"PV electricity estimation based on the modules area"
Transferring PV terminology to the Architects Community (from m2 to kWh)
This work focuses on the need from the PV community to adapt their products and terminologies to the building sector, and concretely to architects. Instead of talking about the installed PV capacity in the first place the predicted annual energy generation in kWh should be communicated as the main figure. The value of kWh is widely spread, which is not the case for the unit kWp outside the PV industry. This transition is not easy and straight forward, since the value of kWh/year raises expectations from the user. A standard procedure for this transition needs to be defined that also has to consider various solar cell technologies (crystalline, thin film etc.).
This aim of this report is to present how the transfer from mē to kWh can be done in an easy way. Furthermore, a EXCEL TOOLBOX accompany this document which will serve as an indicator of how much electricity can be produce by building integrated PV system in different locations within Europe just based on the total module area and not in the nominal power of the PV system.
An excel tool has been developed in order to facilitate the estimation of "how much electricity is generated by a PV system?" without having an expertise on PV system technology. The tool is not meant to be used for real calculations because it is based on average irradiance data and the characteristics link to each type of technology used is based on average efficiencies. Professional simulation tools can be easily found in the market for PV system designs and energy output calculations.
The toolbox aims at raising the interest and understanding of people who are not directly involved in the PV sector. The tool provides information for a number of European locations and for three different types of system designs.
What makes this tool exceptional is that the electricity output is calculated based on the area of the modules (mē) and not in the installed capacity. The tool also allows comparing average household electricity consumption with the estimated electricity generated. It even allows to the user to introduce real electricity consumption based on the electricity appliances used so that the comparison can reflect the needs of the user.