Wolfgang Feist, founder of the Passivhaus Institut in Germany and co-originator of the Passive House concept, will be the featured speaker at a second annual gathering of Passive House building enthusiasts around Greater Boston.  

Paul Eldrenkamp, the Newton-based builder and building-efficiency leader who helped bring about the first gathering last year, said time, place, and registration fee have not been set, but the site will be near Boston, he says. The fee will pay for Feist's travel expenses.