SolarDesignTools provides free interactive online design tools for Electric Solar Power energy systems. This includes determining the required number of solar panels, how many batteries will be needed, calculating wire sizes, a solar radiation chart, example system pictorials, and more.
Try this example of an interactive electric Solar Power Simulator to see how Solar Energy systems work.

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Wiring Diagrams

System Wiring Examples*
* While these examples are representative of typical solar power energy systems, it must be understood that any solar power application will also require conservation. Electric stoves, hot water heaters and any electricity guzzlers should be converted to natural gas, propane or other systems. Using electricity to produce heat is almost a short circuit and is extremely inefficient.

The diagram at the right is an example of a fairly small system suitable for a cabin or small remote building. It uses four 150 watt solar panels and in full sunshine would produce about 600 watts. The back-up generator is wired to the Inverter and will produce power and charge the batteries under poor sunshine conditions or at night if necessary. The battery bank is 1000 AmpHour capacity and could supply power for several days.

This is an example of a medium solar power system and would be adequate for a small home with 1 or 2 people. It uses eight 150 watt solar panels and is twice as large as the previous example and generates 1200 watts under full sun. With a 2000 AmpHour battery bank, more energy is available when the solar panels are not generating power during low sunshine conditions or at night.

At 2400 watts, this solar power system is very robust and could supply power for a typical family of 4. It uses sixteen 150 watt solar panels and would generate 2.4 KiloWatts under full sun each hour. This larger solar power system requires 2 charge controllers and 2 DC to AC Inverters. The 4000 AmpHour battery bank supplies plenty of power under poor weather conditions or at night.

* While these examples are representative of typical solar power energy systems, it must be understood that any solar power application will also require conservation. Electric stoves, hot water heaters and any electricity guzzlers should be converted to natural gas, propane or other systems. Using electricity to produce heat is almost a short circuit and is extremely inefficient.

Home / Overview Starting Guide System Sizing Tool Battery Designer Wire Size Calculator Tips & Strategies Terms & Definitions
Solar Panels Charge Controllers Storage Batteries Inverters/Generators Meters & Monitoring Solar Radiation Wiring Diagrams

DISCLAIMER : The information and suggestions on this website are generally proven and accepted standards and techniques. They are, however, not meant to supersede local zoning laws or the recommendations of a licensed electrician. Always read the instructions provided with your equipment and observe all safety precautions.