Solar Plant Not Performing Well? 6 Common Reasons and How to Resolve Them

Solar plant performance issues can be irritating, especially when there is considerable dependency on the energy generated in the plant. Most often, performance issues occur due to several reasons that include technical, environmental, and maintenance-related factors. Understanding these challenges helps businesses take timely corrective action.

A solar plant not performing well can result in inadequate energy generated to run the essential operation, which also affects savings as well as the return on investment. Any functioning errors, when ignored, can result in major setbacks, incur more expenses in rectifying the fault, and cause longer periods of downtime. This is why identifying any performance glitch at an early stage helps restore efficiency and maintain consistent power generation.

Most often, performance issues occur due to improper system design or installation. This affects the maximum output that can be delivered in the power plant.

Some of the common problems include:

• Inconsistency and issues in panel orientation or tilt.


• Cable sizing issues.


• Poor quality of inverter selection.  

Working in collaboration with an experienced EPC company like Waaree RTL , the design and functioning of the plant can be done with precision, with site conditions and energy requirements in mind. In case there are already some issues existing, a technical audit by the EPC firm can help identify and correct design flaws.

One of the most common reasons for improper functioning of the solar plant is the accumulation of dust and dirt, which blocks sunlight and affects energy production, especially in industrial and semi-urban environments. 

This can affect in terms of:

• Decreased efficiency of the panel working


• Lower daily energy output.


• Gradual decline in performance.

With regular cleaning and maintenance, the dust accumulation can be prevented, ensuring optimal performance levels.

An inverter is present in the solar system, which converts DC power into usable AC electricity.  When there are issues with the inverter, it can result in:

• System breakdowns.


• Can display error messages or alerts.


• Can decrease conversion efficiency.

With periodic inspections and timely servicing, one can avoid these disruptions.

Ensure there is no block of sunlight and no presence of shade to prevent any effect on energy generation.

Effects include:

• Decreased levels of energy production in shaded areas.


• Uneven system performance.

One must regularly check for any shading sources. Trim the trees and reposition panels to enhance the output.

Without regular monitoring activities, smaller issues can escalate into major ones, resulting in longer downtime with additional expenses, calling for the need for regular system performance tracking.

Some of the issues include:

• No regular tracking of real-time performance.


• Delay in detecting any lags and faults.


• Inadequate maintenance activity.

With a structured maintenance plan with monitoring tools in place, any deviations can be detected and rectified instantly.

The solar system also experiences wear and tear, where panels, cables, and other components may degrade, over a period of time, causing reduced efficiency.

Signs of degradation:

• Decline in energy output over a period of time.


• System losses.


• Frequent detection of minor faults.

Partnering with the right EPC company not only helps in the precise installation of the system but also in periodic checks of the system, ensuring long-term system efficiency. 

Experienced providers help with:

• System design that is accurate and precise.


• Selection of components of superior quality.


• Precise and efficient installation process.

Renowned brands like Waaree RTL, which come with years of experience in industry practices, with successful installation of solar projects, enable businesses to maintain optimal plant performance while addressing challenges effectively.

Solar plants are meant to be a long-term investment that’s expected to provide a return on investment in terms of saved electricity bills over a period of time, as maximum energy for utilisation is granted using the installed system. This consistently reduces dependency on the grid. Designing and installing the right system to meet the energy requirements is essential, and partnering with the right EPC company helps enhance efficiency and prevent any functioning issues.   A solar plant not performing well can bring in several issues, and taking the corrective steps at the right time helps with optimum performance, securing long-term energy benefits.