|Millions of euro|
|Maintenance and repairs||1,127||1,145||(18)||-1.6%|
|Telephone and postal costs||172||181||(9)||-5.0%|
|Leases and rentals||396||382||14||3.7%|
|Purchase of environmental certificates||673||481||192||39.9%|
|Fair value gain on contracts for purchase of environmental certificates (IFRS 9) (1)||71||256||(185)||-72.3%|
(1) The 2019 figures have been adjusted to take account of the reclassification of the fair value gain on contracts for the purchase of commodities with physical settlement (IFRS 9) from “Other operating costs”.
Costs for services and other materials, equal to €18,298 million in 2020, decreased by €538 million compared with 2019, mainly due to:
- a decline in wheeling costs, mainly in Spain, Chile and Brazil, connected with the contraction in volumes transported;
- a reduction in costs for “other services” of €287 million, essentially due to the decrease in costs for services connected with the electricity and gas business (€93 million), the value-added services business (€40 million) and travel expenses (€85 million).
All of the effects mentioned above were substantially affected by the measures introduced to counter the COVID-19 pandemic.