Sure. The essence of the performance contract is the savings, that is, what savings can be achieved? From there, it really is up to the client in terms of how long they want to have that annual savings stream focused on paying back the capital, the principal, and the interest. If their tolerance is only eight years, the project will be a certain size. But if they can broaden that out to maybe look at a 20-year term—and we are starting to see some projects of that value—they can achieve a whole lot more with that larger scope, that larger budget. They can start to look at replacing a chiller, maybe improving or replacing the entire mechanical system. That is really only enough budget money to upgrade it, not replace it.
There are some decisions there that the customer, the owner, the manager of the facility can make. It's not something we prescribe. It really is about what the customer is willing to look at, what they can entertain within their own limitations and constraints.