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SOLAR POWER SYSTEMS, NET | 12 Months Ended
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Dec. 31, 2016
SOLAR POWER SYSTEMS, NET |
SOLAR POWER SYSTEMS, NET | 9. SOLAR POWER SYSTEMS , NET Solar power systems, net consist of the following:
|  | At December 31, 2015 |  | At December 31, 2016 |
|  | $ |  | $ |
Solar power systems in operation |  |  | 508,584 |  |  | 120,935 |
Solar power systems under construction |  |  | 706,118 |  |  | 4,782 |
Accumulated depreciation |  |  | (14,261 | ) |  | (13,655 | )
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Solar power systems, net |  |  | 1,200,441 |  |  | 112,062 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
For the years ended December 31, 2016, the Company completed construction of certain solar power projects and transferred from solar power systems to project assets totaling $1,362.1 million. In connection with decisions to sell certain operating solar power projects, the Company reclassified solar power systems of $405.9 million to assets held-for-sale, of which $115.3 million was sold, during the year ended December 31, 2016. Depreciation expense of solar power systems was $1,173, $11,340 and $16,492 for the years ended December 31, 2014, 2015 and 2016, respectively.

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- Definition The entire disclosure for solar power systems used in the normal conduct of business. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense. + References No definition available. + Details
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