Caudal Energy

What Caudal Energy does

Caudal Energy is a UK-based, pre-commercial tidal energy developer that builds bio-inspired oscillating hydrofoil systems for predictable, renewable baseload power from ocean currents. Founded as a spin-out from the University of Oxford and headquartered in Oxford, the company replaces traditional turbine-rotation tidal devices with a fin-based architecture inspired by the caudal fin in nature, converting energy through hydrodynamic lift and motion. The modular, surface-mounted design uses standard components and standard workboats for installation and maintenance, with electrical components kept out of the water and liftable fins, and is engineered to operate efficiently at mid-flow tidal sites of 3 knots and above — broadening the accessible UK tidal resource from 11GW to 60GW and targeting cost parity with offshore wind at scale.

The company targets three enterprise use cases via direct field sales: data centre developers seeking continuous stable power when paired with batteries, grid-restricted sites needing additional close-to-shore capacity, and off-grid coastal operators requiring baseload to complement wind and solar microgrids. The go-to-market is relationship-led enterprise engagement through the company website, LinkedIn presence of the executive team, and industry event outreach.

Caudal Energy is privately held and backed by Zero Carbon Capital, Creator Fund, Oxford Science Enterprises, and Empirical Ventures, with cumulative disclosed funding of approximately $7.4M across a 2025 seed and a 2026 round. The leadership team combines an Oxford Professor of BioMechanics as CSO, an ex-Shell renewables executive as CCO, a 20-year Formula 1 engineering veteran as VP Engineering, and an experienced growth-stage CEO. No commercial deployments, customers, or revenue have been disclosed to date.

Name

Caudal Energy

Legal name

Caudal Energy

Website

https://porpoisepower.com

Company type

Private

Founded year

2024

Operating status

Operating

Headcount range

1–10 employees

Short description

Caudal Energy is a UK-based tidal energy developer building bio-inspired oscillating hydrofoil systems that convert ocean current energy through hydrodynamic lift, targeting enterprise customers including data centre developers, grid-restricted sites, and off-grid operators.

Ownership category

akta.pro rank

Product category

Tidal Energy Systems

NAICS

Electric Power Generation (22111)

SIC

Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Tidal Stream Power Generation (In-Stream Turbines) (EUACAJAB)

Keywords

• Tidal energy systems
• Marine renewable energy
• Ocean current power
• Baseload renewable power
• Grid-scale generation

Headquarters

HQ city

Oxford

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Technology or R&D, Operations, Supply Chain, Marketing or Sales

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Caudal Energy develops and sells a fin-based tidal power generation system inspired by the caudal fin in nature, converting energy through hydrodynamic lift and motion instead of turbine rotation. The modular, surface-mounted platform operates in flow speeds of 3 knots and above and is engineered for utility-scale, baseload renewable generation. It is targeted at enterprise customers needing predictable, continuous renewable power.

Product overview

Caudal Energy offers a single core product: its fin-based tidal power generation system. This technology is inspired by the efficiency of the caudal fin in nature and is designed to unlock predictable renewable power from abundant mid-flow tidal resources. The system converts energy through hydrodynamic lift and motion rather than traditional turbine rotation, enabling operation across a wider range of tidal flows and water depths compared to conventional tidal technologies. The modular architecture uses standard components and manufacturing processes, with electrical components kept out of the water and fins that can be lifted for maintenance.

Differentiator

Problem solved

Functional benefit

Products and services

• Caudal Energy Tidal Power System

Quantifiable outcome

• Unlocks 10x as many tidal sites compared to traditional extreme high-flow systems
• +3 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Orbital Marine Power: Scottish developer of floating tidal stream turbines (the O2 platform), directly competing in UK tidal stream power generation with multi-MW operational deployments. Most direct comparable to Caudal Energy on technology category, customer base (UK utilities and grid operators), and stage of marine energy commercialisation.
• SIMEC Atlantis Energy: Developer of the MeyGen tidal stream project in Scotland and operator of tidal and other marine energy assets. Comparable to Caudal as a UK-based tidal power project developer targeting utility-scale generation, with the same regulatory and consenting environment.
• Minesto: Swedish developer of subsea tidal kite technology (Dragon Class) for predictable renewable power from tidal and ocean currents. Directly comparable as a European tidal energy developer pursuing a non-traditional architecture and targeting baseload renewable generation.
• Nova Innovation: Edinburgh-based tidal energy company operating arrays of seabed-mounted tidal turbines, including the Shetland Tidal Array. Comparable as a UK SME developing scalable tidal stream arrays for predictable renewable generation.
• Tocardo Tidal Turbines: Dutch manufacturer of tidal stream turbines for utility-scale arrays. Comparable to Caudal in the European tidal turbine supply chain and target markets (grid-connected predictable marine power).
• Verdant Power: US-based developer of tidal stream turbines (Free Flow system) targeting commercial arrays in US and Canadian waters. Comparable as a pre-commercial-to-early-commercial tidal stream developer pursuing utility offtake.

Emerging players

• CorPower Ocean: Swedish developer of wave energy converters using oscillating buoy technology — analogous architecture (oscillating hydrodynamic device) and similar commercial proposition (predictable ocean power) to Caudal's oscillating hydrofoil. Comparable on engineering approach and marine energy commercialisation stage.
• AW-Energy: Finnish developer of oscillating wave energy converter (WaveRoller) technology. Comparable on oscillating hydrodynamic architecture (akin to Caudal's fin approach) and target market of predictable ocean power.
• Sustainable Marine Energy: Canadian developer of floating tidal platform technology (PLAT-I). Comparable to Caudal on floating surface-mounted marine energy architecture and on the challenge of moving from prototype to commercial arrays.
• Magallanes Renovables: Spanish developer of the ATIR floating tidal platform targeting predictable baseload marine power. Comparable to Caudal on floating platform architecture, European geography, and target of utility-scale tidal generation.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds3 records

Investors5 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Caudal Energy