I just read that the Tesla Powerwall has a warranty to 5,000 cycles [1], which is 5x what I thought it would be. Without installation costs, that&#x27;s $0.095&#x2F;kWh == $3000 &#x2F; (7kWh * 5000 cycles * 0.9 efficiency).<p>Which means that consumer storage is <i>already</i> within your $0.11&#x2F;kWh price; that&#x27;s completely astounding to me, and means that on the grid scale it will be even cheaper.... I imagine that the days of peaker plants are coming to a close entirely.<p>This conversation has made me hugely optimistic. Huge swathes of the country are already primed to go completely off grid, economically, then. If solar costs $0.06&#x2F;kWh, and half of the energy is stored at $0.10&#x2F;kWh, that&#x27;s a total price of $0.11&#x2F;kWh for an off-grid site. That&#x27;s far cheaper than what I pay for electricity right now.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Tesla_Powerwall#cite_note-2015ecP4-9" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Tesla_Powerwall#cite_note-2015...</a>