Environmental Leader

Boston’s biggest property owner, Equity Office Properties Trust, is outfitting all its buildings in the city to seek LEED certification, Boston Globe reports.

Equity Office operates offices across the country but is installing the green technologies only in the 20 structures in and around Boston, beginning what could become a national effort, company executives told Boston Globe.

The initiative will bring Boston’s stock of green-certified office buildings to 34 from 23. Company executives estimate that Equity Office will save $1.5 million in electricity costs by 2012 on six buildings where upgrades are underway. The company also expects to spend about $4.7 million on a pilot program that includes upgrading four buildings.