Do steel buildings save energy?

[Moving]

Annie Lööw said in Almedalen that "we got Facebook to build in Luleå and it is built with Swedish steel, it saves energy."

A new argument I have never seen before since they built there for the cold and electricity,
http://www.svd.se/sa-mycket-el-drar-facebook-i-lulea
as well as they received 105 million in subsidies and are to receive 25 more.
http://www.svd.se/regeringens-bidrag-till-facebook-hojdes-kraftigt

However, I know that concrete harms the climate, so steel might be better.

 

[Troberg]

Probably more because the steel didn't need to be transported so far.

 

[Moving]

Probably rather because the steel didn't need to be transported so far.

Can't they make concrete there and does SSAB have construction steel there?