Shipping is entering a new operational era
Regulation, fuel costs, and fleet efficiency are forcing maritime operators to rethink propulsion.
FUEL COSTS
Fuel remains one of shipping’s largest cost drivers.
IMO / CII / EEXI
New efficiency rules are reshaping vessel operation.
FuelEU MARITIME
EU routes require lower greenhouse gas intensity.
EXISTING FLEETS
Retrofit solutions are essential at global scale.
Engineered wind propulsion for real-world fleet integration
Retrofit-ready wind-assisted propulsion designed for existing commercial vessels.
RETROFIT-READY
Integrates into existing fleets.
CARGO-SPACE-PRESERVING
Designed to protect loading capacity.
ADAPTIVE DEPLOYMENT
Sails adjust to operational conditions.
INDUSTRIAL BLADE TECHNOLOGY
Based on proven wind industrial structures.
SLOW- STEAMING OPTIMIZATION
Strongest impact at lower vessel speeds.
FOR SCALABLE FLEET USE
Adaptable across vessel classes.
How the Klima-Sail system works
From concept to real-world validation
Engineering development supported by simulation, scientific collaboration, and real-world testing.
Initial vision
Development of the Klima-Sail propulsion concept.
Patent development
Protection of core system integration principles.
CFD simulations
Aerodynamic modeling and performance analysis.
Aerodynamic optimization
Continuous refinement of sail geometry and deployment behavior.
Research collaboration
Early development work with Virtual Vehicle GmbH and the Fraunhofer Institute.
REAL-WORLD TESTING
Together with research and industrial partners, the system was continuously refined through CFD analysis, aerodynamic optimization, and physical measurement campaigns.
Real-world tests conducted with BE Energy GmbH and evaluated in cooperation with University of Technology Graz provided measurable data under real environmental conditions.
COMMERCIAL PREPARATION
The development process focuses on practical maritime integration, scalable deployment, and long-term operational feasibility rather than conceptual demonstration alone.
For shipowners, operators, and shipbuilders, the focus lies on practical integration into real-world maritime operations. Klima-Sail is designed around retrofit compatibility, operational reliability, and scalable deployment pathways that align with existing fleet structures and long-term efficiency strategies.
Designed for multiple commercial vessel classes
Modular wind propulsion architecture adaptable across multiple commercial vessel classes and operational profiles.
FEEDER VESSEL · 140m
Designed for efficient retrofit integration across short- and mid-range shipping routes.
learn moreExample configuration
8 x 60m sail structures
Indicative efficiency potential
10% – 28% fuel reduction*
Favorable wind conditions
Up to 50% reduction potential
BULK CARRIER · 200m
Designed for efficient lower-speed bulk transport across long-distance routes.
learn moreExample configuration
8 x 90m sail structures
Indicative efficiency potential
8% – 21% fuel reduction*
Favorable wind conditions
Up to 35% reduction potential
.
*Indicative operational ranges based on conservative maritime operating assumptions.
LARGE CONTAINER VESSEL · 350m
Optimized for large-scale shipping corridors and slow-steaming operation.
learn moreExample configuration
10 – 12 x 120m sail structures
Indicative efficiency potential
5% – 16% fuel reduction*
Favorable wind conditions
Up to 25% reduction potential
Quantifiable operational impact
Designed for practical maritime integration, operational efficiency, and scalable deployment across commercial fleets.
ADAPTIVE VESSEL INTEGRATION
System architecture can be configured for multiple commercial vessel classes and operational profiles.
FOLDABLE SAIL STRUCTURES
Deployable sail systems can be folded to allow passage beneath existing bridge and port infrastructure.
HIGH AERODYNAMIC EFFICIENCY
Optimized sail geometry enables significantly higher wind utilization compared to conventional broad sail systems, para-sails, and Flettner rotor concepts.
INTELLIGENT SAIL CONTROL
Automated trim and deployment control supports balanced vessel behavior with minimized rudder correction requirements.
ASSISTED VESSEL STEERING
Sail pressure can be actively utilized to support directional vessel control during operation.
REDUCED PROPULSION SYSTEM LOAD
Wind-assisted operation may reduce mechanical load on engines and drivetrain components, supporting lower fuel consumption and extended maintenance intervals.
IMMEDIATE OPERATIONAL SAVINGS
Reduced fuel consumption can generate direct operational cost savings and support lower emissions-related expenditure.
SCALABLE DEPLOYMENT POTENTIAL
The modular system architecture supports gradual integration across heterogeneous commercial fleets.
Industrialized technology. Maritime-focused integration.
Developed for practical deployment pathways across commercial maritime operations.
Why KLIMA – SAIL?
Klima-Sail focuses on practical maritime implementation rather than conceptual demonstration. The development approach combines industrial engineering principles, real-world validation, and scalable deployment logic to support long-term integration into commercial shipping operations.
RETROFIT-FIRST ARCHITECTURE
Designed for integration into existing commercial fleets without requiring new vessel platforms.
INDUSTRIAL BLADE TECHNOLOGY
Based on proven large-scale wind turbine structures adapted for maritime propulsion applications.
CERTIFICATION-FOCUSED ENGINEERING
Development process aligned toward future maritime classification and operational deployment requirements.
SCALABLE DEPLOYMENT STRATEGY
System architecture supports gradual integration across different vessel classes and fleet structures.
CERTIFICATION & NEXT PHASE
Klima-Sail is currently preparing the next development phase focused on maritime classification, certification pathways, and pilot vessel integration.
The objective is to enable the transition from validated engineering development to real-world commercial maritime deployment.
The ongoing process includes collaboration with industrial partners, technical stakeholders, and future integration environments relevant to commercial shipping operations. Particular focus is placed on practical retrofit implementation, operational reliability, and scalable deployment structures for existing fleets.
PREPARING FOR MARITIME DEPLOYMENT
The development strategy is designed around long-term maritime applicability rather than isolated prototype demonstration, supporting future integration into real operational environments.
DISCUSS MARITIME INTEGRATIONKLIMA – go for it !
The next evolution of commercial shipping efficiency
Klima-Sail combines validated engineering development, industrial scalability, and practical maritime integration to support the future transition toward lower-emission commercial shipping operations.
DISCUSS INTEGRATIONNavigating the future of maritime efficiency.
