For cars, price and density are very important, and Tesla will certainly improve in those specs too. But for energy storage, longer durability directly translat

For cars, price and density are very important, and Tesla will certainly improve in those specs too. But for energy storage, longer durability directly translates into an effectively lower price. As power companies often invest in the scales of several decades - a power plant often can be run for 5 decades - the costs are calculated over those time spans.