This App is available in English, German and Hungarian languages.PV Calculator is an application, designed for PV / Solar collector planners, installers or who are interested in this technology, so they can quickly calculate what kind of system is required at the given place. The App will go through the calculation in multiple stages. If you want to have a PV system, first you have to give your energy consumption per year or per month. The app can calculate, related to coordinates and irradiation, your required size of PV system.After you’ve chosen the system type and gave the datas, then you can see the location, where you are. Your device will use the GPS to give the exact location.After it, on the next screen is one of the most important ones, because it uses data like the angle and direction of your roof, so we can calculate with the parameters of your house. Tilt and turn your device to get your roof’s parameters. At the end of the App, a survey report can be viewed with system details. Once this report is complete, you will get the required system’s size, suggested inventories for the system. If you don’t have enough space for the calculated system or can't afford it, then you can see a smaller systems at this screen. In case of collectors, you will get two recommended system, such as flat plate and evacuated tube.Reports can also be emailed as a pdf file to your own email account with more details about the chosen system. Please rate this App if you like it.