In a letter to investors and analysts on Tuesday, the electric vehicle company said it would announce a "home battery" and a "very large utility-scale battery ".
"There are already similar products on the market, but Tesla says it will explain at the event why its battery is better than its competitor's solution.
According to Jeff Evans, Tesla's director of investor relations, CEO Elon Musk thinks the competitor's battery is "bad ". Tesla (TSLA)
Shares rose more than 5% on Wednesday.
When energy companies typically charge less for electricity, household batteries power up overnight.
They can then turn on the power to power the home during the day.
While home batteries cost thousands of dollars, many utility companies offer rebates.
Musk announced the incident on Twitter late last month, only to suggest that the new product is not a new electric vehicle.
The event will be held on April 30 at eight o'clock P. M. in the design studio of Tesla Hawthorne, California. m. PT.
Tesla has been talking about home battery storage products for about a year, and Musk announced in a conference call with analysts in February that Tesla will launch home batteries "soon.
"At a battery conference last year, Arch Padmanabhan, Tesla's fixed energy storage director, showed off some of the company's early plans, including 10 kilograms.
Watt-hour residential batteries for large buildings and 400 watt-hour commercial/utility batteries.
In a pilot project, Tesla has begun to provide home batteries to SolarCity (SCTY)
Customer, a solar company with Musk as chairman.
There are 330 in the United StatesS.
According to company analyst Trip Chowdhry, most of the households currently using Tesla batteries are in California.
Although California's Pacific Gas and Power Company says the batteries start at about $13,000. (PCG)
50% rebate for customers.
Tesla has three batteries. feet high by 2. 5-
The feet are wide and they need to be installed at least 1 feet and a half metres from the ground.
They can be controlled through Web apps and smartphone apps.
It is not clear whether Tesla's planned battery announced next week is the same as the pilot project or the demo at last year's battery conference.