Specialist Electrical Systems Design
At CTS, we produce bespoke electrical designs for commercial and industrial businesses across the UK, covering everything from solar PV and battery storage to EV charging infrastructure, high-voltage switchgear, building automation systems, and custom industrial control panels.
Specialist Electrical System Design - Bespoke Electrical Engineering for Commercial & Industrial Businesses
Every great specialist electrical installation starts with a great design. Get that part wrong, and everything that follows is harder, more expensive, and more likely to cause problems down the line. At CTS Fire & Electrical, we design specialist electrical systems properly, around your site, your team, and your long-term plans, so that when installation day comes, everything goes the way it should.
Why Specialist Electrical System Design Matters
It’s easy to underestimate how much rides on the design stage, until something goes wrong.
A well-considered specialist electrical system design doesn’t just make the installation smoother. It shapes how safely the system operates, how efficiently it performs, how easy it is to maintain, and how well it holds up against UK regulations and compliance requirements. Skip this stage or rush it, and you pay for it later, often in ways that are far more disruptive and expensive than doing it properly in the first place.
That’s why businesses that take their electrical infrastructure seriously invest in proper design from the start. And it’s why they tend to choose a contractor like CTS, one who designs systems with real-world operation in mind, not just what looks good on a drawing.
Whether you’re planning a solar PV installation, a high-voltage power distribution network, a building automation system, or a custom industrial control panel, getting the design right is the single most important step before any work begins.
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Specialist Electrical System Design Services We Offer
We design specialist electrical systems across a broad range of technologies and sectors. Here’s what that looks like day to day.
Solar PV & Battery Storage System Design
A solar PV system that hasn’t been properly designed for your building and energy profile simply won’t perform the way it should, and you’ll feel that gap in your energy bills. We design solar and battery storage systems that are correctly sized for your consumption, properly oriented for maximum generation, and fully compliant with G98/G99 grid connection requirements. Every design includes a full energy yield assessment, so you know what to realistically expect before anything goes on the roof.
EV Charging System Design
Designing a commercial EV charging setup is more involved than most people anticipate. Load management, supply capacity, future scalability, cable routes, protection devices- get any of these wrong and you’ll either be restricting yourself from day one or facing costly remedial work later. We design EV charging systems that are practical, scalable, and genuinely built around how your site operates, whether that’s a few charge points or a large managed charging facility.
High-Voltage Switchgear & Power Distribution Design
Power distribution design for commercial and industrial sites requires careful, methodical engineering. We design custom switchgear systems, substation layouts, backup generator integration, and power distribution networks, with full fault level calculations, protection coordination, and compliance with BS 7671 baked in from the start. Nothing is assumed or left vague.
Building Automation & Control System Design
A building automation system is only ever as good as the thinking behind it. We design PLCs, building management systems, and custom control panel configurations that are logical, efficient, and genuinely easy for your team to use. We take the time to understand your processes before we design anything, so the finished system actually reflects the way you work, rather than forcing you to adapt around it.
Hazardous Area Electrical Design
Designing electrical systems for environments with flammable gases, vapours, or dusts is a completely different discipline. Zone classification, equipment selection, cable systems, earthing and bonding, every element needs careful consideration against ATEX and IECEx requirements. Our engineers are experienced in this area and produce fully documented area classification drawings and equipment schedules that support both your installation and your ongoing compliance obligations.
Custom Control Panel & Industrial Electrical Design
Off-the-shelf control panels rarely fit industrial processes the way they need to. We design custom panels and industrial electrical systems built around your specific operational requirements, complete with full schematic drawings, component specifications, and wiring diagrams produced to a standard that makes installation, fault-finding, and future modifications as straightforward as possible.
What Our Design Process Looks Like
Good design is a conversation, not a document that appears in your inbox out of nowhere. Here’s how we work through it.
Getting to Know Your Project: We start by actually listening. What does the system need to do? What are the constraints? What are your compliance obligations? What does the future look like for your site? The more we understand at this stage, the better everything that follows will be.
Site Survey & Data Gathering: Before we design anything, we come to you. We look at your existing electrical infrastructure, assess supply capacity, take in the physical environment, and gather all the technical data we need to produce a design that’s accurate and buildable - not just theoretically correct.
Concept Design & Options: We’ll put together an initial concept, sometimes with a couple of options, so you can see where we’re heading and give us feedback before we go deep into the details. This is the easiest and cheapest point to make changes, and we actively want your input at this stage.
Detailed Design & Documentation: Once the concept is agreed, we produce the full detailed design. Schematics, single-line diagrams, cable schedules, equipment specifications, protection calculations, and all the supporting documentation needed for installation and compliance sign-off. Everything is done properly.
Design Review & Handover: We walk you through the completed design so you understand what’s been specified and why - no jargon, no assumptions. You’ll receive a full design package that works for tendering, installation, future reference, and anything else you need it for.
Why Choose CTS for Your Specialist Electrical System Design?
Over 30 Years of Engineering Experience: We’ve been designing specialist electrical systems since 1992. That’s a long time, and it shows, not just in the quality of our designs, but in the way we approach problems, anticipate issues, and deliver work that holds up in the real world.
Accredited & Certified: We’re ISO 9001 certified and work to NICEIC standards, with the accreditations needed to design specialist electrical systems safely and compliantly. Our designs are thorough, fully documented, and built to withstand scrutiny from regulators, insurers, and inspectors.
Practical Design, Not Just Pretty Drawings: Our designs are produced by engineers who also install and maintain specialist electrical systems. That means every design is grounded in how these systems actually behave, buildable, maintainable, and tested against real-world experience rather than just looking good on screen.
Full Documentation as Standard: Every design we produce comes with complete supporting documentation. Schematics, schedules, calculations, compliance records - nothing left vague, nothing assumed, nothing that creates problems further down the line.
One Point of Contact Throughout: You’ll work with the same team from the first conversation to the completed design package. No handoffs, no losing context, no having to explain your project from scratch to someone new halfway through.
Integrated Thinking: Because CTS also designs and installs fire alarms, CCTV, emergency lighting, and door access control, we naturally think about your specialist electrical system in the context of your whole site. That joined-up thinking often saves time, money, and complexity, and it’s something you only get from a contractor who does everything under one roof.
Sectors We Design For
We produce specialist electrical system designs for businesses and organisations across a wide range of industries, each with its own technical demands, operational quirks, and compliance requirements.
We regularly design for commercial offices and business parks, manufacturing and industrial facilities, healthcare and medical environments, schools and educational sites, retail and hospitality businesses, warehouses and logistics operations, construction and infrastructure projects, and renewable energy installations.
Whatever your sector, we have the experience and the accreditations to produce a design that meets your needs and stands up to scrutiny.
Related Industries
At CTS Fire, we’ve been passionate about keeping businesses safe since 1992. Based in Evesham, and proudly serving the Cotswolds and surrounding areas, we specialise in designing, installing, and maintaining fire alarm systems, CCTV, emergency lighting, and more. We believe in creating systems tailored to your business, ensuring safety, compliance, and peace of mind every step of the way.
View AllLet’s Start Designing Your Specialist Electrical System
Whether you’ve got a detailed brief ready or you’re still working out exactly what you need, we’d genuinely love to hear from you. Good design starts with good listening, and that’s always where we begin.
No pressure, no jargon, no obligation. Just a straightforward conversation about your project and how we can help you get it right from the very start. Get in touch today, let’s design something built to last.
More Services
At CTS Fire, we offer a full range of services designed to safeguard your business, property, and people. Whether you’re looking for a new fire alarm system, CCTV for your premises, or emergency lighting that meets compliance regulations, we’re here to provide you with reliable, expert solutions.
Fire Alarm Installation & Maintenance
We understand how important it is to have a fire alarm system that works when you need it most. Our team not only installs fire alarms but ensures they’re regularly tested and serviced, keeping your system in top condition.
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CCTV & Security Systems
CTS Fire provides CCTV design, installation and maintenance for businesses and homes across Worcestershire, Gloucestershire and the surrounding areas. With over 30 years of industry experience, we deliver bespoke surveillance solutions that keep your property protected around the clock.
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Emergency Lighting Solutions
In case of an emergency, proper lighting can save lives. We design and install emergency lighting systems that ensure safety and compliance with current regulations.
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Fire Extinguisher Servicing & Installation
It’s not just about installing fire extinguishers – it’s about maintaining them and ensuring they’re ready to use in case of an emergency. We offer servicing, refills, and installation to ensure your workplace is fully protected.
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Specialist Electrical Systems
We deliver specialist electrical systems designed for complex environments, including installation, integration, and maintenance of high-performance, safety-critical solutions.
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Door Access Control Systems
From single-door setups to complex multi-site access door systems, our SSAIB-certified engineers deliver secure, fully integrated solutions backed by over 30 years of experience.