Little House on the Trailer

Dee Williams decided to downsize from a 1,500 square foot home to a 84 square foot home after a trip to Guatemala. She built her current home, “The Little House,” herself for about $10,000. With a propane tank for heat and electricity coming from solar panels, Williams cost of living runs extremely low. Consider the … Read more

Cornell Students Build Sustainable House in Nicaragua

Over winter break, Cornell students began building an affordable and environmentally sustainable model house in Nicaragua. The students, who are part of Cornell University Sustainable Design — an organization that promotes sustainability through design — traveled to Nagarote, Nicaragua to build the house. The house will serve not only as a home for a family, … Read more

Energy Efficient Photovoltaic Production

The Optical Cavity Furnace is a relatively new type of furnace that uses light and optics rather than other sources to create silicon-based photovoltaic (PV) cells. The new process uses only half the amount of energy to make conventional PVs. The recent innovation uses a series of lamps in a reflective chamber to create temperature … Read more

Making Things Glow

The lamps of yesteryear, incandescents, produce light when electricity heats a thin filament. This causes it to glow. The quality of light is pleasing to many. But the lamps only last about 1,500 hours at best. They’re also inefficient. Roughly 90 percent of the energy is emitted as heat rather than light. Full,  partial, or … Read more

Empowerhouse — From Concept Home to Family Residence

One of the green concept homes showcased at the Department of Energy’s 2011 Solar Decathlon now has a permanent address in Washington, DC. The design is based on several net-zero energy systems that reach peak efficiency when they are joined together. A rainwater harvesting system captures water from the roof and adjacent land, minimizing the … Read more

The Social Unit

Wouter Kalis and Corinne de Korver are two Dutch designers who have long been aware of the overall importance of sustainable accommodations throughout the world. Based in Amsterdam, the duo are dedicated to socially-conscious designs that incorporate simple and often recyclable elements, such as their most recent piece, “Social Unit.”  Devised as a solution for … Read more

Having the Environmental Footprint of a Toddler’s Flip-flop

Deciding to live in a tiny house involves making some big lifestyle choices. You’ll need to be happy with minimal belongings — hoarders need not apply. But cozy quarters also offer huge advantages. Tiny houses are far more affordable than standard-size houses. Most owners of tiny homes live mortgage-free. The lower building costs allow many … Read more