Square Enix have had their servers for both Final Fantasty XI and Final Fantasy XIV offline since March 13, due to the Japanese earthquake and tsunami. The developer reports that the servers take up 11.6 percent of its Tokyo office’s energy use, thus they had to be halted to conserve energy.
That ends this Friday though, as the servers go back online. To make up for the energy usage, Square report that they’ll be shutting off air conditioning and using other power conservation techniques. That doesn’t guarantee that servers will remain online going forward though.
As promised, FFXI won’t be billed for their April subscription.