Free Solar Software to help you to calculate your solar energy needs. Solar energy could be one of the best investments you make. Installing solar energy will put an end to rate increases from your utility company. Determining the cost of solar energy cannot be calculated based upon the size of your home. There are many other factors to be considered before you can get an estimate on the cost of using solar power for your home. Hopefully following softwares will be helpful!

Clean Energy Project Analysis Software is a unique decision support tool developed with the contribution of numerous experts from government, industry, and academia. The software, provided free-of-charge, can be used world-wide to evaluate the energy production, life-cycle costs, emission reductions, financial viability and risk for various types of proposed energy efficient and renewable energy technologies compared to conventional energy projects. Download it from RETScreen International website.

HOMER is another free software -computer model that simplifies the task of evaluating design options for both off-grid and grid-connected power systems for remote, stand-alone, and distributed generation (DG) applications. Download it from National Renewable Energy Laboratory website.

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