can also be performed and lighting policies may be adjusted for productivity rather than energy savings if this should be the policy of the building operator compromise workflow solutions can also be found with this kind of system such as optimizing for performance during some time periods and for energy efficiency during other periods in step 1460 the server may update reports upon completion the server network may enter a low power sleep mode 1462 and wake up upon request or after a pre determined time wake up upon request may be initiated upon installation of a new device step 1464 allows for installation of a new device step 1466 allows for new device registration in the absence of new devices the program can return to point u201c a u201d in fig5 a step 1408 labeled u201c b u201d identified a situation where a new device has entered the system but the device is not a portable device this could be for example a situation where a new light fixture has been installed however this new fixture may be added to the system according to steps illustrated in fig5 a step 1500 may determine whether the new device is a power line device if it is the device may be registered 1508 in the master database and the server process may return to point u201c a u201d in fig5 if there was no new power line device but if a device was removed the server may determine whether a device is to be decommissioned 1502 if the device is to be decommissioned the server may remove it from the database if the device is not to be decommissioned then the server.