Net income in 2012 was $1.47bn. Revenue last year increased to $12.74bn versus $11.74bn in 2012.

Results include NV Energy, Nevada’s largest electric utility, after MEHC’s acquisition last 13 December for $5.6bn

Berkshire released its 2013 annual report on Saturday. The parent company earned a record $19.5bn versus $14.8bn a year earlier in response to an improving US economy.

Owned 89.8% by Berkshire, MEHC’s main units are utilities in the US Midwest and Pacific Northwest, an electricity distributor in the UK, plus natural gas pipeline companies and the second largest independent residential real estate brokerage firm in America.

The