Planai Bets on Water Security as Austria’s Largest New Snowmaking Reservoir Comes Online

In the escalating battle to guarantee reliable ski seasons in a warming climate, one of Austria's best-known mountain destinations has made a major statement.

The official opening of the expanded Speicherteich Bruckmoos reservoir on Planai in Schladming marks one of the most significant snowmaking infrastructure projects undertaken by an Austrian ski area in recent years. The reservoir's capacity has increased from roughly 80,000 cubic metres to 200,000 cubic metres, making it the largest storage reservoir of its kind in the Austrian state of Styria.

For the operators of the Planai-Hochwurzen-Bahnen, the project is about far more than building a larger lake on a mountain. It is an investment in winter certainty.

Adapting to a New Climate Reality

Across the Alps, ski operators increasingly face a common challenge: winters are becoming less predictable, while the cold periods needed for efficient snow production are often shorter and more intense.

According to Planai-Hochwurzen-Bahnen, autumn and winter months have become noticeably drier in recent years, while the availability of suitably cold temperatures for snowmaking has become more limited. The expanded storage reservoir is designed to allow operators to capture water when it is available and deploy it rapidly when conditions are optimal for snow production.

"The ability to produce snow quickly during short cold spells has become crucial," explained Peter Weichbold, managing director of Planai-Hochwurzen-Bahnen, when the project was announced. The expansion provides additional capacity to maintain reliable piste conditions while safeguarding the economic foundations of the ski area and the wider region.

A Strategic Infrastructure Investment

Construction began immediately after the conclusion of the 2025-26 winter season and required the movement of approximately 120,000 cubic metres of excavated material. Much of that material was reused on-site for the new dam structure and piste improvements, reducing transport requirements and supporting a more resource-efficient construction process.

The enlarged reservoir now stores enough water to significantly strengthen snowmaking operations across the Schladming ski mountains.

According to regional reports, when combined with three smaller storage reservoirs, the expanded system provides sufficient water resources to establish a base layer of snow across the ski area within approximately 72 hours under favourable snowmaking conditions, utilising up to 500 snowmaking units.

That capability is increasingly valuable in modern ski operations, where a handful of cold nights can determine whether resorts are fully prepared for a holiday period.

More Than a Technical Project

The inauguration ceremony on 30 September brought together regional politicians, tourism representatives and project personnel, including project manager Reinfried Prugger. The reservoir was formally blessed by local clergy and celebrated by around 40 employees directly involved in the development.

The opening also highlighted the broader economic importance of winter tourism in the Schladming region.

According to figures reported at the inauguration, Planai-Hochwurzen-Bahnen generated more than €42 million in revenue during the 2025-26 winter season, while exceeding one million skier visits for the fourth consecutive year.

Those numbers underline why ski area operators continue investing heavily in snowmaking despite growing public debate over climate adaptation and resource management.

Water, Snow and Sustainability

The expansion is likely to reignite discussions around the role of artificial snow production in the Alps.

Industry representatives stress that the water used for snowmaking is not consumed permanently. Water collected from natural inflows and the River Enns is stored, transformed into snow during winter and returned to the natural hydrological cycle through snowmelt in spring.

Critics of large-scale snowmaking projects often point to energy consumption and environmental impacts, while operators argue that modern, targeted snow production allows ski areas to use resources more efficiently than in the past.

What is clear is that storage capacity is becoming increasingly important. With river levels and natural inflows more variable during dry periods, mountain reservoirs provide flexibility that many resorts now consider essential.

The Future of Snowmaking

The Bruckmoos project reflects a wider trend visible across the Alps. Rather than expanding piste networks, many ski operators are investing in infrastructure designed to secure existing operations against weather volatility.

New reservoirs, upgraded pumping systems, automated snowmaking technology and energy-efficient equipment are rapidly becoming as important to ski area competitiveness as new lifts and gondolas.

For Planai, the message is unambiguous: future success depends not only on snowfall from the sky, but increasingly on strategic water management on the mountain.

The opening of the expanded reservoir therefore represents more than an engineering achievement. It is a symbol of how Alpine ski destinations are adapting to a future in which resilience, efficiency and snow security may prove just as important as terrain and vertical drop.