BYD’s B-Box Takes on Tesla’s Powerwall

(BRK.A), (BRK.B)

Tesla gained a lot of attention in May of 2015 when it announced its Powerwall home battery, a rechargeable 7-10 kwh lithium-ion battery that could be used by solar panel owners to store power when the sun doesn’t shine. For some, it pointed the way towards living completing off the grid. Tesla is not the only company eyeing the home electric power storage market.

BYD Co. Ltd. – the world’s largest supplier of rechargeable batteries – and GoodWe Power Supply Technology Co. Ltd. have announced the full compatibility of BYD’s B-Box Modular Energy Storage System with GoodWe’s ES and BP Series Inverters to provide households with efficiency in home energy storage.

Unlike Tesla, which uses lithium-ion batteries, BYD’s B-Box uses BYD’s fire-safe, completely recyclable and long-cycle Iron-Phosphate battery, which it notes features high thermal stability.

According to BYD, the B-Box features a wide range of output power to meet heavy load applications, high discharge currency, free and flexible utilization for off-grid and on-grid usage, as well as worldwide applicability.

As a modular energy storage system, the BYD B-Box features additional usage freedom and flexibility with the key advantage of easy expansion. In the B-BOX 10.0, each module has a 2.5KWh storage capacity, and the box can house up to four modules, for a maximum of 10KWh capacity. The B-Box10.0 can also be laid out in parallel, reaching a maximum capacity of 80KWh. BYD has also launched the B-BOX 12.8, which can reach a maximum capacity of 409kwh when paralleled with multiple boxes.

The BYD B-BOX is already on sale in many European countries including Germany, UK, Italy, Spain, as well as in Australia and Africa.

As BYD moves forward, Tesla has scaled its highly-touted home power storage plans, dropping it previously announced but never marketed 10 kwh Powerwall. Tesla instead will market only the 7 kwh Daily Powerwall.

BYD and Berkshire Hathaway

In 2008, Berkshire Hathaway bet on BYD’s potential, purchasing 225 million shares, and today owns roughly 9.1% of the company.

For More on BYD, read the Special Report: BYD, Berkshire’s Tesla.

© 2016 David Mazor

Disclosure: David Mazor is a freelance writer focusing on Berkshire Hathaway. The author is long in Berkshire Hathaway, and this article is not a recommendation on whether to buy or sell the stock. The information contained in this article should not be construed as personalized or individualized investment advice. Past performance is no guarantee of future results.