Zero Net Energy Buildings


Marc Rosenbaum’s ‘Zero Net Energy Buildings’ has helped students produce hundreds of zero net energy home designs since 2011, many of which have been built.

Air-to-Water Heat Pump & Ventilation Retrofit: A New Free Course

Here’s the story of “Finally Fossil-Fuel Free: Air-to-Water Heat Pump & Ventilation Retrofit”, a new free course presented by Brian Just from the Vermont Energy Investment Corporation. His presentation is offered in partnership with the Northeast Sustainable Energy Association.

Air-to-water heat pumps have generated a lot of excitement for their enormous retrofit potential. This case study […]

Hempcrete 101: A New Free Course

Here’s the story of “Hempcrete 101”, a new free course presented by Tom Rossmassler, Alex Sparrow, Bruce Friedman, and Jennifer Martin, offered in partnership with the Northeast Sustainable Energy Association.

In this presentation we will take a deep dive into the rich world of carbon-beneficial materials that are helping to lead our industry in responsible design […]

Scalable (Near-Zero Energy) Multifamily Retrofits: A Case Study

Here’s the backstory on “Scalable Multifamily Retrofits”, a new free course presented by Chris Benedict, Margo Valdes, and Ian Shapiro, offered in partnership with the Northeast Sustainable Energy Association.

Energiesprong and practitioners selected by RetrofitNY are developing standardized and scalable methods to achieve whole-building near-zero energy retrofits while maintaining multifamily tenants in place. Energiesprong, based in […]

Unvented Roofs Without Spray Foam: A New Free Course

Here’s the backstory on “Unvented Roofs Without Spray Foam”, a new free course taught by Kohta Ueno and offered in partnership with the Northeast Sustainable Energy Association and Building Science Corporation:

Back in 2016, the Building Science Corporation team started a multiyear experiment, sponsored by Building America, on unvented roofs without spray foam or exterior rigid […]

Comfortable, Resilient Net-Zero Buildings Aren’t Just Residential

Hampshire College’s R.W. Kern Center achieved zero net energy building status due to its passive solar orientation, high levels of insulation, airtight envelope and triple glazed windows. The building also includes air source heat pumps, and a 118-kW rooftop solar array capable of generating more than enough energy to meet the center’s needs on an […]