Pulses

1 to 20 of 453

Solar Power in Public Transportation

Dean Dowd on January 26, 2010
Solar-powered mass transit is key to U.S. energy sustainability. Did you know that one full city bus can keep 50 or more cars off ...

Smart meter plans threatened?

Philippa Martin-King on January 14, 2010
It seems that the British plans to install smart meters is threatened by consumer fears. Householders are worried that employees of utility companies could use ...

Measuring energy consumption

Jerry Rodgers on January 29, 2010
The first step in reducing energy consumption is measuring how much you are using. Energy consumption consists of two primary components, power and demand. Power ...

Street lights to be replaced with LEDs

Pippa Rojo on October 19, 2007
Add your own comment to the debate on LEDs, OLEDs, street lighting Ann Arbor , a city in the US, 35 miles west of Detroit, is ...

Compact fluorescent lamps and power quality

Peter Van den Bossche on February 27, 2008
One aspect that is rarely touched in the discussion about compact fluorescent lamps and the ban of incandescent lamps: power quality. Have you ever seen ...

ELECTRIC CAR and ZERO EMISSION IN JAPAN

Shinichi Nishidate on September 19, 2007
Japan NHK Sunday Forum (Education TV) came on the air that the title was Electric car changes our society on September 16.The program was ...

Low voltage power savings ?

Gary Vergine on October 17, 2007
It is a standard assumption that low-voltage lighting saves power in comparison to 'normal' voltage lighting. But the bulbs which have similar light outputs have ...

LEDs without transformer?

Laila Briquet-Mosig on July 9, 2007
Is it possible to have an LED lamp which can be plugged into a normal power source, without going through a transformer?

Hybrid cars

Jack Sheldon on July 1, 2007
I am the proud owner of a hybrid car and am writing these words some 2 weeks after taking possession. Why? Well I guess you ...

Bioethanol. Forget the biological. A bit more agro!

Pippa Rojo on October 3, 2007
It takes 40 kg of wheat to do 100 km in a car. Willy Gehriger, who's head of FENACO, part of the multimillion BISON ...

Nuclear's still out in Japan. Why can't they use solar energy?

Pippa Rojo on July 20, 2007
Continuing the debate on the use of photovoltaics as an alternative to nuclear... This began following the Japanese earthquake of Monday July 16, 2007 and ...

What about the risks of the efficient light bulbs?

Juan Ignacio Galimberti on January 8, 2008
Well, I have been reading about that, but there isn’t enough information about the risk of this efficiency bulb kin relationship with the final ...

Nigeria 'energy savings day'......

Franklin Ossuetta on March 2, 2008
This is a pretty hard scenario to imagine.....or picture. The situation in Nigeria is so poor that we hardly have enough for domestic or ...

Joule: The Unit of Measurement of electrical (really all) energy

Shrikant Dhekne on February 11, 2010
********** Hi Jerry, This situation will lead nowhere, with diverse units remaining holy cows. During transition years methods need to be evolved. Meters may simultaneously display ...

The Internet uses 9.4 % of electricity in the US, 5.3 % worldwide

Bruno Giussani on October 3, 2007
Equipment powering the internet accounts annually for 9.4% (or 350 billion kWh) of the total electricity consumption in the US, and 5.3% (or ...

Gearless wind turbine?

Doug Powell on November 1, 2007
I recently hear that Germany has produced a very large and efficient gearless wind turbine.  Can anyone point me to a website on this?  -doug

solar powered pump + small hydro

Gareth Ruck on February 14, 2008
Hi all - I've just decided to be more pro-active about managing my energy use so please forgive me if my questions seem simplistic! A ...

PowerShift 2009

Elizabeth Crenshaw on January 26, 2009
The Millennials are demanding a clean tech future now. The second Power Shift Conference and Lobbying Push is coming up. This event is not limited ...

cargador del celular

Juan Pablo Pes Daroca on October 4, 2007
Cuando no estamos utilizándolo, es mejor desenchufarlo al cargador del celular, ya que se estaría consumiendo energía en vano. Por eso es ...

Shaking to charge a flashlight?

Pippa Rojo on August 16, 2007
Having thought several times about purchasing a flashlight that could be recharged simply by shaking, i.e. I'd be the one to supply the ...