{
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "attribution": "kWh Index (https://kwhindex.com)",
  "computed": "2026-09-17",
  "finding": "Certified cold-climate heat pumps holding 70% or more of capacity at 5F",
  "certified_with_data": 9168,
  "holding_70pct": 8791
}