In the United States, transmission and distribution losses accounted for 260 teraWatt-hours (billion kWhs) of energy last year. Here’s a report in which Duke Energy, Silver Spring Networks and Power Analytics share their strategies for cutting these distribution losses, thus …
Category: Efficiency
From Guest Blogger Daniel: A Bright Future for Street Lighting
Over 50 years ago, an exciting new light source emerged and was quickly put to its first practical use in vehicle indicators. Nowadays, the light emitting diode (LED) is put to widespread use, from television remotes to aircraft landing lights …
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Low-hanging Fruit in Greenhouse Gas Reduction: Energy Efficiency
As we frequently discuss, the real low-hanging fruit when it comes to greenhouse gas reduction lies more in energy efficiency than it does in renewables. Efficiency invokes largely proven and inexpensive technologies, and holds the promise of putting many millions …
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Efficient Motors – “Massive Yet Tiny”
Fans of highly efficient internal combustion engines will be interested in this: a modern-day variant on a Wankel rotary engine of 50 years ago. By firing 16 times per revolution, it achieves extremely high torque in a very small volume; …
Smart-Grid's Value Called Into Question
Here’s an article that points to a controversy about smart-grid, i.e., about the concept of two-way communication between the electric generation plant and the customer, and the application of intelligence to flow of information. Apparently, someone is alleging that the …
Retrofitness and Thoughtful Building Design
Some of the fastest return on investment you can get is by retrofitting a leaky, energy wasting building with high R-value insulation and efficient appliances. Many estimates show that US buildings use close to 50% of the total annual energy …
From Guest-blogger Adam Barley: Infographic on Energy-Saving Tips
Guest-blogger Adam Barley from the U.K. represents Ebico, a non-profit organization that supplies both gas and electricity to households across Britain, and offers some handy and informative energy-saving tips. Here is an infographic on energy efficiency and conservation that readers …
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Energy Efficiency, Conservation, and Renewables — Good Ideas Regardless of How They're Received
It’s the birthday of journalist and activist Jonathan Kozol, a teacher in Boston, who wrote largely on his experiences with school segregation and institutionalized racism. I had an extremely progressive English teacher my junior year in high school who guided …
A Renaissance in Environmentalism? Energy Efficiency Is Starting to Make a Real Difference
I’m a big fan of renewable energy in all its forms, but, as I’ve often commented, efficiency is really the low-hanging fruit in terms of reducing the environmental footprint associated with energy. In the U.S. alone, the efficiency technologies we’ve …
UK Receives Top Score in Energy Efficiency
Congratulations to Aedan Kernan (2GreenEnergy contributor) and our other friends in the UK. Your fine country received top honors in terms of energy efficiency rankings — #1 out of the 12 nations considered. American Council for an Energy-Efficient Economy (ACEEE), …
