Planned efficiency features of the tower under construction at La Jolla Commons in UTC are expected to make it the nation’s largest “net zero” energy commercial office building, according to Houston-based developer Hines.

Hines officials said in a statement that the 13-story building, known as La Jolla Commons II at 4707 Executive Drive, has been designed to achieve “carbon neutrality” on an annual basis, with elements including directed biogas and on-site fuel cells. Biogas is a type of biofuel created from biogenic material, plant material and waste.

Design and other components are expected to generate more electricity than the building tenant will use.

The 415,000-square-foot tower will be fully leased and occupied by LPL Financial LLC, which is consolidating operations from several sites in the San Diego region. Construction began in April, with completion scheduled for mid-2014.

The tower is being developed and will be owned by a partnership of Hines and institutional investors advised by J.P. Morgan Asset Management.

— SDBJ Staff Report