IBM today announced that it is acquiring Tririga, the Las Vegas, Nevada-based maker of facilities management software for an undisclosed amount.

The move is the latest in Big Blue’s Smarter Buildings initiative, which pursues IT opportunities in a burgeoning market for solutions that improve cost- and energy-efficiency of real estate assets like corporate offices and manufacturing plants. It’s a market that Cisco estimates could grow to roughly $100 billion through 2020.

With the Tririga buy, IBM is expanding into managing real estate portfolios and capital projects assessments. Perhaps the most exciting aspect of the deal is IBM’s push toward improving energy efficiency and driving sustainability in big, power-hungry offices. In January, the tech giant teamed with the City of New York and area schools to establish the NYC Urban Technology Innovation Center and bring cloud computing to bear on advancing green building tech in densely populated areas.

With Tririga’s software, IBM envisions that companies will be able to “monitor and track its carbon footprint and reduce greenhouse gases from underperforming  facilities,” according to a company release. With that info in hand, it’s presumed that execs are empowered to make informed, money-saving decisions that happen to look good on a CSR reports too. Tririga’s president and CEO, George Ahn, echoes the sentiment in a press release. “By combining our intellectual capital with the global reach of IBM, we can help clients dramatically improve their buildings’ operations to become more sustainable and cost efficient,” he states.

When the acquisition is complete, Tririga’s software and services offerings will be folded into IBM’s Tivoli management software and Global Business Services divisions.