So what does this mean for my PV system?
In terms of the yield of any PV system, the irradiance alone does not tell the complete story. Sure, it’s important, but yield is also affected by the pitch and azimuth of the modules, the system’s efficiency and shade losses.
Autarco’s design and monitoring software has all the answers. By modelling a PV system, an exact virtual copy is created, where all the yield influencing aspects as described before are taken into account. Based on the design a yield prognosis is calculated, using the long term average irradiance for the exact location of the system. This makes it possible to very accurately calculate the return on investment for any PV system, and is much more secure than the standard figures still used to estimate yields in terms of kWh per kWp. After all, these numbers do not tell the whole story and are often too high.
Check, check, double check
After installation and registration of an Autarco PV system, the installation is verified to be sure that it is exactly similar to its virtual twin. By doing so, Autarco is able to monitor performance on all of its systems with great accuracy. We don’t look at standard figures and estimates whatsoever, based on the virtual twin and the actual meteorological satellite data, we know exactly what a system’s yield should be at any time. By comparing this with the actual yield as communicated by the inverters, we know immediately when something’s wrong and maintenance or repairs should take place.