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Do you want to hand over the responsibility for the operation of your solar plant or . PV system to a professional? Our monitoring system provides all relevant. A Project Developer’s Guide to Utility-scale Solar Photovoltaic Power Plants ii. Figure 1: Project . Figure O&M Workers at a Large-scale Solar PV Plant. PV Operations and Maintenance. Version , March Period of convened by the National Renewable Energy Laboratory (NREL). The process was open to a Solar Access to Public Capital and the O&M Collaborative. .. training, and performance will support safe and reliable plant operation. Information such.

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Panel orientation is an issue for static PV solar systems. Even after the lightning energy has been discharged into the ground, it can still cause a power surge within the solar panels array, which is why a surge protection equipment is in order. First, panels might crack, even in the new once, if they have been damaged in the manufacturing process. Contrary to the common misleading opinion, solar panels are filetpe efficient when they gain maximum solar irradiance, not maximum temperature.

Since solar cells are attached in strings, just one hot spot can lead to multiple anv functioning poorly. Note that copper conductor may be tinned, and that aluminium is not allowed to be buried into the soil. This will include an inspection of support structure foundations for evidence of erosion from water run-off. Quite the contrary, high temperatures can actually damage solar panels, leading to the emergence of the hot spots.

Sensors and controllers should be checked periodically for calibration and alignment. Their serviceable life is up to 25 years, with 10 years of guaranteed performance. Visual discoloration is another common defect that reduces the amount of sunlight that penetrates into a solar cell. From the key issues to contracts structure, all explained in brief.

Different components of PV solar plant may fail during the operation. As maitenance clear from the table, Solar DAO PV plants are among the most robust ones, since the solar panels used are made of crystalline silicon which is characterized by the one of lowest annual degradation maintenancd.


Everything You Need to Know About Operations & Maintenance (O&M) For Utility Scale PV Solar Plants

The following table summarizes the degradation rates of solar panels made of different materials. Usually, manufacturing companies that produce solar modules offer warranties if degradation rate exceeds certain amounts, for example, if it is more than 0.

This is important to take into account in budgeting and investment planning. Filletype cracks may lead to the failure of panels or losses of optimal efficiency.

The good mqintenance is that the higher quality panel, the less natural degradation. To solve this problem, all shading should be negated, and electrical connections should be optimized. The module mounting assembly, cable conduits and any other structures built for the solar PV power plant should be checked periodically for mechanical integrity and signs of corrosion.

Natural degradation cannot be prevented, but must be taken into account in the planning process. It is sloar important to use the same type of metal in both the grounding system and in the protection equipment, so as to avoid corrosion. The alignment and positioning of the tracking system should also be checked to ensure that it is functioning optimally.

Everything You Need to Know About Operations & Maintenance (O&M) For Utility Scale PV Solar Plants

Maintenance can be broken down in two parts:. This is called natural degradation, and is completely normal for all solar cells to experience once in operation.

Hot spots occur when a panel is shaded, damaged, or electrically mismatched and decrease power output. The first level of such protection is the ground mount system itself, whereby the grounding system redirects the energy from the lightning into the ground and away from the panels. Depending on the foundation, different forms of grounding can be used, as summarized in the following table provided by the Desert Research Institute:. Similarly, tracking systems also require maintenance checks.

Generally, inverter faults are the most common cause of system downtime in PV power plants. Finally, depending on the environmental conditions, the panels must be protected from wind, snow, and soiling in dusty areas. All solar cells naturally degrade over time, regardless of the environment they are in. Once the PV solar plant has been builtit needs to be efficiently operated and carefully maintained. As opertaion the case with panel cracking, not much can be done once the panel became discolored, hence the solar panels must be carefully operated and maintained.


Blocked Unblock Follow Get updates. Other common unscheduled maintenance requirements include but are not limited to:. PV solar plant is a structure of considerable size, which is why some lightning opration is in order.

Regular cleaning and maintenance will be enough in zolar cases. Thus, opreation turning to the actual process and stages of maintenance and operation, one needs to understand the issues involved in the functioning of a PV solar plant. Feel free to leave a comment below. Preventative Maintenance PM includes the maintrnance activities:.

Compared to other power generating technologies, solar PV power plants have low maintenance and servicing requirements. The degradation rate must be weighed against the cost and the utility of maintwnance materials from which the solar models are made. Even with a proper grounding system, a PV installation can still filetjpe at risk from lightning.

In some cases it is not needed, if the grounding system is effective enough to reduce the lightning strike energy.

Become a member Sign in Get started. The reason it leads to loss of efficiency is because different color panels changes the wavelength of light that can be absorbed.

It can also be covered by warranties. Here, again, crystalline silicon stands out, as do conventional solar panels as opposed to concentrating photovoltaics that uses lenses and curved mirrors to focus sunlight on the solar cells.

In general, the checks will include inspection for wear and tear on the moving parts, servicing of the motors or actuators, checks on the integrity of the control and power cables, servicing of the gearboxes and ensuring that the levels of lubricating fluids are appropriate.