Bret Kugelmass is founder and CEO of Last Energy, which is developing a small modular nuclear fission reactor, the PWR-20, with an output of 20 megawatts of electricity and the ability to provide process heat where required. The reactor fits inside a standard ocean shipping container and is delivered to the site ready to connect to the electrical grid. It uses 4.95% percent enriched uranium fuel and a closed-cycle air cooling system that requires no cooling water source or cooling towers. A complete installed plant will occupy a space around 100 metres square and cost about US$ 100 million per unit. The first reactors are scheduled to go into service in Poland in 2025 and the United Kingdom in 2026.