Problem is that battery technology follows a far slower doubling path historically than solar has (doubling as in Moore’s law)
Battery tech is also more complicated, as you are optimizing/trading off piles of different factors, and often different applications necessitate different tradeoffs (e.g. one-size-fits-all won’t be the case unless we have far better battery tech)
cost
charge/discharge efficiency
self-discharge
energy density (by mass) wh/kg
energy density (by volume) wh/L
charge/discharge speed (specific power, w/kg)
cycle life / lifespan (includes tolerance to deep discharge)
Problem is that battery technology follows a far slower doubling path historically than solar has (doubling as in Moore’s law)
Battery tech is also more complicated, as you are optimizing/trading off piles of different factors, and often different applications necessitate different tradeoffs (e.g. one-size-fits-all won’t be the case unless we have far better battery tech)