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Collection of tools to know and work with solar energy. Calculation of: sun position, latitude longitude coordinates, photovoltaic systems, emissions CO2.

		Photovoltaic payback Economic analysis of a photovoltaic system, with the determination of payback and chart.
		Sun Position Calculation of sun’s position in the sky for each location on the earth at any time of day. Azimuth, sunrise sunset noon, daylight and graphs of the solar path.
		CO2 Emissions Measure emissiones of CO2 per kWh of energy produced, or emissions in g/km of your car. Enter the kWh produced by a year the nation’s electricity mix.
		Unit of measure converter Conversion online of units of measurement. Length, Area, Volume, Plane angle, Solid angle, Mass, Density, Time, Frequency, Speed, Flow, Acceleration, Force, Pressure or mechanical stress, Torque or moment of force, Energy, work, or amount of heat, Power or heat flow rate, Dynamic viscosity, Kinematic viscosity, Electric current, Electric charge, Electric dipole, Electromotive force, electric potential difference, Electrical resistance, Capacitance, Magnetic flux, Magnetic flux density, Inductance, Temperature, Information entropy, Luminous intensity, Luminance, Luminous flux, Illuminance, Radiation.
		Interactive Map Calculator of earth coordinates, with interactive Google Maps, tool to calcula latitude, longitude, distance (km, meters, mile, foot) between two or more points of the earth, or calculate area and perimeter . You can view this information simply by clicking on map.
		Distance Calculation of the distance (km, meters, mile, foot) between two point in the earth, is possible calcolate the bearing angle between the points and the destination point with start point, distance and bearing.
		Coordinates conversion Conversions of latitude and longitude geographic coordinates, in various formats (decimal, sexagesimal DD DM DMS) degrees minutes seconds. Useful in various activities of design, and for convert GPS data (Global Positioning System). You can also search the coordinates on map by clicking search icon (web page Earth coordinates).
		SunRise SunSet Calendar Calendar of sunrise sunset noon daylight of the sun at any location on the planet for an entire year. The table shows the time and azimuth in degrees.
		Photovoltaic FAQ This section lists the FAQ (Frequently Asked Questions) on photovoltaic systems and in general the sources of renewable energy.

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