&gt;Solar and wind power sources will never replace base-load coal&#x2F;gas plants until we can solve that problem. Battery technology doesn&#x27;t solve this problem yet.<p>It&#x27;s already being done in Hawaii:<p><a href="http:&#x2F;&#x2F;www.utilitydive.com&#x2F;news&#x2F;hawaii-co-op-solarcity-ink-deal-for-dispatchable-power-from-solar-storage&#x2F;405408&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.utilitydive.com&#x2F;news&#x2F;hawaii-co-op-solarcity-ink-d...</a>