using a specific heat of 4184 J/ kg*°C, those 400 megawatts can heat 1200 kilograms of water from 20°C to 100°C every second. That's a lot of hot water. You wo

using a specific heat of 4184 J/ kg*°C, those 400 megawatts can heat 1200 kilograms of water from 20°C to 100°C every second. That's a lot of hot water. You would need a 1 meter diameter pipe flowing at 1.5 meters/sec to supply this.