Annual report pursuant to Section 13 and 15(d)


12 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories consist of the following (in thousands):
December 31,
2020 2019
Raw materials
$ 241,095  $ 239,449 
41,950  21,122 
$ 283,045  $ 260,571 
    The Internal Revenue Service (“IRS”) provided taxpayers a safe harbor opportunity to retain access to the pre-step down tax credit amounts through specific rules released in Notice 2018-59. The Company has sought to avail itself of the safe harbor by incurring certain costs and taking title in in the year the Company took delivery, for tax purposes, of the underlying inventory and/or by performing physical work on components that will be installed in solar facilities. There was approximately $73.0 million and $132.6 million for the years ended December 31, 2020 and 2019, respectively, related to the safe harbor program within raw materials.