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ENERGY STORAGE SYSTEMS, NET

3 Months Ended

Mar. 31, 2021

ENERGY STORAGE SYSTEMS, NET

ENERGY STORAGE SYSTEMS, NET

5.   ENERGY STORAGE SYSTEMS, NET

Energy Storage Systems, Net

Energy storage systems, net, consists of the following (in thousands):

​

​	​	​	​	​
​		March 31, 2021
Energy storage systems placed into service	​	$	145,555	​
Less: accumulated depreciation	​	​	(36,758)	​
Energy storage systems not yet placed into service	​	​	11,045	​
Total energy storage systems, net	​	$	119,842	​

​

Depreciation expense for energy storage systems was approximately $3.8 million and $3.6 million within cost of service revenue for the three months ended March 31, 2021 and 2020, respectively.

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- Definition

The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 958
-SubTopic 360
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-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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