“Low-E” Windows Maximize Buildings’ Energy Efficiency

Low-E stands for low emissivity, and these windows are constructed to minimize heat transfer through the glass. Since windows are essentially huge holes in the walls of a building, choosing a low-E window design that’s appropriate for local climate and architecture can greatly increase a structure’s thermal efficiency, while reducing energy use and utility costs.

Boeing 787: The World’s Most Efficient Airliner

Air travel can present an efficiency dilemma. Trips that wouldn’t be possible by any other means because of time or distance are suddenly viable – though when it comes to manufacturing and fuel resources, airplanes admittedly aren’t the most efficient mode of transportation. But Boeing’s newest passenger jet, the 787 Dreamliner, aims to take a big efficiency step forward with …

HippoRoller Water Carrier – Simple Efficiency With A Far-Reaching Payoff

Water is an immediate, fundamental need for human survival, but one in six people worldwide don’t have immediate access to water resources, particularly in arid regions of southern Africa. The HippoRoller is a deceptively efficient water carrier with the potential to offer huge health, economic, and social benefits to developing communities.

Old Running Shoes Never Die – But Brooks BioMoGo Really Does Fade Away

A critical aspect of a product’s “efficiency” involves not just what it does, but also where it comes from and where it goes after its useful life. Brooks has taken an innovative step to improve the life-cycle efficiency of its running shoes with its biodegradable BioMoGo cushioning material.

2010 Review Of Tankless Water Heaters

Tankless water heaters have been used in Europe and Asia for 50 years, and they are gaining popularity in the US. Right now they represent about 8% of new sales in the US. Tankless heaters, also called on-demand, flash or instant water heaters, qualify for a $300 federal tax credit. How efficient are tankless water heaters?

Best Electric Kettles

Stovetop kettles are nostalgically cute in movies and lovable as collector’s items, but when it comes to our time-crunched, energy-efficient world, electric kettles–which boil water twice as fast as their stovetop counterparts–are the way to go.

LiFePO4 Batteries: A Breakthrough For Electric Vehicles

LiFePo4_battery_packs_for_EV_24V150Ah

Note: If you looking for AA-sized LifePO4, you can find them here. Soon, we’ll probably be seeing Lithium Iron Phosphate (LiFePO4) batteries being used in most electric cars and bikes. This new battery type is set to dominate the market. Based upon lithium ion technology, LiFePO4 batteries offer many advantages over lithium cobalt dioxide (LiCoO2) batteries which are commonly used …

Dockside Green Awarded World’s Highest LEED Score

We featured the innovative Dockside Green community previously on MetaEfficient. Recently, the entire community was certified to be built to Platinum LEED (leadership in energy and environmental design) standards. It was awarded the highest LEED score in the world.

The Best Toaster Ovens

The Best Toaster Ovens What are the best toaster ovens? Toaster ovens are efficient devices for cooking small meals. They typically use two 750 watts heating elements and draw a total 1500 watts, whereas electric ranges draw about 3000 watts (and thus require a 240 volt electric socket). Toaster ovens also heat up more quickly, due to their smaller size. …