allow negative percentage surcharge

fix #66
mampfes · Nov 24, 2023 · 17b8c73 · 17b8c73
1 parent aebdac1
commit 17b8c73
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/custom_components/epex_spot/SourceShell.py b/custom_components/epex_spot/SourceShell.py
@@ -132,7 +132,7 @@ def to_net_price(self, price_eur_per_mwh):
         tax = self._config_entry.options.get(CONF_TAX, DEFAULT_TAX)
 
         net_p = price_eur_per_mwh / 10  # convert from EUR/MWh to ct/kWh
-        net_p = net_p + abs(net_p * surcharge_pct / 100)
+        net_p = net_p + abs(net_p) * surcharge_pct / 100
         net_p += surcharge_abs
         net_p *= 1 + (tax / 100)