Location
The geographic position of the proposed PV plant. Latitude and longitude influence the solar path, available irradiation and local weather conditions used in the energy estimate.
SOLAR ENGINEERING TOOL
Solar Energy Yield Calculator.
Explore a location on the map, configure your solar PV system, and estimate its potential energy generation. Adjust the system parameters to understand how location and orientation influence solar performance.
CONFIGURE YOUR SOLAR PV SYSTEM
Select a location and enter your system parameters
Explore a location on the map, configure your solar PV system, and estimate its potential energy generation.
System parameters
This map is the live simulation tool.
Search for a location or select a point on the map, set the PV parameters,
and generate an initial energy-yield estimate.
Understanding the inputs
What do the parameters mean?
These parameters describe the location and basic configuration of your PV system. The estimate depends on the weather data, system assumptions and calculation method used by the tool.
Tilt / Pitch
Tilt is the angle of the PV module surface relative to the horizontal plane. A tilt of 0° means the modules are horizontal; 30° means they are inclined by 30°. The optimum angle depends on location, season, mounting arrangement and the objective of the system.
Azimuth
Azimuth describes the compass direction the PV modules face. In this tool, the default is 180°, which means solar panels are facing South. 0° is north, 90° is east, and 270° is west facing.
Installed capacity
The nominal PV system capacity entered in kilowatts (kW). For example, 10 kW represents a system with a nominal DC capacity of 10 kilowatts.
Solar irradiation
Solar irradiation describes the solar energy received over an area during a period. Irradiation on the module plane depends on location, module orientation, solar position and weather conditions.
Energy yield
Energy yield is the electrical energy generated over a period, commonly expressed in kWh or MWh. Actual output also depends on module and inverter characteristics, temperature, shading, soiling, electrical losses and system availability.
Important: Tilt, azimuth and capacity alone do
not fully define a PV plant. Detailed engineering estimates also
require suitable equipment assumptions, shading and loss models,
and a clearly defined DC/AC capacity basis.
Weather data and methodology
How does the solar yield estimate work?
Solar yield estimation combines the selected location and system configuration with solar radiation and meteorological data.
1
Select the location
Search for a place or select a location on the map. The application uses the selected geographic coordinates for the simulation request.
2
Retrieve solar and weather data
The intended workflow uses PVGIS solar and meteorological data where supported by the configured backend. PVGIS provides location-dependent solar radiation and weather datasets that can be used for PV performance estimation.
3
Configure the PV system
Enter the module tilt, azimuth and installed capacity. These inputs define key aspects of the proposed system. Other equipment and loss assumptions are considered in the calculation model.
4
Run the simulation
The page sends the simulation request through the existing JavaScript and backend integration. The backend processes the available inputs and returns the results displayed by the calculator.
Understanding the weather file and its limitations
PVGIS can provide historical or representative meteorological datasets, depending on the selected data source and request. A typical meteorological year is not a forecast for a specific future year. The precise dataset, reference period, temporal resolution and any fallback source used by this calculator must be confirmed from the backend implementation and its response. Results should be treated as estimates rather than guaranteed plant production.
Before using the results
What should you keep in mind?
Compare locations consistently
Use the same capacity basis, equipment assumptions and modelling settings when comparing multiple locations. Otherwise, differences may reflect the assumptions rather than the resource alone.
Check the system design
A preliminary yield estimate is not a substitute for a detailed PV design. Module and inverter selection, string configuration, shading, clipping and electrical losses can materially affect expected output.
Use results as an initial estimate
For project development and investment decisions, validate the dataset, system assumptions and performance model. Consider uncertainty, degradation, downtime and site-specific conditions before relying on the estimate.