If it’s going to function as an energy source doesn’t it need to run a turbine so it can’t be water? The article said it’s going to just use heat directly so I

If it’s going to function as an energy source doesn’t it need to run a turbine so it can’t be water? The article said it’s going to just use heat directly so I guess they could use water. But if ever the need arose it needs to be higher than 100C so it can generate steam for the turbine? Maybe I’m way off, I’m just a guy.