[VorpalWay]

You might (but probably not) be able to do district heating with this, but electricity generation is not going to be efficient. Heat is a very low grade form of energy, and you need a large differential to drive a turbine efficiently.

If you cycle between 45 C and 55 C water temperature (as mentioned by the press release), you are only getting a 10 C delta. That isn't even enough for district heating, probably not even with heat pumps.

Now if you have something like a steel foundry, that have much hotter cooling water, you can absolutely use the heat for district heating, but even then it usually isn't enough for cost effective electricity generation. Even when it is waste heat, as the equipment to handle it still costs money and requires maintenance.

[amluto]

> If you cycle between 45 C and 55 C water temperature (as mentioned by the press release), you are only getting a 10 C delta.

You are calculating the wrong delta T. To heat a space, you need your working fluid to be warmer that the space you’re heating by an appropriate amount.

55°C is certainly on the cool side to heat a building, but it’s entirely workable with a high-area, highish-thermal-conductivity system. Here’s an actual chart:

https://www.warmboard.com/wp-content/uploads/2022/04/WaterTe...

You don’t actually want an absurdly warm floor.

Even for buildings that need warmer fluid, water at 45-55°C is a fantastic source for a heat pump.