2000 megawatts is basically the entire GERD project, based on the average river flow throughout the year and dam height.
Handicapping your countries industrialization for crypto mining is stupid. Hydropower isn't free, the GERD cost like $4 billion to be built. To utilize 2000 megawatts would cost billions in hardware, not even including shipping, building the infrastructure, and maintenance. Plus the hardware would only last like 5 years, and would become less profitable every year as newer more efficient ASICs with better hash rate are manufactured.
It's only marginally profitable.