In a surprising twist, a new and innovative source of clean energy is emerging from a place most of us wouldn’t expect: the HVAC systems that are a part of our daily lives. You know those heating, ventilation, and air conditioning systems that keep our homes and workplaces comfortable? It turns out, they might soon be generating clean electricity, turning what was once seen as wasted energy into a substantial resource for power generation. This isn’t just a futuristic dream—it’s a reality in the making, thanks to a groundbreaking study conducted in Spain.
The emergence of new energy potential in Spain
Researchers at the Distance University of Madrid have explored the possibility of harnessing the artificial air currents produced by HVAC systems to generate electricity. This concept relies on the use of vertical axis turbines, which are compact and easy to install. These turbines, capable of producing around 9 kW of power, are well-suited for mounting on HVAC systems, making it possible to capture energy in a way that was previously unthinkable.
A test case in a data center in Colombia has shown promising results for this method. In that instance, a single setup of turbines could generate approximately 468 MWh annually. The specific equipment used included three Liebert HPC-M coolers, each equipped with eight fans running at 480 V and 900 rpm, generating a continuous vertical airflow essential for cooling computer systems. This setup could serve as a model for similar applications around the world.
Capturing everyday energy
The core innovation behind this project lies in the use of the Tesup V7 turbine, known for its lightweight and compact design, making it an ideal fit for existing cooling systems. By attaching six of these turbines to the cooling units with simple clips, the setup could generate a total of 513.82 MWh per year—each turbine contributing 85.64 MWh annually.
Is it cost-effective in terms of energy production?
It may sound too good to be true, but the economics behind this technology actually work out. With 336.39 MWh consumed by the cooling system fans and a net energy production of 467.6 MWh after accounting for maintenance losses, the system generates an energy surplus. This surplus could be redirected back into the power grid or used for other needs within the center, improving its energy autonomy.
And economically? Is it still too good to be true?
Surprisingly, no. This isn’t just an ecological pipe dream—the economic analysis shows that the initial cost for acquiring and installing the turbines, along with the associated equipment, would amount to €111,540, with annual maintenance costs of €1,005. Despite these costs, the investment would pay off by the third year, with an impressive internal rate of return of 50.69% over a 20-year period.
A great deal for the environment
Beyond the economic benefits, the environmental impact of installing these turbines is significant. By reducing energy consumption and generating clean power, this solution would prevent approximately 300 tons of CO2 emissions per year, contributing meaningfully to the fight against climate change and promoting a more sustainable energy future.
Spain’s innovative approach to utilizing HVAC systems for energy generation is a perfect example of how we can rethink everyday technologies to create a greener future. With significant potential for both economic gains and environmental benefits, this new energy source could be a game-changer, not just for Spain but for the world.
