TESLA'S GIGAFACTORY

Tesla officially opened it's Gigafactory on last Tuesday,a little more than two years after construction began.The factory is about 14 percent complete,but when it's finished it will be about 10 million square feet or about the size of 262 NFL football fields.That will make it one of the largest building in the world.It's a massive,$5 billion(roughly Rs,33,630 crores) factory in the Nevada desert that could nearly double the world's production of lithium ion batteries.

The company says making it's own lithium-ion batteries at the scale the Gigafactory will allow will reduce i's battery cost by more than a third by 2018.Most immediate Tesla needs the batteries foe it's fourth car,the model 3 Sedan,which is scheduled to go on sale at the end of next year.The model 3 will be Tesla's least expensive vehicle,partly because of battery cost reduction.To meet the goal,Gigafactory construction is proceeding at a furious pace.Robots are used to place battery packs into home and office units which store energy,from solar panel's and allow users to tap it during peak periods.The factory's name stems from "giga",a unit of measurement that represent billions.One gigawatt hour is the equivalent of generating one billion watts for one hour-one million times that of one kilowatt hour.Tesla says the factory will be producing 35 gigawatt hours of batteries by 2018.That's the equivalent to the entire world's production in 2014.Tesla CEO Elon Musk has said the factory has the capacity to produce,50 gigawatt hours if it needs to.To put that in context,New York city uses around 52 gigawatt hours of energy per year.

Musk says there are still plenty of ways for Tesla,to reduce costs including making it's factories more efficient and eventually building more battery factories in Europe,China and other regions.Where it's cars are sold.