Under the decree, operators of those plants can choose options including having their overall support cut by 10%, or amending the length of the support term.

As smaller PV plants are exempt, the measure would hit only 8,600 out of 200,000 PV operators, but those plants above 200kW are receiving 60% of all support, the ministries say.

The decree still needs to be approved by parliament and turned into a regular law.