Design & Engineering
Every Eturn project begins with an engineering-first approach. We translate site constraints, energy goals, and grid requirements into a fully bankable PV design — backed by a production guarantee.
Engineering that guarantees performance
Eturn's design and engineering phase is the foundation every project is built on. We combine physical site surveys, drone-based measurements, and advanced PVsyst simulation to produce designs that reflect real-world conditions — not optimistic assumptions.
The result is a comprehensive technical package: a production prognosis, structural loading study, single-line diagram, and full implementation roadmap. This documentation is what allows us to issue a production guarantee on every project we deliver.
Every design is grounded in measured site data and calibrated simulation — not generic templates. We stand behind the numbers with a written production guarantee.
Every dimension of solar design, in-house
From initial energy modelling to permit-ready documentation — our team handles the full scope without external consultants.
Site Analysis & Surveying
Physical inspections, drone photogrammetry, and shade analysis produce a precise picture of the opportunity before a single module is specified.
PVsyst Simulation
We run full PVsyst simulations calibrated with local irradiance data and validated against historical production from comparable sites.
System Architecture
String layout, inverter selection, cable sizing, and protection design — all optimised for yield, safety, and long-term reliability.
Structural & Civil Engineering
Mounting system loads, wind calculations, and foundation design signed off by a certified structural engineer on every project.
Energy & Financial Modelling
Bankable production prognoses, self-consumption ratios, ROI timelines, and CO₂ offset calculations delivered as investor-grade reports.
Permit & Grid Documentation
Single-line diagrams, grid connection applications, and planning submissions prepared to the exact standards of each national authority.
From brief to bankable design
Our design process is structured around certainty. Every phase produces a deliverable the next phase relies on — eliminating assumptions and surprises at installation.
Energy Needs Assessment
We start by understanding where energy will be generated and how it will be used — grid injection, self-consumption, battery charging — and the financial targets driving the project.
360° Site Investigation
Physical and drone-based surveys, precision measurements, shading analysis, and grid connection point assessment build a complete site model.
System Simulation
PVsyst modelling calibrated with localised irradiance data and loss analysis. We document every assumption so the report is auditable and bankable.
Design Package
Complete technical documentation: single-line diagram, string layout, cable schedule, structural loading study, and production prognosis.
Permitting & Grid Application
All planning, environmental, and grid connection submissions handled by our permit specialists — managed across all three markets.
Why the design phase determines everything
Real data, not assumptions
Every design is grounded in measured site data and calibrated simulation — not generic templates. We stand behind the numbers with a written production guarantee.
Investor-grade documentation
Our design packages are accepted by project financiers and lenders across all three markets. The rigour of our reports is what unlocks project financing.
Design-to-build continuity
Because the same team that designs the system also procures and installs it, there are no translation errors between phases — and no handoff risk.
Production guarantee
We issue a contractual production guarantee on every Eturn project. If the system underperforms our design prognosis, we cover the difference.
Let's design your solar system
Send us your site address and energy goals — we'll respond with a preliminary feasibility assessment within three business days.