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Oscilla Power, Inc.
4240 Gilman Place, West, Seattle, Washington, United States

Memberships : NA
Industry : Renewable Energy
Basic Member
Since Jan, 2020
About Company

Oscilla Power is a privately held company, backed by investors with deep experience in the energy and financial services industries. OPI is based in Seattle, WA and has satellite offices in Edinburgh, Scotland and Kochi, India.

Oscilla Power’s Triton wave energy converter(WEC) is a two-body point absorber with four key advantages over other WECs:

Oscilla Power’s Triton wave energy converter(WEC) is a two-body point absorber with four key advantages over other WECs:

  • Triton’s optimized surface float geometry and high efficiency linear gearbox enable best-in-class energy capture. The gearbox-driven decoupling of the prime mover (surface float) and generators enable Triton’s drivetrain to convert mechanical energy into electrical energy at an average efficiency >75%.   LOW
  • Enabled by its incorporation of flexible tethers, Triton can be installed by readily available marine vessels.
  • Triton’s linear gearbox enables load shedding in high intensity operational wave states, while its survival mode configuration eliminates the need to overdesign key components to handle extreme waves.

MULTI-MODE ENERGY CAPTURE

Triton is a highly efficient multi-mode point absorber that consists of a catenary moored surface float connected to an optimally-shaped, vertically asymmetric heave plate by three taut, flexible tethers. Unlike most conventional WECs, Triton’s surface float is excited by ocean waves in multiple modes – heave, pitch, surge and roll – allowing for increased energy capture across a wide range of ocean conditions enabling a substantially lower levelized cost of electricity. Triton’s projected performance is based on extensive numerical modeling validated by tank testing at 1:50 scale. Testing of a 1:20 scale model is planned for Q3 2016.

  • Highly efficient
  • Activated by heave, pitch, surge and roll
  • Asymmetric heave plate with three tethers

HIGH EFFICIENCY ENERGY CAPTURE & CONVERSION

Triton’s drivetrain uses a variable linear hydraulic gearbox to amplify and transfer loads from the tethers to the generators. The gearbox is a high reliability hydrostatic system similar to that used in hydraulic presses. It delivers the benefits of a conventional rotary gearbox without complex moving parts. Specifically, it also allows for optimum matching of the wave-generated forces to the generator input forces, so that the generators operate at maximum efficiency while allowing the appropriate system compliance for coupling with the input wave. Every WEC has an optimal force/displacement profile for maximum mechanical energy capture and efficiency in each wave condition. Triton’s linear gearbox design allows the load amplification factor to be adjusted to optimal levels during operation based on the wave state, enabling generator displacements to be maintained at an optimum level that is largely independent of the surface float’s displacement, maximizing power transfer over a wider range of sea states than other WECs.  The linear gearbox thus makes a significant contribution to the wide power bandwidth, increased reliability, and reduced cost. It also enables various non-continuous control strategies such as latching and declutching without imposing excess loadings on the generator or marine system, which may enable the use of advanced active control algorithms to boost power in lower sea states. Optimization of the linear drivetrain, including the linear gearbox, is being funded by Wave Energy Scotland.

  • Variable linear hydraulic gearbox
  • High reliability hydrostatic system
  • Optimal force

LOW COST INSTALLATION

Triton will be towed to deployment sites with the surface float and heave plates hard-mated to each other. After mooring the surface float, the system is de-latched so that the heave plate can be lowered to the target depth using on-board winches, as shown in the figure below. The winches are employed in reverse for heave plate recovery. These self-deployment and self-recovery functions remove the need for specialized vessels or heavy lift equipment, as regular vessels are sufficient to tow the system and supply hydraulic power for winch operations. The use of a transport configuration also allows towing and installation in higher sea states, increasing the duration of acceptable weather windows and thus reducing vessel standby costs.

  • Surface float and heave plates hard-mated for towing
  • No specialized vessels or heavy lift equipment required
  • Compact design allows for transport in wide range of sea conditions
Company NameOscilla Power, Inc.
Business CategoryRenewable Energy
Address4240 Gilman Place
West, Seattle
Washington
United States
ZIP: 98199
PresidentNA
Year Established2009
EmployeesNA
MembershipsNA
Hours of OperationNA
Company Services
  • Energy Services
  • Financial Services
  • Wave Energy Converter
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