Free Sun Power shining on Solar panels generates free energy by converting sunlight to electricity with no moving parts, zero emissions, and no maintenance Free tutorials, interactive online Design Tools and a Solar Power Simulator at FreeSunPower.com



Run your own Solar Energy System! 5 Meters display charging, power, voltage, & more. Watch the power change as you turn appliances on/off.

Details of the Solar Energy System used in this small, energy efficient, earth sheltered home.

Home Page
System Simulation
About Solar Power
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Easy 5 Step Guide
Example Systems
Solar Energy Home
Solar Projects
  Solar Combiner Box
  Mini Junction Box
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Basic Tutorials :
  Overview
  Solar Panels
  Charge Controllers
  Power Inverters
  Storage Batteries
  AC Generators
  Wires & Cables
  Meters & Monitors
Advanced Info :
  Watts & Power
  Solar Radiation
  Battery Wiring Diagrams
Design Tools :
  System Sizing Estimator
  Battery Bank Designer
  Wire Size Calculator
Nasa Animations
Solar Domain Names
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Site Map

Quick and easy projects for your Solar Energy System that will save you money!
Solar Domain Names for websites For Sale
Design Tools for Solar Energy Systems
System Sizing Estimator : Find out how many Batteries and Solar Panels you'll need.
Calculate the number of solar panels & batteries you will require using simple one click choices using our System Sizing Estimator. A complete explanation of how to perform the calculations manually is also included. With just a few clicks the System Sizing Estimator will tell you quickly how many solar panels and batteries you'll need for a wide variety of system sizes.
Battery Bank Design Tool : Battery wiring made simple with just 4 clicks.
Our Battery Bank Design Tool will take the confusion out of wiring up your battery bank. Use 2, 4, 6, or 12 volt batteries to build a system voltage of 12, 24, or 48 volts using series and parallel wiring with just 4 clicks. Battery bank capacities from 300 AmpHours to over 4000 AmpHours are displayed graphically so you can see exactly how to wire the batteries together.
Wire Size Calculator : Get full power by using the correct wire sizes.
This Wire Size Calculator will allow you to quickly find the correct wire size by calculating the distance to your solar panel array & the amount of amperage used. No math required!

New pictures & more info on this Solar powered home. This small energy efficient home uses six 80 watt solar panels, a Trace 60 amp charge controller, a Trace 2500 watt true sine wave inverter and fifteen 105 AmpHour batteries. Click on the image for details and new updated pictures of Solar array. (Trace is now Xantrex)

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