01
Persistent energy source
Harnesses the continuous movement of naturally occurring deep-sea currents for reliable, around-the-clock power generation.
Why ocean currents
Renewable power without the gaps.
The sun sets. Wind fluctuates. Tides reverse. Deep-sea currents can provide persistent, predictable flow — day and night. DepthVolt harnesses this continuous movement to deliver reliable renewable power with significantly reduced dependence on large-scale battery storage.
Solar
Daylight only. Requires a larger solar farm plus storage for evening peak demand.
Daytime generationWind
Weather-driven. Output swings hour to hour.
VariableTidal
Predictable, but intermittent — output falls away at every slack tide.
Cyclic — typically ~4 slack periods per dayDepthVolt currents
Persistent, directional flow. Continuous 24/7 generation with minimal reliance on battery storage.
Baseload power · 24/7Technology
No blades. A far larger slice of the current.
DepthVolt does not claim to beat the power curve of a turbine. It changes the hydraulic boundary conditions the conversion mechanism sees: a large intake captures a much greater flow area, and the housing concentrates that flow before it reaches the generator.
① Current in
OPEN OCEAN · 50–150 m
0.90m/s
0.30.60.91.2 m/s
Indicative annual cluster output 3,330 MWh/yr · four turbines, ~90% availability. Proportions are illustrative.
Available kinetic power increases with the cube of current velocity. Figures are illustrative; actual output depends on site conditions, system configuration and validated resource-survey data.
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High-volume flow is concentrated through the generator, increasing usable energy density at the conversion point.
01 / Capture
A large intake area
The intake admits a far greater volume of seawater than the swept area of a comparable conventional rotor. The advantage begins here — by capturing more of the available current and directing it into a controlled flow path.
02 / Concentrate
Flow is concentrated
The housing progressively narrows the captured flow towards the conversion section, increasing flow velocity and concentrating the available hydraulic energy through a smaller cross-sectional area.
03 / Convert
Direct-drive generation
Inside a sealed HDPE housing, a cylindrical rotor with a vortex structure converts the concentrated flow into shaft rotation and drives the generator directly, with no gearbox in the drivetrain. The generated power is transmitted to shore on a shielded subsea cable.
Control
The field follows demand, not the other way round.
A closed-loop control system continuously monitors power output and onshore demand, adjusting the effective water flow through each turbine in real time. Data and control signals travel via Power Line Communication (PLC) over the existing subsea power cable — eliminating the need for a separate communications cable.
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Follows demand in real time
The controller continuously adjusts the effective water flow to match onshore power demand — generating what is needed rather than operating at full output and shedding surplus power.
Maintains nominal speed as current velocity increases
The control loop continuously monitors generator RPM and diverts part of the available flow as ocean-current velocity changes, so that only a portion of the volume flow reaches the conversion path and the generator stays within its nominal operating range. The unit keeps generating throughout. Cut-off applies only in the extreme case where the maximum available diversion has already been applied and generator speed is still above its allowable range.
Self-cleaning and predictive maintenance
The controller continuously compares the measured water-current speed with the expected generator RPM at that speed. Any shortfall may indicate debris accumulation or a partial blockage. The unit first runs its own cleaning cycle; if that does not clear the obstruction, an automatic alert recommends raising the unit for manual inspection and cleaning, reducing unplanned downtime.
Deployment
Held in the current. Raised to the surface.
DepthVolt is secured by an engineered anchoring system at the selected operating depth — typically between 50 and 150 m, depending on site conditions — with sufficient water above the unit to keep clear of marine traffic. For inspection, cleaning and maintenance, the unit can be raised to the surface — minimising the need for routine deep-water intervention.
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The DepthVolt advantage
Seven engineering advantages, stated plainly.
02
High-volume flow capture
A large intake captures a substantial volume of seawater and channels it towards the conversion section for concentrated energy conversion.
03
Bladeless turbine
There are no conventional blades and no gearbox: an enclosed cylindrical rotor drives the generator directly, reducing direct interaction between machinery and the surrounding marine environment.
04
Modular and scalable
250 kW modules combine into 1 MW clusters, enabling scalable deployment from individual units to utility-scale installations.
05
Subsea
Installed below the ocean surface, minimising land use and visual impact from shore.
06
Predictable
Deep-sea currents at properly selected sites can provide substantially more persistent generation than weather-dependent renewable sources.
07
Scalable
From distributed power for islands and remote communities to large-scale offshore generation for ports, data centres and national grids.
Scale
From one turbine to a national grid.
Each 250 kW module combines into 1 MW clusters. Clusters can be replicated across suitable ocean-current corridors, scaling generation to match the energy needs of a port, an island, a data centre or a national grid.
500MW
National baseload
A current-corridor field sized for a country's grid — the scale of the planned Congo-Brazzaville programme.
- No. of turbines
- 2,000
- Maximum annual generation
- 4.38 TWh / year
- Indicative annual generation · 90% availability
- ~3.94 TWh / year
Basis of figures
- Each DepthVolt unit has a design target operating point of 250 kW, to be validated by prototype measurement.
- Available kinetic power varies with the cube of current velocity.
- Continuous operation at rated output corresponds to a maximum annual generation of 8.76 GWh per MW.
- Applying ~90% availability for planned maintenance gives indicative annual generation of ~7.9 GWh per MW.
- Figures are illustrative. Actual site output is determined by measured current conditions, system configuration and a detailed resource survey.
Projects & markets
Four projects across three continents.
A development pipeline of about 1.9 GW across the Mediterranean, the Indian Ocean, Central Africa and South East Asia. Figures below show contracted or agreed capacity at the stage indicated, not installed capacity.
100MW
Philippines
PPA agreed1,000MW
Maldives
MOU & draft PPA300MW
Malta
Agreement signed500MW
Congo-Brazzaville
MOU signedSwipe the chart sideways →
Partnership model
No CAPEX.No OPEX.Just clean power.
We finance, build, operate and maintain the entire project. You pay only for the electricity delivered, through an agreed energy tariff under a long-term power purchase agreement (PPA).
- 01
Resource survey
We assess current velocity, water depth and seabed conditions to identify the optimal site and size the DepthVolt array to your power demand.
- 02
Local project company
A dedicated local project company is established to own and operate the project assets and enter into the PPA with the utility, government or designated offtaker.
- 03
Finance & build
DepthVolt arranges project financing and manages manufacturing, installation and grid connection — with no upfront capital investment required from the power buyer.
- 04
Operate & maintain
We operate and maintain the DepthVolt field throughout the long-term PPA — you pay only for the electricity delivered.
Who we work with
Built for energy buyers who plan in decades.
Governments & ministries
Strengthen energy security with a domestic renewable resource that operates day and night — reducing dependence on imported fuels.
- Island nations
- National grid programmes
- Coastal development zones
Utilities & IPPs
Continuous, predictable renewable generation designed to provide baseload power under a long-term PPA.
- Grid operators
- Independent power producers
- Renewable energy portfolios
Ports & industry
Power produced right next to the load, around the clock.
- Ports & terminals
- Desalination plants
- Coastal industrial sites
Marine life
Designed to disappear beneath the sea.
The conversion section is sealed inside the housing, which reduces direct interaction between the machinery and marine life. The subsea design also minimises surface presence and visual impact, and power is carried ashore on a shielded subsea cable designed to minimise electromagnetic emissions.
0
Blades
No conventional turbine blades. An enclosed cylindrical rotor with a vortex structure converts the flow directly into electricity.
Low
Low-noise operation
Continuous generation at low acoustic output.
0 kg
No fuel combustion
Zero fuel consumption and no direct greenhouse gas emissions during operation.
Contact
Let's map the current off your coast.
Tell us where you need power and how much. We'll assess the location and provide a preliminary site evaluation, proposed capacity and indicative energy tariff within two working days.
Headquarters3013 Bedok Industrial Park East
Singapore 489979
Singapore 489979
Emailinfo@depthvolt.com
Active marketsSoutheast Asia · Mediterranean · Indian Ocean · Africa · Gulf