Maximising HVAC efficiency: strategies for reducing costs and environmental impact
Introduction: A Brief History of HVAC systems
The comfort of our homes and workplaces depends on modern Heating, Ventilation and Air Conditioning systems that provide heating, cooling and air quality management. But these systems are not exactly new. From the ingenuity of the Romans with their hypocaust systems for heating public baths to Willis Haviland Carrier's pioneering invention of humidity control in 1902, the history of HVAC is one of great engineering in the service of quality of life. Now, with the integration of renewable energy sources, the evolution of HVAC technology heralds a future where climate control systems not only optimise human comfort, but also prioritise environmental protection.
EQUANS, a leading provider of HVAC solutions, is at the forefront of the next phase of development, transforming technical installations into a lever for economic and climate performance. The company's innovative approach to HVAC solutions is changing the way we think indoor spaces, from tertiary to industrial buildings, providing a blueprint for the future of sustainable and efficient design.
Integrating Renewable Energy to Heating and Cooling Systems
With heating and cooling accounting for around half of the EU's energy consumption[1], it has never been more important to enhance the efficiency of these systems. Technological progress has led to solutions such as heat pumps, heat recovery ventilation systems and energy efficient air conditioning systems. These innovations, especially when combined with renewable energy sources, represent a major step forward in our approach to indoor climate management. This shift marks a significant advancement that reflects the transformative impact of Carrier's invention and paves the way for the next generation of HVAC systems.
Benefits of Energy-Optimised HVAC Systems
Modern HVAC systems increasingly use renewable energy sources such as solar and geothermal. This shift not only helps reduce dependence on fossil fuels, but also minimises energy costs over time.
But beyond simple cost savings, the use of energy-optimised HVAC systems helps protect the environment and improve indoor air quality, while providing a comfortable and healthy environment for occupants. With the added benefits of compliance, adaptability and technology integration, energy-optimised HVAC systems are a smart investment for the future.
- Lower costs: Energy-optimised HVAC systems use advanced technologies for efficient heating, cooling and ventilation, reducing energy bills and maintenance costs.
- Environmental protection: By using less energy, these HVAC systems play a crucial role in reducing greenhouse gas emissions and dependence on fossil fuels. In addition, many energy-optimised HVAC systems use refrigerants that have a lower environmental impact.
- Improved air quality: Advanced filtration and ventilation systems improve indoor air quality, reducing health problems and increasing occupant comfort.
- Increased property value: Energy efficiency attracts buyers/tenants and increases the attractiveness and value of a property.
- Compliance and incentives: Complies with energy efficiency regulations and offers financial incentives for installation.
- Adaptability and scalability: Design adapts to changing space use without compromising efficiency.
- Technology integration: Connects to BMS and IoT for real-time monitoring, predictive maintenance and energy optimisation.
Taking Building Maintenance to New Heights
The complexity of coordinating incredibly diverse requirements, not only in terms of functionality but also sustainability and energy efficiency, highlights the need for a multi-skilled approach. EQUANS, a pioneer in this field, is redefining what it means to maintain a building. We also ensure that it is not only comfortable and efficient, but also sustainable, performant and promotes the well-being of its occupants.
Our expertise is based on a deep understanding of the regulatory and financial environment, the proximity and responsiveness of our teams, and a wide range of technical skills developed over more than a decade. EQUANS engineers and multi-technical maintenance teams advise on energy efficiency and decarbonisation strategies. They carry out studies and designs to improve energy performance and create savings plans in line with tertiary green energy requirements.
Thanks to our extensive network of local offices and on-site operational expertise, we act as an end-to-end partner. From the initial design phase through to maintenance, our services cover the installation, renovation, monitoring and management of HVAC systems that ensure optimal indoor climates in a variety of environments including industrial and commercial buildings, shopping centres, airports and cultural facilities.
EQUANS’ Multi-Technical Services at Work
In our project to modernise the production of Belgian bakery group La Lorraine with multi-technical equipment at their new plant in Erpe-Mere, we combined tradition and innovation, focusing on the installation of advanced piping, HVAC and electrical systems to increase the efficiency and sustainability of bakery production.
Our air quality solutions include an advanced HVAC system with 21 air handling units, 3 boilers and 31 air heaters. This system ensures optimal indoor climate and air quality through motorised air displacement grilles that dynamically adjust to the specific heating or cooling needs of different areas, maintaining comfort and efficiency throughout the production hall and setting new standards for industrial expansion.
A Holistic Approach to HVAC Maintenance
From qualified fitters and electricians to refrigeration specialists and plumbers, EQUANS’ extensive technical expertise forms the backbone of our operations. This internalisation of key skills ensures optimal operational management, cost control, competitiveness and technical excellence; guaranteeing efficiency in maintenance projects through increased flexibility and responsiveness.
Siemens Gamesa's offshore wind turbine factory in Le Havre, France, which manufactures all the main components of an offshore wind turbine on a single site, has benefited from these comprehensive services, including electrical installations, fire protection, gas and water supply, HVAC and building management systems (BMS). This is an example of our commitment to helping our customers achieve a carbon-neutral transition by developing energy infrastructures that are both less energy intensive and safer.
Environmental Commitment and Certification
Our specialised expertise extends to providing audits, customised solutions and strategies for industries to comply with increasingly stringent energy and safety regulations and avoid potential breaches. It also includes support for autonomous production to reduce cost volatility and the digitalisation of production processes for preventive and predictive maintenance to ensure service continuity.
Through dynamic thermal simulations, EQUANS validates the solutions and energy strategies we offer our customers and supports them through rigorous certification processes. These include HQE (High Quality Environment) certification, the Bepos label and building certifications such as BBC, Breeam and Leed.
EQUANS Comprehensive HVAC and Air Treatment Solutions
From office buildings to the most sensitive industrial sites, including chemical, pharmaceutical, data centres, road tunnels, maritime, nuclear and aerospace, EQUANS delivers bespoke HVAC solutions that meet the wide range of requirements of modern infrastructure:
- Advanced heating, ventilation, air conditioning and cooling systems.
- Sophisticated air treatment and filtration technologies suitable for clean rooms, laboratories and more.
- Innovative heat recovery systems and air and fume extraction solutions.
- Efficient water and superheated steam management, chilled water generation and distribution systems.
- Hygienic installations, including solar boilers and water recovery systems, as well as district heating networks, combined heat and power and thermal energy storage solutions such as CHS and BTES.
Tailored Scalable Solutions
EQUANS' customer base spans all sectors, from healthcare facilities and public spaces to heavy industry giants. By understanding our customers' processes, EQUANS delivers tailored support and turnkey services that not only meet but exceed expectations in terms of size and requirements.
Turnkey Modular Solution for Semiconductor Chips
In an effort to revolutionise the electric vehicle market with silicon carbide chips, a leading semiconductor innovator has begun construction of a $1 billion chip manufacturing facility in Marcy, NY. EQUANS, through Systecon, provided a turnkey modular utility solution that utilised advanced cooling technology and modular construction to meet ambitious production time and budget targets.
This approach significantly accelerated the process by using prefabricated key components, including a sophisticated cooling water pump system made from durable stainless steel. This not only saved valuable time, but also provided a bespoke solution to the specific requirements of the project that could be seamlessly integrated into the operation of the facility.
Through our subsidiary Axima Marine, EQUANS offers comprehensive support for the entire lifecycle of HVAC systems on ships. Our solutions include cleaning and sanitising ventilation systems, designing HVAC rooms for new anti-virus equipment, improving ventilation and adapting automation for anti-virus protection. This approach ensures that the air is 100% virus-free, increasing safety and comfort for passengers and crew, while meeting the specific requirements of the marine industry for cruise ships and naval vessels.
Hot… and Cold: Innovative Cooling Systems
EQUANS develops customised refrigeration solutions that not only ensure the optimal preservation of products at plus and minus temperatures, but also improve the energy balance. Drawing on decades of experience, EQUANS uses cutting-edge digital and AI-based maintenance strategies. They include predictive maintenance using advanced algorithms and sensors to anticipate and resolve potential problems, significantly reducing maintenance costs.
Our cooling solutions range from ultra-low temperature refrigeration and freezing to bespoke cascade cooling systems designed to meet the specific needs of a wide spectrum of industries, including food, petrochemical, retail, biotechnology, pharmaceutical, logistics, defence and marine.
Our commitment to improving our customers' energy performance and operational safety includes the use of environmentally friendly and natural refrigerants that meet stringent environmental standards and regulations. This commitment is further cemented through Energy Performance Contracts: we agree on a level of quality with our customers and introduce a bonus-malus system based on results, providing a financial guarantee of performance.
In 2022, EQUANS significantly improved the sustainability and efficiency of the ANZ Viaduct Events Centre by upgrading its aging seawater cooling system. The project was completed in just 4 months and included the installation of advanced cooling and noise reduction technology. The upgrade, which was completed quickly and to strict safety standards, not only improved operational efficiency, but also reduced maintenance costs and noise pollution with minimal disruption to operations.
Safety First Strategy
EQUANS' ability to tailor our projects to specific environments - whether for research and development or industrial applications - demonstrates our unwavering commitment to the use of best practice and cutting-edge technology to meet stringent quality and safety standards. This approach ensures the elimination of contamination risks in critical environments such as clean rooms, which are essential in the medical, pharmaceutical, biotechnology, food and microelectronics industries.
Our project with Northvolt in Skelleftea, Sweden, involved the design and construction of 48,000m2 of cleanrooms for their electric battery 'gigafactories'. They are critical for maintaining the low humidity levels essential for the safety and efficiency of battery production.
For STMicroelectronics, EQUANS installed the HVAC and process fluid networks for the R3 plant in Milan, Italy. The project was completed by Omega Concept Impianti e Sistemi and Axima Concept France in a record time of 12 months, despite challenges such as the sanitary crisis and material shortages.
Harnessing the Power of Smart Buildings
Smart buildings epitomise the integration of numerous digital functions to improve various aspects of building operation, from energy efficiency and air quality to thermal comfort and security. EQUANS plays a crucial role as a solution integrator with an overarching intelligence of smart building technologies. This honed expertise enables us to offer comprehensive services in the areas of electrical and HVAC engineering, building security, IT, telecommunications and digital solutions for data collection and processing. These capabilities enable the optimisation of building components and ensure spatial flexibility and usability.
EQUANS Digital: A Network of Energy Efficient Expertise
At the heart of EQUANS' approach to smart buildings is EQUANS Digital, which embodies the company's commitment to using digital technologies to improve energy and operational efficiency. With 6,000 professionals in 17 countries, supported by one of the largest in-house HVAC design offices in Europe, our teams are equipped to take on the most challenging projects. They integrate the latest innovations in project management, such as computerised maintenance management systems (CMMS), cybersecurity, workplace management and building information modelling (BIM), advanced data analytics, AI and IoT-connected sensors to ensure predictive maintenance, optimal cost and schedule control.
This network not only facilitates the optimisation of building operations through the Building Operating System (BOS) approach, but also helps to achieve energy and environmental efficiency targets.
Positive Energy Buildings and Smart Cities
The concept of energy positive buildings - buildings that produce more energy than they consume - relies heavily on efficient HVAC solutions. These buildings are an integral part of the development of smart cities, where energy management is optimised through intelligent systems and technologies.
The Bottom Line: Energy-Efficient HVAC in Action
This journey from ancient innovations to modern advances underscores the central role that industrial heating and cooling systems play in shaping the way we live and work. Modern HVAC technologies offer a path to greater energy efficiency, reduced environmental impact and significant cost savings. Through strategic installations and the integration of renewable energy sources, we can significantly advance our sustainability goals while promoting healthier and more comfortable living and working environments. EQUANS' commitment to energy savings goes beyond operational tasks. It is a promise to partners, businesses and public institutions to maintain the highest standards in the actions we implement to reduce their energy consumption and minimise their environmental impact
