ATO Energysaving is led by Aldo van Tongeren, a specialist committed to helping public aquariums reduce energy use and operational costs, without compromising animal welfare or water quality.

With an engineering degree and more than 25 years of experience in LSS hydraulics, Aldo brings unmatched technical insight into the dynamics of water systems, filtration, and sustainable operation. His expertise allows him to identify inefficiencies quickly and transform them into measurable improvements.

Aldo’s Approach

Aldo has extensive experience working with both technical teams and management, enabling him to bridge the gap between strategy and engineering.
He believes that impactful solutions must be understood and embraced by everyone involved.

That’s why he works directly with your aquarium’s staff, ensuring that:

• all improvements are clearly explained,
• the systems’ functioning is understood at every level,
• and long-term efficiency is secured.

His style is hands-on, collaborative, and highly accessible—combined with a sincere drive for sustainability.

A Passion for Sustainability

“Getting more with less is not just a slogan to me. Energy saving genuinely matters. On average, we discover a potential of 1 million kWh in annual energy savings at each public aquarium. That translates to more than 600 tons of CO₂ reduction per site. Imagine the global impact if we optimized aquariums worldwide. I would be delighted to share my insights with you.”
— Aldo van Tongeren