Designing Safe, Reliable Systems Before Installation Begins
Tiny Build Electrics provides professional off-grid electrical system design services for campervans, motorhomes, off-grid cabins, tiny homes, and remote buildings.
Our system design service focuses on planning, calculating, and specifying an electrical system that is safe, compliant, and correctly sized before any installation work begins.
Electrical system design is not about drawings; it’s about ensuring the right components, capacities, and architecture are chosen from the outset, reducing risk, cost, and uncertainty later in the build.
About Our System Design Service
For Your Van or Cabin Installation
System Design Consultation Details
What You Get:
- One-hour Zoom consultation with our Founder, Tom.
- Bespoke off-grid electrical system design review based on your project
- Detailed system specification and quotation within 48 hours (batteries, solar, charging, inverters)
Benefits:
- Tailored off-grid electrical system design for your build
- Reduced risk through safety-led, BS7671-informed system planning
- Clear, practical path to reliable off-grid power
Price:
£95 – Deducted if you purchase from us.
Choose Us
Why Choose Tiny Build Electrics
Expertise:
1,000+ bespoke systems designed.
Compliance:
BS7671 compliant solutions.
Trust:
4,000+ client projects completed.
Book In Today
Getting started is simple. Fill out and complete the booking form below to choose a date and time. On the day, we’ll connect via Zoom for a bespoke power audit, discuss your off-grid system needs, and explore installation options if required. Your detailed quotation arrives within 48 hours, ready to power you off-grid.
Testimonials
What Our Clients Say About Us
400000+
Electrical Parts Supplied
2000+
Wiring Diagrams Drawn
1500+
Systems Designed
FAQ
Frequently Asked Questions
What is off-grid electrical system design?
Off-grid electrical system design is the process of planning and specifying an electrical system before installation begins. It focuses on power requirements, system architecture, component selection, and safety considerations to ensure the system is correctly sized, reliable, and suitable for long-term off-grid use. Then, we can ship you your system components if you decide to purchase them from Tiny Build Electric.
How is electrical system design different from wiring diagrams?
Electrical system design defines what the system needs to do and which components are required, such as batteries, inverters, charging sources, and system voltage. Wiring diagrams show how those components are physically connected during installation. Wiring diagrams are offered as a separate service and are not included in system design unless specifically requested.
What types of projects do you design electrical systems for?
We design off-grid electrical systems for a wide range of projects, including campervans, motorhomes, off-grid cabins, tiny homes, retreats, and fixed off-grid buildings. The design process is the same regardless of build type and is tailored to how the system will actually be used.
What’s included in an electrical system design consultation?
The design consultation includes a power audit, how you intend to use the system, and your power requirements. From this, we produce a bespoke off-grid electrical system specification, including system sizing, component recommendations, and guidance for the next stage of your build.
Is electrical system design available remotely?
Yes. Electrical system design is delivered remotely, typically via a Zoom consultation, making it suitable for projects anywhere in the world. Design documentation and recommendations are provided digitally following the consultation.
Why is professional system design important for off-grid electrics?
Off-grid electrical systems often involve high currents, battery storage, and multiple charging sources. Professional system design helps prevent undersized systems, unsafe layouts, poor component selection, and costly redesigns, all while improving safety, reliability, and long-term performance.
Are system designs created with safety and compliance in mind?
Yes. All off-grid electrical system designs are developed with electrical safety and best practice as the priority, following relevant elements of BS7671 where applicable. Designing systems correctly from the outset significantly reduces safety risks during installation and use.
Can system design be used for DIY or professional installations?
Yes. Electrical system designs can be used by DIY builders or professional installers. The design provides a clear specification and system overview, allowing installation to proceed with confidence regardless of who carries out the work.
Do I need system design if I’m planning an installation with Tiny Build Electrics?
In most cases, yes. System design ensures the electrical system is correctly specified before installation begins. This helps streamline installation, reduce changes mid-build, and ensure the finished system performs as intended.
How much does electrical system design cost?
Electrical system design, no matter how complex the project, is £95. If you proceed with parts or installation through Tiny Build Electrics, the consultation fee is deducted.
Can system design lead into wiring diagrams or installation?
Yes. Many projects begin with system design and later progress to wiring diagrams, parts supply, or installation, but each service is offered separately. This allows you to engage only with the level of support you need at each stage.
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