Build commercial PV projects on stronger technical foundations
Solar PV design and engineering support for commercial and industrial projects, from proposal concepts to finance, PPA and preliminary engineering.
⛨ PV design support for installers, EPCs, developers, and commercial energy teams.THE PROBLEM WE SOLVE
A commercial PV design should reflect the building, the load, the grid route and the installation reality. Nortcel helps project teams reduce uncertainty before pricing, approval, finance or delivery decisions are made.
Commercial solar succeeds when design reflects the site, load and delivery reality
Weak inputs create weak proposals
If drawings, roof constraints, load data or assumptions are incomplete, proposals can become difficult to defend later.
Grid and site risks can change the project
Export limits, DNO requirements, access, structure and roof obstructions can affect capacity, cost, programme and design direction.
Commercial decisions need technical evidence
Finance, PPA and client approval discussions are stronger when design assumptions are clear, visible and technically justified.
WHAT WE DESIGN
Nortcel supports commercial and industrial PV design across rooftop, carport and ground mount environments, helping each layout reflect the site, electrical context, energy demand and project route.
Commercial & industrial PV across roof, carport & ground mount systems
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Roof mounted C&I systems
Layouts developed around roof zones, skylights, walkways, exclusions, and installation practicality.
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Pitched roof systems
Array layouts developed around pitch, orientation, roof geometry, edge zones, fixing approach, access and equipment constraints.
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Flat roof systems
East-west or south-facing layouts with spacing, shading, roof zone, ballast and mounting coordination considered where relevant.
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Ground mount systems
Concept layouts and assumptions based on boundaries, setbacks, topography and grid context.
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Solar carports
PV canopy layouts coordinated with parking geometry, access, structure, EV charging opportunities and site electrical strategy.
DESIGN SUPPORT BY PROJECT STAGE
Nortcel structures design support around the decision being made, from early proposal clarity to finance, PPA, DNO and permitting preparation.
Choose the right design stage for the decision ahead
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ESSENTIAL CONCEPT
Proposal Level
Early design clarity for client proposals and budget decisions.
Outputs
Site review
Indicative layout
Capacity estimate
Generation view
Risk notes
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ADVANCED CONCEPT
Finance and PPA
Stronger demand, export and value assumptions for commercial evaluation.
Outputs
Consumption-led sizing
Half-hourly review
PPA scenario comparison
Refined layout
Export assumptions
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PRELIMINARY ENGINEERING
DNO and Permitting
Preliminary engineering support before grid, permitting, pricing or delivery.
Outputs
SLD
Stringing approach
Inverter strategy
Mounting coordination
DNO inputs
DESIGN SERVICES
Our commercial solar design service can include
Nortcel can support a single design task or a wider design package, depending on the project stage and the information available.
Site and feasibility review
Review drawings, surveys, maps, roof or land areas, constraints, access, exclusions and available commercial information.
3D design and shading analysis
Develop 3D models, roof layouts and shading studies to improve production assumptions and stakeholder confidence.
SLD and Electrical documentation
Prepare SLDs, string layouts, inverter location notes, cable routing assumptions and electrical information for project review.
Mounting system coordination
Support mounting strategy, roof zones, ballast considerations, clamp zones and supplier information where required by project scope.
Consumption-led sizing
We use bills, half-hourly data and operating information to align PV capacity with site demand, export & commercial objectives.
System design and modelling
Define layout, module quantity, inverter approach, stringing logic, generation assumptions, losses and practical design limitations.
Battery and EV integration
Review battery, EV charging and load management opportunities where they strengthen self consumption, resilience or site value.
Grid and DNO application support
Support G98, G99, G100 and DNO related information where the project scope requires grid connection inputs.
HOW IT WORKS
A structured route from project information to design output
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Project Brief
Share site details, drawings, roof information, half-hourly data, bills, operational notes and known constraints.
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Technical Review
We review demand profile, roof environment, electrical context, grid information and available project data.
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Scope Definition
We confirm assumptions, deliverables, turnaround time and the most suitable design route.
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Design & Modelling
Our team develops layouts, yield assumptions, stringing, inverter strategy and design documentation.
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Delivery & Support
Receive structured outputs with support for revisions, queries and stakeholder review.
Have a commercial PV project ready for review?
Send us the project details, and we will help identify the right design stage and the next technical step.
STANDARDS & COMPLIANCES
Our design process considers the relevant electrical, grid, installation, building and construction safety requirements for the scope of each project.
Designed with UK requirements in mind
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Small scale PV installation standards and documentation expectations considered where applicable
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UK wiring regulation requirements considered as part of the electrical design approach.
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Generation connection and export limitation requirements considered according to project scale and network context.
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Local network conditions, export limits and project-specific connection requirements considered during design.
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Structural, fire, electrical and material considerations reviewed where relevant.
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Design risk, access, construction safety and maintenance considerations included where relevant.
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Applicable product, electrical and performance standards considered for project-specific requirements.
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Equipment-specific installation, design and warranty requirements reviewed during specification.
THE NORTCEL ADVANTAGE
Why commercial PV teams work with Nortcel
Nortcel gives project teams access to specialist solar design and engineering support without building every capability in house.
Specialist C&I PV focus
Work with designers familiar with commercial roof, carport, ground mount, grid, electrical and stakeholder requirements.
Lower design overhead
Avoid recruitment, salaries, training, software licences and hardware costs for fluctuating design workloads.
Flexible capacity
Scale design support up or down as proposal, tender, survey or delivery demand changes.
Faster project movement
Dedicated external capacity helps keep projects progressing when internal teams are already committed.
Structured quality control
Design outputs are reviewed for accuracy, assumptions, practical constraints and documentation quality.
Commercially useful outputs
Documentation supports sales, finance, DNO, permitting, PPA, and stakeholder review.
CLIENT PROOF
Trusted design support for commercial PV teams
3100+
designs completed
690+
MW designed
18+
long term partnerships
Frequently asked questions
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We design solar PV systems for warehouses, factories, offices, retail sites, industrial units and complex multi building locations.
This service is suited to EPCs, installers, developers, consultants and asset owners who need accurate, practical and commercially useful designs. We can support early proposal work, sales stage layouts, PPA level designs, investor level design packs and more detailed design development as the project progresses.
Whether you need support on 1 project or ongoing design capacity across a wider pipeline, Nortcel can work as part of your team and adapt to your workflow.
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Yes. We regularly support EPCs, installers and developers who need reliable design capacity without expanding their internal team.
We can support your existing designers, cover overflow work, replace an internal design function, or become your external design partner as your workload grows. Over time, we learn your standards, preferred formats, commercial priorities and approval process, which makes collaboration faster and smoother.
This is especially valuable for companies managing multiple opportunities where speed, accuracy and consistency all matter.
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Yes. This is a key part of our commercial and industrial design support.
We can prepare design outputs suitable for proposals, client presentations, PPA discussions, early investment review and internal decision making. These designs help communicate system potential, expected performance, usable roof or land area, key assumptions and technical direction.
At this stage, the goal is to give stakeholders enough confidence to move the project forward while keeping assumptions realistic and clearly stated.
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Turnaround depends on site complexity, input quality and the level of detail required.
A straightforward proposal level design can often be completed quickly when the required information is available. More complex sites, multiple buildings, detailed yield modelling, PPA support or investor level outputs may require more time.
We manage work through a structured project system where tasks, progress, priorities and missing information can be tracked clearly. This keeps communication efficient and helps projects move forward without unnecessary delays.
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We treat design as an engineering process, not just a visual layout exercise.
Each project is reviewed for practical constraints, buildability, performance assumptions, equipment strategy and the level of detail required for its purpose. A proposal level design does not need the same detail as a construction ready package, but it still needs to be accurate enough to support good decisions.
Our aim is to reduce risk, avoid misleading assumptions and provide outputs that help clients sell, approve, finance or deliver projects with greater confidence.
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The ideal information includes the site address, roof plans or drawings, electricity consumption data, available site photos, known constraints, preferred equipment, required system objective and any client specific requirements.
For proposal, PPA or investor level work, it is also useful to know the commercial purpose of the design. For example, whether the output is being used for a client proposal, internal approval, funding review, PPA modelling or early feasibility.
If the information is incomplete, we can still help you define what is missing and guide the next steps.
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Pricing is based on project size, complexity, urgency, level of detail and required outputs.
A simple proposal level layout will be priced differently from a detailed investor level pack or design requiring multiple scenarios, revisions and performance analysis. We price around the technical care, responsiveness and level of support required for each project.
For long term partners, we can create a more predictable pricing structure that supports repeat work, fast turnaround and consistent quality.
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Yes. Revisions and optimisation are a normal part of the design process.
We can revise layouts, adjust system size, compare design options, refine yield assumptions, review equipment choices and respond to stakeholder feedback. This is especially useful during proposal, PPA and investor review stages, where assumptions often develop as the project becomes clearer.
Our role is not only to produce a design, but to help the project reach a stronger technical and commercial position.
Ready to Move
Your Project Forward?
Share your project details and speak directly with a solar design engineer. We will review your requirements, clarify the scope and guide you towards the right design solution for your site.