INNOSEA

Their core work

INNOSEA is a French marine renewable energy engineering consultancy based in Nantes, specializing in the design and technical assessment of offshore energy systems — wave, tidal, floating wind, and floating solar. They provide hydrodynamic modeling, structural load analysis, mooring system design, and LCOE (levelized cost of energy) optimization for ocean energy technologies. Their work spans the full lifecycle from concept evaluation through demonstration, helping device developers and project owners de-risk offshore energy investments.

What they specialise in

How they've shifted over time

INNOSEA's early H2020 work (2015–2018) centered on wave and tidal energy device development — evaluating breakthrough WEC concepts, tidal array demonstrations, and turbine de-risking. From 2019 onward, their focus shifted decisively toward floating offshore wind (FLOTANT, COREWIND) and cost reduction (LCOE optimization appears repeatedly), while also branching into floating solar and multi-use offshore platforms. This evolution reflects the broader ocean energy market maturing from device-level R&D toward commercial-scale deployment and cross-technology integration.

INNOSEA is moving from single-technology ocean energy consulting toward integrated offshore renewable systems, with growing emphasis on cost competitiveness (LCOE) and multi-source platforms — positioning them for the convergence of wind, wave, solar, and storage at sea.

How they like to work

INNOSEA operates exclusively as a project participant, never as coordinator — consistent with their role as a specialist engineering consultancy that contributes technical expertise rather than leading administrative efforts. With 135 unique partners across 22 countries in just 10 projects, they work in large, diverse consortia (averaging 13+ partners per project). This breadth suggests they are a trusted technical partner sought by many different consortium leaders across the European offshore energy landscape.

INNOSEA has built a remarkably wide network for an SME — 135 unique consortium partners across 22 countries through 10 projects. Their collaborative reach spans most of maritime Europe, with a natural concentration in Atlantic-facing nations active in ocean energy (France, UK, Ireland, Spain, Portugal, Norway).

What sets them apart

INNOSEA brings a rare combination: deep engineering expertise across ALL major offshore renewable technologies (wind, wave, tidal, solar) within a single SME. Most ocean energy consultancies specialize in one technology; INNOSEA's cross-technology experience makes them uniquely valuable for hybrid offshore projects and multi-source platform design. Their Nantes location places them in France's premier marine energy hub, close to test sites, shipyards, and the SEM-REV offshore testing facility.

Highlights from their portfolio

• COREWIND
  Largest single grant (EUR 459K) — focused on floating wind cost reduction through improved mooring, cables, and floater design, representing INNOSEA's strategic pivot to commercial-scale offshore wind.
• EU-SCORES
  Second-largest grant (EUR 429K) and longest timeline (2021–2027) — addresses the integration of complementary offshore renewable sources, aligning with INNOSEA's multi-technology positioning.
• LiftWEC
  Combines fundamental hydrodynamic research (lift-based wave energy) with practical LCOE and environmental impact assessment — showcasing INNOSEA's ability to bridge physics-level R&D and commercial viability analysis.