De or het stroomlevering?

The correct Dutch article is:

de stroomlevering

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

How to use stroomlevering

the stroomleveringde stroomlevering
this stroomleveringdeze stroomlevering
that stroomleveringdie stroomlevering
our stroomleveringonze stroomlevering
your stroomleveringjouw stroomlevering
every stroomleveringelke stroomlevering
which stroomlevering?welke stroomlevering?
a big stroomlevering / the big stroomleveringeen grote stroomlevering, de grote stroomlevering