Energy Efficiency Improvements for New Home Construction

Building a new home is an exciting endeavor, but it’s also an opportunity to make a positive impact on the environment and your wallet. Energy-efficient homes are not only good for the planet, but they can also save you money on your energy bills over the long term. With advancements in building materials, technology, and design, constructing an energy-efficient home is more accessible than ever before.

This guide delves into the key aspects of energy efficiency in new home construction, exploring various techniques and technologies that can significantly reduce your energy consumption. From optimizing the building envelope to incorporating renewable energy sources, we’ll examine the practical steps you can take to create a sustainable and comfortable living space.

Energy Efficiency in New Home Construction

Energy efficiency is becoming increasingly important in new home construction. It offers significant environmental and economic benefits, contributing to a sustainable future. By incorporating energy-saving features and technologies, new homes can reduce energy consumption, lower utility bills, and minimize their environmental impact.

Current Trends and Regulations

The construction industry is witnessing a growing emphasis on energy efficiency. Governments and regulatory bodies are enacting stricter building codes and standards to promote energy-efficient construction practices. These regulations aim to minimize energy consumption and carbon emissions associated with buildings.

Energy Star Program: This program, administered by the U.S. Environmental Protection Agency (EPA), provides a rating system for energy-efficient appliances, building materials, and homes. Homes that meet Energy Star standards typically use 15% less energy than conventional homes.
LEED Certification: The Leadership in Energy and Environmental Design (LEED) certification program, developed by the U.S. Green Building Council (USGBC), recognizes buildings that meet specific sustainability criteria, including energy efficiency. LEED certification is a widely recognized benchmark for green building practices.
Building Codes: Local and national building codes are continuously being updated to incorporate stricter energy efficiency requirements. These codes often specify minimum insulation levels, window glazing standards, and ventilation systems to reduce energy consumption.

Building Envelope

The building envelope acts as a barrier between the conditioned interior of a home and the harsh exterior environment. Its primary function is to maintain a comfortable indoor temperature while minimizing energy consumption. A well-designed and constructed building envelope is crucial for energy efficiency in new home construction.

Insulation Materials and Techniques

Insulation plays a vital role in reducing heat transfer through the building envelope. Different types of insulation materials are available, each with its unique properties and R-values. R-value represents the insulation’s resistance to heat flow. A higher R-value indicates better insulation performance.

Fiberglass Insulation: A common and cost-effective option, fiberglass insulation is available in batts, rolls, and loose-fill forms. It offers good thermal resistance and sound absorption. Its R-value typically ranges from R-2.5 to R-3.8 per inch of thickness.
Mineral Wool Insulation: Made from rock or slag wool, mineral wool insulation is fire-resistant and moisture-resistant. It offers good thermal performance and sound absorption. Its R-value typically ranges from R-2.5 to R-3.8 per inch of thickness.
Spray Foam Insulation: This type of insulation is applied as a liquid that expands and hardens, creating a continuous air-tight seal. Spray foam insulation offers excellent thermal resistance and air sealing. Its R-value typically ranges from R-3.6 to R-6.5 per inch of thickness.
Cellulose Insulation: Made from recycled paper products, cellulose insulation is a sustainable and cost-effective option. It offers good thermal resistance and sound absorption. Its R-value typically ranges from R-3.2 to R-3.7 per inch of thickness.

Air Sealing and Thermal Bridging

Air leaks can significantly impact a home’s energy efficiency. Air sealing involves identifying and sealing any gaps or cracks in the building envelope that allow air to infiltrate or escape. Thermal bridging occurs when materials with different thermal conductivities are in contact, creating a pathway for heat to flow.

Caulking and Weatherstripping: These materials are used to seal gaps around windows, doors, and other openings. Caulking is a flexible sealant applied to fill gaps, while weatherstripping is a strip of material attached to doors and windows to prevent air infiltration.
Foam Sealant: This type of sealant is commonly used for sealing larger gaps and cracks. It expands to fill the void, creating a tight seal. Foam sealant is also effective for sealing around pipes and wires.
Insulated Sheathing: This type of sheathing is designed to provide insulation and air sealing. It is typically used on exterior walls and roofs to create a continuous layer of insulation and reduce thermal bridging.

Windows and Doors

Windows and doors are crucial components of a home’s building envelope, significantly impacting energy efficiency. They act as pathways for heat transfer, allowing heat to escape in the winter and enter in the summer. Selecting energy-efficient windows and doors is essential to minimize heat loss and gain, leading to lower energy consumption and reduced heating and cooling costs.

Energy-Efficient Window and Door Selection

Choosing energy-efficient windows and doors involves considering various factors, including glazing type, frame material, and U-value.

Glazing Type: Glazing refers to the glass panes used in windows and doors. Double-pane or triple-pane windows offer superior insulation compared to single-pane windows. The air or gas trapped between the panes acts as an insulator, reducing heat transfer.
Frame Material: The frame material plays a vital role in energy efficiency. Wood, fiberglass, and vinyl are common frame materials. Wood is a natural insulator, while fiberglass and vinyl are durable and require minimal maintenance.
U-Value: The U-value measures how well a window or door resists heat transfer. A lower U-value indicates better insulation. For example, a window with a U-value of 0.25 will lose less heat than a window with a U-value of 0.50.

Low-E Coatings and Argon Gas Filling

Low-emissivity (low-E) coatings and argon gas filling are two common technologies that enhance window and door energy efficiency.

Low-E Coatings: Low-E coatings are thin, transparent layers applied to the glass surface. They reflect radiant heat back into the home during the winter and away from the home during the summer, reducing heat loss and gain.
Argon Gas Filling: Argon gas is an inert gas that is heavier than air. Filling the space between window panes with argon gas increases the insulating properties of the window, further reducing heat transfer.

Window and Door Designs for Natural Light and Heat Gain

Properly designed windows and doors can maximize natural light while minimizing heat gain.

Placement and Orientation: Strategically placing windows and doors on the south side of a home can maximize solar heat gain during the winter. Placing windows and doors on the north side of a home can minimize heat gain during the summer.
Overhangs and Shading Devices: Overhangs and shading devices, such as awnings and blinds, can block direct sunlight during the summer months, reducing heat gain.
Window Size and Shape: Larger windows can provide more natural light but may also lead to increased heat gain. Optimizing window size and shape can balance natural light with energy efficiency.

Heating, Ventilation, and Air Conditioning (HVAC)

HVAC systems are a crucial component of a home’s energy efficiency. They are responsible for maintaining comfortable indoor temperatures and air quality, but they also account for a significant portion of a home’s energy consumption. By choosing efficient HVAC systems and optimizing their performance, homeowners can significantly reduce their energy bills and environmental impact.

Types of HVAC Systems

There are various types of HVAC systems available, each with its unique advantages and disadvantages. Here are some of the most common options:

Heat Pumps: Heat pumps are versatile systems that can both heat and cool a home. They work by transferring heat from one location to another, rather than generating it. In the summer, heat pumps extract heat from inside the home and release it outdoors, while in the winter, they reverse the process, drawing heat from the outside air and transferring it inside.

Heat pumps are highly energy-efficient, especially in moderate climates.
Geothermal Systems: Geothermal heat pumps utilize the stable temperature of the earth to provide heating and cooling. They use a system of underground pipes to exchange heat with the ground, which remains relatively constant throughout the year. Geothermal systems are extremely efficient and environmentally friendly, but they require significant upfront investment.
High-Efficiency Furnaces: Traditional furnaces use fossil fuels like natural gas or propane to generate heat. High-efficiency furnaces, however, are designed to extract more heat from the fuel, resulting in lower energy consumption. They typically have an annual fuel utilization efficiency (AFUE) rating of 90% or higher, compared to older furnaces with AFUE ratings of 60% or less.

Energy Consumption and Performance Comparison

The energy consumption and performance of different HVAC systems vary significantly. Here is a comparison of some common options:

System Type	Energy Consumption	Performance
Heat Pumps	High efficiency, especially in moderate climates	Excellent heating and cooling capabilities, versatile
Geothermal Systems	Extremely energy-efficient, lowest operating costs	Excellent heating and cooling capabilities, environmentally friendly
High-Efficiency Furnaces	Lower energy consumption than traditional furnaces	Effective heating capabilities, but only for heating

Best Practices for Sizing and Installing HVAC Systems

Properly sizing and installing HVAC systems is crucial for optimal efficiency. Here are some best practices to consider:

Professional Sizing: It is essential to have a qualified HVAC technician professionally size the system for your specific home. An oversized system will cycle on and off frequently, wasting energy and reducing efficiency, while an undersized system will struggle to maintain comfortable temperatures.
Proper Installation: Proper installation is just as important as sizing. Ensure that the system is installed according to manufacturer specifications and local building codes. This includes proper ductwork sealing and insulation, which can significantly impact system performance and efficiency.
Regular Maintenance: Regular maintenance is vital for keeping your HVAC system running efficiently. This includes changing air filters regularly, cleaning coils, and inspecting the system for any leaks or malfunctions.

Water Heating

Water heating accounts for a significant portion of household energy consumption, typically ranging from 14% to 25% of total energy use. This substantial energy demand makes optimizing water heating efficiency a crucial aspect of sustainable home construction.

Types of Water Heaters

There are several water heater technologies available, each with its unique advantages and disadvantages. The most common types include:

Tank Water Heaters: These traditional water heaters store hot water in a tank, providing continuous hot water supply until the tank is emptied. They are generally less expensive to purchase but have lower energy efficiency compared to other options.
Tankless Water Heaters: Also known as on-demand water heaters, these units heat water only when needed, eliminating the need for a storage tank. Tankless water heaters are highly energy-efficient, reducing energy consumption by up to 30% compared to tank-style heaters. They are also known for their long lifespan and compact size.
Solar Water Heaters: These systems utilize solar energy to heat water, offering a sustainable and cost-effective solution. Solar water heaters can significantly reduce energy bills and carbon footprint, especially in regions with abundant sunshine. However, their initial cost may be higher than other options.
Heat Pump Water Heaters: Heat pump water heaters transfer heat from the surrounding air to heat water. They are highly energy-efficient, using up to 60% less energy than traditional electric water heaters. However, they may not be suitable for all climates, particularly in very cold regions.

Energy Efficiency and Cost-Effectiveness

The energy efficiency and cost-effectiveness of different water heater types can vary significantly based on factors such as climate, water usage patterns, and energy prices.

Tankless Water Heaters are generally the most energy-efficient option, with an energy factor (EF) typically ranging from 0.82 to 0.98. Their high efficiency translates to lower operating costs over the long term.
Heat Pump Water Heaters are also highly efficient, with an EF of 2.0 or higher. They can significantly reduce energy consumption and lower utility bills.
Solar Water Heaters offer significant energy savings, especially in sunny regions. However, their initial cost may be higher, and they may require supplemental heating during cloudy days or winter months.
Tank Water Heaters are the least energy-efficient option, with an EF typically ranging from 0.55 to 0.65. They consume more energy and have higher operating costs compared to other types.

Best Practices for Reducing Water Usage and Optimizing Water Heating Efficiency

Implementing water-saving measures and optimizing water heating efficiency can significantly reduce energy consumption and lower utility bills.

Install Low-Flow Showerheads and Faucets: Low-flow fixtures reduce water usage without compromising performance. This reduces the amount of water that needs to be heated, saving energy.
Use Water-Efficient Appliances: Choose appliances such as dishwashers and washing machines with high Energy Star ratings, which are designed to use less water and energy.
Fix Leaks Promptly: Leaky faucets and pipes waste water and energy. Repairing leaks promptly can significantly reduce water consumption and energy bills.
Install a Water Heater Blanket: Insulating the water heater tank with a blanket reduces heat loss and improves energy efficiency. This can save energy and reduce operating costs.
Lower the Water Heater Thermostat: Setting the water heater thermostat to 120°F (49°C) is generally sufficient for most household needs. Lowering the thermostat can save energy and reduce operating costs without compromising hot water availability.

Lighting

Lighting accounts for a significant portion of a home’s energy consumption, particularly in regions with long periods of darkness. It is essential to consider energy-efficient lighting solutions to minimize energy use and associated costs.

LED Lighting

LED lighting has emerged as a highly energy-efficient alternative to traditional incandescent bulbs. LEDs consume significantly less energy while providing comparable or even brighter illumination. The longevity of LEDs is another key advantage, with an average lifespan of 25,000 to 50,000 hours, significantly exceeding traditional bulbs. This extended lifespan reduces the need for frequent replacements, leading to further cost savings and reduced waste.

Best Practices for Lighting Design

Effective lighting design plays a crucial role in maximizing energy efficiency and creating a comfortable living environment. Here are some best practices to consider:

Maximizing Natural Light

Utilize large windows and skylights to maximize natural light penetration.
Optimize window placement and size to allow sunlight to reach deeper into the house.
Consider using light-colored walls and ceilings to reflect natural light, reducing the need for artificial illumination.

Appropriate Fixture Selection

Select energy-efficient light fixtures, such as LED fixtures, which consume less energy and produce brighter light.
Use dimmers to adjust light levels according to the specific needs of each room.
Opt for fixtures with built-in motion sensors or timers to automatically turn lights off when not in use.

Innovative Lighting Technologies

Smart Lighting

Smart lighting systems use sensors and automation to adjust lighting levels based on occupancy and ambient light conditions, reducing unnecessary energy consumption.

Daylight Harvesting

Daylight harvesting systems automatically adjust artificial lighting levels based on the availability of natural light, minimizing reliance on electricity.

Solar-Powered Lighting

Solar-powered lights are an excellent option for outdoor lighting, reducing reliance on grid electricity.

Appliances

Appliances are essential components of modern homes, contributing significantly to energy consumption. Understanding the energy consumption of common appliances and adopting energy-efficient practices can significantly reduce your household energy footprint and lower utility bills.

Energy Consumption of Common Appliances

Appliance energy consumption varies widely based on factors such as size, features, and usage patterns. Here’s a breakdown of the energy consumption of some common household appliances:

Refrigerators: Refrigerators are among the highest energy consumers in a home, operating 24/7. Energy-efficient models with features like automatic defrost and efficient insulation can significantly reduce energy use.
Dishwashers: Dishwashers can consume considerable energy, especially if used with inefficient settings. Energy-efficient dishwashers with features like low-temperature washing and energy-saving cycles can reduce energy consumption.
Clothes Washers and Dryers: Clothes washers and dryers are major energy consumers, especially if used frequently. Choosing energy-efficient models with features like cold-water washing and heat pump drying can significantly reduce energy use.
Ovens and Ranges: Ovens and ranges consume significant energy, particularly when using the oven for baking or broiling. Using the stovetop for cooking whenever possible and choosing energy-efficient models with features like convection cooking can reduce energy consumption.
Water Heaters: Water heaters are significant energy consumers, particularly if they are old or inefficient. Choosing an energy-efficient model, such as a tankless water heater or a heat pump water heater, can significantly reduce energy consumption.

Selection of Energy-Efficient Appliances

Selecting energy-efficient appliances is crucial for reducing household energy consumption. Consider the following factors:

Energy Star Rating: The Energy Star program is a government-backed initiative that identifies energy-efficient products. Appliances with an Energy Star rating are typically 10-30% more energy-efficient than standard models.
Efficiency Metrics: Look for appliances with high energy efficiency ratings, such as the Energy Efficiency Ratio (EER) for refrigerators and the Energy Factor (EF) for clothes washers. These metrics provide a standardized way to compare the energy efficiency of different models.
Features: Energy-efficient appliances often have features that reduce energy consumption, such as automatic defrost, low-temperature washing, and heat pump drying.

Best Practices for Efficient Appliance Use

Even with energy-efficient appliances, using them wisely can further reduce energy consumption:

Run Full Loads: Wash full loads of laundry and dishes to maximize efficiency and minimize water and energy use.
Avoid Unnecessary Energy Use: Turn off appliances when not in use, such as lights, televisions, and computers.
Proper Maintenance: Regularly clean and maintain appliances to ensure they operate efficiently.
Utilize Energy-Saving Settings: Take advantage of energy-saving settings on appliances, such as “eco” modes or “sleep” functions.

Smart Appliances for Optimized Energy Consumption

Smart appliances are increasingly popular, offering features that can optimize energy consumption:

Smart Refrigerators: Some smart refrigerators can monitor food levels and adjust cooling settings to optimize energy use. They may also offer features like remote temperature control and alerts for potential problems.
Smart Dishwashers: Smart dishwashers can adjust cycle settings based on the level of dirt and the type of dishes being washed, optimizing water and energy use. They may also offer features like remote control and automatic start/stop functions.
Smart Clothes Washers and Dryers: Smart clothes washers and dryers can monitor usage patterns and adjust settings for optimal energy efficiency. They may also offer features like remote control, automatic scheduling, and intelligent load sensing.
Smart Ovens and Ranges: Smart ovens and ranges can offer features like remote preheating, automatic cooking modes, and even the ability to monitor food temperature remotely. These features can optimize energy use and improve cooking efficiency.
Smart Water Heaters: Smart water heaters can adjust water temperature based on usage patterns and optimize energy consumption. They may also offer features like remote control and leak detection.

Renewable Energy Sources

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Renewable energy sources offer a promising path toward sustainability and energy independence in new home construction. Harnessing the power of nature, these systems can significantly reduce reliance on fossil fuels, lowering energy bills and minimizing environmental impact.

Types of Renewable Energy Systems

Renewable energy systems offer diverse options for homeowners seeking to reduce their carbon footprint and energy expenses. Each system has unique characteristics and suitability depending on factors like location, climate, and available space.

Solar Panels: Photovoltaic (PV) solar panels convert sunlight directly into electricity. Roof-mounted panels are a common installation, but ground-mounted systems are also available for larger installations. Solar panels can offset a significant portion of a home’s energy consumption, especially in sunny climates.
Wind Turbines: Wind turbines capture kinetic energy from wind and convert it into electricity. Small-scale turbines suitable for residential use are available, typically mounted on rooftops or poles.

Wind energy is most effective in areas with consistent and strong wind speeds.
Geothermal Heat Pumps: Geothermal heat pumps utilize the stable temperature of the earth to provide heating and cooling. A system of underground pipes exchanges heat with the ground, transferring it to the home in winter and removing it in summer. Geothermal systems offer high efficiency and reduced operating costs.

Integrating Renewable Energy Systems into Home Designs

Integrating renewable energy systems seamlessly into home designs is crucial for maximizing their effectiveness and aesthetics. Careful planning and consideration of factors like orientation, shading, and available space are essential.

Orientation: Solar panels should be positioned to receive maximum sunlight throughout the day. South-facing roofs in the Northern Hemisphere are generally optimal for solar energy production.
Shading: Trees, buildings, or other structures can cast shadows on solar panels, reducing their efficiency. Careful site planning and consideration of potential shading are necessary.
Available Space: The size and type of renewable energy system will determine the required space.

Wind turbines need adequate open space for optimal performance, while solar panels can be installed on rooftops or ground-mounted.

Examples of Homes with Renewable Energy Solutions

Numerous homes have successfully incorporated renewable energy solutions, demonstrating the feasibility and benefits of these systems.

Zero-Energy Homes: These homes are designed to generate as much energy as they consume annually. They typically feature solar panels, high-efficiency appliances, and advanced insulation.
Off-Grid Homes: These homes are completely independent of the electrical grid, relying solely on renewable energy sources like solar panels or wind turbines. They often incorporate battery storage to provide power during periods of low energy production.
Passive Solar Homes: These homes utilize passive solar design principles to maximize natural sunlight and heat gain during the winter, while minimizing heat gain during the summer. They often feature south-facing windows, overhangs, and strategically placed thermal mass elements.

Building Automation and Smart Home Technology

Building automation and smart home technology are increasingly being integrated into new home construction, offering significant potential to enhance energy efficiency and reduce energy consumption. These technologies use sensors, software, and automation to monitor and control various aspects of a home’s systems, enabling homeowners to optimize energy use based on real-time data and preferences.

Smart Thermostats

Smart thermostats are a key component of building automation systems, providing intelligent control over heating and cooling systems. These devices learn occupant schedules and preferences, adjusting temperatures automatically to optimize comfort while minimizing energy waste. Smart thermostats can also be programmed to adjust temperatures based on external factors such as weather conditions and time of day.

Smart thermostats can reduce energy consumption for heating and cooling by up to 15%, according to the U.S. Department of Energy.

Lighting Controls

Smart lighting controls allow homeowners to remotely manage lighting systems, providing flexibility and energy savings. These systems can be programmed to automatically adjust lighting levels based on occupancy, daylight availability, and time of day. Smart lighting controls can also be integrated with other home automation systems, such as security systems, to provide additional functionality.

Appliance Automation

Smart appliances, such as refrigerators, washing machines, and dishwashers, are equipped with sensors and software that allow for remote control and automated operation. These appliances can be programmed to operate during off-peak hours when electricity rates are lower, or to adjust their settings based on usage patterns and preferences.

Appliance automation can reduce energy consumption by up to 20%, according to the Environmental Protection Agency.

Best Practices for Integration

Integrating smart home technology into new home construction requires careful planning and consideration. Here are some best practices to ensure successful implementation:

Choose compatible systems: Ensure that all smart home devices and systems are compatible with each other to ensure seamless integration and interoperability.
Plan for future expansion: Consider future needs and plan for the potential expansion of the smart home system to accommodate additional devices and features.
Install with proper wiring: Ensure that the home’s electrical wiring is adequate to support the demands of smart home devices and systems.
Consider security and privacy: Implement strong security measures to protect the smart home system from unauthorized access and data breaches.

Smart Home Systems for Energy Management

Several smart home systems offer comprehensive energy management capabilities, providing homeowners with real-time insights into energy consumption and empowering them to make informed decisions about energy use.

Nest Learning Thermostat: This popular smart thermostat learns occupant preferences and schedules, automatically adjusting temperatures to optimize comfort and energy savings. It also provides detailed energy usage reports, allowing homeowners to track their energy consumption over time.
Amazon Alexa: Alexa is a voice-controlled smart home platform that integrates with a wide range of devices, including smart thermostats, lighting controls, and appliances. Alexa can be used to manage energy consumption, set schedules, and receive real-time energy usage updates.
Samsung SmartThings: SmartThings is a comprehensive smart home platform that allows homeowners to connect and control various devices, including lighting, thermostats, and appliances. It offers energy management features, such as automated scheduling and real-time energy consumption monitoring.

Energy Efficiency and Feng Shui

Feng Shui, an ancient Chinese practice, focuses on harmonizing energy flow (chi) within a space to create balance and well-being. Interestingly, many Feng Shui principles align with modern energy efficiency practices, creating a symbiotic relationship between these two seemingly distinct disciplines.

Feng Shui and Energy Flow

Feng Shui emphasizes the importance of natural elements and their impact on energy flow within a home. This aligns with energy efficiency principles, which aim to minimize energy waste and maximize natural resources. For instance, strategically placing windows and doors to maximize natural light and ventilation, a core principle in Feng Shui, also reduces reliance on artificial lighting and air conditioning, contributing to energy savings.

Incorporating Feng Shui into Energy-Efficient Home Designs

Optimizing Natural Light and Ventilation: Placing windows on the south side of a house, as recommended by Feng Shui, allows for maximum sunlight penetration, reducing the need for artificial lighting. Similarly, strategically positioned windows and doors can create cross-ventilation, promoting natural airflow and reducing reliance on air conditioning.
Using Natural Materials: Feng Shui encourages the use of natural materials like wood, stone, and bamboo, which are often associated with positive energy flow. These materials also have inherent thermal properties, contributing to energy efficiency by regulating indoor temperatures and reducing the need for heating and cooling systems.
Creating a Balanced and Harmonious Layout: Feng Shui principles emphasize the importance of a balanced and harmonious layout, avoiding sharp corners and cluttered spaces. This aligns with energy efficiency, as a well-organized space allows for better airflow and natural light penetration, contributing to a comfortable and energy-efficient environment.

By embracing energy-efficient practices in new home construction, you can contribute to a greener future while enjoying the benefits of lower energy bills and a more comfortable living environment. From choosing the right building materials to incorporating smart home technology, every decision you make during the construction process can impact your home’s energy performance. By investing in energy efficiency, you’re investing in a sustainable and cost-effective future for your home.

FAQ Corner

What are some common energy-efficient building materials?

Common energy-efficient building materials include high-performance insulation, low-emissivity (low-E) windows, and energy-efficient doors. These materials help to reduce heat loss in the winter and heat gain in the summer, leading to lower energy consumption.

How can I incorporate renewable energy sources into my new home?

You can incorporate renewable energy sources like solar panels, wind turbines, or geothermal heat pumps. These systems can generate clean energy to power your home, reducing your reliance on fossil fuels.

What are the benefits of using smart home technology for energy efficiency?

Smart home technology can help you automate and optimize energy usage. For example, smart thermostats can learn your heating and cooling preferences and adjust the temperature accordingly, while smart lighting can automatically turn off lights when rooms are empty.

Are there any financial incentives for building energy-efficient homes?

Many governments and utility companies offer financial incentives, such as tax credits or rebates, for homeowners who build or renovate energy-efficient homes. It’s important to check with your local authorities to see what incentives are available in your area.