XML 40 R29.htm IDEA: XBRL DOCUMENT v3.21.2
ENERGY STORAGE SYSTEMS, NET (Tables)
9 Months Ended
Sep. 30, 2021
Property, Plant and Equipment [Abstract]  
Schedule of Energy Storage Systems, Net Energy storage systems, net, consists of the following (in thousands):
September 30, 2021
Energy storage systems placed into service$143,423 
Less: accumulated depreciation(42,465)
Energy storage systems not yet placed into service13,191 
Total energy storage systems, net$114,149