Apple‘s data centre infrastructure at the Reno Technology Park has been expanded under the company’s plans to extend cloud capacity, Apple Insider has revealed.

Four hours east from Silicon Valley, the organisation’s data centre hosting the iCloud services was first opened in 2013.

The building is part of a larger project to build one of the world’s greenest data centres featuring rainwater culverts, security fencing and sophisticated water cooling systems.

The energy efficiency of Apple’s Reno data centre is capable of competing with Sweden’s carbon-negative data centre currently being built.

The complex is set to grow even more after the iPhone 6 developer reserved a further 345 acres of land surrounding the current warehouses.

A future development in the area will include a partnership between Apple and NV Energy, who owns existing solar facilities near the data centre.

In 2013, Apple revealed plans to generate "43.5 million kilowatt hours of clean energy, equivalent to taking 6,400 passenger vehicles off the road per year," which may become a reality after a new solar plant is built across 137 acres adjacent to the park.

Apple’s recent launch of the iWatch and constant growth in the number of devices used by consumers, is leading the company to re-adjust its storage strategy.