By Rebecca Elliott

Tesla Inc. posted its first full-year profit and laid out plans for a sharp increase in production over the coming years after meeting rising demand for electric vehicles with record deliveries.

The Silicon Valley car maker expects to increase deliveries by about 50% annually and, Chief Executive Elon Musk Wednesday said, will likely top that rate this year and next. The company delivered around half a million vehicles to customers last year.

Mr. Musk last year suggested a delivery target of about 840,000 to one million vehicles in 2021. Wall Street's projection is for about 796,000 vehicles.

For 2020, Tesla reported a profit of $721 million on about $31.5 billion in sales, supported by the increase in deliveries and higher revenue from regulatory credits. That compares with an $862 million loss and sales of $24.6 billion in 2019. The company topped Wall Street's revenue expectation of about $31.1 billion, according to FactSet, though it missed profit estimates.

Tesla's financial results have been buoyed by the sale of regulatory credits to rival auto makers that need them to comply with emissions-related rules. Such credits brought in roughly $1.6 billion last year, up from $594 million in 2019.

But Tesla said its bottom line in the latest quarter was weighed down by a range of factors, including supply-chain costs and preparations for updated versions of its Model S luxury sedan and Model X sport-utility vehicle.

Costs linked to Mr. Musk's stock-based compensation package also dented earnings. Mr. Musk, who doesn't accept a salary from Tesla, became eligible for multiple tranches of stock options last year.

Shares in the car maker slumped some 5% in after-hours trading.

Tesla delivered quarterly profits during the pandemic despite the temporary shutdown of its U.S. car plant because of the health crisis. To manage the impact, Mr. Musk battled with local authorities to reopen the factory, temporarily reduced salaries, furloughed workers and sought rent breaks. Later in the year, he tested positive for Covid-19. Mr. Musk, on a call, said that while the workload was immense, he expected to keep running the car maker "for several years."

The 17-year-old company's performance, coupled with wider investor enthusiasm about electric vehicles, sent the stock soaring more than 700% last year and turned Tesla into the world's most-valuable auto maker. The string of quarterly profits also allowed it to secure a spot in the S&P 500 index.

Tesla is one of several American tech giants on a path to emerge from the pandemic stronger than before. Apple Inc. on Wednesday said profit in the most recent quarter rose 29%, with three-month sales topping $111 billion for the first time, aided by demand for laptops and iPad tablets in the work-from-home era. Microsoft Corp. on Tuesday also reported record sales and issued an upbeat outlook for the rest of its financial year. Social-media giant Facebook Inc. Wednesday posted record quarterly revenue and profit.

The car maker generated a profit of $270 million in the fourth quarter, up from $105 million a year earlier. Sales rose about 46% to roughly $10.7 billion.

Tesla has benefited from growing electric-vehicle demand in China, where it began delivering locally made vehicles in 2019. The company has expanded production capacity at its Shanghai facility and this month delivered its first made-in-China Model Y sport-utility vehicles.

But Tesla also faces increased competition from incumbent auto makers such as General Motors Co. and Ford Motor Co. and a fleet of startups that are developing their own plug-in models, including in China.

To support its growth, the company aims to open two new vehicle factories this year, one near Austin, Texas, and the other near Berlin, its first in Europe. The company reiterated those plans Wednesday and said that it would deliver its first semitrailer truck later this year. Mr. Musk reiterated that the company hoped to begin delivering its electric pickup truck to customers toward the end of 2021.

To help sustain consumer appetite, the company said it is preparing new batteries and other enhancements for the Model S -- which it began delivering almost a decade ago -- and for the more than five-year-old Model X. A souped-up version of the new Model S, now in production, would be the first regular car to be able to go from zero to 60 miles an hour in under two seconds, Mr. Musk said. The updated Model S, he said would be delivered next month and the revised Model X soon after. Deliveries of those higher-end models fell 3% in the fourth quarter from the year-earlier period. Tesla said it has capacity at its plant in Fremont, Calif., to make 100,000 of those models, or 11% more than previously.

Tesla said it now has the capacity to produce more than one million cars a year. It said its Shanghai plant could make 450,000 combined Model 3 and Model Y vehicles, or 200,000 more than it reported in the prior quarter.

Tesla's ascendancy from plucky startup to the world's most-valuable auto maker has been rocky at times. The company has often struggled to introduce new vehicles, such as the Model 3 compact car, and grappled with production challenges that have strained its finances.

Tesla also hasn't delivered on some of Mr. Musk's more grandiose promises, such as launching a robot taxi service by the end of 2020.

Federal regulators this month asked Tesla to recall roughly 158,000 vehicles over touch-screen failures that can affect safety functions, including backup cameras. Tesla hasn't responded to a request for comment about whether it intends to follow through with the recall, which would be one of its largest safety actions to date.

Tesla has shored up its cash position recently by selling billions in new stock. The company's cash holdings totaled around $19.4 billion as of year-end, up from around $6.3 billion at the end of 2019. Chief Financial Officer Zach Kirkhorn said Tesla was using the funds to reduce debt and invest in adding production capacity, among other areas.

Write to Rebecca Elliott at rebecca.elliott@wsj.com

(END) Dow Jones Newswires

01-27-21 2035ET