Press and Press Releases
Atargis Energy receives a Colorado OEDIT AI Grant
May 16, 2024, Atargis Energy
Atargis Energy Corporation has been awarded a $500k Early-Stage Capital and Retention grant through the Colorado Office of Economic Development and International Trade (OEDIT) Advanced Industries Accelerator program. This funding will help further the development of our transformational Cycloidal Wave Energy Converter (CycWEC).
Atargis Announces 1:15 Scale Tank Testing Campaign
April 2, 2024, Atargis Energy
Atargis is excited to announce the kickoff of our two-year wave tank testing campaign for the innovative Cycloidal Wave Energy Converter (CycWEC) at the National Research Council Canada (NRC) facility in St. John’s, NL, Canada. Over the next 24 months, a 1:15 scale protype of the CycWEC will be fabricated at the NRC facility and undergo rigorous testing to validate device performance during commissioning, operation, storm survival and decommissioning.
Atargis Welcomes Michael Egan as CEO
December 1, 2023, Atargis Energy
Atargis Energy Corporation welcomes Michael Egan as its new CEO, effective December 1, 2023. Bill Hartman, who served as CEO starting in August 2020, will retain his position on the Atargis board of directors.
Atargis Energy Joins 2nd Cohort of the Rice Alliance Clean Energy Accelerator
August 4, 2022, Atargis Energy
Supported by the major energy companies in Houston and numerous other investors, corporations and community partners, the Rice Alliance for Technology and Entrepreneurship Clean Energy Accelerator is the preeminent clean energy accelerator in the energy capital of the world! Atargis is excited to announce that we’ve been selected as part of Class 2.
Atargis Energy Announces Senior Advisory Board
July 7, 2022, Atargis Energy
Atargis Energy Corporation is honored to announce the first additions to the newly-formed advisory board. Industry leaders Michael Egan, Vice Admiral Dennis McGinn and Dr. Jeff Roberts have jouined the team. The full press release is available below.
DoE signed contract for development of the Cycloidal Wave Energy Converter
November 7, 2019, Department of Energy
This week the US Department of Energy (DoE) approved funding for a three year program to demonstrate the capabilities of the 2.5 MW Cycloidal Wave Energy Converter under development by Atargis Energy. This scalable and cost efficient wave energy converter design uses hydrofoils to convert wave energy to shaft power, which is converted to electricity by a generator and then supplied to the power grid. The work will include numerical simulations as well as large scale wave tank testing. To achieve the project goals Atargis is expanding its technical team by hiring a CFD Specialist and an Ocean Engineer.
U.S. Department of Energy Awards $25 Million for Next-Generation Marine Energy Research Projects
Atargis Energy wins DoE/EERE Research Grant
January 8, 2019, Department of Energy
The Department of Energy selected the proposal submitted by Atargis Energy in 2018 for award negotiations. This funding will allow Atargis Energy to advance the development of the Cycloidal Wave Energy Converter during the next three years. A key highlight will be 1:20 scale wave tank testing of the Atargis 2.5MW Cycloidal Wave Energy Converter.
U.S. Department of Energy Awards $25 Million for Next-Generation Marine Energy Research Projects
Benchmarking Study Passes Peer Review
November 10, 2018, Renewable Energy
The paper: "Numerical Benchmarking Study of a Cycloidal Wave Energy Converter" has been accepted for publication after passing peer review.
The abstract reads: "A lift based Cycloidal Wave Energy Converter (CycWEC) was investigated using numerical simulations to estimate its mean annual power absorption. Based on the power absorption as well as size and weight estimates a number of performance measures were derived in order to compare this novel Wave Energy Converter (WEC) to other more established devices for which results have been published by Babarit et al. using a similar benchmarking approach.
Comparison of these measures with published data for eight more established WEC designs, including heaving buoy, oscillating water column and flap devices shows that the CycWEC performance in all metrics exceeds that of all other devices. Most importantly, the energy per mass of the CycWEC exceeds that of all other devices by more than an order of magnitude, indicating the potential of the CycWEC to significantly lower the Levelized Cost of Energy (LCoE) and reducing it to a level where the CycWEC can compete with other renewable energy sources like solar and wind."
Atargis participates in NREL TPL study
May 06, 2018 NREL
Atargis submitted a detailed technical description following an invitation by the National Renewable Energy Lab (NREL) to participate in a Technology Performance Level (TPL) assessment study. The TPL measures how cost competitive a renewable energy device is relative to the cost of other renewables and non-renewables.
Benchmarking Paper Submitted for Publication
December 20, 2017 J. Energies
Atargis submitted a numerical benchmarking study for publication that demonstrates how the CycWEC can extract more power at a much lighter overall device weight. The study extends the work published by Babarit et. al in 2012, by adding the CycWEC to the conventional WEC devices benchmarked in this paper. The paper is presently under peer review for publication in the journal Energies
Development of a New 1:100 Scale Experiment
August 2016, Atargis Energy
To experimentally validate the promising simulation results with an optimized CycWEC geometry, Atargis started the process of designing and developing a new 1:100 scale wave flume model. Unlike the model used in the NSF funded work in 2009, the new model enables shaft power measurements as well as advanced sensing of the incoming waves. The model also supports testing of improved blade pitch control algorithms.
CycWEC Wave Radiation and Scatter Performance Papers Published
January 2015, Applied Ocean Research
The results from the 2012 testing campaigns sparked the development of advanced simulation codes at Atargis to investigate the effects of three dimensional wave radiation, as well as the span of the CycWEC blades. Initial results from these simulations show that the three dimensional wave radiation effects increase power capture. The advanced foil simulation results enabled optimization of the CycWEC geometry, which led to a reduced diameter as well as foil chord. Both effects together improve power production and decrease cost compared to earlier estimates. The full papers can be found in the scientific publication section of this page.
Wave Climate Scatter Performance of a Cycloidal Wave Energy Converter Wave Radiation of a Cycloidal Wave Energy Converter
US trying to produce power from ocean waves
August 06, 2012, China Daily
Although ocean wave technology still has a long way to go, US scientists are now seeking ways to make ocean wave energy the nation's newest source of green power, local media reported on Sunday.
Scientists seek next wave in power generation
August 05, 2012, Houston Chronicle
Aerospace engineers are working to make ocean wave energy the nation's newest source of green power by applying the physics of wind turbines to the sea. Former U.S. Air Force Academy scientists took over Texas A&M University's wave tank recently to test the idea that if air can produce affordable electricity, so can ocean water. For decades, researchers have sought ways to turn the energy in ocean waves into electricity - economically and with minimal impact to marine environments. But as other forms of renewable energy have flourished, commercial power from ocean waves hasn't made it onto U.S. grids.
Seeking power from the sea
August 06, 2012, San Antonio Express News
Aerospace engineers are working to make ocean wave energy the nation's newest source of green power by applying the physics of wind turbines to the sea.
Atargis Energy converts ocean wave energy to electricity
February 05, 2012, Colorado Springs Gazette
Colorado Springs may be landlocked, but a local company could hold the key to unlocking the power of the sea — if it can navigate the tricky shoals that separate research from business. Atargis Energy Corporation, named after a mythical half-man, half-fish sea god, was founded two years ago to turn president and chief technology officer Stefan Siegel’s Air Force Academy research on wave energy into a workable product.
On the crest of wave energy
November 18, 2009, NSF News
The ocean is a potentially vast source of electric power, yet as engineers test new technologies for capturing it, the devices are plagued by battering storms, limited efficiency, and the need to be tethered to the seafloor. Now, a team of aerospace engineers is applying the principles that keep airplanes aloft to create a new wave-energy system that is durable, extremely efficient, and can be placed anywhere in the ocean, regardless of depth. While still in early design stages, computer and scale-model tests of the system suggest higher efficiencies than wind turbines.
Academy awarded $285,000 for wave energy research
August 20, 2008, Air Force News
The next source of alternative energy could come from ocean waves, and Air Force Academy professors have been granted funding to dive into this research. The National Science Foundation has awarded the Academy's Aeronautics Department $285,619 to support a cycloidal propeller wave energy converter research project to harness the ocean's power. The concept of ocean waves turning power-generating turbines is simple -- put propellers underwater, then let the motion of incoming and outgoing waves, along with tidal currents turn the propellers and turbines to crank out electricity.
Scientific Publications
2022
Publications and Presentations
Efficiency analysis of the cycloidal wave energy convertor under real-time dynamic control using a 3D radiation model
Ali Mohtat, Casey Fagley, Kedar Chitale and Stefan G. Siegel
Vol. 5 No. 1 (2022): International Marine Energy Journal
Numerical Evaluation of Climate Scatter Performance of a Cycloidal Wave Energy Converter
Kedar Chitale, Casey Fagley, Ali Mohtat and Stefan G. Siegel
Vol. 5 No. 3 (2022): International Marine Energy Journal
Peer Review DE-EE0008626 Cycloidal Wave Energy Converter (Presentation)
Stefan G. Siegel
2022 Department of Energy Project Peer Review
2021
Conference Papers
Dynamic Estimation and Control of a Cycloidal Wave Energy Converter in Three-Dimensional Sea States
Casey Fagley, Ali Mohtat, Kedar Chitale & Stefan G. Siegel
14th European Wave and Tidal Energy Conference, Plymouth, UK, 2021
2019
Publications
Numerical Benchmarking Study of a Cycloidal Wave Energy Converter
Stefan G. Siegel
Renewable Energy Volume 134, April 2019, Pages 390-405
2015
Publications
Wave Radiation of a Cycloidal Wave Energy Converter
Stefan G. Siegel
Applied Ocean Research, Volume 49, January 2015, Pages 9-19
2014
Conference Presentations and Publications
Wave Climate Scatter Performance of a Cycloidal Wave Energy Converter
Stefan G. Siegel
Applied Ocean Research, Volume 48, October 2014, Pages 331-343
Analysis of a Cycloidal Wave Energy Converter using unsteady Reynolds Averaged Navier-Stokes Simulation
Christopher J. Caskey
Master Thesis, University of New Brunswick, 2014
Cycloidal Wave Energy Converter – Progress Report
Stefan G. Siegel
Oregon Wave Energy Conference, Portland, OR, 2014
2013
Reports and Publications
3D Efficiency Analysis of Cycloidal Wave Energy Converters in Oblique Wave Fields
Casey Fagley, Stefan G. Siegel, Jurgen Seidel and Christian Schmittner
32nd International Conference on Ocean, Offshore and Arctic Engineering (OMAE), 2013
2012
Conference Papers and Publications
Experimental Investigation of Irregular Wave Cancellation using a Cycloidal Wave Energy Converter
Stefan G. Siegel, Casey Fagley, Marcus Roemer and Thomas McLaughlin
31st International Conference on Ocean, Offshore and Arctic Engineering (OMAE), 2012
Computational Investigation of Irregular Wave Cancellation using a Cycloidal Wave Energy Converter
Casey Fagley, Jurgen Seidel and Stefan G. Siegel
31st International Conference on Ocean, Offshore and Arctic Engineering (OMAE), 2012
Experimental wave termination in a 2D wave tunnel using a cycloidal wave energy converter
Stefan G. Siegel, Casey Fagley and Scott Nowlin
Applied Ocean Research, Vol. 38, October 2012, pg. 92-99
Wave Cancellation Experiments using a 1:10 Scale Cycloidal Wave Energy Converter
Casey Fagley, Stefan G. Siegel and Jurgen Seidel
1st Asian Wave and Tidal Energy Conference (AWTEC) Jeju Island, Korea, 2012
Numerical Simulations of a Cycloidal Wave Energy Converter
Jurgen Seidel, Casey Fagley and Stefan G. Siegel
1st Asian Wave and Tidal Energy Conference (AWTEC) Jeju Island, Korea, 2012
2011
Conference Papers and Publications
Deep Ocean Wave Energy Conversion using a Cycloidal Turbine
Stefan G. Siegel, Tiger Jeans and Thomas McLaughlin
Applied Ocean Research, April 2011, Volume 33 Issue 2, pg. 110-119
Experimental Wave Generation And Cancellation With A Cycloidal Wave Energy Converter
Stefan G. Siegel, Marcus Roemer, John Imamura, Casey Fagley and Thomas McLaughlin
30th International Conference on Ocean, Offshore and Arctic Engineering (OMAE), 2011
Cancellation Of Non-harmonic Waves Using A Cycloidal Turbine
John Imamura, Stefan G. Siegel, Casey Fagley and Thomas McLaughlin
30th International Conference on Ocean, Offshore and Arctic Engineering (OMAE), 2011
Irregular Deep Ocean Wave Energy Conversion Using a Cycloidal Wave Energy Converter
Tiger Jeans, Casey Fagley, Stefan G. Siegel and Jurgen Seidel
Proceedings of the 9th European Wave and Tidal Energy Conference, Southampton, UK, 2011
Experimental Wave Cancellation using a Cycloidal Wave Energy Converter
Stefan G. Siegel, Casey Fagley, Marcus Roemer and Thomas McLaughlin
Proceedings of the 9th European Wave and Tidal Energy Conference, Southampton, UK, 2011
2010
Conference Papers and Publications
Intermediate Ocean Wave Termination Using a Cycloidal Wave Energy
Stefan G. Siegel, Tiger Jeans and Thomas McLaughlin
29th International Conference on Ocean, Offshore and Arctic Engineering(OMAE), OMAE 2010-20030
Wave Generation Experiments Using a Cycloidal Turbine
Stefan G. Siegel and Thomas McLaughlin
Ocean Wave Energy Conversion Using a Cycloidal Wave Energy Converter
Stefan G. Siegel and Thomas McLaughlin
4th Alternative Energy NOW Conference, Lake Buena Vista, FL, 2010
2009
Conference Papers
Deep Ocean Wave Cancellation Using a Cycloidal Turbine
Stefan G. Siegel, Tiger Jeans and Thomas McLaughlin
62nd Annual Meeting of the American Physical Society, Division of Fluid Dynamics, 2009
U.S. Patents
U. S. Patent 7,686,583
2010
Siegel, S. G. Cyclical Wave Energy Converter
U. S. Patent 7,762,776
2010
Siegel, S. G. Vortex Shedding Cyclical Propeller
U. S. Patent 8,100,650
2012
Siegel, S. G. Cyclical Wave Energy Converter
U. S. Patent 8,937,395
2015
Siegel, S. G. Ocean floor mounting of wave energy converters
U. S. Patent 9,115,687
2015
Siegel, S. G. Clustering of Cycloidal Wave Energy Converters
U. S. Patent 9,297,351
2016
Siegel, S. G. Efficient Wave Energy Conversion Using Cycloidal Turbines
U. S. Patent 11,643,172
2023
Siegel, S. G. Mooring latch for marine structures
U. S. Patent 11,719,216
2023
Siegel, S. G. Cycloidal wave energy converter using fixed differential buoyancy to control operating torques
U. S. Patent 11,851,143
2023
Siegel, S. G. Mooring structure for ocean wave energy converters
International Patents
Korean Patent 10-0898996
2009
Siegel, S. G. Cyclical Wave Energy Converter
Korean Patent 10-936076
2009
Siegel, S. G. Vortex Shedding Cyclical Propeller
Japanese Patent 5090023
2012
Siegel, S. G. Eddy Current Generating Cyclic Propeller
Japanese Patent 5150152
2012
Siegel, S. G. Cyclic Wave Energy Conversion System
World Patent Application WO 2014/026019 A2
2014
Siegel, S. G. Clustering of Cycloidal Wave Energy Converters
World Patent Application WO 2014/026027 A2
2014
Siegel, S. G. Ocean Floor Mounting of Wave Energy Converters
European Patent No. 1835173
2014
Siegel, S. G. Vortex Shedding Cyclical Propeller
Japanese Patent 5727992
2015
Siegel, S. G. Cyclic wave energy conversion system
European Patent No. EP 1878914B1
2017
Siegel, S. G. Cyclical Wave Energy Converter
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