The United Arab Emirates is addressing a key challenge of renewable energy, its intermittent nature, by planning a $6 billion renewable energy complex designed to provide uninterrupted clean power. The project will include a massive battery storage system to ensure a consistent supply of electricity. Abu Dhabi-based renewable energy company Masdar and a local utility are spearheading the initiative, which aims to integrate 5 gigawatts of solar capacity with 19 gigawatt-hours of battery storage. Officials have announced that the facility is expected to be completed by 2027. “For decades, the biggest barrier facing renewable energy has been intermittency — to…