River Green New Capital is a new city in Egypt that is being built on the banks of the River Nile. The project is expected to cost around $45 billion and is being developed by the Egyptian government in partnership with the private sector. The city is being constructed on an area of about 66 square kilometres, located about 45 kilometres east of Cairo.

River Green New Capital is being developed as a modern, sustainable city with a focus on green technology and renewable energy. The city is expected to be home to over 5 million people, and will include residential, commercial, and industrial areas. The city will also feature a large park, a golf course, a technology park, and a university.

The city will be powered by renewable energy sources such as wind and solar, and will feature a modern transportation system with a light rail system and an underground metro system. The city will also have an advanced waste management system, with a focus on recycling and composting.

River Green New Capital is expected to create thousands of new jobs in Egypt, and will help to boost the country's economy. The city is also expected to attract foreign investment, and is seen as a potential hub for technology and innovation.

The project is expected to be completed by 2026, and is part of the Egyptian government's plan to develop new cities across the country. It is hoped that the project will help to create a more modern and prosperous Egypt.