Yes, not by name, but I know my members have had to make good on guarantees that didn't work. They'll tell me that it's a baseline problem that they were given. They made assumptions about the building that were not right and they did have to make good on those. They don't like to talk about it. You won't find it in the press, but they do exist.
They do guarantee their projects. There is a performance metric that's agreed to in the contract using an international protocol, and if it comes out that the performance is not there, they do make up the difference. That's part of the contract.