Improving the energy efficiency of buildings is generally considered to be one of the most practical ways that a property owner can cut the cost of lighting, heating and cooling.

Now, the U.S. Army is demonstrating in spades the pragmatism of such moves as it surpasses the $1 billion mark in responding to a 2014 challenge by President Obama to all federal agencies to achieve $4 billion in energy savings performance contracts by December. (Read more)