Optimise Offshore Grid Connections
Automate offshore grid designs using mathematically rigorous optimisation and power-system modelling to deliver cost-optimal, defensible engineering solutions.

The Challenge
Manual grid design leaves millions on the table
Lengthy inter-array and export cables, along with multiple substation locations, make manual optimisation slow, costly and error prone
Manual grid design is costly
The offshore grid accounts for a significant share of project CAPEX, with optimisation potential that manual design consistently fails to capture.
Hundreds of kilometres of cables
A typical GW-scale project has 100–250 km of inter-array cables, with each routing decision adding cost and affecting system efficiency.
Combinatorial design complexity
Each additional turbine multiplies design possibilities. Exhaustive manual search is not feasible and can lead to suboptimal layouts.
With Rezo, there is a better way
Proven Results
Multi-million savings on large-scale offshore projects
Rezo was used to improve a major developer's competitive auction design, delivering measurable reductions across all key metrics
13km+
Cable length reduction
40M€
Lifetime cost savings
Introducing Rezo
Built for offshore electrical engineers,
by offshore electrical engineers
Rezo uses cutting-edge mathematical algorithms to help developers pinpoint the most cost-effective substation locations and design the most efficient cable systems
Substation Location
Find the best platform location with heatmaps showing cost impact. Save €5M+ compared with manual placement.
Lifecycle Cost Optimisation
Reduce CAPEX and OPEX over the project lifetime while accounting for cable supply, installation, losses and downtime costs.
Intelligent Route Finding
Plan cable routes around exclusion zones, high-cost areas and existing infrastructure using advanced pathfinding algorithms.
Cable Design & Selection
Automatically determine inter-array string count, voltage level and optimal cable cross-sections for reliable and cost-effective designs.
Sensitivity Analysis
Understand how design decisions shift under uncertain inputs such as energy price, discount rate or branching cost to make confident choices.
More capabilities
Including branched and looped topologies, a template library and curated cable database.
How it works
From data to confident design decisions
From raw project data to a defensible, cost-optimal grid design in hours — not weeks.
Upload Your Data
Bring in wind turbine layouts, site information, cable specs, and project constraints; Rezo handles all the complexity so you don’t have to.
Configure Scenarios
Define optimisation objectives, constraints, and network topologies. Use pre-built templates for speed or create custom scenarios for full control.
Run Optimisation
Let Rezo’s advanced algorithms explore thousands of design options and deliver demonstrably optimal results, balancing cost, reliability, and system efficiency.
Analyse & Iterate
Visualise results with result dashboards, maps and cost breakdowns. Adjust assumptions, test alternatives and repeat until you're confident in your design.
Enersynt is trusted by leading developers, contractors and OEMs worldwide


























Plans
Two paths to a better grid design
Rezo is available as a fully managed engineering engagement or as a self-serve web platform. Both deliver the same optimisation engine. The difference is who runs it.
Expert-Led Engineering
Our team runs the optimisation and delivers ready-to-implement designs. Ideal for single projects or competitive tenders where you need results fast.
Cloud-based optimisation platform
Direct access to Rezo's full optimisation engine. Run unlimited scenarios, collaborate across teams and build in-house capability at your own pace.
Find out what your grid connection design is really costing you
Run your project through Rezo and get a defensible, lifecycle-optimised grid design that accounts for every cost, upfront and over the lifetime of your asset.
