{
 "id": "7.13b",
 "slug": "backup-generation-gensets-fuel-systems-hvo-aftertreatment",
 "url": "/parts/electrical-power-distribution-grid-to-rack/backup-generation-gensets-fuel-systems-hvo-aftertreatment",
 "name": "Aftertreatment",
 "qualifiers": null,
 "layer": {
  "id": 7,
  "name": "Electrical: power distribution (grid to rack)"
 },
 "parent_id": "7.13",
 "children": [],
 "summary": "Emissions-control equipment fitted to backup generator engines to meet air-quality permitting requirements where they run.",
 "description_md": null,
 "ai_delta": null,
 "bottleneck_status": null,
 "scale_tiers": [],
 "density_modes": [],
 "scale_notes": null,
 "flow": [
  "power"
 ],
 "companies": [
  {
   "company_id": "johnson-matthey",
   "name": "Johnson Matthey",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "JMAT.L",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "miratech",
   "name": "Miratech",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "private",
   "ticker": null,
   "product_note": null,
   "note": null,
   "source_url": null
  }
 ]
}