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5. Efficiency and low-waste strategies in the lower right column.

Friday, April 11, 2008

Ultimate Light

Delta's new energy efficient, high brightness LED lamps

Delta's High Brightness LED

Delta's High Brightness LED

April 10, 2008 The world’s largest lighting and building display exhibition, Light+Building 2008 in Frankfurt, continues to produce more bright ideas with Delta Electronics, Inc. announcing it has developed an advanced, energy-saving High Brightness 5W/9W/12W LED Lamp, which is 100% compatible with current sockets (E27) and is similar in appearance to compact fluorescent lamps (CFL) of the same wattage. The lamp is easily installed and readily replaces CFL and incandescent lamps. Advantages of the Delta High Brightness LED Lamp include: power-saving, excellent thermal dissipation & color rendering index (CRI), high efficiency, and long life. Of special note is the lamp's outstanding energy-efficiency, especially at lower environment temperatures.

Delta's LED Lamp offers superior light efficiency to CFLs and five times higher than incandescent lamps while Delta's novel heat sink design also delivers 25% higher thermal dissipation than other LED lamps on the market. The lamp offers a CRI of up to 80% (sunlight is 100%) and is particularly well-suited for low temperature environments. At 0°C, the efficiency of the LED lamp is six times higher than a CFL of the same wattage. Lamp life is greater than 35000hrs, which is six times longer than CFLs and 20 times longer than incandescent lamps. Produced under lead-free conditions, the LED Lamp is mercury-free, 100% RoHS compliant, and Delta predicts the luminous efficacy of the lamp will reach 70 lm/W by July 2008. In addition to the 5W/9W/12W LED Lamp, Delta is demonstrating LED lighting for outdoor use such as street lamps and floodlights that is based on the same technology.

For further info visit Delta.

Technology for Reducing Energy Use

Electricity And Gas Consumption At A Glance


The EWE Box enables customers to monitor their electricity and gas consumption any time. (Credit: Copyright EWE, Fraunhofer-Gesellschaft)

ScienceDaily (Apr. 11, 2008) — People who want to save energy should always keep an eye on their consumption. The EWE Box offers customers a neat solution: It enables private households to monitor their electricity and gas consumption whenever they want – and save costs thanks to new pricing models.

In some European locations, once a year, someone from the electricity or gas works comes to read the meter. Soon afterwards, the customer receives an invoice listing the power consumption for the whole year. It does not reveal precisely how much energy the customer has used at what times or with which devices. This has been the situation in the past. In future, however, private households will always be able to check their power consumption – at all times of the day and night.

With the support of the Fraunhofer Application Center System Technology AST, scientists at the Fraunhofer Institute for Solar Energy Systems ISE have developed a new solution in collaboration with Oldenburg-based energy provider EWE. It enables customers to keep track of their current electricity and gas consumption at all times. "The days of ‘stupid’ meters are over," says ISE project manager Dr. Harald Schäffler.

The new metering technologies are intelligent: "The EWE Box is an innovative communication gateway that records and saves the readings from the electricity and gas meters and transmits them to a control center via DSL." This metering and display method – known by experts as ‘smart metering’ – has a particular advantage: "The power provider can offer the customer individual pricing models, depending on factors such as the load, the time of day or the time of year," explains Schäffler. A different price rate could apply in summer, for instance, when little heating is required, than in winter.

The researchers have developed a special LCD display so that users themselves can always keep tabs on their energy consumption and benefit from the various pricing models. The EWE Box constantly transmits the measured values by radio to the display, which shows the current power usage in real time. If the user switches on a ‘power-guzzling’ device, the effects can immediately be seen on the display.

Also displayed are the hourly and daily totals for electricity and gas consumption, costs and CO2 emissions. Customers can also view their stored power consumption data via a personal Internet access and receive a monthly power consumption and cost analysis plus a forecast of their probable annual energy costs in future. In this way, users are in control of their energy management themselves, and saving becomes child’s play. The system will be tested by EWE in May as part of a field test involving 400 private households in the Oldenburg, Germany, area. The ISE and the AST will support and monitor the experiment and evaluate the results.

Adapted from materials provided by Fraunhofer-Gesellschaft.