A bright idea for wasteful office lighting

A bright idea for wasteful office lighting

Summary: Commercial office buildings are one of the main culprits of the current climate crisis. They consume large amounts of electricity and release excessive carbon emissions into the atmosphere. Adura Technologies has developed a mesh-based lighting system that is reducing costs and consumption inside buildings. The technology consists of wireless radios that plug into florescent light fixtures giving employees more control over their personal lighting space. Adura has also created a dual motion sensing-personal control system that is being used at UC Berkeley that allows students to break the hard-wired connection and control their lighting from their desktop PCs.

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TOPICS: Hardware
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Topic: Hardware

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  • Saving power by using power

    I have examined many of these products, such as occupancy sensors, lighting relay systems, and they fail to address a major problem. Phantom Power.
    The reason panel controlled lighting is successful is that it only requires one single point of control, reducing phantom power due to the reduction of constantly powered items. This device will use power whether the light is on or off, while one of these panels is cost effective, many of these wirelessly controlled items will increase this consumption. Whats .5 watts multiplied by 1000 light controllers.. oh.. 1000 watts, and thats being conservative of the power use of the device. While this does save power because it is there controlling the lights, it increases power consumption due to its own need for power. This system would be best used in a small scale building and not a huge office building.
    National electric code states that there is a limit to the number of lights on a circuit, I am fairly sure it is 16 lights. While 16 lights is enough to light a large room, it would be odd for that room to be controlled separately. The circuit breaker systems that control commercial lighting can separately operate these circuits on command, and a occupancy sensor surely exists that will send the on or off signal to the panel.
    I wonder how much power this specific system will use use to operate on a large scale. Many wiring practices do not encourage turning these occupancy sensors off themselves when the light switch is off at the wall, therefore these systems may save a portion of power, but eventually mass use of these systems will end up wasting power themselves.
    And by the way. Occupancy sensors have existed for a long time. I myself have installed many in various office buildings over the past few years. The issue is the skill of the installers to adjust them or place them so they are not falsely triggered and do not turn off during long periods of still office work, or the engineers ability to properly account for their use in electrical plans. Another downfall is their longevity. These are sensitive devices and they can easily be damaged by a careless worker throwing something at a ceiling.
    t0cableguy
  • RE: A bright idea for wasteful office lighting

    Looks like a practical way of saving power using hi-tech
    means. Shyam
    srshyamsunder2005@...