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PROJECT ASSETS
12 Months Ended
Dec. 31, 2022
PROJECT ASSETS  
PROJECT ASSETS

5. PROJECT ASSETS

Project assets consist of the following:

At December 31, 

At December 31, 

    

2021

    

2022

$

$

Project assets — Development cost, including project acquisition and land cost

558,244

444,858

Project assets — EPC and other construction cost

469,117

379,635

1,027,361

824,493

Current portion

594,107

385,964

Non-current portion

433,254

438,529

The Company recorded impairment loss on project assets of $369, $17,152 and $1,674 for the years ended December 31, 2020, 2021 and 2022, respectively. Interest capitalized during development and construction of project assets was $10,197, $17,316 and $26,439 for the years ended December 31, 2020, 2021 and 2022, respectively.