%0 Journal Article %K Ancillary services %K Optimization %K Mixed integer linear programming (MILP) %K Distributed Energy Resources (DER) %K Microgrid %K Decision support tool %A Gonçalo Cardoso %A Michael Stadler %A Salman Mashayekh %A Elias Hartvigsson %B Energy %D 2017 %G eng %P 99-112 %R 10.1016/j.energy.2017.04.124 %T The impact of Ancillary Services in optimal DER investment decisions %V 130 %2 LBNL-2001059 %8 07/2017