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Solar Design

Commercial Concepts

Feasibility, yield modelling and concept design for C&I rooftop, carport and ground-mount projects.

Commercial Concepts — representative deliverable
Overview

Commercial Concepts

Commercial solar decisions are made on a spreadsheet, but the numbers in that spreadsheet come from a design. If the concept overstates usable roof area or understates the electrical infrastructure work, the whole business case is wrong and nobody finds out until detailed design.

Our concept packages are built to be trusted at investment committee. Usable area is derived from real constraints — plant, skylights, safety zones, expansion joints, structural capacity where known — and the yield model is run on site-specific weather data with realistic loss assumptions. Where the roof cannot take the array, we say so at concept rather than at week ten.

We also produce the multi-option comparisons that these decisions actually need: rooftop against carport, self-consumption against export, staged build against single phase, each with its own capacity, yield and indicative cost envelope.

What you receive

Every item below is issued in your own template, with your layer conventions, title block and revision scheme.

  • Constraint plan showing usable area, plant, access and exclusion zones
  • Two to four capacity options with layout, module count and DC / AC capacity
  • Yield model per option with monthly production and performance ratio
  • Self-consumption and export analysis against supplied load data
  • Indicative single-line concept and point-of-connection assessment
  • Structural feasibility commentary and flag list for detailed design
  • Shading study including adjacent structures and seasonal effects
  • Concept report and comparison summary suitable for board presentation
  • Aerial visualisation of the preferred option

Production detail

Typical turnaround5–10 working days depending on option count
Scale of projects100 kWp to 20 MWp
Yield basisPVsyst or Helioscope on TMY / Meteonorm / PVGIS data
Load analysis inputHalf-hourly or monthly consumption data
Output formatsPDF report, DWG layouts, XLSX yield and option summary
RevisionsTwo rounds included per option

Software and formats

We work in your toolchain. If something you use is not listed, ask — the list below is only what we use most.

PVsystHelioscopeAurora SolarPV*SOLAutoCADSketchUpExcel financial models

Frequently asked

Yes, and half-hourly data gives a far better answer than monthly totals. We model generation against the load profile to show self-consumption ratio, export volume and the capacity at which additional modules stop earning their keep.

At concept stage we produce a feasibility commentary based on the structural information available and flag what needs verification. A definitive capacity assessment requires a structural engineer with access to the original design or a site inspection, and we will tell you when that is the critical path item.

Yes. Carport layouts including bay coordination and canopy spans, and ground-mount including row spacing for the site latitude, terrain following, access tracks and setback constraints.

That is the intent, and it is why we prefer to do both. Concept assumptions are documented explicitly so the detailed design phase starts from a stated basis rather than a reconstruction of someone's thinking.
Permit Packages As-Built Drawings
Step 3 of 4 in Solar Design

Send one commercial concepts job and see how we work

Scope, price and programme come back in writing before anything starts. Most first projects are a single deliverable so you can judge us on output, not on a pitch.

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