Well, I think it really depends on the economics of grid storage and proximity.<p>For instance, there was someone saying they pay $.10&#x2F;kwh year round on a thread the other day and it was due to their proximity to grid storage.<p>$.10 to .15&#x2F;kwh is realistically the range battery technology will be in for the next 10-15 years, barring a major technological change. That simply is not going to be cost effective in many areas.<p>EDIT:<p>Since I can&#x27;t post...<p><a href="http:&#x2F;&#x2F;www.computerworld.com&#x2F;article&#x2F;2977655&#x2F;sustainable-it&#x2F;as-energy-push-accelerates-battery-costs-set-to-plunge-60.html" rel="nofollow">http:&#x2F;&#x2F;www.computerworld.com&#x2F;article&#x2F;2977655&#x2F;sustainable-it&#x2F;...</a><p>&gt; As energy push accelerates, battery costs set to plunge 60%<p>&gt; Lithium-ion (Li-on) batteries will drop from $550 per kilowatt hour (kWh) in 2014 to $200 per kWh by 2020; and flow battery prices will drop from $680 per kWh to $350 per kWh during the same time.<p>A daily cycle, 5 year battery is still going to be ~$.11&#x2F;kwh in 2020.<p>You need generation + battery storage [combined] to get into the below $.15&#x2F;kwh for it to make sense outside of peak June-Sept, 2-7pm times.