Texas has an isolated grid. They can't buy or export power. This causes grid overloads. People have ended up freezing and dying in heat waves due to power outages.
You said "maybe it ok, maybe it saves money even if there are catastrophes, but I don't even know what the money is like".
Why would you say that a terrible power grid induces crisis is ok at all, let alone when you don't even know how the money breaks down?