{
 "id": "8.02",
 "slug": "reciprocating-engines-and-engine-microgrids",
 "url": "/parts/power-generation-and-energy-supply/reciprocating-engines-and-engine-microgrids",
 "name": "Reciprocating engines & engine microgrids",
 "qualifiers": null,
 "layer": {
  "id": 8,
  "name": "Power generation & energy supply"
 },
 "parent_id": null,
 "children": [],
 "summary": "Diesel, natural-gas, or dual-fuel reciprocating engines assembled into modular microgrids for onsite or bridge power at a data center site.",
 "description_md": "Reciprocating engines are smaller, faster-to-deploy alternatives to gas turbines, packaged in modular units that can be trucked in and paired into microgrids for bridge power while a site waits on grid interconnection, or as permanent behind-the-meter generation at smaller scale. They sit alongside gensets and gas turbines (Layer 8.01) in a facility's onsite generation mix and feed the same switchgear and transformers described in Layer 7. AI-driven interconnection delays have pulled reciprocating-engine microgrids from a niche backup role into a stopgap for getting racks powered before a permanent grid connection or turbine order arrives. Investors should watch how much of this demand converts into repeat orders for engine OEMs versus staying a one-off bridge, and whether the specialist microgrid integrators can scale delivery without the engine makers disintermediating them.",
 "ai_delta": "AI campuses facing multi-year grid interconnection queues increasingly deploy reciprocating-engine microgrids as bridge power to energize racks before permanent utility service arrives.",
 "bottleneck_status": null,
 "scale_tiers": [
  "hyperscale_building",
  "ai_campus",
  "gw_class"
 ],
 "density_modes": [
  "any"
 ],
 "scale_notes": "Scales from a handful of modular units for bridge power at a single building up to large microgrid arrays at campus scale; less common at enterprise-scale sites that rely on grid power.",
 "flow": [
  "power"
 ],
 "companies": [
  {
   "company_id": "caterpillar",
   "name": "Caterpillar",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "CAT",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "cummins",
   "name": "Cummins",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "CMI",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "generac",
   "name": "Generac",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "GNRC",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "kawasaki-heavy",
   "name": "Kawasaki Heavy",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "7012.T",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "man-energy-solutions",
   "name": "MAN Energy Solutions",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "subsidiary",
   "ticker": null,
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "mitsubishi-heavy",
   "name": "Mitsubishi Heavy Industries",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "7011.T",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "rolls-royce",
   "name": "Rolls-Royce",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "RR.L",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "southern-company",
   "name": "Southern Company",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "SO",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "wartsila",
   "name": "Wärtsilä",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "WRT1V.HE",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "enchanted-rock",
   "name": "Enchanted Rock",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "private",
   "ticker": null,
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "innio-jenbacher",
   "name": "INNIO Jenbacher",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "private",
   "ticker": null,
   "product_note": null,
   "note": "Advent",
   "source_url": null
  },
  {
   "company_id": "mainspring",
   "name": "Mainspring",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "private",
   "ticker": null,
   "product_note": null,
   "note": "linear generators",
   "source_url": null
  },
  {
   "company_id": "voltagrid",
   "name": "VoltaGrid",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "private",
   "ticker": null,
   "product_note": null,
   "note": null,
   "source_url": null
  }
 ]
}