PV statistics and long-term degradation

PV energy system data

Important: Data sections described in this document are available for PV energy systems only, They are not provided for GTI energy systems.

When you simulate a PV energy system, its data, such as total PV power output, theoretical PV electricity potential, performance ratio, or long-term degradation, will also be calculated. You can explore and analyze this data in the PV statistics and PV long-term degradation sections, respectively.

Notes:

• The averages and summaries in the charts are always calculated using the data from COMPLETE years only! For example, if you look at a yearly summary chart in December, the calculated data will not include almost a whole year of data starting from January of the same year.

• Specific PV output charts depict data related to your site and technology, and total PV output provides data visualization regarding the actual modules and inverters used in the project.

• PVOUT Specific and PVOUT total do not consider internal and external unavailability, snow losses, or degradation. They provide theoretical values only.

PV statistics

Imporant: The charts in the PV statistics section provide theoretical PVOUT values only. They do not take degradation losses into account.

This category provides information about your PV system's potential power output and power output statistics based on calculations derived from the Solargis Time Series.

It provides valuable insights into your energy system's expected performance variability, aiding in informed decision-making, accurate budgeting, and proactive management to optimize energy production and mitigate risks.

Summary section

• Specific PV Power Output Chart: Used as a reference for comparisons. Informs you about the system's output power calculated from the average power per 1kWp at the given location.

• Total PV Power Output Chart: This shows you the total output of the whole system.

• Both are complemented with a monthly statistics table to view specific monthly parameters.

PVOUT specific, performance ratio (PR), and total PVOUT sections

• PVOUT Specific and PR: Assesses the efficiency of your solar energy system by comparing the actual energy output to the theoretically achievable energy output under ideal conditions.

• Monthly Statistics (PVOUT Total): This represents monthly averages with minimum and maximum PVOUT values for each month.

• Monthly Statistics Table: Offers specific monthly average values, including performance ratio and standard deviation.

• Hourly statistics by month: Gives you a visual overview of the average hourly specific/total PVOUT for every month in the Time Series.

• Hourly averages heat map (PVOUT total): Shows total PV power output in the form of a heatmap to spot the extremities quickly.

• Monthly Time Series Chart: Breaks down the averages for each month for every year in the time series.

Tip: Depending on the granularity of the simulation (selected data set), you can explore daily, hourly, or 15-minute PVOUT values, respectively. Hover over the chart to view more details.

PV long-term degradation

Long-term degradation charts depict the decline in your system’s PVOUT value, which represents the energy output drops over time. They provide you with insights into how much energy production can be expected to decrease, aiding in financial forecasting and operational planning.

The values are visualized in the PV electricity lifetime production table (also indicating the degradation rate), and are complemented with specific and total PVOUT degradation charts.