v3.20.4

Employee benefit expenses and other operating income and expenses | 12 Months Ended
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Dec. 31, 2020
Employee benefit expenses other operating income and expenses [Abstract] |
Employee benefit expenses and other operating income and expenses | Note 20.- Employee benefit expenses and other operating income and expenses Employee benefit expenses The table below shows employee benefit expenses and number of employees for the years ended December 31, 2020, 2019 and 2018:
|  | For the year ended December 31, |
|  | 2020 |  |  | 2019 |  |  | 2018 |
Employee benefit expenses |  |  | 54,464 |  |  |  | 32,246 |  |  |  | 15,130 |
Average monthly number of employees |  |  | 441 |  |  |  | 306 |  |  |  | 207 |
The increase in employee benefit expenses in 2020 and 2019 is primarily due to the internalization of operation and maintenance services in the U.S. solar assets of the Company, following the acquisition of ASI Operations in July 2019. Other operating income and expenses The table below shows the detail of Other operating income and expenses for the years ended December 31, 2020, 2019 and 2018:
|  | For the year ended December 31, |
Other operating income |  | 2020 |  |  | 2019 |  |  | 2018 |
Grants |  |  | 59,010 |  |  |  | 59,142 |  |  |  | 59,421 |
Income from various services and insurance proceeds |  |  | 40,515 |  |  |  | 34,632 |  |  |  | 34,181 |
Income from the purchase of the long-term operation and maintenance payable to Abengoa |  |  | - |  |  |  | - |  |  |  | 38,955 |
Total |  |  | 99,525 |  |  |  | 93,774 |  |  |  | 132,557 |
|  | For the year ended December 31, |
Other operating expenses |  | 2020 |  |  | 2019 |  |  | 2018 |
Raw materials and consumables used |  |  | (7,792 | ) |  |  | (9,719 | ) |  |  | (10,648 | )
Leases and fees |  |  | (2,531 | ) |  |  | (1,850 | ) |  |  | (1,716 | )
Operation and maintenance |  |  | (110,873 | ) |  |  | (116,018 | ) |  |  | (145,857 | )
Independent professional services |  |  | (40,193 | ) |  |  | (41,579 | ) |  |  | (43,229 | )
Supplies |  |  | (27,926 | ) |  |  | (25,823 | ) |  |  | (25,947 | )
Insurance |  |  | (37,638 | ) |  |  | (23,971 | ) |  |  | (24,227 | )
Levies and duties |  |  | (39,820 | ) |  |  | (34,844 | ) |  |  | (37,439 | )
Other expenses |  |  | (9,891 | ) |  |  | (7,971 | ) |  |  | (21,579 | )
Total |  |  | (276,666 | ) |  |  | (261,776 | ) |  |  | (310,642 | )
Grants income mainly relate to ITC cash grants and implicit grants recorded for accounting purposes in relation to the FFB loans with interest rates below market rates in Solana and Mojave projects (Note 16). Other operating income in 2018 includes a $39.0 million one-time gain in relation to the purchase from Abengoa of the long-term operation and maintenance payable accrued for the period up to December 31, 2017.

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