Table 1: Auotune calibration surpasses ASHRAE G14 requirements. Results from a 20,000+ building calibration study, involving building types representing 80% of U.S. Commercial Floor Space and 47-470 tunable inputs each, show predication of building electrical use within 4%.
| | ASHRAE G14 Requires | Autotune Results |
| Monthly utility data | CV(RMSE) | 15% | 1.20% |
| NMBE | 5% | 0.35% |
| Hourly utility data | CV(RMSE) | 30% | 3.65% |
| NMBE | 10% | 0.35% |