I think it would all complement the goal of reaching net-zero energy. It's not competitive in our approach; rather it's enabling the tools to get to net zero and remembering that net-zero energy homes represent the path to net zero. I say that because if we have targets for solar and for geoexchange systems and we have targets for other on-site generation, these will all be tools to allow the builder to consider for his or her marketplace what will sell. If we provide or illustrate a standard for net zero, then it's that path to getting there that will be important. And having targets for solar or having targets for other on-site generation will complement that journey to net-zero energy, at which point we'll see mainstream homes in the marketplace with these varieties of technologies.
So, yes, it would help support all of them.