For many people, the local outdoor pool is the epitome of quality of life in the summer. But behind the scenes of these idyllic sunbathing areas, cities and municipalities are grappling with harsh economic realities. Due to their immense energy requirements, outdoor pools are often a chronic money-losing venture for municipal budgets. Read our virtual use case “The Energy-Self-Sufficient Outdoor Pool” below as a forward-looking vision of how outdoor pools can be operated in an economically viable and climate-neutral manner through decentralized infrastructure.
Michelstadt, June 17, 2026
From a Money-Losing Venture to a Self-Sustaining Recreational Oasis
Huge pump and filter systems consume electricity around the clock, the food service area requires constant refrigeration, and the pool water must be continuously heated—even in summer—to provide guests with an enjoyable experience. This presents many municipalities with the challenge of operating an outdoor pool profitably without raising prices to unaffordable levels.
The concept of the self-sufficient outdoor pool involves directly integrating patented large-scale technology for emission-free energy conversion into the pool’s infrastructure. Instead of drawing expensive electricity and heat from the public grid, the outdoor pool generates its own energy on-site using a modularly scaled ENERGY TOWER.
The physical principle inside the tower—based on buoyancy, gravity, and circulation mechanics—delivers up to 8,000 full-load hours per year. An invaluable advantage for pool operations: the pump systems run self-sufficiently and at no additional cost.
Free Up Budgets for the Diving Tower Instead of Money for the Electricity Bill
“An outdoor pool is a social gathering place that shouldn’t fall victim to budget cuts just because energy prices are unpredictable,” explains Stephan Ballweg, CEO of ENERGY TOWERS. This use case proves that climate protection and municipal cost-effectiveness can go hand in hand. When the technology drastically reduces ongoing energy costs, a subsidized operation becomes a self-sustaining system. The money saved stays in the community and can be directly invested in other important upgrades—whether that’s new slides, renovating the restrooms, or enhancing the appeal of the entire facility.
Back to the Roots of Innovation
The “Outdoor Pool” use case also holds special emotional significance for the company. It brings us full circle: More than ten years ago, the founder and current CTO, Zeki Akbayir, came up with the fundamental idea of harnessing buoyancy right there—while observing the physical forces at work in the water of a swimming pool.
The vision of an energy-self-sufficient outdoor pool demonstrates how innovative physics can tangibly enrich people’s daily lives and secure municipal living spaces for the future.
About ENERGY TOWERS
ENERGY TOWERS is the solution to the energy crisis: sustainable, independent and future-proof. The revolutionary technology enables environmentally friendly power generation directly on site – efficient, modular and independent of fossil fuels, wind or weather. ENERGY TOWERS utilise natural physical processes to convert renewable energy in a weather-independent and resource-saving manner.
The goal: to make clean electricity accessible to all and to create a world in which affordable renewable energy is the norm. With an interdisciplinary team of engineers, scientists and entrepreneurs, ENERGY TOWERS is driving the future of green power generation – for a sustainable and secure power supply worldwide.
More information at energytowers.de/en
