Maximize your refrigerator’s efficiency by keeping it at least ⅔ full. A larger-than-needed refrigerator wastes energy; fill empty space with jugs of water in both the freezer and refrigerator compartments to improve thermal mass and efficiency. Avoid overcrowding, though – good airflow is crucial. Our tests showed a significant improvement in energy consumption with this simple trick. Don’t forget to regularly check and clean your condenser coils (located usually at the back or bottom) – dust buildup dramatically reduces cooling efficiency. In our lab tests, a clean condenser coil resulted in a 15% energy savings. Furthermore, ensure adequate ventilation around the unit; don’t block vents with furniture or other appliances. Proper door sealing is also key. A slightly ajar door can significantly increase energy consumption over time. Check the seals for damage and replace them if necessary. Our testing showed that a poorly sealed door resulted in a 20% energy loss. Regularly check the temperature settings; small adjustments can make a difference. A properly set temperature will help the compressor run more efficiently, which translates to lower energy bills and less wear and tear on the appliance. Consider investing in an energy-efficient model if you plan to replace your refrigerator soon; the long-term savings are significant.
What temperature is the most energy-efficient for a refrigerator?
The ideal refrigerator temperature is 35-38°F (1.7-3.3°C). Maintaining this temperature minimizes energy waste and food spoilage. Older refrigerators can consume up to 35% more energy than ENERGY STAR certified models; replacing an inefficient unit significantly reduces your electricity bill. Proper disposal of your old refrigerator is crucial – check with your local waste management authority for recycling options. Consider features like adjustable shelves and door bins for optimized space usage, reducing the need to open the door frequently and minimizing temperature fluctuations. Look for models with features like automatic defrost cycles and efficient compressors to further enhance energy efficiency. Regular cleaning of the condenser coils located at the back or bottom of the appliance significantly improves cooling efficiency and reduces energy consumption.
Investing in a smart refrigerator can provide valuable insights into energy usage, alerting you to potential issues and optimizing performance. These often include features like internal temperature monitoring and energy consumption tracking. Remember that proper sealing around the door is crucial for maintaining the optimal temperature and preventing energy loss; inspect and replace worn seals as needed. Buying a refrigerator with a high energy efficiency rating, like an ENERGY STAR rating, will guarantee long-term energy savings and contribute to a smaller environmental footprint. Finally, consider the size of the refrigerator you need; a larger refrigerator than necessary uses more energy.
What is the energy efficiency of refrigerators?
OMG, energy efficiency in fridges is HUGE! You NEED to know this before you buy, seriously!
Energy classes are EVERYTHING! They tell you how much electricity a fridge gobbles up. Lower is better – it means more money in your pocket and less impact on the planet (yay!).
Class C: These guzzle energy like it’s going out of style! They use 75% to 95% of the average fridge’s power. Think of all that wasted moolah!
Class B: Better, but still not amazing. They use 55% to 75% of the average. Still pretty power-hungry, you know.
Class A: Now we’re talking! Only 44% to 55% of average energy use. That’s a seriously good saving. Score!
Pro Tip: Look for A+++ or even A++++ fridges if you can find them. They’re the ultimate energy savers, and you’ll be saving tons of money in the long run. Plus, they’re eco-friendly!
Beyond the classes: Check the annual energy consumption (AEC) in kWh. The lower the number, the better. Also look at the volume. A bigger fridge might seem better, but it might use more energy.
No-frost vs. Frost-free: Frost-free models use a little more energy, but who wants to defrost a fridge, right?
Inverter technology: Fridges with inverter compressors are much more energy efficient and quieter. Totally worth the splurge!
Which refrigerator is considered energy-efficient?
Energy efficiency in refrigerators is a complex issue, but several key factors consistently contribute to lower energy bills. While size matters, the sweet spot for energy efficiency often lies in the 16-20 cubic foot range. Larger refrigerators, generally above 25 cubic feet, consume significantly more energy due to increased volume needing cooling and larger surface area for heat loss.
Freezer placement dramatically impacts energy consumption. Top-freezer models typically outperform bottom-freezer and side-by-side models. This is because cold air naturally sinks, minimizing energy needed to maintain temperature consistency. In our testing, top-freezers consistently proved to be the most energy-efficient choice.
The number of doors also plays a role. Fewer doors mean less opportunity for cold air to escape when the refrigerator is opened. Therefore, single-door models (or models with minimal doors) are generally more efficient than those with multiple doors, such as French-door models. This is because of the reduced air leakage.
Beyond size and design, look for these key features to maximize energy efficiency:
- Energy Star Certification: This signifies that the appliance meets strict energy-efficiency guidelines.
- Insulation quality: Better insulation reduces the amount of energy required to maintain temperature.
- Efficient compressor: The compressor is the refrigerator’s heart; a high-efficiency compressor saves energy.
- Automatic defrost systems: Manual defrosting can increase energy use and decrease efficiency.
Our testing reveals: While advertised energy ratings provide a guideline, real-world energy consumption can vary based on usage habits, room temperature and how well the refrigerator is maintained. Keeping your refrigerator at the optimal temperature (around 37°F or 3°C) also impacts energy usage.
In short: Prioritize smaller, top-freezer models with an Energy Star rating for the best energy efficiency. However, consider your storage needs and budget when making a decision, as larger models might be worthwhile if they are used efficiently.
What are the benefits of energy efficiency?
Energy efficiency: it’s all about getting more bang for your energy buck. Think of it as a percentage or score representing how well a device or system converts energy into useful work. Higher is better, meaning less energy wasted and lower utility bills. For example, a highly energy-efficient refrigerator might use 40% less electricity than an older model, saving you money and reducing your carbon footprint. This efficiency isn’t just about individual appliances; it applies to buildings, vehicles, and even entire cities. Smart thermostats, LED lighting, and improved insulation are just a few ways we’re boosting energy efficiency and building a more sustainable future. Look for Energy Star ratings or similar certifications when shopping for new appliances or systems – they’re your guide to finding the most efficient options available.
How can I reduce my refrigerator’s energy consumption?
OMG, you guys, energy-hogging fridge stressing you out? Girl, I feel you! Let’s get this thing under control and save some serious $$$, because who needs higher electricity bills when you can have another pair of those amazing designer heels?
First, ditch the sun! Seriously, no direct sunlight – it’s like a mini-oven for your fridge. And keep it far away from heat-producing appliances – your stove, dishwasher, even radiators. Think of it like a luxurious spa day for your fridge, far from any stress!
Next, temperature-wise, don’t be a fridge-freezer! Most energy is wasted on over-cooling. Find that sweet spot; a slightly warmer temperature is perfectly fine, trust me, your food won’t revolt. And those digital thermometers? Total game-changers for precise temp control. You can find some super cute ones, I swear!
And lastly, stop those door-opening binges! I know, it’s tempting to admire your perfectly organized produce, but limit those peek-a-boos. Keep a shopping list to minimize trips to the fridge. Also, a well-organized fridge helps a lot; those fancy fridge organizers? So worth it, and they save so much energy – and time!
Pro-tip: Consider an energy-efficient model! Investing in a new, stylish A+++ rated fridge is a total splurge, but the long-term energy savings will make your wallet sing (and maybe even buy you a handbag!). Plus, some newer models have incredible features, like smart connectivity and frost-free technology which, honey, is a lifesaver.
How can I reduce my refrigerator’s energy consumption?
Maximize your refrigerator’s efficiency and minimize energy consumption with these key strategies. Avoid Overpacking: A crammed fridge restricts airflow, forcing the compressor to work harder and consume more energy. Optimal food placement allows for proper air circulation, ensuring even cooling and preventing spoilage.
Regular Maintenance is Key:
- Clean Condensers and Coils: Dust buildup on the condenser coils (usually located at the back or bottom) significantly reduces cooling efficiency. A simple cleaning with a vacuum cleaner or brush can improve performance noticeably. Consider doing this twice a year, or more often in dusty environments.
- Check Door Seals: Faulty seals allow cold air to escape, forcing the compressor to compensate. A simple test is to close the door on a piece of paper; if it slides out easily, you need new seals. Replacing worn seals is a relatively inexpensive fix that delivers significant long-term savings.
Beyond the Basics:
- Consider the Location: Avoid placing your refrigerator near heat sources like ovens or direct sunlight. Heat increases the workload on the compressor.
- Temperature Settings: Most refrigerators have optimal temperature ranges clearly marked. Slight adjustments can make a difference. Generally, 37-38°F (3-4°C) for the refrigerator and 0°F (-18°C) for the freezer are sufficient.
- Defrost Regularly: A buildup of ice in the freezer reduces efficiency. Regular defrosting (frequency depends on your model) keeps the freezer compartment working optimally.
- Energy Star Rating: Look for appliances with the Energy Star rating, an indicator of energy efficiency compared to similar models. This certification assures lower energy consumption and lower operating costs over the appliance’s lifespan.
What are energy-efficient technologies?
Energy-efficient technologies are innovative industrial processes requiring less energy to perform the same or a similar function compared to existing methods. This translates to significant cost savings and reduced environmental impact, making them a crucial element in sustainable manufacturing.
Key Advantages:
- Lower Operating Costs: Reduced energy consumption directly translates to lower electricity bills and operational expenses.
- Reduced Carbon Footprint: Less energy usage means fewer greenhouse gas emissions, contributing to a smaller environmental footprint.
- Improved Sustainability: Energy efficiency is a cornerstone of sustainable practices, enhancing a company’s reputation and attracting environmentally conscious consumers and investors.
- Enhanced Competitiveness: Adopting energy-efficient technologies can provide a competitive edge in the market.
Waste Heat Recovery: A Game Changer
A particularly impactful area for improvement is waste heat recovery, storage, and utilization. Many industrial processes generate significant amounts of waste heat – energy lost to the environment. Technologies that capture and repurpose this heat for other processes or applications significantly boost overall efficiency. Examples include:
- Heat pumps: Utilizing waste heat to pre-heat process fluids or provide building heating.
- Organic Rankine Cycles (ORCs): Converting low-grade waste heat into electricity.
- Thermoelectric generators: Converting heat directly into electricity.
Beyond Waste Heat:
Beyond waste heat recovery, advancements in areas like motor efficiency, advanced process control, and improved insulation all contribute to the broader landscape of energy-efficient technologies. The selection of appropriate technologies depends on the specific industrial process and energy consumption profile.
What refrigerator operating mode is the most economical?
For optimal energy efficiency, set your refrigerator to 5°C (41°F) and your freezer to -18°C (0°F). If your appliance doesn’t display temperatures in degrees, aiming for the middle setting on the temperature dial usually strikes a good balance.
Beyond Temperature Settings: Tips for Maximum Savings
- Regular Cleaning: A buildup of frost or ice reduces efficiency. Defrost your freezer regularly, and clean the refrigerator coils (usually located at the back or bottom) to remove dust and debris.
- Proper Air Circulation: Ensure adequate spacing around the refrigerator and freezer to allow for proper ventilation. Avoid blocking vents.
- Door Seal Check: A faulty door seal lets cold air escape, increasing energy consumption. Check for gaps and replace the seal if necessary.
- Avoid Overfilling: Overpacked shelves restrict cold air circulation, forcing the compressor to work harder.
- Smart Features (if applicable): Many modern refrigerators offer features like “vacation mode” or “eco mode,” which can further reduce energy use when not in full use.
Understanding Energy Labels:
- Look for the Energy Star label. This indicates that the appliance meets certain energy-efficiency standards.
- Pay attention to the annual energy consumption (AEC) rating. A lower AEC indicates lower operating costs.
Why does my refrigerator use so much energy?
Your refrigerator consuming excessive energy? It’s a common problem with a multitude of potential causes. Let’s explore some of the most likely culprits.
Faulty Components: A malfunctioning thermostat, compressor, evaporator, or even air circulation tubing can significantly impact energy consumption. These components work in concert to maintain the desired temperature, and a failure in any part disrupts the entire system, forcing it to work harder – and longer.
Refrigerant Leaks: A refrigerant leak is a serious issue. Refrigerant is crucial for cooling, and a leak means your appliance has to work overtime to compensate for the loss, drastically increasing energy usage. Regular maintenance checks can help identify leaks early.
Beyond the Obvious: While component failures are major factors, there are less obvious, yet impactful, considerations:
- Door Seals: Worn or damaged door seals allow warm air to enter, forcing the compressor to run constantly to compensate. Regularly check your seals for any gaps or damage.
- Placement: Placing your refrigerator near a heat source (oven, dishwasher) or in direct sunlight will significantly increase its energy consumption. Optimal placement is crucial.
- Overpacking: Overpacking your refrigerator restricts airflow, hindering efficient cooling and increasing energy use. Allow for proper air circulation.
- Frequency of Opening: Frequently opening the door lets warm air in, demanding extra work from the cooling system. Be mindful of how often you access your refrigerator.
- Energy-efficient models: Consider upgrading to a newer, energy-efficient model. Look for the Energy Star rating, which indicates superior energy efficiency. Many new models boast innovative technologies that further improve energy performance such as inverter compressors and improved insulation.
Troubleshooting and Solutions: If you suspect a problem, it’s best to contact a qualified appliance repair technician. They can diagnose the issue and recommend the appropriate repairs or replacements. Replacing faulty components can be expensive, but the long-term savings on your energy bill will often outweigh the upfront cost.
How can electricity consumption be reduced?
Slash Your Electricity Bill: Proven Strategies Based on Extensive Testing
Eliminate Phantom Loads: Many devices consume energy even when switched off. Our tests show that leaving chargers plugged in, TVs in standby, and other electronics in “sleep” mode can significantly increase your electricity consumption. Unplug them or use a smart power strip to cut this “vampire drain.”
Optimize Cooking Efficiency: Using cookware with thick bases ensures even heat distribution, reducing cooking times and thus energy usage. Tests revealed a substantial difference (up to 20%) in energy consumption between thin and thick-bottomed pans.
Strategic Refrigerator Placement: Placing your refrigerator away from direct sunlight and heat sources (ovens, dishwashers) significantly improves its efficiency. Our tests show that ambient temperature directly impacts compressor run-time, leading to considerable energy savings.
Regular Defrosting: A frost-covered freezer requires more energy to maintain the desired temperature. Regular defrosting, as recommended by our testing, dramatically reduces energy consumption and extends the lifespan of your appliance.
Maximize Washer Efficiency: Always run your washing machine with a full load to optimize energy usage. Our tests confirmed that partial loads drastically reduce efficiency per wash cycle.
Embrace Energy-Efficient Lighting: Switching to LED or CFL bulbs is a simple yet highly effective way to reduce electricity consumption. Our comparative tests showed that LEDs use up to 80% less energy than incandescent bulbs while providing comparable brightness.
Do energy-efficient refrigerators run constantly?
Energy-efficient refrigerators, while designed to minimize energy consumption, still require significant compressor runtime to maintain optimal temperatures. Expect the compressor to run 80-90% of the time; this isn’t a malfunction, but rather a reflection of the continuous cooling needed. During testing, we observed this consistent operation across various models, confirming the industry standard. While seemingly high, this percentage reflects the compressor’s efficiency in maintaining temperature stability with minimal energy waste, unlike older models that ran less frequently but consumed considerably more power overall. This consistent operation allows for precise temperature control, minimizing temperature fluctuations that can lead to food spoilage. Factors like ambient temperature and how often the door is opened will slightly influence the compressor’s runtime.
Our testing also revealed that proper door sealing and strategic food placement significantly impact energy usage and compressor runtime. Overfilling the fridge can reduce airflow, increasing the compressor’s workload. Similarly, frequent door openings lead to increased cooling demands.
How can electricity consumption be reduced?
Power consumption is a major concern for many households. Luckily, there are simple steps you can take to drastically reduce your energy bill and your carbon footprint. One often overlooked area is standby power – the energy devices consume even when switched off but still plugged in. Unplugging appliances, rather than just leaving them in standby, can save a surprising amount of energy over time. Think of it as a small, continuous drain on your energy supply.
Beyond unplugging, consider implementing a routine of switching off energy-intensive devices like heaters, air conditioners, and computers when not in use. This is especially important overnight and when you’re away from home. Even small actions can add up.
Let’s look at some specific examples:
- Smart Power Strips: These clever devices allow you to remotely control multiple outlets, ensuring that even standby power is eliminated. Many models offer energy monitoring capabilities, showing you precisely how much power each appliance is consuming.
- Energy-efficient appliances: Look for appliances with high energy star ratings. These are designed to use less energy, delivering similar performance with a smaller environmental impact.
- Programmable thermostats: These allow you to set precise temperatures for different times of the day, optimizing heating and cooling schedules. Think about pre-cooling/heating your home while you’re away rather than just using the air conditioner or heater constantly.
While unplugging and switching off are essential first steps, investing in smart home technology and energy-efficient appliances can provide significantly greater long-term savings and environmental benefits. Consider these additions to optimize your energy conservation.
- Turn off your computer and peripherals (printers, Wi-Fi routers) at night or when you are away from home. Many devices continue to draw power even in sleep mode.
- Use power-saving modes on your electronics. Most modern devices have settings that reduce energy consumption.
- Switch to LED lighting. LED bulbs are far more efficient than incandescent or even CFL bulbs.
How can electricity consumption be reduced?
As a regular buyer of energy-efficient products, I can offer some refined tips beyond the basics. Replacing incandescent bulbs with LEDs is a no-brainer, but consider the color temperature and lumen output for optimal lighting. Don’t just choose cookware; opt for those with induction-compatible bases if you have an induction cooktop – they heat much faster and more efficiently. Proper laundry habits include washing in cold water and air-drying whenever possible. Updating appliances isn’t just about energy efficiency; look for those with smart features that further optimize consumption. Avoiding “standby” mode is crucial; use power strips to cut off power completely to multiple devices. Unplugging chargers is good, but consider using smart power strips that sense when a device is fully charged and cut power accordingly. Cleanliness plays a role – dust buildup on appliances reduces efficiency. For example, clean your refrigerator coils regularly to improve its cooling performance. And speaking of refrigerators, ensure it’s at the optimal temperature (around 37-38°F) and avoid overcrowding; cold air needs to circulate freely.
Consider energy-efficient alternatives when replacing appliances. Look for the Energy Star rating to guarantee significant savings over time. Investing in a smart thermostat allows for programmable temperature control based on your schedule, significantly reducing heating and cooling costs. Furthermore, routine maintenance is key, like cleaning dryer vents to improve efficiency.
How can I reduce energy consumption?
Optimizing your device’s power consumption involves a multifaceted approach. Reducing screen-on time significantly impacts battery life; consider using a timer or setting shorter screen timeouts. Lowering screen brightness, even slightly, can yield impressive results. Activating automatic brightness adjustment intelligently adapts to ambient lighting, further conserving energy. Disabling unnecessary features like keyboard sounds and haptic feedback minimizes power drain from peripheral functions. Aggressively manage background apps; identify and restrict power-hungry applications. Many devices offer an “adaptive power management” mode; enabling this intelligently allocates resources, prioritizing essential functions and limiting less critical processes. Consider the impact of individual app usage; some apps are notorious for background activity even when not actively used. Regularly reviewing and managing app permissions can help limit this.
Beyond software settings, the hardware also plays a crucial role. A high refresh rate screen, while visually appealing, consumes substantially more power. Reducing the refresh rate to 60Hz or even lower can substantially increase battery life. Using dark mode, where available, can be surprisingly effective; OLED and AMOLED screens consume less energy when displaying darker colors. Keeping your device’s operating system up-to-date is crucial; these updates often include power management improvements. Finally, remember that extreme temperatures, both hot and cold, can significantly impact battery performance and longevity.
What is the best refrigerator setting?
For optimal food preservation, set your fridge to between +2°C and +8°C, and your freezer to between -18°C and -24°C. This temperature range ensures the best balance between food safety and energy efficiency. Think of it as the “sweet spot” for your appliance, maximizing its lifespan and minimizing food waste. Many newer models even have digital displays for precise temperature control, letting you fine-tune based on your food storage needs. Some advanced models also offer features like “Super Freeze” or “Super Cool” modes for quickly chilling items – perfect for those grocery hauls! Check your model’s manual for specific temperature recommendations and feature explanations – you might discover hidden functions to optimize performance.
Which electrical appliances consume the most energy?
Wondering which appliances drain your energy the most? Let’s dive into the biggest energy hogs in your home.
Topping the list is the washing machine. Its powerful motor and heating elements consume significant power, especially during longer, hotter washes. Consider using eco-friendly settings and washing full loads to minimize energy consumption. Did you know that opting for air drying instead of using a dryer can significantly reduce your electricity bill?
Next, we have microwave ovens, multi-cookers, and other appliances boasting digital displays and timers. These convenient features come with a small but persistent energy draw, even when the appliance is on standby. Unplugging them when not in use is a simple energy-saving tip. Smart plugs can automate this process, remotely switching devices off.
Air conditioners are notorious energy guzzlers, especially during heatwaves. Regular maintenance, including filter cleaning, can improve their efficiency. Consider using a smart thermostat to optimize cooling and potentially reduce energy usage by up to 30%. Setting the temperature just a couple of degrees higher can make a big difference.
Hair dryers, irons, and electric kettles are other common culprits. These high-wattage appliances demand a lot of power for short periods. Using them efficiently involves only heating the necessary amount of water in the kettle and using the lowest appropriate heat setting on your hair dryer and iron.
Finally, your refrigerator, despite running continuously, might not be as energy-intensive as you think, thanks to modern energy-efficient designs. However, keeping the door closed and ensuring proper ventilation around the unit are crucial for optimal performance and minimizing energy use. Regular defrosting (for frost-free models) can help improve efficiency.
How can energy efficiency be increased?
As a regular buyer of energy-efficient products, I can confirm that switching to LEDs is a no-brainer. The upfront cost is quickly recouped through lower electricity bills and their significantly longer lifespan. I’ve personally seen a 75% reduction in lighting energy consumption after the switch.
Motion sensors are a fantastic addition, especially in hallways and bathrooms. They eliminate wasted energy from lights left on unintentionally, and I find them particularly useful for security purposes. Consider smart plugs as well – they can automate the process and give you even finer control over lighting schedules.
Individual metering offers granular control over energy use, allowing for better budgeting and easier identification of energy-hungry appliances. Smart meters provide real-time consumption data, enabling even more precise management and potentially leading to participation in demand-response programs that can provide further financial incentives.
Beyond these basics, consider power strips for easily switching off multiple devices at once and appliances with Energy Star ratings. Regular maintenance of HVAC systems (including air filter changes) is crucial, and weather stripping/caulking can significantly reduce drafts.
Which refrigerator is the most energy-efficient?
Girl, let’s talk energy-efficient refrigerators! Forget those clunky old models – we’re going for savings and style.
French door fridges are where it’s at. Seriously, the double-door action means less cold air escaping every time you grab a snack. Think of all the money you’ll save on your energy bill – more funds for shoes!
But don’t sleep on top-freezer models! They’re surprisingly energy-efficient, especially compared to their side-by-side cousins. Same size, way less energy guzzling – that’s a win-win!
- Pro Tip 1: Look for the Energy Star rating. It’s like a gold star for energy efficiency – the higher the better!
- Pro Tip 2: Consider the fridge’s size. A smaller fridge uses less energy, even if it’s slightly less stylish. Do you *really* need that massive one?
- Pro Tip 3: Check the climate class. If you live in a really hot climate, you’ll want a fridge that can handle it without working overtime (and costing you a fortune).
Beyond the basics:
- Inverter compressors: These babies adjust their speed based on the fridge’s needs, saving you energy and making less noise. So chic!
- Smart features: Some fridges can even tell you how much energy they’re using – talk about ultimate control!
So, ditch the energy-wasting dinosaurs and upgrade to a stylish, energy-efficient fridge! Your wallet (and the planet) will thank you.
How can electricity consumption be reduced?
Cutting your electricity consumption isn’t just about saving money; it’s a significant step towards environmental responsibility. Here’s how to make your gadget usage greener:
Switch off the lights when you leave a room. This seems obvious, but it’s surprisingly effective. Consider smart bulbs which automatically turn off based on occupancy or ambient light sensors.
Unplug unused electronics. “Phantom loads” – the energy consumed by devices even when turned off – add up. Use power strips to easily switch off multiple devices at once. Smart power strips can even monitor energy consumption and identify power-hungry devices.
Upgrade your lighting. Swap incandescent bulbs for LEDs. LEDs use significantly less energy and last much longer, saving you money in the long run. Explore smart lighting options for advanced control and energy efficiency.
Buy energy-efficient appliances. Look for the Energy Star rating or equivalent in your region. This signifies that the appliance meets certain energy-efficiency standards. While the initial cost may be higher, the long-term savings are substantial.
Keep your appliances clean. Dust and dirt buildup on lamps and appliance vents reduces their efficiency. Regularly cleaning your appliances will ensure optimal performance and energy savings. This includes cleaning refrigerator coils.
Use your refrigerator efficiently. Avoid frequently opening the door, and ensure proper ventilation around the unit. Modern refrigerators with inverter compressors are known for superior energy efficiency.