TY - RPRT TI - Developing Cost Functions for Estimating Solar Photovoltaic System Installed and Life Cycle Costs Using Historical Quote Data AU - Webb, David AU - Kneifel, Joshua AU - O’Fallon, Cheyney PY - 2020 PB - National Institute of Standards and Technology SN - NIST TN 2113 DO - 10.6028/NIST.TN.2113 ER -