Electric carmaker Tesla (TSLA - Get Report) is prepping to boost electric-vehicle production at its Fremont, California facility, according to an internal memo, after achieving record deliveries in the second quarter.

In an internal memo to Tesla staff viewed by Bloomberg News, Tesla automotive president, Jerome Guillen, said the company is "making preparations" to raise output at the Fremont plant.

"While we can't be too specific in this email, I know you will be delighted with the upcoming developments," Guillen said in the memo sent to Tesla employees on Tuesday.

Model 3 is not just Premium Electric Car of the Year but also THE

��2019 Car of the Year �� https://t.co/rFuOO6sC9X

— Tesla (@Tesla) July 9, 2019

Tesla's second-quarter deliveries beat Wall Street estimates, easing concerns over demand for the company's electric cars. Tesla produces all of its vehicles at its assembly plant in Fremont, but produces battery packs and drive units at its gigafactory near Reno, Nevada.

Shares of Tesla were up 0.52%, at $231.25 in premarket trading on Wednesday.