diff --git a/config.yaml b/config.yaml
index a724df72..b671f48b 100644
--- a/config.yaml
+++ b/config.yaml
@@ -117,7 +117,14 @@ renewable:
         azimuth: 180.
     # ScholzPhd Tab 4.3.1: 170 MW/km^2
     capacity_per_sqkm: 1.7
-    correction_factor: 0.877
+    correction_factor: 0.854337
+    # Determined by comparing uncorrected area-weighted full-load hours to those
+    # published in Supplementary Data to
+    # Pietzcker, Robert Carl, et al. "Using the sun to decarbonize the power
+    # sector: The economic potential of photovoltaics and concentrating solar
+    # power." Applied Energy 135 (2014): 704-720.
+    # Comparison is shown in resources/country_flh_aggregated_solar.csv
+
     corine: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,
              14, 15, 16, 17, 18, 19, 20, 26, 31, 32]
     natura: true