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SEC Filing Details

10-K
NRG ENERGY, INC. filed this Form 10-K on 03/01/2018
Entire Document
 

Gross Margin
The Company calculates gross margin in order to evaluate operating performance as operating revenues less cost of sales, which includes cost of fuel, other costs of sales, contract and emission credit amortization and mark-to-market for economic hedging activities.
Economic Gross Margin
In addition to gross margin, the Company evaluates its operating performance using the measure of economic gross margin, which is not a GAAP measure and may not be comparable to other companies’ presentations or deemed more useful than the GAAP information provided elsewhere in this report. Economic gross margin should be viewed as a supplement to and not a substitute for the Company's presentation of gross margin, which is the most directly comparable GAAP measure. Economic gross margin is not intended to represent gross margin. The Company believes that economic gross margin is useful to investors as it is a key operational measure reviewed by the Company's chief operating decision maker. Economic gross margin is defined as the sum of energy revenue, capacity revenue and other revenue, less cost of fuels and other cost of sales.
Economic gross margin does not include mark-to-market gains or losses on economic hedging activities, contract amortization, emission credit amortization, or other operating costs.
The tables below present the composition and reconciliation of gross margin and economic gross margin which reflects the Company's current view of reporting segments for the years ended December 31, 2016 and 2015:
 
Year Ended December 31, 2016
 
Generation
 
 
 
 
 
 
 
 
 
 
(In millions except otherwise noted)
Gulf Coast
 
East/West
 
Subtotal
 
Retail
 
Renewables
 
NRG Yield
 
Corporate/Eliminations
 
Total
Energy revenue
$
2,073

 
$
1,098

 
$
3,171

 
$

 
$
369

 
$
582

 
$
(991
)
 
$
3,131

Capacity revenue
293

 
598

 
891

 

 

 
345

 
(11
)
 
1,225

Retail revenue

 

 

 
6,336

 

 

 
21

 
6,357

Mark-to-market for economic hedging activities
(518
)
 
(48
)
 
(566
)
 

 
(6
)
 

 
(70
)
 
(642
)
Contract amortization
15

 

 
15

 
(1
)
 
(1
)
 
(69
)
 

 
(56
)
Other revenue (a)
237

 
85

 
322

 

 
44

 
177

 
(46
)
 
497

Operating revenue
2,100

 
1,733

 
3,833

 
6,335

 
406

 
1,035

 
(1,097
)
 
10,512

Cost of fuel
(938
)
 
(469
)
 
(1,407
)
 
(8
)
 
(3
)
 
(33
)
 
130

 
(1,321
)
Other costs of sales(b) 
(387
)
 
(299
)
 
(686
)
 
(4,679
)
 
(11
)
 
(28
)
 
898

 
(4,506
)
Mark-to-market for economic hedging activities
71

 
2

 
73

 
365

 

 

 
70

 
508

Contract and emission credit amortization
(29
)
 
(5
)
 
(34
)
 
(6
)
 

 
(6
)
 
3

 
(43
)
Gross margin
$
817

 
$
962

 
$
1,779

 
$
2,007

 
$
392

 
$
968

 
$
4

 
$
5,150

Less: Mark-to-market for economic hedging activities, net
(447
)
 
(46
)
 
(493
)
 
365

 
(6
)
 

 

 
(134
)
Less: Contract and emission credit amortization, net
(14
)
 
(5
)
 
(19
)
 
(7
)
 
(1
)
 
(75
)
 
3

 
(99
)
Economic gross margin
$
1,278

 
$
1,013

 
$
2,291

 
$
1,649

 
$
399

 
$
1,043

 
$
1

 
$
5,383

Business Metrics
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
MWh sold (thousands)(c)(d)
52,929

 
25,995

 
 
 


 
3,827

 
7,363

 
 
 
 
MWh generated (thousands)(e)
47,828

 
17,114

 
 
 


 
3,827

 
9,264

 
 
 
 
(a) Renewables Other revenue includes $19 million of intercompany revenue to NRG Yield.
(b) Includes purchased energy, capacity and emissions credits.
(c) MWh sold excludes generation at facilities in the West and NRG Yield that generate revenue under tolling agreements.
(d) Does not include MWh of 71 thousand or MWt of 1,966 thousand for thermal sold by NRG Yield.
(e) Does not include MWh of 275 thousand or MWt of 1,966 thousand for thermal generated by NRG Yield.




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