The second pair of arrays was launched and installed in September 2006 during STS-115, but they didn't provide electricity until STS-116 in December 2006 when the station got an electrical rewiring.
Druhý pár bol vynesený a inštalovaný v septembri 2006 počas misie STS-115, ale neposkytoval energiu až kým posádka misie STS-116 v decembri 2006 neprekáblovala elektrické vedenie na stanici.