Key figures (usd thousands) 2015* 2016
Output (GWh) 17.736 17.485
Transmission losses (GWh) 370 360
Transmission losses as a ratio of input 2,0% 2,0%
Operating revenue 122.735 129.743
Investing activities 35.732 42.007
Investing activities as a ratio of operating revenue 29,1% 32,4%
Earnings before interests and taxes (EBIT) 56.815 49.717
EBIT as a ratio of operating revenue 46,3% 38,3%
General operating cost ** 27.310 30.011
General operating cost as a ratio of operating revenue 22,3% 23,1%
Profit 30.412 -12.967
Profit as a ratio of operating revenue 24,8% -10,0%
Assets 794.610 770.817
Equity 323.756 308.411
Liabilities 470.854 462.406
Return on equity * 13,1% -4,1%
Equity ratio 40,7% 40,0%
Length of overhead transmission lines (km) 3.037 3.283
Length of underground and sub-sea cables (km) 207 251
Full - time equivalent positions at year end 113 119

Calculation of key figures:

Return on equity = Profit/Equity at the beginning of year

Equity ratio = Equity/Assets

*Samanburðarfjárhæðum ársreiknings hefur verið umbreytt í Bandaríkjadali samkvæmt gengi Seðlabanka Íslands. Fjárhæðir rekstrar umbreytast á meðaltali miðgengis tímabilsins, fjárhæðir efnahags á miðgengi tilgreindrar dagsetningar, sjóðstreymi eftir atvikum á meðaltali miðgengis tímabilsins eða á dagsetningu þess dags sem viðskiptin áttu   sér stað. Kennitölur eru ekki endurreiknaðar og birst því óbreyttar frá fyrri uppgjörum.

** General operating cost = 
Operating expenses - Depreciation - Ancillary services and losses