Design & Engineering

Solar Systems Engineered to Perform, Comply and Last

Every good solar project starts with the right design. Our engineers turn what we find on your site into accurate plans you can build from. That covers early checks, energy forecasts, full electrical drawings, compliance with the rules and standards, and your grid application.

Why Design Matters

Good Design Is Where the Savings Are Won

A solar system is only as good as its design. How the panels are laid out, wired and connected decides how much power you make, how safely it runs and how easily it gets approved.

We design every system around your real site: the roof, any shade, how much power you use, your wiring and what your local network can take. So it performs as forecast, your DNO (the company that runs your local electricity network) is happy, and installers have clear plans to follow.

Is My Roof Suitable? →

Engineer carrying out a commercial solar site survey
300+G99 grid applications based on our own designs

Our Services

What Our Engineering Team Delivers

From early checks to drawings ready for the build, we do everything in-house.

01

Feasibility Studies

An early look at whether your roof or land is suitable, what size fits, what the grid can take and what you could save.

02

Energy & Yield Modelling

How much power you’ll make, how much you’ll use yourself and what you’ll save, based on your site and real usage.

03

Array Layouts

Panel layouts planned for the most power, safe roof access, fire safety gaps and easy maintenance.

04

Electrical Design

How the panels are wired, which inverter to use, cable sizes, and safety protection and earthing to current standards.

05

Technical Drawings

Single line diagrams (wiring overviews), layout plans and other drawings for approval and installation.

06

Funder-Ready Design Packs

Full technical packs for PPA funding (a funder pays, you buy the power), loans and investor checks.

How It Works

From Site Survey to Construction-Ready

A clear design process that cuts risk and avoids costly changes later.

1

Site Survey

We record your roof, building, electricity supply and anything that limits the site.

2

Feasibility

System size, energy forecasts and grid capacity checks.

3

Detailed Design

Layouts, electrical design and full drawings.

4

Approvals

DNO application and compliance paperwork.

5

Construction Support

Design help and support right through installation and handover.

Standards & Compliance

Designed to Recognised UK Standards

Our designs follow the rules and guidance that keep commercial solar safe and legal.

BS 7671IET Wiring Regulations
G98 / G99Grid connection requirements
CDM 2015Construction design & management
RC62Fire safety for roof-mounted solar

What’s Included

Part of Every Project, or as a Standalone Service

Design and engineering comes with every Moralis installation. You can also get it on its own if you’re an installer, developer or funder who needs expert technical help.

Book a Free Survey →

Site surveys & measurements
Shade & roof direction checks
Energy & generation forecasts
Array layout design
Panel wiring & inverter design
Cable sizing & protection
Single line diagrams
Site layout drawings
Liaising with structural engineers
Funder-ready design packs
Leeds Hotel
Designed by our team Leeds Hotel

About 600 panels on a working hotel. Our team surveyed and designed it in person, from checking the roof and planning the layout to the G99 grid application.

Read the case study →

FAQs

Design & Engineering Questions

Do you offer design services on their own?

Yes. As well as designing our own installs, we do early checks, technical drawings and design packs for installers, developers and funders.

What information do you need to start a design?

Ideally your site address, recent electricity bills or half-hourly usage data, details of your electricity supply, and any roof or building drawings you have. We’ll get the rest at the site survey.

Do you check whether my roof can take the weight?

Yes. We check the roof can take the load on every rooftop project. If a formal check is needed, we bring in a qualified structural engineer.

How do you account for fire safety?

Our layouts allow for access routes, safe gaps and where equipment goes. We follow recognised guidance on fire safety for rooftop solar.

What is a funder-ready design pack?

It’s a full set of technical information: drawings, generation forecasts, equipment details and compliance details. It’s prepared to the standard funders and investors need before they approve a project.

How accurate are your generation estimates?

We use data for your site: which way the roof faces, its angle, shading and local sunlight levels. Output changes with the weather each year, but a well-planned system should stay close to its forecast over time.

Get Started

Need a Solar Design You Can Rely On?

Whether you need a full installation or design help for your own project, talk to our engineers.