FISH FARMS, DUAL USE, SURVEILLANCE
Excellent for use in fish farming industry, to ensure off-grid source of electricity for surveillance cameras, telecommunications and other users of electric energy .
July 3, 2026
365 DAYS · 24 HOURS · UNLIMITED ENERGY
Power from
Sun & Sea.
Always On.
The SEAEN buoy is a hybrid energy system combining photovoltaic panels and a wave energy converter, delivering reliable electricity in any shallow-water location worldwide for off-grid or grid-connected applications.
TIME SIMULATION
16:00
0.5 kW
OUTPUT
2-10m
DEPTH
99.7 %
UPTIME
// Technical Architecture
Dual-Source Energy.
Zero Interruption.
The SEAEN system integrates two complementary energy harvesting technologies into a single autonomous unit, ensuring continuous power generation across all conditions.
Photovoltaic Crown
SOLAR ARRAY MODULE
High-efficiency monocrystalline solar panel optimized for marine environments. Its angled design maximizes solar exposure and provides reliable power generation for long-term autonomous offshore operations.
180 W Peak
22% Efficiency
Kinetic Wave Base
WAVE ENERGY CONVERTER
A precision-engineered oscillating water column captures kinetic energy from waves as small as 0.3m, converting motion to electricity through a bidirectional turbine with minimal friction loss.
300 W Peak
0.3m Min Wave
0.5 kW
Peak Output
With one generator
1.5 kW
Peak Output
Modular increase with one buoy
3 kW
Peak Output
Buoy network
2-10m
Depth Range
Shallow water optimized
15 yrs
Rated Life
Marine-grade durability
1 to 50°C
Operating Temp
Global deployment ready
// SPECIFICATIONS
Technical
Specifications
The SEAEN system integrates two complementary energy harvesting technologies into a single autonomous unit, ensuring continuous power generation across all conditions.
Structure
DIAMETER
1,6 m
HEIGHT
1,5 m
WEIGHT
Approx. 250 kg
Power
SOLAR PANELS
Angle-adjustable Victron photovoltaic solar panels
SOLAR POWER OUTPUT
Up to 180 W
ADDITIONAL POWER SOURCE
Wave energy converter
Materials
BUOY BODY MATERIAL
Extremely durable HDPE plastic as base option
ALTERNATIVE MATERIAL
Bio-composites using flax fibres
DESIGN
Capsize-free design
Equipment
BILGE PUMP
Included
INTERIOR VENTILATION
Solar-Powered
SIGNAL LAMP
Solar-Powered
// SOLUTION
Powering the
Intertidal Frontier.
SEAEN is building the world’s most advanced autonomous energy infrastructure for shallow-water environments. Our mission is to deliver clean, uninterrupted power to coastal communities, marine research stations, and offshore installations—anywhere the sun shines and the sea moves.
98,6 %
Lower consumption of natural resources than a diesel generator
6,570
Tons of CO₂ can be reduced per year
Optimized Deployment Zones
Every coastline with consistent wave activity and sunlight is a potential SEAEN deployment site—spanning tropical to temperate waters across six continents.
Key benefits
24/7 energy generation
SEAEN produces electricity day and night, all year round.
Hybrid power source
Photovoltaic panels and wave energy converters work together to ensure continuous performance.
Reliable in challenging conditions
Unlike solar-only systems, SEAEN continues operating during extended bad weather, low visibility, and winter months.
Versatile applications
Ideal for coastal communities, marine research stations, offshore installations, fish farms, defense use, coastal infrastructure, and remote housing.
Off-grid or grid-connected
SEAEN can operate independently or be integrated into the electrical grid.
Safe and resilient design
Its capsize-free construction supports reliable operation in demanding marine conditions.
Easy to deploy
Compact and lightweight, SEAEN can be installed and removed with a small boat.
Weather-ready
The buoy can be towed to safety and securely harbored when severe weather is forecast.
Simplified deployment
In most locations worldwide, SEAEN does not require special permits.
SEAEN turns the sea into a dependable source of energy — clean, resilient, and ready when you need it.
“We believe the future of distributed energy isn’t just on land — it’s in the rhythm of the tides and the path of the sun.“
— SEAEN Founding Team
// ABOUT US
A Partnership
Built to Last.
Seaen was created through a strategic partnership between Etra and Primum, combining two complementary areas of expertise into one product with strong technical and market foundations. The collaboration is built on the synergy between Etra’s industrial and engineering capabilities and Primum’s strengths in technological development, technology transfer, strategic planning, and market analysis.
Etra d.o.o.
Extensive experience in the development and production of electrical and industrial solutions, with a strong focus on quality, reliability, technical precision, and innovation.
Primum d.o.o.
Expertise in technological development, technology transfer, strategy, and market analysis, helping shape solutions that are not only technically sound, but also relevant, competitive, and ready for the market.
Together, Etra and Primum combine engineering know-how, strategic insight, and market understanding to develop Seaen as a product designed for long-term value, practical usability, and sustainable growth.
// NEWS
When Blue Energy
Shines in Silver.
The latest milestones, awards, and updates from the SEAEN project.
INTERNAUTICA INDUSTRIAL FAIR 2026
We successfully presented our SEAEN device at the Internautica 2026 exhibition in Internautica 2026, held in Portoroz Slovenia from May 21 to May 24, 2026. The device attracted significant interest
July 3, 2026
SEAEN Receives the Silver Innovation Award of the Celje Region
We are proud to announce that the SEAEN project has been awarded the Silver Innovation Award of the Celje Region, presented by the Regional Chamber of Commerce and Industry Celje.
July 3, 2026
// Project Specification
Configure Your
Deployment.
Share your project requirements and our engineering team will design a custom SEAEN deployment plan tailored to your location’s unique wave and solar profiles.
Global Coverage
Deployable across tropical, subtropical, and temperate shallow-water zones worldwide.
Scalable Arrays
From single-buoy installations to multi-unit arrays generating megawatt-scale power.
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