You Do Need power plug adapter while traveling from Dominican Republic to Greenland.

Here is Why You Need An Adapter

The outlet and plug type used in Greenland are C, E, F and K and in Dominican Republic are A, B and C. This is how they look like.

Dominican Republic

In Dominican Republic, outlets of type A, B and C are in use.

Type A

Type B

Type C

Greenland

In Greenland, outlets of type C, E, F and K are in use.

Type C

Type E

Type F

Type K