PHILADELPHIA-Ecosave Inc., an Australian energy efficiency firm, will occupy 20,000-square feet at a building to go up at the Philadelphia Navy Yard.

The lease deal culminated a two-year effort by the city to bring the firm to the Navy Yard.

“We are delighted to welcome Ecosave to Philadelphia,” said Philadelphia Mayor Michael Nutter. “Increasingly, companies from around the world are choosing to start, stay and grow in Philadelphia as we offer a very competitive business climate, unrivaled quality of life, and world class leadership in sectors such as energy efficiency.”

Ecosave is Australia's largest independent energy services company offering free energy and water savings assessments, guaranteed savings, fixed-fee proposals, and funding solutions. Ecosave has delivered savings to more than 3,000 sites in Australia and internationally since 2002. I

In 2013, Ecosave purchased a Bristol, PA-based energy efficiency firm.

“Ecosave carried out a two-year search, considering six potential cities in the northeastern U.S., to select the best city in which to base our North American head office,” said Ecosave CEO Marcelo Rouco. “The two key factors in our decision were the chance to be among thought leaders in green buildings at the Energy Efficiency Buildings Hub in the Navy Yard, and the welcoming we received from the local commercial community."

Ecosave will occupy approximately 20,000 square feet of a new, 75,000-square-foot building to be constructed in the Commerce Center of the Navy Yard, developed by Liberty Property Trust and Synterra Partners.