De or het energieliberalisering?

The correct Dutch article is:

de energieliberalisering

Rule Words ending in -ing: almost always de. See the rule

How to use energieliberalisering

the energieliberaliseringde energieliberalisering
this energieliberaliseringdeze energieliberalisering
that energieliberaliseringdie energieliberalisering
our energieliberaliseringonze energieliberalisering
your energieliberaliseringjouw energieliberalisering
every energieliberaliseringelke energieliberalisering
which energieliberalisering?welke energieliberalisering?
a big energieliberalisering / the big energieliberaliseringeen grote energieliberalisering, de grote energieliberalisering