Investors who bought the automaker’s shares in its initial public offering became rich. As a result, many have a deep faith in Elon Musk, the chief executive of Tesla and SpaceX.

The carmaker will follow Tesla in making components for large batteries used by electric utilities, data centers and other businesses to handle fluctuations in power supply and demand.

The carmaker will follow Tesla in making components for large batteries used by electric utilities, data centers and other businesses to handle fluctuations in power supply and demand.

© Rebecca Cook/Reuters

The billionaire has stated many plans for his businesses, but has delivered only some of what he said he would, when he said he would, according to a Times analysis.

California truckers have expressed strong interest in the Tesla Semi because it costs much less and can travel further on a charge than electric trucks sold by established manufacturers.

A House transportation bill introduced this week would require owners of electric cars to pay $130 to cover the cost of road repairs.

© Maddie McGarvey for The New York Times