Table C5 Statistical analysis: All predictors
PV Count Per Household | PV-to-Roof Ratio | |||
|---|---|---|---|---|
Model 31 | Model 32 | Model 33 | Model 34 | |
Predictors | Coef. (SE) | Coef. (SE) | Coef. (SE) | Coef. (SE) |
% Tree-to-Land Area | 0.389 (0.545) | 2.057 (0.878)* | −0.550 (0.115)*** | −0.476 (0.175)** |
% Tree-to-Land Area2 | –51.098 (17.448)* | –145.512 (36.07)** | 2.666 (3.669) | 1.140 (7.177) |
Solar Radiation | 0.068 (0.095) | 0.207 (0.224) | 0.005 (0.020) | −0.054 (0.045) |
Solar Radiation2 | −0.006 (0.008) | −0.018 (0.019) | 0.001 (0.002) | 0.004 (0.004) |
Median HH Income | 0.001 (0.001) | 0.001 (0.001)** | 0.001 (0.001) | −0.001 (0.001) |
Median HH Income2 | −0.001 (0.001) | −0.001 (0.001)* | 0.001 (0.001)* | 0.001 (0.001) |
Median Age | −0.001 (0.001) | 0.001 (0.001) | −0.001 (0.001)*** | −0.001 (0.001)** |
% 65+ | 0.001 (0.017) | −0.017 (0.021) | 0.001 (0.004) | 0.003 (0.004) |
% Bachelor+ | 0.032 (0.018)† | −0.023 (0.024) | 0.004 (0.004) | −0.003 (0.005) |
% Renters | −0.026 (0.012)* | −0.039 (0.015)** | 0.003 (0.003) | 0.001 (0.003) |
Year Structure Built | 0.120 (0.017)*** | 0.089 (0.022)*** | 0.017 (0.004)*** | 0.010 (0.004)* |
Year Structure Built2 | −0.001 (0.001)*** | −0.001 (0.001)*** | −0.001 (0.001)*** | −0.001 (0.001)* |
Avg. No. Bedrooms | 0.002 (0.005) | 0.001 (0.006) | −0.007 (0.001)*** | −0.009 (0.001)*** |
Median Home Value | 0.001 (0.001)*** | 0.001 (0.001)*** | 0.001 (0.001)*** | 0.001 (0.001)*** |
Rurality | −0.004 (0.001)** | 0.004 (0.003) | −0.001 (0.001)*** | −0.001 (0.001) |
% Dem. Voters | 0.082 (0.016)*** | 0.166 (0.029)*** | 0.010 (0.003)** | 0.013 (0.006)* |
% African American | −0.019 (0.023) | −0.041 (0.026) | 0.017 (0.005)*** | 0.007 (0.005) |
% Hispanic | −0.0145 (0.013) | −0.012 (0.018) | −0.004 (0.003) | −0.004 (0.004) |
% Asian | 0.205 (0.036)*** | 0.140 (0.041)*** | 0.017 (0.008)* | 0.005 (0.009) |
% Other Race | 0.076 (0.036)* | 0.068 (0.052) | 011 (0.007) | 0.017 (0.012) |
Transmission Volt. | −0.004 (0.001)*** | −0.001 (0.003) | 0.001 (0.001) | 0.001 (0.001) |
Transmission Length | 0.001 (0.001) | 0.001 (0.002) | −0.001 (0.001) | −0.001 (0.001) |
Muni. Utilities | −0.055 (0.006)*** | −0.061 (0.009)** | −0.004 (0.001)*** | −0.004 (0.002)† |
Rural Co–ops. | −0.046 (0.005)*** | −0.013 (0.011) | −0.007 (0.001)*** | −0.006 (0.002)** |
Resident. Elec. Rate | −0.921 (0.142)*** | 0.429 (0.351) | 0.013 (0.030) | 0.235 (0.070)*** |
Commerc. Elec. Rate | 0.975 (0.167)*** | –1.246 (0.644)† | 0.015 (0.035) | −0.351 (0.128)** |
Solar Mandate | 0.015 (0.009)† | 0.005(0.002)** | ||
Net Metering | 0.033 (0.011)** | 0.006 (0.001)* | ||
SolSmart Awardee | −0.004 (0.007) | −0.001 (0.001) | ||
Online Permitting | -0.001 (0.006)* | −0.001 (0.001) | ||
Sameday Inp. Per. | −0.008 (0.008) | −0.001 (0.002) | ||
Per. & Pre–Inst. Days | −0.002 (0.001)*** | −0.001 (0.001)*** | ||
Drought Risk | −0.001 (0.001) | −0.011 (0.002)*** | 0.001 (0.001) | −0.001 (0.001)** |
Wildfire Risk | −0.001 (0.001)*** | 0.001 (0.001)† | −0.001 (0.001) | 0.001 (0.001)*** |
Hail Risk | −0.001 (0.001)*** | −0.001 (0.001)** | 0.001 (0.001) | 0.001 (0.001) |
Winter Weather Risk | 0.001 (0.001)* | −0.001 (0.001) | 0.001 (0.001)*** | 0.001 (0.001) |
Strong Wind Risk | 0.002 (0.001)*** | −0.004 (0.001)*** | 0.001 (0.001) | 0.001 (0.001) |
Tornado Risk | −0.002 (0.001)*** | −0.003 (0.001)*** | −0.001 (0.001)*** | 0.001 (0.001) |
% Below Poverty | −0.001 (0.021) | −0.007 (0.027) | 0.014 (0.004)** | 0.015 (0.005) |
% Disability | 0.001 (0.001) | −0.001 (0.001) | −0.001(0.001)† | −0.001 (0.001)* |
% Single Parent | 0.001 (0.001) | 0.001 (0.001) | -0.001(0.001) | −0.001 (0.001) |
% Limit. English | −0.001 (0.001) | −0.001 (0.001) | 0.001 (0.001) | 0.001 (0.001) |
% 10+ Unit Housing | −0.001 (0.001)*** | −0.001 (0.001)*** | 0.001 (0.001)*** | 0.001 (0.001)*** |
% Mobile Homes | −0.001 (0.001) | 0.001 (0.001) | 0.001 (0.001)*** | −0.001 (0.001)*** |
% Ppl. > Rooms | −0.001 (0.001) | 0.001 (0.001) | 0.001 (0.001)** | 0.001 (0.001)*** |
% No Vehicle | −0.001 (0.001) | −0.001 (0.001) | 0.001 (0.001) | −0.001 (0.001) |
% Unemployed | 0.001 (0.001) | 0.001 (0.001) | 0.001 (0.001)*** | 0.001 (0.001)* |
No. of block groups | 3441 | 2328 | 3441 | 2328 |
\(R^{2}\) | 0.262 | 0.329 | 0.271 | 0.348 |