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Energy System Design for Solar, Battery, EV and Electrical Infrastructure Energy System Design for Premium Homes

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Electrical Design Done Right From the Start

Design-led planning works out how your solar, battery, EV charging and electrical infrastructure will actually function together before you commit to any equipment or installation contract. A premium solar, battery or EV charging system performs only as well as the design behind it - and for a project combining more than one of these, our Complete Energy Ecosystem page covers what the installed result looks like once the design is settled. We collaborate with architects, developers and homeowners to produce clear, buildable energy and electrical designs covering power distribution, lighting schemes, EV infrastructure and smart-system integration. Whether you're planning a new build, a major renovation or a complete solar and battery retrofit, our designs are produced to BS 7671 and coordinated with your wider M&E team. Done once, done right - from blueprint to completion. The next step is a design consultation to review your project and scope the drawings you actually need.

What We Offer

Electrical distribution board and circuit design drawings

Electrical Systems Design

Distribution boards, load calculations, cable sizing and circuit layouts produced to BS 7671 - sized to accommodate solar, battery and EV charging loads as well as everyday household demand. We coordinate with structural and architectural drawings to ensure everything integrates cleanly on site.

Layered LED lighting scheme in a high-end kitchen

Architectural Lighting Design

Ambient, task and accent lighting schemes planned to complement the interior architecture. We specify fittings, control systems and lux levels so the lighting brief is fully resolved before any work begins.

In-roof solar panel installation

Solar, Battery & EV Infrastructure Planning

Future-proof your project with solar-ready circuits, battery placement, EV charging cable routes and smart-home data infrastructure planned from the outset - far cheaper to design in now than retrofit later.

What the Design Stage Covers

Before any equipment is specified, we work through the same technical review on every project:

  • Property load assessment - your existing and planned electrical demand, reviewed together rather than technology by technology.
  • Consumer unit capacity - condition, spare ways and whether an upgrade is needed to support the combined load.
  • Roof orientation and shading - assessed on site wherever solar is part of the project.
  • Battery sizing - based on your actual or projected consumption pattern, not a standard household default.
  • Inverter strategy - DC or AC coupling, and platform compatibility across solar, battery and EV charging where more than one is involved.
  • EV charging behaviour - current or planned vehicles, charging routine and any load management the supply will need.
  • DNO considerations - where combined loads or export limits mean a network operator application is likely.
  • Tariff and usage modelling - so the design reflects how the property is actually likely to run the system.
  • Installation sequence and disruption - a realistic order of works, agreed before your contractor is on site.

What Affects Design Scope and Cost

The scope of a design-led assessment, and what it costs, depends on a small number of practical factors:

  • Property size - a larger property or estate generally means more circuits, more roof area, and more to coordinate.
  • Existing electrical infrastructure - an older consumer unit or supply arrangement can add survey and design time.
  • Number of technologies involved - designing solar, battery and EV charging together takes more coordination than a single system.
  • Access and survey requirements - roof access, loft space and cable routes all affect how thorough the site survey needs to be.
  • Drawings, modelling or phased planning - whether you need full technical drawings for building control and your installer, or a lighter-touch assessment to plan future phases.

We confirm the scope and cost of the design work at your initial consultation, once we understand what your project actually needs.

Why Design First Saves Money

Electrical alterations made on site during construction are one of the leading causes of project delays and cost overruns. A thorough design stage identifies clashes, resolves routing conflicts and establishes exact material schedules before labour costs are running. We produce drawings in a format your contractor, building control and network operator can all use directly.

Our designs are fully coordinated with Part P and BS 7671 requirements, so planning submission and building regulations sign-off are straightforward. We also provide specifications your installer can price accurately - no more vague scope or unexpected variations on site.

Engineer reviewing electrical design drawings before installation
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Our Design Process

1

1. Brief & Survey

We meet to understand your project goals, walk the site and review any existing drawings, architectural plans or M&E specifications.

2

2. Concept Design

We produce schematic layouts for distribution, lighting and specialist systems, coordinated with architectural drawings and presented for your review.

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3. Detail & Specification

Approved concepts are developed into full technical drawings, cable schedules and equipment specifications ready for tender or direct installation.

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4. Issue & Support

Final drawings are issued in your preferred format. We provide design support during construction to resolve any site queries quickly.

Design Questions Answered

Do I need a design stage before a solar, battery or EV installation?

Not for every project, but it is worth it wherever more than one technology is involved, or where your consumer unit and supply capacity haven't been properly assessed. For a straightforward single-technology installation, our solar, battery and EV charging teams can carry out the equivalent assessment as part of the standard installation survey.

Can design help avoid buying the wrong system?

Yes, that is the main practical benefit. Sizing a battery, solar array or EV charger against your actual consumption and supply capacity, before ordering equipment, avoids buying a system that is undersized, oversized, or incompatible with what you add later.

What information is checked before a system is specified?

Your property load, consumer unit capacity, roof orientation and shading where solar is involved, consumption pattern, EV charging behaviour, and any DNO or export considerations. We check this before recommending equipment, not after.

Is the design useful for future phases?

Yes. Where you're only installing part of a system now, for example solar without a battery, we design the consumer unit capacity and cable routes so the remaining phases can be added later without unnecessary rework.

Does design include installation?

Design and installation are separate stages, though we can carry out both. The design stage produces drawings, specifications and cable schedules; installation is priced and scheduled separately once the design is agreed.

What affects the cost of a design-led assessment?

Property size, the condition of your existing electrical infrastructure, how many technologies are involved, and how much survey and drawing work the project genuinely needs. We confirm this at your initial consultation.

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