Briefed today, delivered by dawn.
Cable Sizing and Voltage-Drop Calculations
Every cable sized for capacity, installation method and derating — with voltage drop and losses kept within limits.
Overview
Each DC and AC cable in the system is sized for current-carrying capacity, installation method, grouping and ambient temperature, then checked for voltage drop and energy loss. The result is a cable schedule your installers can build from, with no guesswork on site.
Why it matters
Undersized cable overheats and wastes generation; oversized cable wastes money and space. Calculated sizing gives the right balance of safety, performance and cost.
What's included
- DC string and array cable sizing
- AC cable sizing to the point of connection
- Derating for grouping, temperature and installation method
- Voltage-drop and cable-loss calculations
- Cable schedule with type, size, length and route
- Containment and routing recommendations
What we need from you
- Cable route lengths or site drawings
- Installation method (clipped, conduit, tray or buried)
- Equipment locations
- Point-of-connection details
Suitable for
Standards & references
Often combined with
Solar Panel Layout and String Configuration
Optimised module layouts and string designs matched to your inverter across every temperature condition.
View serviceElectrical Design and Calculations (AC/DC)
Full DC and AC electrical design with protective devices, isolation, earthing and verified calculations.
View serviceSingle-Line Diagrams (SLDs) and Electrical Drawings
Clear, standards-compliant SLDs and schematics ready for DNOs, installers and inspectors.
View serviceGet a quote for Cable Sizing
Send us your site details and we'll confirm scope, deliverables and turnaround time within one working day.