Check out this interesting article about the plethora of energy standards out there - net zero energy, net zero ready, zero net carbon, etc.
It can be hard to keep track of what the label means, what factors go into a certification and what the standard promotes. For instance, this article points out that a standard rewarding renewable production on-site to achieve neutrality, however you may define it, may invariably promote large roof areas, ie. low density sprawl. In today's world does this make sense?