Correct var-name

Author: bouwew

plugwise/helper.py

@@ -951,7 +951,7 @@ def _power_data_peak_value(self, loc):
         if "gas" in loc.measurement:
             loc.key_string = f"{loc.measurement}_{log_found}"
         # Don't create net_elec_interval sensor!
-        if "electricity" in log_found and "interval" not in log_found:
+        if "electricity" in loc.measurement and "interval" not in log_found:
             loc.net_string = f"net_electricity_{log_found}"
         val = loc.logs.find(loc.locator).text
         log_date = parse(loc.logs.find(loc.locator).get("log_date"))