Currently in the United States, outdoor lighting consumes about 4.4% of its total electricity generation. It is based on this situation that the US House of Representatives recently proposed a new bill calling for the phasing out of energy-efficient old technologies (such as incandescent lamps and halogen lamps) for new energy-efficient and cost-effective lighting technologies (such as high The development of brightness LED) paved the way.
On a global scale, from government agencies, industry and commerce to the general public, active ways to reduce energy consumption are actively sought. Initial attempts were focused on easy-to-achieve goals such as choosing the right residential insulation, using solar panels, and saving energy. Today, there are relatively well-established legal requirements that require us to use energy-efficient white goods, adapters and chargers, consumer electronics and office equipment. In recent years, as the cost of high-brightness LEDs has continued to decline, people have begun to re-evaluate previously accepted products such as standard household light bulbs. In many countries (including the United States, Germany, the United Kingdom, Ireland and Australia), new energy efficiency standards have been raised to the law, which will effectively prohibit the continued use of incandescent lighting.
In a speech, Jane Harm an, the 36th congressman of the US House of Representatives, proposed an "Outdoor Lighting Energy Efficiency Act," which plans to phase out standard light bulbs by solving street lighting problems. Harman said: "The energy savings achieved through energy efficiency will be amazing. According to an authoritative industry organization, the formal implementation of this bill will eventually reduce the energy use of outdoor lighting by more than 25%, saving annually. More than $6 billion in electricity costs. This figure is equivalent to the electricity generated by more than 50 coal-fired thermal power plants."
After the new proposal is approved by the House of Representatives, the first standard will be finalized in 2011, and the subsequent standards will be completed in 2013 and 2015 respectively. At that time, the US Department of Energy will further improve energy efficiency standards. The bill also requires that the brightness of outdoor lighting must be controllable so that users can change their illuminance because people need different levels of brightness at dusk and late at night. This feature is very important because it gives cities, counties, and other users more control over their power levels. The bill is based on the laws that have been implemented in California and the outdoor lighting standards that have been adopted by other states.
The earliest appearance of LED lights on the streets dates back to the 1990s, when city authorities began using solid-state lighting designs to replace incandescent traffic lights. In order to also achieve energy and maintenance savings in LED traffic lights in their street lighting systems, many cities (including Ann Arbor, Michigan) have conducted a wide range of LED streetlight tests. In Ann Arbor, it is estimated that after installing LED street lights, the city will save more than $100,000 in electricity bills per year, reducing greenhouse gas (CO2) emissions by approximately 294 tons per year. These repeatable results seem to indicate that the City Museum will soon use high-pressure sodium and high-intensity discharge (mercury vapor) streetlights following the old incandescent traffic lights, as LED streetlight installations are common in North America, China and Europe.
The main advantage of LED lighting systems is their long service life. LEDs can last for 10 to 15 years, at least three times the life of traditional street lamps. LEDs are an extremely attractive option for low maintenance rates only. In addition, due to the technical characteristics of the LED itself, the ability to accurately control the amount of illumination required, and the ability to adjust the direction of light through LED placement and optical optimization, LEDs are 50% to 80% more energy efficient than previous products. %. Moreover, LED street lights also do not contain mercury, which is undoubtedly a highlight for the world that is increasingly concerned about environmental protection.
A further advantage is that LEDs provide a very uniform light distribution that not only meets current standards, but also eliminates bright spots and glare. This ensures good lighting and reduces the visual fatigue of drivers and passers-by, and does not generate any energy. Since LEDs operate under low and low temperature conditions, they do not experience yellowing or a significant decrease in brightness as the working time increases. In addition, unlike sodium lamps, LED lamps achieve optimal brightness without time delay, which in turn improves lighting without increasing energy consumption.
The Clinton Climate Action Plan (CCI)'s "Outdoor Lighting Program" is currently working with Los Angeles to carry out the largest LED street lighting renovation project in the history of urban development in Los Angeles. CCI's outdoor lighting program also works with multiple partner cities to improve the energy efficiency of street and traffic light systems by integrating technology, procurement and project support. The Los Angeles Street Light Authority plans to replace the city's existing 140,000 street lights with LED street lights over the next five years. The remote monitoring station will automatically report the street lamp failure to the authority directly, thus reducing the street lamp failure time and improving maintenance efficiency. According to the estimates of the Authority, the city will save $48 million in electricity bills and reduce carbon emissions by 197,000 tons during the seven-year period of implementation. Once the investment loan is repaid (the first phase of the loan will be fully covered by the current energy and maintenance cost savings), the streetlight renovation project will save Los Angeles $10 million in annual expenses. This huge project will not only make the streets of Los Angeles more brilliant, reduce electricity consumption and save money, but also reduce light pollution (also known as sky glow).
Former US President Bill & Mid Dot; Clinton said in this year's CCI press release: "If every city follows the example of Los Angeles, reducing the electricity consumption of their street lamps by half, this is equivalent to closing at least 2.5 coal-fired power plants every year. Clinton went on to say: "We can save taxpayers money by doing so. Moreover, we can improve our night sky."
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