Bespoke Energy Solutions Designed, specified and optimised by our in-house engineering team

Power Systems Built
Around Your Application

Bespoke power systems for any application
Designed around your space, load and environment
From DIY builds to large commercial projects
Victron and Pytes systems specified by UK experts

Discuss A Bespoke Solution See What We Can Build
From DIY projects to large scale commercial systems, our team can help specify the right route.
UK Victron distributor
Access to proven hardware and practical product knowledge.
Official UK Pytes distributor
Battery storage expertise backed by UK stock and support.
In-house engineering
Design, specification and optimisation for unusual requirements.
Not covered by a standard application?

Tell us what you need the system to do. We can design around it.

Whether the challenge is available space, weight, site conditions, runtime, battery capacity, compliance or integration with existing equipment, our engineering team can help turn the requirement into a practical power solution.

Start a bespoke enquiry View capabilities
Why Callidus?

Bespoke power systems with engineering behind the recommendation.

Callidus Trade Ltd supplies and specifies Victron and Pytes based systems for customers who need more than an off-the-shelf product page.

1

Design and specification

We help define the inverter, battery, solar, charging, monitoring and protection hardware needed for the application.

2

Built around constraints

Systems can be designed around size, weight, runtime, environmental conditions, site access and regulatory requirements.

3

From DIY to commercial

We support hands-on customers, installers, businesses and larger commercial projects that need a properly specified solution.

4

Optimised before supply

Our team can help with system optimisation, compatibility and next steps before equipment is supplied or installed.

Examples Of The Type Of Work We Can Support

How bespoke projects work

From unusual requirement to buildable system.

Share the application and constraints. We will help shape the specification and recommend a route that fits the project.

Step 1

Tell us the application

  1. Explain what you need to power and for how long.
  2. Share the site, environment and installation constraints.
  3. Include existing equipment, drawings or photos if available.
Send your brief →
Step 2

We shape the solution

  1. Our team reviews capacity, inverter, battery and charging requirements.
  2. We consider compatibility, protection, monitoring and installation route.
  3. You get clear next steps for supply, build or installation support.
Discuss the project →
What can we build?

If it needs reliable power, storage or charging, ask us.

These are examples, not limits. The point of a bespoke solution is that the system is designed around the real-world requirement.

Homes and estates

Solar battery storage, backup power, energy management and expansion of existing systems.

Remote buildings

Cabins, workshops, farms, outbuildings, telecoms and sites without a simple grid connection.

Mobile and marine

Boats, vans, specialist vehicles and compact systems where weight and space matter.

Commercial projects

Three-phase, larger capacity and project-specific systems for business and site requirements.

Backup and resilience

Systems designed to keep critical loads running where continuity matters.

Pre-built assemblies

Boards, cabinets and integrated equipment packages to simplify installation.

Harsh environments

Solutions specified around heat, cold, moisture, vibration, access and enclosure requirements.

Unusual briefs

Projects that do not fit the website categories, standard kits or typical product filters.

Questions before you enquire?

Bespoke solution FAQs

Do you only build the applications shown on the website?

No. The applications shown online are examples and common routes. If your project is different, our in-house engineering team can review the requirement and help specify a suitable solution.

Can you help if I do not know the exact components I need?

Yes. Tell us what the system needs to achieve, what it must power, the available space, site conditions and any constraints. We can help with the design and specification route.

Can you support both small and large projects?

Yes. We can support everything from DIY and small specialist projects through to larger commercial systems.

Can you design around weight, space or environmental restrictions?

Yes. Bespoke systems can be specified around size, weight, enclosure, runtime, charging method, environmental and regulatory constraints.

Can you supply only, or do you install?

Depending on the project, we can discuss supply only, pre-built assemblies, installation support or a route involving qualified installers.

Need something the website does not list?

Send us the requirement and our team will help identify the right Victron, Pytes and supporting hardware route for your application.

Start a bespoke enquiry Review capabilities

Tell Us About Your Bespoke Power Project

Share the application, what you need to power, expected runtime, space or weight limits, site conditions, existing equipment and whether you need supply only, installation support or a complete project route.

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