The aviation sector may be responsible for international transport and trade, but its impact on the environment cannot be understated. The aviation industry accounts for around 3% of the world’s total carbon emissions. This may not seem like much, but when compared to the world’s largest GHG-emitting countries, the aviation sector would be in the top ten of the national rankings. That is why leading airports have pledged to achieve carbon neutrality by the year 2050.
Some of the biggest and busiest airports in the world are making remarkable changes to become some of the greenest airports. These airports are electrifying ground fleets, adopting airport energy efficiency technology, implementing waste-reduction programs, and building energy-efficient airport infrastructure, which has led to huge transformations in the sector. So, what are the various ways airports are transforming to become energy-efficient?
Ways Airports are Transforming to Airport Energy Efficiency
Solar and Wind Power Adoption
According to some estimates, airports spend 10 to 15% of their budget on airport energy costs. These costs are associated with running the terminals, offices, and other facilities inside the airport. As a result, airports are actively exploring energy generation and conservation strategies.
A growing number of airports are transitioning to renewable energy sources, even if just in part. They are doing this by using their huge land expanses to put wind turbines and solar panels. Solar power offers a sustainable and environmentally friendly solution for powering the airport’s electrical needs. Cochin International Airport in India is fully powered by solar airport energy, while Denver International Airport in the United States has a 56-acre solar farm.
Green Buildings
Airports are also adopting green building strategies to reduce their environmental impact. Green buildings are designed, constructed, and operated in an eco-friendly way without sacrificing human comfort or well-being. This encourages sustainability and airport energy efficiency in all airport operations and helps build a more robust infrastructure.
An ecologically responsible airport prioritises sustainable construction materials. The use of recycled materials has less impact, which is great news for both the environment and the circular economy.
Green airport buildings seamlessly integrate various airport energy-saving technologies and installations. These encompass smart sensors, natural ventilation systems, rainwater harvesting mechanisms, and energy-efficient windows, which enhance natural lighting and decrease reliance on artificial illumination. Additionally, green roofs, capable of supporting vegetation, serve multiple purposes, such as providing insulation, managing stormwater runoff, and enhancing overall energy efficiency.
San Francisco International Airport in the United States and Vancouver International Airport in Canada exemplify airports that have achieved green building certifications. San Francisco International Airport boasts a LEED Gold terminal, while Vancouver International Airport holds a Salmon-Safe accreditation.
Integration of Energy-Efficient Lighting and HVAC Systems
A major airport can have more than 30,000 lights, most of which remain continuously throughout the day. This results in a substantial amount of energy being used for lighting at airports. As airports strive to become airport energy efficient, they are swiftly installing LED lights in various places inside and outside the airport to reduce lighting expenses.
LED lights can lower energy consumption by as much as 80% compared to incandescent bulbs. They boast an extended lifespan, making them a cost-effective lighting solution. Besides, LEDs have a wide range of color possibilities, making them perfect for identifying and directing passengers through the airport.
Airports are also increasingly using smart HVAC and lighting systems. Smart lighting enables flexible control with built-in sensors that automatically alter the light levels to suit current conditions. The same is true with smart HVAC systems; they allow exact control over the temperature and optimize airport energy efficiency. Airports can significantly lower their energy use by replacing older, inefficient appliances and equipment with newer, smarter models.
Use of Electric Airside Vehicles
Electric airside vehicles are becoming more common at airports. Airside operations have for years heavily relied on vehicles powered by internal combustion engines (ICE). Airports are now adopting electric airside vehicles, though, as part of their green initiatives. EVs emit no GHGs and produce less noise compared to ICE vehicles. This leads to a quieter and cleaner environment for the airport workers and adjacent households.
Factors Driving the Transformation for Energy Efficiency in Airports
Regulatory Requirements and Sustainability Goals
This is the main driving factor in the transformation for airport energy efficiency in airports. Governments and regulatory bodies are increasingly imposing strict environmental regulations on airports, compelling them to reduce carbon emissions, mitigate noise pollution, and prioritize sustainability. Moreover, airports are proactively setting sustainability targets to reduce their reliance on fossil fuels and achieve carbon neutrality.
Technological Advancements
Recent technology advancements are also revolutionizing airport energy efficiency strategies in airports. Airports can now use smart HVAC systems, motion sensors, LED lighting, and other technological systems to optimize energy consumption. Artificial Intelligence, the Internet of Things (IoT), and data analytics are also making it possible for airports to monitor and adjust energy usage in real time, resulting in cost savings and increased efficiency.
Economic Incentives
It is expensive for many airports to make the transition to energy efficiency. However, through government financial incentives and financial aid from other organizations, airports are able to prioritize their energy efficiency projects. The incentives and financial aids reduce the upfront costs of implementation, making sustainable practices more affordable for airports.
Airport Energy Efficiency: Conclusion
The aviation sector is changing and reaching a turning point in its quest for energy efficiency. By embracing sustainable design principles, adopting renewable energy sources, deploying cutting-edge technology systems, and fostering connectivity, airports can transform their operations while minimizing environmental impact.
