Economic affairs minister Maria van der Hoeven is to give the energy regulator NMa more powers to cut fees if it appears that energy firms are earning too much on the cost of transporting electricity.

The measure will be sent to parliament next year.
But there is no need for an independent investigation into the cost at the moment, Van der Hoeven told MPs on Wednesday.
The opposition green party GroenLinks called for the probe last week following complaints from the consumers association and commercial energy users lobby group VEMW that power prices are too high.
The minister pointed out that that transport tariff for electricity, which is set by the regulator, will go down 4.8% in the coming two years.