "Hitachi Energy",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://en.wikipedia.org/wiki/Hitachi_Energy",
          "title": "Wikipedia: Hitachi Energy",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://powermag.com/transformers-in-2026-shortage-scramble-or-self-inflicted-crisis/",
          "title": "Transformers in 2026: Shortage, Scramble, or Self-Inflicted Crisis? (POWER, 2 Jan 2026)",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://www.powermag.com/the-transformer-crisis-an-industry-on-the-brink/",
          "title": "The Transformer Crisis: An Industry on the Brink (POWER, 26 Jun 2024)",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://www.utilitydive.com/news/electric-transformer-shortage-nrel-niac/738947/",
          "title": "Utility Dive, 12 Feb 2025",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "howard-industries",
      "name": "Howard Industries",
      "url": "https://www.howard.com",
      "summary": "Laurel, Mississippi maker of distribution transformers investing $237 million to expand across three Mississippi counties.",
      "hq": "US",
      "tags": [
        "distribution-pad-mounted",
        "distribution-pole"
      ],
      "fields": {
        "transformer_types": "distribution transformers",
        "us_manufacturing": true,
        "announced_capacity_expansions": "$236.95M expansion in Clarke, Jones and Simpson counties, Mississippi, with 450 new jobs (SuperTalk Mississippi, Jun 2025).",
        "parent": null,
        "verification_note": "howard.com did not load for us; product range beyond distribution transformers not verified.",
        "headquarters": "Laurel, Mississippi, US"
      },
      "sources": [
        {
          "url": "https://www.supertalk.fm/howard-industries-to-expand-mississippi-footprint-with-237m-investment/",
          "title": "Howard Industries to expand Mississippi footprint with $237M investment (SuperTalk Mississippi, 26 Jun 2025)",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "hyosung-heavy-industries",
      "name": "Hyosung Heavy Industries (Hyosung HICO)",
      "url": "https://www.hyosunghico.com",
      "summary": "Seoul-based group whose Memphis, Tennessee plant, bought from Mitsubishi Electric in 2019, builds 69 kV to 765 kV power transformers up to 2,250 MVA.",
      "hq": "KR",
      "tags": [
        "lpt",
        "substation",
        "gsu"
      ],
      "fields": {
        "transformer_types": "high-voltage power transformers 69-765 kV; up to 2,250 MVA",
        "us_manufacturing": true,
        "announced_capacity_expansions": "$300M expansion of the Memphis transformer plant (Korea Times, Oct 2026); HVDC transformer plant in Changwon, South Korea, scheduled for completion in 2027 (Wikipedia).",
        "parent": "Hyosung Group",
        "verification_note": null,
        "headquarters": "Seoul, South Korea"
      },
      "sources": [
        {
          "url": "https://www.hyosunghico.com",
          "title": "Hyosung HICO",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://en.wikipedia.org/wiki/Hyosung_Heavy_Industries",
          "title": "Wikipedia: Hyosung Heavy Industries",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://www.koreatimes.co.kr/business/tech-science/20261028/power-equipment-makers-race-to-expand-us-capacity-amid-ai-boom",
          "title": "Power equipment makers race to expand US capacity amid AI boom (Korea Times, 28 Oct 2026)",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "jst-power-equipment",
      "name": "JST Power Equipment",
      "url": "https://www.jstpower.com",
      "summary": "Lake Mary, Florida company making dry-type, pad-mount and power transformers up to 600 MVA and 500 kV.",
      "hq": "US",
      "tags": [
        "distribution-pad-mounted",
        "substation"
      ],
      "fields": {
        "transformer_types": "dry-type (cast resin, VPI); single- and three-phase pad-mount; power up to 600 MVA / 500 kV",
        "us_manufacturing": null,
        "announced_capacity_expansions": null,
        "parent": null,
        "verification_note": "Plant in Nogales, Mexico referenced; US production plant not confirmed.",
        "headquarters": "Lake Mary, Florida, US"
      },
      "sources": [
        {
          "url": "https://www.jstpower.com/about/",
          "title": "JST Power Equipment: About",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "koncar",
      "name": "Končar",
      "url": "https://www.koncar.hr/en",
      "summary": "Croatian electrical engineering group building transformers and generators installed in 140 countries.",
      "hq": "HR",
      "tags": [
        "lpt",
        "substation"
      ],
      "fields": {
        "transformer_types": "power transformers",
        "us_manufacturing": null,
        "announced_capacity_expansions": null,
        "parent": null,
        "verification_note": null,
        "headquarters": "Zagreb, Croatia"
      },
      "sources": [
        {
          "url": "https://www.koncar.hr/en",
          "title": "Končar",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "ls-electric",
      "name": "LS Electric",
      "url": "https://www.ls-electric.com",
      "summary": "South Korean power equipment maker whose products include transformers, circuit breakers and switchgear.",
      "hq": "KR",
      "tags": [
        "distribution-pad-mounted"
      ],
      "fields": {
        "transformer_types": "transformers (types not detailed)",
        "us_manufacturing": null,
        "announced_capacity_expansions": "$240M across US manufacturing by 2030, including its Utah switchgear plant and a Bastrop, Texas campus; extra-high-voltage transformer sales up 106% in Q3 2026 (Korea Times, Oct 2026).",
        "parent": "LS Group",
        "verification_note": "US plants named in our sources make switchgear; a US transformer line is not confirmed.",
        "headquarters": "Anyang, South Korea"
      },
      "sources": [
        {
          "url": "https://www.ls-electric.com",
          "title": "LS Electric",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://en.wikipedia.org/wiki/LS_Electric",
          "title": "Wikipedia: LS Electric",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://www.koreatimes.co.kr/business/tech-science/20261028/power-equipment-makers-race-to-expand-us-capacity-amid-ai-boom",
          "title": "Power equipment makers race to expand US capacity amid AI boom (Korea Times, 28 Oct 2026)",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "mgm-transformer",
      "name": "MGM Transformer",
      "url": "https://www.mgmtransformer.com",
      "summary": "US maker of dry-type and oil-filled transformers with five plants in California, Texas and Tijuana, Mexico.",
      "tags": [
        "distribution-pad-mounted"
      ],
      "fields": {
        "transformer_types": "dry-type; oil-filled",
        "us_manufacturing": true,
        "announced_capacity_expansions": "430,000-square-foot facility in Waco, Texas (POWER, Jan 2026).",
        "parent": "Forgent",
        "verification_note": null,
        "headquarters": null
      },
      "sources": [
        {
          "url": "https://www.mgmtransformer.com/about-us/",
          "title": "MGM Transformer: About",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://powermag.com/transformers-in-2026-shortage-scramble-or-self-inflicted-crisis/",
          "title": "Transformers in 2026: Shortage, Scramble, or Self-Inflicted Crisis? (POWER, 2 Jan 2026)",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "mitsubishi-electric",
      "name": "Mitsubishi Electric",
      "url": "https://www.mitsubishielectric.com",
      "summary": "Tokyo-based electrical equipment maker that sold its Memphis transformer plant to Hyosung in 2019; its US unit, Mitsubishi Electric Power Products, serves North American power systems.",
      "hq": "JP",
      "tags": [
        "lpt"
      ],
      "fields": {
        "transformer_types": "power transmission and distribution equipment",
        "us_manufacturing": false,
        "announced_capacity_expansions": null,
        "parent": null,
        "verification_note": "Its Memphis transformer plant was sold to Hyosung in 2019; no other US transformer plant found.",
        "headquarters": "Tokyo, Japan"
      },
      "sources": [
        {
          "url": "https://www.mitsubishielectric.com",
          "title": "Mitsubishi Electric",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://www.meppi.com",
          "title": "Mitsubishi Electric Power Products",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://en.wikipedia.org/wiki/Mitsubishi_Electric",
          "title": "Wikipedia: Mitsubishi Electric",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://en.wikipedia.org/wiki/Hyosung_Heavy_Industries",
          "title": "Wikipedia: Hyosung Heavy Industries (Hyosung HICO)",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "pennsylvania-transformer",
      "name": "Pennsylvania Transformer Technology",
      "url": "https://www.patransformer.com",
      "summary": "Canonsburg, Pennsylvania maker of oil-filled power transformers from 500 kVA to 750 MVA, through 765 kV.",
      "hq": "US",
      "tags": [
        "lpt",
        "substation",
        "gsu"
      ],
      "fields": {
        "transformer_types": "oil-filled power transformers 500 kVA-750 MVA, through 765 kV",
        "us_manufacturing": true,
        "announced_capacity_expansions": null,
        "parent": null,
        "verification_note": "Second US plant in Raeford, North Carolina.",
        "headquarters": "Canonsburg, Pennsylvania, US"
      },
      "sources": [
        {
          "url": "https://www.patransformer.com/about-us/",
          "title": "Pennsylvania Transformer Technology: About",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "prolec-ge",
      "name": "Prolec GE (GE Vernova)",
      "url": "https://prolec.energy",
      "summary": "Mexican transformer maker, now wholly owned by GE Vernova, with US plants in Waukesha and Shreveport and a new medium-power plant planned for Goldsboro, North Carolina.",
      "tags": [
        "lpt",
        "gsu",
        "substation",
        "distribution-pad-mounted",
        "distribution-pole"
      ],
      "fields": {
        "transformer_types": "pole-type; single- and three-phase pad-mounted; network; GSU; substation; autotransformers; shunt reactors; voltage regulators",
        "us_manufacturing": true,
        "announced_capacity_expansions": "More than $300M across new and expanded sites, including a medium-power plant in Goldsboro, North Carolina, and more pad-mount capacity in Louisiana and Mexico (POWER, Jan 2026); $1B of Prolec GE capex planned for 2026–2028 and $5B of GE Vernova’s equipment backlog (GE Vernova Q3 2026 results).",
        "parent": "GE Vernova",
        "verification_note": "US sites listed: Prolec Waukesha, Prolec Shreveport.",
        "headquarters": "Apodaca, Nuevo León, Mexico"
      },
      "sources": [
        {
          "url": "https://prolec.energy",
          "title": "Prolec",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://en.wikipedia.org/wiki/Prolec_GE",
          "title": "Wikipedia: Prolec GE",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://www.gevernova.com",
          "title": "GE Vernova",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://powermag.com/transformers-in-2026-shortage-scramble-or-self-inflicted-crisis/",
          "title": "Transformers in 2026: Shortage, Scramble, or Self-Inflicted Crisis? (POWER, 2 Jan 2026)",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://www.sec.gov/Archives/edgar/data/0001996810/000199681026000162/gevpressrelease3q26.htm",
          "title": "GE Vernova third quarter 2026 results (28 Oct 2026)",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "schneider-electric",
      "name": "Schneider Electric",
      "url": "https://www.se.com",
      "summary": "French electrical group with a North American transformer business that is investing hundreds of millions of dollars in capacity.",
      "hq": "FR",
      "tags": [
        "distribution-pad-mounted"
      ],
      "fields": {
        "transformer_types": "distribution transformers",
        "us_manufacturing": null,
        "announced_capacity_expansions": "Investing hundreds of millions of dollars in capacity expansion (Jeffrey DeSain, GM North American Transformer Business, Utility Dive 2025).",
        "parent": null,
        "verification_note": "Transformer types and US plants not verified in this pass.",
        "headquarters": "France"
      },
      "sources": [
        {
          "url": "https://www.se.com",
          "title": "Schneider Electric",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://www.utilitydive.com/news/electric-transformer-shortage-nrel-niac/738947/",
          "title": "Utility Dive, 12 Feb 2025",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "sgb-smit",
      "name": "SGB-SMIT Group",
      "url": "https://www.sgb-smit.com",
      "summary": "Europe's self-described number one medium-sized transformer maker, with plants in Germany, the Netherlands, the US and Romania.",
      "tags": [
        "lpt",
        "gsu",
        "substation",
        "distribution-pad-mounted"
      ],
      "fields": {
        "transformer_types": "large and medium power; GSU; oil distribution 50-2,500 kVA; cast resin; VPI",
        "us_manufacturing": true,
        "announced_capacity_expansions": "Acquired Southwest Electric Co. in the US (Jan 2025); opened the SGB-ALFA factory in Botoșani, Romania (Jul 2026); took a majority stake in COMEL Transformatori (Jul 2026) - headlines on sgb-smit.com.",
        "parent": null,
        "verification_note": "US sites: Louisville (SGB-USA), Oklahoma City and Nashville (Southwest Electric Co.).",
        "headquarters": null
      },
      "sources": [
        {
          "url": "https://www.sgb-smit.com",
          "title": "SGB-SMIT Group",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "siemens-energy",
      "name": "Siemens Energy",
      "url": "https://www.siemens-energy.com",
      "summary": "German energy technology group building its first US large power transformer plant in Charlotte, North Carolina.",
      "hq": "DE",
      "tags": [
        "lpt",
        "gsu",
        "substation"
      ],
      "fields": {
        "transformer_types": "large power; GSU; mobile/rapid-response",
        "us_manufacturing": true,
        "announced_capacity_expansions": "$150M Charlotte, North Carolina LPT plant: 57 LPTs per year, 15,000 MVA (POWER 2024); production expected early 2027 (POWER, Jan 2026).",
        "parent": null,
        "verification_note": null,
        "headquarters": "Germany"
      },
      "sources": [
        {
          "url": "https://www.siemens-energy.com",
          "title": "Siemens Energy",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://en.wikipedia.org/wiki/Siemens_Energy",
          "title": "Wikipedia: Siemens Energy",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://www.powermag.com/the-transformer-crisis-an-industry-on-the-brink/",
          "title": "The Transformer Crisis: An Industry on the Brink (POWER, 26 Jun 2024)",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://powermag.com/transformers-in-2026-shortage-scramble-or-self-inflicted-crisis/",
          "title": "Transformers in 2026: Shortage, Scramble, or Self-Inflicted Crisis? (POWER, 2 Jan 2026)",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "southwest-electric",
      "name": "Southwest Electric Co.",
      "url": "https://www.sgb-smit.com",
      "summary": "US transformer company in Oklahoma City and Nashville, owned by SGB-SMIT since 2025.",
      "hq": "US",
      "tags": [
        "substation",
        "distribution-pad-mounted"
      ],
      "fields": {
        "transformer_types": null,
        "us_manufacturing": true,
        "announced_capacity_expansions": null,
        "parent": "SGB-SMIT Group",
        "verification_note": "Product range not verified in this pass.",
        "headquarters": "Oklahoma City, Oklahoma, US"
      },
      "sources": [
        {
          "url": "https://www.sgb-smit.com",
          "title": "SGB-SMIT Group",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "tamini",
      "name": "Tamini Trasformatori",
      "url": "https://www.tamini.it/en/",
      "summary": "Italian transformer maker since 1916 that says it built the largest transformer ever made in Italy (670 MVA).",
      "hq": "IT",
      "tags": [
        "lpt",
        "gsu"
      ],
      "fields": {
        "transformer_types": "power transformers; industrial and rectifier transformers",
        "us_manufacturing": null,
        "announced_capacity_expansions": null,
        "parent": null,
        "verification_note": null,
        "headquarters": "Italy"
      },
      "sources": [
        {
          "url": "https://www.tamini.it/en/",
          "title": "Tamini",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "tbea",
      "name": "TBEA",
      "url": "https://www.tbea.com",
      "summary": "One of China's major producers of power transformers, also active in transmission and renewable projects.",
      "hq": "CN",
      "tags": [
        "lpt",
        "substation"
      ],
      "fields": {
        "transformer_types": "power transformers",
        "us_manufacturing": false,
        "announced_capacity_expansions": null,
        "parent": null,
        "verification_note": "us_manufacturing=false means no US plant found; not a confirmed negative.",
        "headquarters": "China"
      },
      "sources": [
        {
          "url": "https://www.tbea.com",
          "title": "TBEA",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://en.wikipedia.org/wiki/TBEA",
          "title": "Wikipedia: TBEA",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "toshiba",
      "name": "Toshiba",
      "url": "https://www.global.toshiba",
      "summary": "Japanese industrial group that builds transformers and switchgear, including at its Hyderabad, India plant.",
      "hq": "JP",
      "tags": [
        "lpt"
      ],
      "fields": {
        "transformer_types": "transformers (transmission and distribution)",
        "us_manufacturing": false,
        "announced_capacity_expansions": null,
        "parent": null,
        "verification_note": "No US transformer plant found. Transformer production confirmed at Toshiba Transmission & Distribution Systems (India), Hyderabad.",
        "headquarters": "Tokyo, Japan"
      },
      "sources": [
        {
          "url": "https://www.global.toshiba",
          "title": "Toshiba",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://en.wikipedia.org/wiki/Toshiba",
          "title": "Wikipedia: Toshiba",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "virginia-transformer",
      "name": "Virginia Transformer Corp",
      "url": "https://www.vatransformer.com",
      "summary": "Transformer maker that describes itself as the largest US-owned transformer manufacturer in North America, building units from 300 kVA up to 500 MVA and 525 kV.",
      "tags": [
        "lpt",
        "substation",
        "gsu",
        "distribution-pad-mounted"
      ],
      "fields": {
        "transformer_types": "core-type liquid-filled 300 kVA-400 MVA/525 kV; shell-type 60-500 MVA/500 kV; dry-type 300 kVA-20 MVA",
        "us_manufacturing": true,
        "announced_capacity_expansions": "$40M expansion in Georgia to raise output 70% (POWER, Jan 2026); opened a Mexico plant in 2023 for units up to 100 MVA (POWER 2024).",
        "parent": null,
        "verification_note": null,
        "headquarters": null
      },
      "sources": [
        {
          "url": "https://www.vatransformer.com/about-us/",
          "title": "Virginia Transformer: About",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://powermag.com/transformers-in-2026-shortage-scramble-or-self-inflicted-crisis/",
          "title": "Transformers in 2026: Shortage, Scramble, or Self-Inflicted Crisis? (POWER, 2 Jan 2026)",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://www.powermag.com/the-transformer-crisis-an-industry-on-the-brink/",
          "title": "The Transformer Crisis: An Industry on the Brink (POWER, 26 Jun 2024)",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "weg",
      "name": "WEG",
      "url": "https://www.weg.net",
      "summary": "Brazilian electrical engineering group adding transformer capacity in Missouri.",
      "hq": "BR",
      "tags": [
        "lpt",
        "substation",
        "distribution-pad-mounted"
      ],
      "fields": {
        "transformer_types": "transformers",
        "us_manufacturing": true,
        "announced_capacity_expansions": "Adding transformer capacity in Missouri (POWER, Jan 2026).",
        "parent": null,
        "verification_note": null,
        "headquarters": "Jaraguá do Sul, Brazil"
      },
      "sources": [
        {
          "url": "https://www.weg.net",
          "title": "WEG",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://en.wikipedia.org/wiki/WEG_Industries",
          "title": "Wikipedia: WEG S.A.",
          "accessed": "2026-11-09"
        },
        {
          "url": "https://powermag.com/transformers-in-2026-shortage-scramble-or-self-inflicted-crisis/",
          "title": "Transformers in 2026: Shortage, Scramble, or Self-Inflicted Crisis? (POWER, 2 Jan 2026)",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    },
    {
      "id": "wilson-power-solutions",
      "name": "Wilson Power Solutions",
      "url": "https://www.wilsonpowersolutions.co.uk",
      "summary": "UK maker of power and distribution transformers, including amorphous-core units up to 3 MVA.",
      "hq": "GB",
      "tags": [
        "distribution-pad-mounted"
      ],
      "fields": {
        "transformer_types": "distribution up to 5 MVA; amorphous-core; power",
        "us_manufacturing": false,
        "announced_capacity_expansions": null,
        "parent": null,
        "verification_note": "us_manufacturing=false means no US plant found.",
        "headquarters": "United Kingdom"
      },
      "sources": [
        {
          "url": "https://www.wilsonpowersolutions.co.uk",
          "title": "Wilson Power Solutions",
          "accessed": "2026-11-09"
        }
      ],
      "verifiedAt": "2026-11-09",
      "featured": false
    }
  ]
}