Being further north makes a little bit of difference but not as much as people think. Winters are darker, obviously. So, that means solar isn't great then. But summers have much more daylight. Those long summer days are awesome for solar energy. From early morning until late at night basically. And obviously, Danish consumers like cutting a bit off their electricity bills just like people elsewhere.
Another issue is the angle of the sun. The light loses some energy having to pass through more of our atmosphere compared to blasting straight down at the equator. But otherwise, the difference in distance to the sun is negligible.
And of course heat pumps are pretty popular in Denmark as well. As are EVs. People that have those, would benefit a lot from solar panels.