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Become smart about solar! Start here creating solar energy reports for your home. Predict power output, optimize and monitor your earnings. Because it's smart getting your money's worth from solar.

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We recommend the following product:Ertragsprognose
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How does the Yield Predictor help in making an informed purchase decision? Will investing in a solar electric system really pay off? There are many factors to consider: sunlight levels at your location, whether or not your roof is facing in a favorable direction, etc. You are well advised to begin your undertaking by gathering information how much electricity your roof is expected to deliver. It's good to familiarize yourself with the subject to the extent that you are sure to understand and verify a quote given by your installer. The Yield Predictor offers a professional and independent evaluation of energy production and is so intuitively to use that everyone can easily create his own solar site analysis.

We recommend the following product:PV System Survey

How does a search in the PV Survey Directory help with choosing solar products and finding a reputable installer? Informed customers make better choices: If you are thinking about buying a photovoltaic system and need some quality assurance information, check out our PV System Survey. You can search this database for manufacturer brands and installer companies. Look out for systems of the same brand or systems in your ZIP code area. How do comparable systems score on the performance scale? Check for the PR-value, the so-called performance ratio. This value should be at least 70%, preferably 80% or higher.

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Did you know that special financial spreadsheets make it easy for you to calculate solar ROI yourself? Take the result from the Yield Predictor and enter it into one of the ROI calculators offered with respect to European and US market conditions: PV-Kalk (for Europe) and OnGrid (for US).

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How do I find a qualified installer with a solar contractor license from NABCEP, the North American Board of Certified Energy Practitioners? Use NABCEP's installer locator to find an installer near you.

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Which insurance coverage is available for photovoltaic systems? The brochure "Insuring Solar Photovoltaics", published by the National Renewable Energy Laboratory (NREL), summarizes the present situation in regards to types of insurances available, cost, issues and challenges, along with recommendations to establish better insurance standards.