OREANDA-NEWS. November 28, 2011. Azerbaijan’s national energy operator OJSC Azerenerji keeps on gladdening with unique energy sites.

OJSC reports that testing of 110-kilovott station №227 has been finished and prepared for exploitation in Baku.

" The substation is unique for not only South Caucasus but also for all the Central Asia as it is located under the ground",- the report says.