Building owners are investing in energy-efficiency to cut operating costs, boost asset values, ensure reliability, and meet sustainability goals during tough economic times. These “deep energy retrofits” are being undertaken on existing buildings in an effort to delivering top-notch properties—properties that would have been available through new construction—to help tenants and building owners get the most from the upgrades.
http://www.distributedenergy.com/november-december-2010/efficiency-state-mind.aspx
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