https://bter.com/signup/168285 https://bter.com/ref/168285 Elon Musk his assets , electric car maker Tesla CEO $ 1.1 billion increase in just one day share prices thanks to a record . Since the beginning of 2014 , his fortune has increased by $ 3.8 billion . musk - 4925 - 1393487949.jpg Elon Musk at the event introducing the new model of Tesla . Photo: Reuters According to Bloomberg , the day 25/2 , billionaire Elon Musk ( CEO electric car maker Tesla ) was added to his fortune of $ 1.1 billion when its shares electric cars and solar company SolarCity closed at a record high . Investors show confidence in plans to build a manufacturing plant in the solar cell world 's largest Musk . According to the ranking of billionaire Bloomberg , Elon Musk owns assets worth $ 11.7 billion and has increased 10 % by day 25/2 . But from the beginning of the year , the billionaire fortune has increased by $ 3.8 billion . He is the CEO of Tesla , is also the largest shareholder of SolarCity . Elon Musk ( 42 years old ) and the world's 94th richest just behind Mark Zuckerberg , CEO of Facebook to increase asset value in the year. Market Tesla 30.4 billion, more than half the market capitalization of the two rivals General Motors and Ford in 2013 due to the electric car company has sold 22,400 Model S sedan line last week , Musk announced plans to build a giant factory supply lithium-ion batteries for Tesla with lower costs and greater quantities than any current basis . Tesla aims to increase production 56 % of mainstream Model S cars in 2014. Since March , this model began to be offered in China . On 25/2 , Consumer Reports magazine has released a report showing the Model S ( priced from $ 71,000 ) is worth buying the most cars in 2014. In the session on 25/2 , Tesla's stock price rose 14 % on the New York Mercantile Exchange , closing at 248 USD per share , up 65 % from a year earlier . Meanwhile , SolarCity shares closed up 3.4 % , reaching a record high of $ 81.18 , up 43 % from a year earlier . In an interview with Bloomberg , Mr. Musk reveals how the new battery plant will be built along with Panasonic Corporation of Japan . Panasonic 's existing investors , both suppliers to the lithium-ion battery Tesla .