import numpy as np

strom = np.loadtxt('http://techteach.no/python/files/strom.txt',
                   dtype='float')

ant_min = 0

for kwh in strom:
    
    if  kwh > 0.02:
        
        ant_min += 1

print("Totalt var det", ant_min, 
      "minutter hvor forbruket var hoyere enn 0,02 kwh")