Local renewable power worldwide

Cable Size Calculator

Solar panel size calculator

solar panel size calculator

Battery size calculator

deep cycle battery size calculator

Cable size calculator

solar cable size calculator

Power output calculator

off grid power output calculator

Calculates the minimum cable size needed for a specific length to avoid voltage losses. Enter the voltage running through the cable (V), the current running through the cable (A), the total length of cable needed (m) and also the maximum permissible percentage voltage loss (%V), typically 2.5%, then hit 'calculate'. Results are shown in mm2 cross-sectional area.

Voltage through cable (e.g. 17.5V for 1 x 100W panel):
 V
Current through cable (e.g. 5.76A for 1 x 100W panel):
 A
Total length of cable in metres:
 m
Maximum voltage loss (typically 3%):
 %
Cable size =  mm2

Leading Edge has a wide range of 12V DC solar panels suitable for 12V, 24V and 48V battery banks.  Choose from professional-grade monocrystalline glass modules with ultra-high efficiency SunPower cells for a range of industrial/commercial applications, and walkable marine solar panels from Solara.

If you include a wind turbine, you can generate even more power.  Take a look at our range of off-grid wind turbines, made here in the UK, choose one that will suit your power requirement or contact us for advice from one of our off-grid specialists.

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Off-Grid Power Requirements
Please complete this form with your specific requirements and we would be happy to put together a bespoke off-grid power system. We will recommend a solution using our own British made wind turbines, best-in-class solar panels and deep-cycle batteries.

Contact Information

Once we have assessed your requirements, our experts will call you to discuss the equipment you'll need to achieve your goals.

What Is The Application?

Please tell us as much as you can about your use case. We understand that you may not be able to answer all questions. We will call you to discuss your requirements in any case.

Device Name
Voltage
Power Draw (W)
Peak Power Draw on Startup (W)
Standby Power (W)
Hours Active Per Day (W)
Days Per Week In Use (W)

Voltage Preference

Do you have a preference for the system voltage?

Outputs Required

Do you have a preference for the systems output?

Site Location

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Other Details

No. of days autonomy required

Is there anything else we should know?

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