|NRG ENERGY, INC. filed this Form 10-K on 03/01/2018|
The following table summarizes proceeds from sales of available-for-sale securities and the related realized gains and losses from these sales. The cost of securities sold is determined using the specific identification method.
Note 7 — Inventory
Inventory consisted of:
During the year ended December 31, 2017, the Company recorded a lower of weighted average cost or market adjustment related to fuel oil of $33 million.
Note 8 — Notes Receivable
Notes receivable consist of fixed and variable rate notes related primarily to amounts owed to the Company from transmission owners for certain projects for the financing of network upgrades. The Company's notes receivable were as follows:
Note 9 — Property, Plant and Equipment
The Company's major classes of property, plant, and equipment were as follows:
The Company recorded long-lived asset impairments during the years ended December 31, 2017 and 2016, as further described in Note 10, Asset Impairments.