Correct Wire Size for Solar on My Boat?

Question:

In choosing the correct wire gauge from my solar panel to the controller. Do I consider the length only one way (solar panel to controller) or include length back to solar panel (solar panel, to controller and back to solar panel)? - Chris

Answer:

Good question, when sizing a wire for voltage drop, you always want to include the return path as well. - Jeff

How Do I Reset My Bluetooth Solar Controller Without Completely Disconnecting the Controller?

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How Do I Reset My Bluetooth Solar Controller Without Completely Disconnecting the Controller?

Do I Need a Buck or a Boost Solar Controller for the Solar Panels on My Boat?

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Do I Need a Buck or a Boost Solar Controller for the Solar Panels on My Boat?

Should My Solar Controller Be Switched or Unswitched?

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Should My Solar Controller Be Switched or Unswitched?

Would You Recommend a Dual Circuit Breaker Between the Solar Panel and the Controller on My Boat?

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Would You Recommend a Dual Circuit Breaker Between the Solar Panel and the Controller on My Boat?

Choosing a Fuse and a Controller for My Boat’s Solar Panel?

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Choosing a Fuse and a Controller for My Boat’s Solar Panel?

Sizing a Solar Controller Based on Your Boat's Battery Voltage

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Sizing a Solar Controller Based on Your Boat's Battery Voltage

Victron BlueSolar MPPT 100/30 Solar Controller

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Victron BlueSolar MPPT 100/30 Solar Controller

Victron BlueSolar MPPT 75/15 Solar Controller with Bluetooth - UnBoxing and Product Review

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Victron BlueSolar MPPT 75/15 Solar Controller with Bluetooth - UnBoxing and Product Review

Where Do I Put the Solar Controller on My Boat?

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Where Do I Put the Solar Controller on My Boat?

Why you need a Controller for your Marine Solar Panel

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Why you need a Controller for your Marine Solar Panel

Genasun GV-Boost Solar MPPT Controller

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Genasun GV-Boost Solar MPPT Controller

Victron BlueSolar MPPT 75/15 Solar Controller

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Victron BlueSolar MPPT 75/15 Solar Controller

How To Choose Solar For Your Boat - FREE Guide

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How To Choose Solar For Your Boat - FREE Guide

Can I Mix Solar Panels with the Same Wattage But Different Manufacturers on My Boat?

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Can I Mix Solar Panels with the Same Wattage But Different Manufacturers on My Boat?

Can I Use Solar To Charge Three Different Battery Voltages on My Boat? 12V, 24V and 32V?

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Can I Use Solar To Charge Three Different Battery Voltages on My Boat? 12V, 24V and 32V?

My Boat Is on the Hard for Six Months, Should I Leave the Solar Panels to Charge the AGM Batteries?

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My Boat Is on the Hard for Six Months, Should I Leave the Solar Panels to Charge the AGM Batteries?

What Is the Minimum Charge Rate for Solar Panels on a 440 Ah Battery Bank?

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What Is the Minimum Charge Rate for Solar Panels on a 440 Ah Battery Bank?

Dock Talk with Jeff Cote and Nigel Calder - "All Things Solar" - Part 1 of 2

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Dock Talk with Jeff Cote and Nigel Calder - "All Things Solar" - Part 1 of 2

Boat Show 2018 - DIY Marine Solar Panel Installation

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Boat Show 2018 - DIY Marine Solar Panel Installation

I Have a Battery Isolator, Should I Connect the Solar Panels to the House or Starter?

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I Have a Battery Isolator, Should I Connect the Solar Panels to the House or Starter?