Start-stop practice in small Norwegian hydropower plants

Start-stop practice was analysed in 256 Norwegian hydropower plants in conjunction to a set of characteristics. The plants were on grid 2005 - 2014, and production data from 2015. Number of starts were counted for each plant finding a higher number in Kaplan turbines than in Francis and Pelton. Number of starts was not dependent on having a license to practice start-stop, and were related to the annual mean river discharge being negative for Francis, dome-shaped for Pelton, and no association for Kaplan