90-ton Mammoth AHU. Same-season pre/post (Oct→Nov 2015). 1-minute Niagara logger. CFM=10,000 back-calculated from vendor enthalpy. Primary analysis unit.
Mean EER computed within 5°F ambient bins. The improvement scales with thermal load — the coating does more work when the coil is working harder.
| Bin (°F) | EER pre | EER post | Δ% | n pre / post |
|---|---|---|---|---|
| 55-60 | 7.84 | 8.04 |
+2.5%
|
47 / 23 |
| 60-65 | 8.86 | 11.43 |
+29.0%
|
875 / 829 |
Mean total power consumption within temperature bins. Lower kW post-treatment = genuine efficiency gain.
| Bin (°F) | kW pre | kW post | Δ% | n pre / post |
|---|---|---|---|---|
| 55-60 | 20.5 | 19.6 |
-4.6%
|
53 / 26 |
| 60-65 | 24.8 | 27.0 |
+9.1%
|
879 / 830 |
NOAA KLGA-validated OAT. OAT-matched recalibrated kW/A factor (0.2659, not Don's 0.3051 which was biased by weather distribution). Weighted kW delta across 5 OAT bins.
| Bin (°F) | kW Baseline | kW Persistence | Δ% | n base / pers |
|---|---|---|---|---|
| 55-60 | 19.6 | 5.2 |
-73.6%
|
26 / 938 |
| 60-65 | 27.0 | 27.1 |
+0.4%
|
830 / 1,709 |
Only 2 overlapping OAT bins (55–65°F). Same-season but limited temperature coverage (~25% of annual cooling hours). Fleet savings validated by NYSERDA PIR.