"If net-zero new construction is a lofty goal, net-zero retrofits are in the stratosphere. Taking an existing building and incorporating enough efficiency and energy production to get to zero is extremely difficult. But that doesn’t stop people from doing it. Two non-profit organizations in different parts of the country are currently undergoing transformations to their facilities with the idea of achieving net-zero. The organizations, situations and approaches to net-zero are different, but their goals are the same—to serve as an example and make the world a better, healthier place." Retrofit Magazine https://retrofitmagazine.com/sustainability-minded-non-profits-work-upgrade-buildings-net-zero-energy/