The land values 2.8 and 4.2 acres per MWdc are LBNL median reference densities for 2019 (Bolinger and Bolinger, 2022). They describe the area directly occupied by arrays, not the total leased or fenced site, and are medians of different plants, not a site estimate. The DC/AC ratio and the specific yields (1,250 fixed, 1,650 tracking) are invented starting values; replace them with your own. Type 2500 or 2,500; 2.5 and 2,5 are read as decimals.