Man Retrofits Freezer to Make an Ultra-Efficient Fridge

An off-grid experimenter in Australia, Tom Chalko, has retrofitted a chest freezer to create a fridge that uses only 100 watt-hours (0.1 kWh) per day! Why a chest freezer? Tom points out that vertical door refrigerators are inherently inefficient. As soon as you open a vertical fridge door the cold air escapes, simply because it […]

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Efficient Booklight: LightWedge LED

The LightWedge is another LED book light. We like the night vision-friendly red LED illumination version. The light has two illumination modes, and can be changed at a touch. If it were not made of acrylic, it would be that much more meta-efficient. Takes four AAA batteries. Thanks to Thomas for the tip. Available from: […]

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