Tesla could have never created the Model S — its second-generation electric car that won Motor Trend’s car of the year award for 2012 — with battery technology from a few decades ago, said Tesla’s CTO and co-founder J.B. Straubel at the Cleantech Investor Summit last week. He explained, “The type of vehicle we can create is fundamentally different every time that tech [batteries] moves a little forward.”

While battery innovation appears gradual, the incremental leaps add up over time. Battery innovation is improving around 5 to 8 percent per year, which can deliver a doubling in core performance metrics every ten years, which is ultimately really “revolutionary” said Straubel. 

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