%0 Journal Article %K power system planning %K dispersed storage and generation %K power system economics %K cogeneration %K building management systems %K cooling %K cost optimal control %K buildings %K optimization methods %K distributed control %A Chris Marnay %A Giri Venkataramanan %A Michael Stadler %A Afzal S Siddiqui %A Ryan M Firestone %A Bala Chandran %B IEEE Transactions on Power Systems %D 2008 %G eng %N 3 %P 975-982 %R 10.1109/TPWRS.2008.922654 %T Optimal Technology Selection and Operation of Commercial-Building Microgrids %V 23 %8 08/2008 %X

The deployment of small ( < 1-2 MW ) clusters of generators, heat and electrical storage, efficiency investments, and combined heat and power (CHP) applications (particularly involving heat-activated cooling) in commercial buildings promises significant benefits but poses many technical and financial challenges, both in system choice and its operation; if successful, such systems may be precursors to widespread microgrid deployment. The presented optimization approach to choosing such systems and their operating schedules uses Berkeley Lab's Distributed Energy Resources Customer Adoption Model (DER-CAM), extended to incorporate electrical and thermal storage options. DER-CAM chooses annual energy bill minimizing systems in a fully technology-neutral manner. An illustrative example for a hypothetical San Francisco hotel is reported. The chosen system includes one large reciprocating engine and an absorption chiller providing an estimated 11% cost savings and 8% carbon emission reductions under idealized circumstances.