Tag: efficiency lighting

Luminous Efficacy. Energy efficiency of light sources is typically measured in lumens per watt (lm/W), meaning the amount of light produced for each watt of electricity consumed.

Sustainable News and Views

Sustainable News and Views

This week I’ve filled my blog to overflowing. Maybe it is an experiment: Can writing more about using less lead to energy savings? It might be hard to quantify, but I’m betting on the power of the media, and hope you will follow this trek of news and views.

Here’s a

Improved Energy Performance Equals Better Human Performance

Improved Energy Performance Equals Better Human Performance

The Catalytic Converter and the Light Bulb First, the automobile: It really didn’t take that long after the invention of the automobile for reports of excess smog from cars to start coming from Los Angeles. This was in the mid-1950s, and the news reached the French inventor Eugene Houdry, inspiring

Brighter Prospects

Brighter Prospects

According to the US Energy Information Administration, lighting consumes the most kilowatt-hours per square foot in commercial buildings than anything else. As lighting technologies improve, the difference between different light sources is just a matter of degree. Each type of light comes with benefits and drawbacks, and thus some are

A Corporate Commitment

A Corporate Commitment

When a global corporation makes a commitment to environmental sustainability, and puts money into its mantra of change, it’s worth taking note. PepsiCo, which started out with Pepsi Cola in 1898, began turning green exactly 100 years after its first fizzy brown cola. 1998 saw the shift in hue, and

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