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U.S. Energy Star

Certification Introduction

Energy Star is an energy conservation program led by the U.S. government, mainly for consumer electronics. The ENERGY STAR program was launched in 1992 by the U.S. Environmental Protection Agency (EPA) and the U.S. Department of Energy (DOE) to reduce energy consumption and reduce greenhouse gas emissions. The scheme has since been adopted by Australia, Canada, Japan, Taiwan, New Zealand and the European Union. The program is voluntary, and ENERGY STAR standards are typically 20-30% more energy efficient than U.S. federal standards. The earliest products to cooperate with this plan are mainly computer and other information appliances, and then gradually extended to electrical machinery, office equipment, lighting, home appliances and so on. Later, it was extended to buildings. The US EPA has actively promoted the Energy Star Building Program since 1996. The EPA assists voluntary participants in evaluating the energy use status of their buildings (including lighting, air conditioning, office equipment, etc.), planning the building. The energy efficiency improvement action plan and follow-up work of things, so some residential or industrial and commercial buildings that have introduced new concepts of environmental protection can also find the ENERGY STAR logo.

Development status

Seven countries and regions around the world have participated in the ENERGY STAR program promoted by the US EPA, namely the United States, Canada, Japan, Taiwan, Australia, New Zealand, and the European Union. Since 2001, the International Energy Star Program Conference has been held annually. Now the products included in the scope of this certification have reached more than 30 categories, such as household appliances, heating/cooling equipment, electronic products, lighting products, etc. Currently, lighting products, including energy-saving lamps (CFL), are the most popular in the Chinese market. , light fixtures (RLF), traffic lights and exit lights.

Applicable product scope

Computers and office equipment: such as monitors, printers, fax machines, copiers, all-in-one machines, etc.;
household appliances and similar household products: such as refrigerators, air conditioners, washing machines, televisions, video recorders, etc.;
heating and cooling equipment: heat pumps, boilers, Central air-conditioning, etc.;
large commercial buildings and newly built houses, doors and windows, etc.;
industrial and commercial products, such as transformers, power supplies, etc.;
lighting: such as household lamps, etc.;
commercial food equipment: such as commercial ice cream machines, commercial dishwashers, etc.;
others Commercial products: vending machines, channel signs, etc.
Products currently targeted are: fluorescent lamps, decorative string lights, LED lamps, power adapters, switching power supplies, ceiling fan lights, consumer audio-visual products, battery charging equipment, printers, home appliances and a variety of other products.

Test content

Test content included with ENERGY STAR:

Safety, EMI, surge, noise (non-Energy Star energy efficiency test items) Optical performance and energy efficiency test items:

1. Light effect, luminous flux

2. Color temperature, color deviation, color rendering index

3. Light intensity distribution, regional luminous flux distribution

4. Inhomogeneity of chromaticity space

5. Switching cycle

6. Luminous maintenance rate

7. Chroma maintenance rate

8. Size

9. Electrical parameters

ENERGY STAR Residential Program

The EPA's ENERGY STAR Residential Program is a nationwide volunteer program to build a new type of home that is 30 percent more energy efficient. Eligible ENERGY STAR homes are subject to third-party verification that the builder has appropriately implemented energy efficiency measures. As long as they can see the ENERGY STAR logo, home buyers who are not experts can make purchasing decisions with confidence. In general, ENERGY STAR homes are 30% more energy efficient than homes built to common energy codes, while protecting the environment and saving occupants energy bills. The construction of ENERGY STAR homes benefits not only buyers but also builders, mortgage lenders and other organizations in the housing industry, so home builders across the country support the ENERGY STAR Residential Program.

Homes are usually new construction because it is much simpler to build a home that complies with energy efficiency regulations than to renovate an existing home. While retrofitting a home to earn ENERGY STAR can be expensive, it can significantly reduce energy bills, so retrofitting an existing home with energy efficiency is still a good idea. When replacing air conditioning, electrical equipment or lighting, you should also consider purchasing products that bear the ENERGY STAR logo, which can further improve the energy efficiency of your home.

The ENERGY STAR Residential Program uses the Residential Energy Rating System (HERS) to determine a home's energy efficiency score. Both new and existing homes must meet the same energy efficiency standards to receive the ENERGY STAR badge. In order to get a HERS assessment, or to seek a path to the ENERGY STAR mark, it is also necessary to consult a local qualified residential energy assessment agency to compare a model home (which is the same size and shape as the home being assessed and meets the minimum energy code requirements), the HERS evaluation system conducts objective and standard evaluations of residential energy efficiency. HERS assessment scores range from 0 to 100. The score for the model home is 80. Compared with the model house, every 5% reduction in energy consumption equals one point increase in HERS. The lowest HERS rating for an Energy Star home is 86. The HERS assessment includes on-site inspection of the residence. This inspection includes blower door testing and duct leak testing. The results of these tests, along with other information about the residence, are fed into a simulated computer program to calculate the HERS score and estimate the annual energy bill.

Energy Efficient Windows
ENERGY STAR Homes are equipped with high performance energy efficient windows that increase the energy efficiency of the home. Quieter indoor environment - multi-layer glazing and sealed window frames block external noise; prevent fading of curtains, furniture and floors - energy efficient windows are covered with a low reflectivity coating that blocks 98% of UV rays; lower operating costs - -Energy-saving windows make the house reduce heat loss in winter and prevent heat absorption in summer; quality improvement - energy-saving windows are made of high-quality materials, easy to use, and provide users with additional protection. Windows occupy about 10-25% of the exterior wall area of a house. Depending on the climate, it consumes 25-50% of energy when heating and cooling a room. Therefore, when building a new home, it is crucial to consider the use of energy efficient windows.

Heating and Cooling Equipment
ENERGY STAR homes are equipped with properly sized, efficient heating and cooling equipment. With proper attention to air duct sealing, home insulation, and energy efficient windows installed during home construction, heating and cooling equipment in ENERGY STAR homes is often less wattage than homes built to general energy codes.
Lower cost of ownership - heating and cooling equipment does not need to be overloaded;
less maintenance problems - heating and cooling equipment always operates at an optimal state;
quieter home environment - no need to constantly and frequently switch over-power equipment.
The lack of tight air and ventilation ducts means that the heating and cooling equipment of ordinary houses needs to be increased in power to quickly meet its cooling and heating requirements. But this kind of high-power equipment has great disadvantages: ① It cannot run for a long time to reach its most efficient operating level; ② When the system cannot run for a long time to remove moisture from the air, it leads to the problem of house humidity; ③High-power equipment often causes the equipment to be paralyzed quickly because of frequent startup. Tight air and ventilation ducts reduce the need for air-conditioning gas to heat and cool the home, thereby avoiding the need for high-power equipment.

Improved Insulation
ENERGY STAR homes have greatly improved insulation performance compared to those built to common energy codes. The improved thermal insulation not only prevents excess heat and cold from spilling out, but also maintains a constant temperature between rooms.
Increased comfort - maintains a constant temperature throughout the home and between rooms.
Lower cost of ownership - HAVC equipment compensates for the small amount of heat and cold exchange in the house in winter and summer.
In order to effectively maintain the temperature of the house, continuous thermal insulation inside and outside is necessary. The insulation must be laid without cracks, curls or compressions. ENERGY STAR homes must also pay attention to thermal insulation around obstructions such as pipes, electrical wiring and outlets.

Sealed Conduit
ENERGY STAR homes have significantly higher conduit tightness requirements than homes built to common energy codes. Sealed ducts are essential for saving energy and maintaining the comfort of your home.
More sustained comfort—assignment to each room
significantly improves indoor air quality—reduces room intake of dust and other pollutants from the outside world.
Lower cost of ownership - reduce the need for air conditioning gas in the room. In a typical American home, 20-30% of the air leaks from the ducts, which means a lot of unnecessary money is spent to make the room warmer or cooler. Duct systems should be kept sealed and locally tested to reduce air-conditioning gas leakage.


energy-efficient retrofitting
existing homes can use the ENERGY STAR Residential Benchmark, an internet-based assessment tool, to compare the annual energy consumption of similar homes in their country. This tool helps owners of completed homes understand whether their homes meet energy efficiency requirements and whether they should upgrade their home energy efficiency measures to increase energy efficiency. On the ENERGY STAR website, the tool also helps owners of established homes quickly decide which home retrofit options to choose to improve energy efficiency.

The ENERGY STAR Residential Program also offers a Residential Retrofit Toolkit to assist in energy-efficient retrofits in established homes. The average household spends 1,400 per year on energy use bills. The help of the "Home Improvement Toolkit" can reduce these expenditures by 30%, and almost 400 When repairing, rebuilding or improving an existing home, the energy saving measures in the "Home Improvement Toolbox" It helps homeowners improve the energy efficiency, value and comfort of their homes, and protects the environment by reducing energy consumption. For homeowners, the Home Improvement Toolkit makes home improvement and renovation projects easier.