average energy savings from retro-/re-commissioning of an existing facility (often more)
10–20%observed
| Value kind | observed — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range. |
|---|---|
| As of | 2023 |
| Source | U.S. DOE FEMP / LBNL retro-commissioning studies · Retro-commissioning discussion: whole-building energy savings of 10%–20% quickly and inexpensively |
| Review | checking…review by 2026-09-13 · standard cadence |
| Recorded changes | last 2026-06-29 |
| Claim id | average-energy-savings-from-retro-re |
Where the guide uses it
Not quoted in a chapter yet; it is kept in the curated register.
← Full numbers register — every date-stamped figure in the guide, with revision history.