Posted by:

kcellbio

Very energy efficient and comfortable home with 24 inch thick rammed earth walls. Photovoltaic panels and solar hot water save on energy costs.

What You Need to Know

Description:

5.3 kW grid-tied photovoltaic array with SMA 5000US grid-tied inverter. Electric radiant heat in basement and first floor, radiators on second floor. With seasonal use of the house, electric bills are down to a few dollars per year.

Maintenance Requirements:

None since 2010.

Efficiency or Sustainability Improvements:

Rammed earth walls composed of soil mixture excavated from basement area, mixed with crushed stone, sand, and 7% Portland cement, rammed with backfill tampers. Walls contain 4 in polyurethane foam insulation. Windows are triple glazed. House also has 60 tube Apricus solar hot water collector array and Phoenix composting toilets.

My Motivation:

Control energy use to benefit the environment. We have come very close to achieving a zero net energy home.

Experience with Installer:

We had an excellent experience with the installers and builders. We wanted an energy efficient home with lasting natural beauty. The building technique was used for about one-third of the Great Wall of China, and is long lasting.

Additional Notes:

At the current time we know of no other rammed earth structure in New England, so this project was a learning experience for all concerned.

Open House Info:

This is our fourth Green Building Open House tour. Welcome! Photos of the house at: http://picasaweb.google.com/101073947049974947476

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