Hollywood actor and avid environmentalist Leonardo DiCaprio recently enjoyed a private tour of Tesla’s gigafactory with company founder Elon Musk.

The short segment featured below has been pulled from DiCaprio’s upcoming National Geographic documentary, ‘Before The Flood’, set to air globally on October 30 in 45 different languages.

While visiting the Tesla gigafactory, DiCaprio had the opportunity to hear about Musk’s ambitions for the future and his belief that solar energy and batteries are the future of sustainable energy. Musk also thinks solar energy could prove immensely beneficial for developing countries and remote villages, foregoing the need to construct electricity plants and power grids.

Tesla’s chief executive also says that it would take 100 gigafactories to power the entire world with sustainable energy.

The company’s lithium-ion gigafactory may be impressive as is, but it is far from complete. In fact, only 31 per cent of the facility is scheduled to be complete by the second quarter of 2017.

When it is fully operational, it will be one of the largest buildings ever constructed and has the potential to produce 150 gigawatt hours of batteries.

VIDEO