| Bandwidth (km) | RD Estimate | (Std. Error) | z-stat | p-value | CI Lower | CI Upper |
|---|---|---|---|---|---|---|
| ALL GENERATORS | ||||||
| 50 | -32.94 | (20.57) | -1.45 | 0.148 | -70.06 | 10.55 |
| 100 | -14.72** | (11.55) | -3.14 | 0.002 | -58.87 | -13.61 |
| 150 | -11.57* | (9.36) | -2.55 | 0.011 | -42.19 | -5.51 |
| 200 | -10.45* | (8.16) | -2.32 | 0.021 | -34.89 | -2.90 |
| THERMAL ONLY | ||||||
| 50 | -40.84 | (57.10) | -1.45 | 0.148 | -194.57 | 29.27 |
| 100 | 0.93 | (29.75) | -1.71 | 0.087 | -109.24 | 7.39 |
| 150 | 15.12 | (22.07) | -1.00 | 0.317 | -65.33 | 21.20 |
| 200 | 18.04 | (19.40) | -0.21 | 0.830 | -42.19 | 33.87 |
| Note: Dependent variable: Nameplate capacity per generator (MW). Cutoff at intrastate RTO boundary. Robust standard errors in parentheses. Source: EIA Form 860 (2024 vintage). | ||||||
| * p < 0.05, ** p < 0.01, *** p < 0.001 |