Residential Battery Systems (RBS) are the topic of much excitement and speculation in the solar world recently.
Tesla, the electric car giant led by
entrepreneur and futurist Elon Musk recently rolled out their new
“Powerwall” system to much fanfare. Hot on their heels is Trina, the
Chinese solar giant, who announced one week later that they, too will be
rolling out a new RBS with a soft launch in Australia this summer.
Bosch, GE, LG, Sony and Samsung are all close to releasing similar
products.
Both the
Tesla and the
Trina
systems, although very different, are built on a backbone of Lithium
Ion batteries. Up until recently, Lead Acid batteries were the only
realistic option for RBS because of the high cost of Lithium Ion
technology. Now, it would appear that Lithium Ion is ready for prime
time in the RBS world. The question is, are Lithium Ion batteries a game
changer for solar, or just a stepping stone to the next energy storage
technology?
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