Okay, I'm with you so far. Then why are you harping on about the battery storage for excess power and load balancing...? So... again, we are expected to take your word over the word of multiple people in the industry who have done this (successfully) on smaller scales and propose they can do it on this large scale... why? What secret knowledge do you have that they don't... Why? If the intent of the battery system is to provide power leveling and emergency power (as stated), and not replace the wind farm, then why would they need "5 hours times the wind power capacity" (and what does that mean? Do you mean they would need five hours worth of the wind farms output as storage?) Hm, thinly veiled ad-hom wrapped in an appeal to authority. I don't know you from Adam. your claim to be a "world-leading expert scientist" is great. Pleasure to meet you. I'm Kittamaru, the Queen of France, holder of the Sacred Chalice of Rixx, and heir to the Holy Rings of Betazed. I'm sure you can see my point... Agreed, and I reckon Musk and the intelligent folks in his company believe they can do this, and have put their money where their mouth is by saying either they will do it, or its free. So, again, I ask - why the vitriol and gnashing of teeth? What, did Musk steal your sweetroll? Seriously, you have given precisely zero reason to think Tesla doesn't know what they are doing in this venture.