On April 3, 2018 Climate Action reported that Saudi Arabia “announced plans to work with Japanese-based SoftBank to build a massive solar project in the desert, which could be worth up to $200 billion.
The unprecedented project will vastly increase Saudi Arabia’s renewable energy capacity, which remains small despite the country’s large supply of sunshine. The deal means up to 200 gigawatts (GW) of solar power could be built within the Kingdom by 2030, an amount which would vastly dwarf current projects. The largest solar farms to date are between 1-2GW.”
You may read the article on the Climate Action internet site.