They are using less electricity than expected. The article neglects to specify whether this is due to higher than expected efficiency, or higher than expected d

They are using less electricity than expected. The article neglects to specify whether this is due to higher than expected efficiency, or higher than expected downtime. Not that there is necessarily a problem with the technology, but energy efficiency estimates should be expected to already be quite accurate, all the technology is super old. If the efficiency is not in fact higher, I think the article is written a little disingenuously, they should really be more specific.