Berkshire Hathaway’s utility company is about to hit a major renewable energy milestone
Siemens wind turbines operate on a wind farm in Marshalltown, Iowa, where many of Berkshire's first big renewable investments were made over the past decade as the former MidAmerican Energy under now-Berkshire Energy was well situated in one of the nation's top wind corridors.

With annual meeting season coming soon, Warren Buffett's climate record is back in the news – and activists are still not happy.

Buffett's Berkshire Hathaway conglomerate faces three different shareholder resolutions heading into its annual "Woodstock for capitalism" on May 6. While no one expects any of the resolutions to pass – Buffett's opposition and 32% voting stake will likely prevent that – they are attracting support from high-profile investors like California's $445 billion pension giant CalPERS and have in recent years seen an increasing base of Berkshire shareholders push up vote totals against Buffett's clearly stated wishes.

The resolutions demand better disclosure of climate risks Berkshire faces from its mix of utilities, reinsurance companies, shipping coal on its Burlington Northern railroad, and investments in oil stocks, which he has been increasing recently, specifically through a big stake in Occidental .

Buffett's climate metrics getting better

Berkshire is a climate paradox: Many of its climate metrics are improving rapidly, if not as fast as some competitors. The biggest: Its utilities' renewable power projects completed or under construction are on track to double the recent national average of electricity generation from renewable sources, and its revenue from coal shipping has moved steadily lower over the past decade. But Berkshire both dishes out and absorbs climate risk – in emissions from power plants and, through its investments in Chevron and Occidental, gasoline-powered cars; and in its insurance exposure to flooding and wildfires that are expected to worsen as global temperatures rise.

"It's fair to say that for their size, the breadth and complexity of their business, that their approach to climate change continues to lag behind peers," CFRA Research analyst Cathy Seifert said. "They could be front and center, but I don't think they will be."

Any discussion of Berkshire and climate necessarily begin with its utility business, since electricity production accounts for a quarter of U.S. greenhouse gas emissions. Berkshire Hathaway Energy, whose CEO Greg Abel is the heir apparent to the 92-year old Buffett himself as the parent company's chief executive, would be the fifth-biggest U.S. utility holding company if it were independent.

Berkshire Energy spokesman Brandon Zero said the company would have no comment.

BHE is moving rapidly to shift its power mix to wind and solar. Counting plants under construction, Berkshire will soon get 45% of its power from wind, solar, geothermal energy and hydropower, according to Berkshire Hathaway Energy's annual report, which will comfortably exceed the 21.5% the government reports that all utilities actually generated in 2022. The 31% of electricity capacity Berkshire will be getting from natural gas when its coming plants are done is less than the 40% national share. But it still uses more coal, the dirtiest major electricity fuel – coal represents 23% of Berkshire's power mix – more than the national average of 20%.