Recent studies show that net-zero-energy homes cost 5 to 10 percent more than standard construction, but energy savings will likely offset these costs over time.
That gives more states incentives to follow California’s lead. In addition, it’s possible that portions of the new California requirement— which is in the building code—will be included in the International Energy Conservation Code, which serves as the foundation for many state codes.
While this trend takes hold, should utilities outside California be worried, or is this an opportunity?
