Among the seven emirates in the UAE, Abu Dhabi is the wealthiest. Abu Dhabi is the largest emirate and holds the majority of the country's oil reserves. It has a significant share in the country's GDP and is home to some of the largest companies in the UAE, such as Abu Dhabi National Oil Company (ADNOC), Etihad Airways, and Abu Dhabi Investment Authority (ADIA), one of the world's largest sovereign wealth funds.
Moreover, Abu Dhabi is also investing heavily in other sectors to diversify its economies, such as tourism, finance, and renewable energy. The city is home to several world-class tourist attractions, including the Louvre Abu Dhabi, Ferrari World, and Yas Island, which attract millions of visitors every year. Abu Dhabi also has a rapidly growing financial sector, with many local and international banks setting up their operations in the city.
In addition, Abu Dhabi has made significant investments in renewable energy, particularly in solar energy. The city is home to the world's largest single-site solar project, the Noor Abu Dhabi Solar Plant, which has a capacity of 1.2 GW.
Overall, while all the emirates in the UAE are prosperous, Abu Dhabi stands out as the wealthiest due to its significant share in the country's GDP, its vast oil reserves, and its efforts to diversify its economy.