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US Solar Energy Consumption vs US Bank Lending Interest Rate

US Solar Energy Consumption and US Bank Lending Interest Rate correlate at r = -0.44 over 39 years (1983–2021), p = 0.0047. With the time trend removed, r = +0.31. Direction flips without the trend.

Verdict: Direction flips without the trend. The raw correlation is -0.44, but once each series' time trend is removed it becomes 0.31. The year-to-year movements run the opposite way to the long-run trends, so the headline number is misleading.

Pearson r
-0.44
p-value
0.0047
Years compared (n)
39 (1983–2021)
95% confidence interval
-0.67 to -0.15
Correlation with the time trend removed
+0.31

Sources

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Correlation does not imply causation. How the verdict is worked out.