Question: What is the 2010 population of the city in which Solar Energy Research Institute was located? 

<P0-S0> The Institute of Energy Conversion (IEC), located at the University of Delaware is the oldest solar energy research institute in the world. <P0-S1>  It was established by Karl Boer in 1972 to pioneer research on thin film solar cells. <P0-S2>  The IEC performs independent research and collaborates with businesses alongside training undergraduate and graduate students in solar cell engineering. <P0-S3>  In 2011, the organization was the highest recipient of the United States Department of Energy's (DOE) SunShot Initiative and was awarded five grants totaling $9.1 million to research next generation solar cells to reduce the cost of solar cells by 75 percent by the end of the decade. <SEP> <P1-S0> The Fraunhofer Institute for Solar Energy Systems ISE (or Fraunhofer ISE) is an institute of the Fraunhofer-Gesellschaft. <P1-S1>  Located in Freiburg, Germany, The Institute performs applied scientific and engineering research and development for all areas of solar energy. <P1-S2>  Fraunhofer ISE has three external branches in Germany which carry out work on solar cell and semiconductor material development: the Laboratory and Service Center (LSC) in Gelsenkirchen, the Technology Center of Semiconductor Materials (THM) in Freiberg, and the Fraunhofer Center for Silicon Photovoltaics (CSP) in Halle. <P1-S3>  Since 2006, Prof. Dr. Eicke R. Weber is the director of Fraunhofer ISE. <P1-S4>  With over 1,100 employees, Fraunhofer ISE is the largest institute for applied solar energy research in Europe. <P1-S5>  The 2012 Operational Budget including investments is 74.3 million euro. <SEP> <P2-S0> The SERI microalgae culture collection was a collection from the Department of Energy's Aquatic Species Program cataloged at the Solar Energy Research Institute located in Golden, Colorado. <P2-S1>  The Aquatic Species Program ended in 1996 after its funding was cut, at which point its microalgae collection was moved to the University of Hawaii. <P2-S2>  In 1998 the University of Hawaii, partnered with the University of California at Berkeley, received a grant from the National Science Foundation (NSF), for their proposal to develop commercial, medical, and industrial uses of microalgae, as well as new and more efficient techniques for cultivation. <P2-S3>  This grant was used to form Marine Bioproduct Engineering Center (MarBEC), a facility operating within the University system of Hawaii at Manoa, but connected to corporate interests. <SEP> <P3-S0> Golden is the Home Rule Municipality that is the county seat of Jefferson County, Colorado, United States. <P3-S1>  Golden lies along Clear Creek at the base of the Front Range of the Rocky Mountains. <P3-S2>  Founded during the Pike's Peak Gold Rush on 16 June 1859, the mining camp was originally named Golden City in honor of Thomas L. Golden. <P3-S3>  Golden City served as the capital of the provisional Territory of Jefferson from 1860 to 1861, and capital of the official Territory of Colorado from 1862 to 1867. <P3-S4>  In 1867, the territorial capital was moved about 12 mi east to Denver City. <P3-S5>  The United States Census Bureau estimates that the city population was 18,867 in 2010.