Wavegarden Energy Efficiency
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Energy Efficiency of Wave Generating Technologies Wavegarden Cove System vs. Pneumatic System

At Wavegarden, our vision is to share the exhilarating experience of surfing perfect waves with everyone, everywhere. Our goal is that every Wavegarden surf facility is delivered and operated with total respect for nature and our environment while becoming a destination for people of all ages, abilities, and backgrounds to try surfing, exercise, and be more active and healthy. 2

THE MOST ENERGY EFFICIENT SYSTEM ON THE MARKET In this document we provide a brief explanation of how our system requires approximately 10 times less energy than the pneumatic systems that are used by many other surf park companies. We have spent over 10 years in Research & Development to create by far the most energy efficient wave making system possible – this has, and continues to be, a major priority for the company. Wavegarden’s engineering designs aim to reduce the environmental impacts of excessive energy use by achieving the maximal level of energy efficiency for the Wave generator,...

After investigating all the different options, I selected Wavegarden because, besides being a Europe based enterprise, the technology is also the most energy efficient system on the market. – Adam Bonvin, founder of Alaïa Bay, Switzerland.

WAVEGARDEN SYSTEM VS. PNEUMATIC SYSTEM HOW DO THEY WORK? WAVEGARDEN COVE The paddle moves to one side creating a wave. The paddle moves to the other side creating a second wave. Blower pushes air into a chamber and the air then forces water out into the main surf pool. Water comes back again into the chamber as air is released. 5

WAVEGARDEN SYSTEM VS. PNEUMATIC SYSTEM POWER EFFICIENCY WAVEGARDEN COVE 3 key differences that have a significant impact on energy efficiency. Energy 01 Electromechanical System Wavegarden´s electromechanical system has minimal energy loss during the transmission of forces from our machinery to the water. Wavegarden´s system regenerates energy during the wave making process. As a wave is created on one side and then on the other, we use the hydrodynamic forces (as the paddle moves back) to regenerate energy during the process. Standby consumption – the energy consumption of the Wavegarden...

WAVEGARDEN SYSTEM VS. PNEUMATIC SYSTEM POWER EFFICIENCY BLOWERS 3 key differences that have a significant impact on energy efficiency. Energy 01 Pneumatic Blower System 02 High Loss of Energy 03 High Standby Consumption A pneumatic system has a significant loss of energy during the transmission of forces from the machinery to the water due to the additional component of air, a compressible gas. A pneumatic system loses additional energy at the end of the wave making process. The hot pressurized air (energy) inside the chamber is lost into the atmosphere after creating the wave. Standby...

WAVEGARDEN SYSTEM VS. PNEUMATIC SYSTEM ENERGY COMPARISON OF EXISTING SURF PARKS WAVEGARDEN COVE Just as in the ocean, surfing lagoons typically deliver waves in sets – this helps to control currents to ensure higher quality waves, as well as providing a more enjoyable user experience, as surfers have periods of rest between sets. The Wavegarden technology, and its unique lagoon bathymetry, combine to deliver the highest number of quality waves per hour of any technology in the market. • The data and analysis we present for the Wavegarden system in the following pages is based on actual...

WAVEGARDEN SYSTEM VS. PNEUMATIC SYSTEM A BASIS FOR DIRECT COMPARISON: In order to provide a like-for-like comparison between the Wavegarden Cove system and a Pneumatic system, we have assumed that a 48 chamber pneumatic system would be required (i.e. 2 x 24 chamber systems) and we have also considered the extra energy needed to extend the 10 second ride to a 13 second ride. 1 hour surf session delivering 280 x 6 feet high barreling waves with a 13 sec. ride. Given limitations of the pneumatic systems and their associated bathymetry, it is unlikely that even a 48 chamber system will be able...

WAVEGARDEN SYSTEM VS. PNEUMATIC SYSTEM POWER CONSUMPTION 280 barreling waves x 6ft high x 13 second ride WAVEGARDEN COVE A typical barrel waves surf session at the Cove has a set of 4 waves on each side of the lagoon and then there is a 60 second rest period before the next set. A typical barrel waves surf session at a pneumatic surf lagoon has a set of 3 waves at each side of the lagoon and then there would need to be a shorter rest period of c. 52 seconds in order to deliver 280 waves in an hour. Right Side Left Side seconds Stand-by Consumption Source: Real data of operating Surf Park....

WAVEGARDEN SYSTEM VS. PNEUMATIC SYSTEM POWER CONSUMPTION Analysis of number of waves per sets Wavegarden Analysis of energy consumption (kWh.) The Wavegarden Cove uses approximately 10x less energy on a like-for-like basis. *The 455 kWh includes the energy consump8on of the water treatment and other systems (ligh8ng, cooling, sensors, etc...) . Consump8on drops to 325 kWh if these are not included. 11

The Wavegarden Cove is the most sustainable surf facility in the world today Our highly energy efficient system creates many types of waves, from small beginner friendly ‘Waikiki’ waves through to vertical waves for turns and deep barreling waves for tubes. As referred to previously, the recommended number of waves per hour will vary with the size, type and quality of waves desired. For the purposes of this energy comparison analysis, we used 280 waves per hour. However, the Wavegarden system has the capability to provide up to 400 quality barreling waves per hour and up to 1000 quality...

10x less energy consumption has a significant impact not only on the environment but on the annual operational costs. In a busy surf park delivering 1-2 million waves per year, this could result in savings of between $1.3million to $2.million per year*. *based on an electricity price of $0.15 per kWh. – Josema Odriozola, founder and CEO of Wavegarden