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.

Author: Yozshugis Fenrisar
Country: Portugal
Language: English (Spanish)
Genre: Environment
Published (Last): 20 December 2016
Pages: 72
PDF File Size: 6.95 Mb
ePub File Size: 15.76 Mb
ISBN: 509-2-87137-449-3
Downloads: 30985
Price: Free* [*Free Regsitration Required]
Uploader: Shajora

This will include an inspection of support structure foundations for evidence of erosion from water run-off. Preventative Maintenance PM includes the following activities:. PV solar plant is a structure of considerable size, which is why some lightning protection is in order. This is important to take into account in budgeting and investment planning. Depending on the foundation, different forms of grounding can be used, as summarized in the following table provided by the Desert Research Institute:.

Sensors and controllers should be checked periodically for calibration and alignment. In some cases it is not needed, if ppv grounding system is effective enough to reduce the lightning strike energy.

Finally, depending on the environmental conditions, the panels must be protected from wind, snow, and soiling in dusty areas. Here, again, crystalline silicon operarion out, as do conventional solar panels as opposed to concentrating photovoltaics that uses lenses and curved mirrors to focus sunlight on the solar cells. From the key issues to contracts structure, all explained in brief. Quite the contrary, high temperatures can actually damage solar panels, leading to the emergence of the hot spots.

Depending on the material, the rate of degradation can vary. Become a member Sign ;v Get started. First, panels might crack, even in the new once, if they have been damaged in the manufacturing process. Different components of PV solar plant may fail during the operation.

It is also important to use the same type of metal in both the grounding system and in the protection equipment, so as to avoid corrosion. Other common unscheduled maintenance requirements include but are not limited to:.

Maintenance can be broken down in two plang. Compared to other power generating technologies, solar PV power plants have low maintenance and servicing fi,etype. Feel free to leave a comment below. The degradation rate must be weighed against the cost and the utility of particular materials from which the solar models are made.

Blocked Unblock Follow Get updates. 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. 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 mainteenance of lubricating fluids are appropriate.

Note that copper conductor may be tinned, and that aluminium is not allowed to be buried into the soil.

Since solar cells are attached in strings, just one hot spot can lead to multiple cells functioning poorly. The good news is that the higher quality panel, the less natural degradation.

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

Regular cleaning and maintenance will be enough in these cases. Generally, inverter faults are the most common cause of system downtime in PV power plants. Visual discoloration is another common defect that reduces the amount of sunlight that penetrates into a solar cell. The following table summarizes the degradation rates of solar panels made of different materials.

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 plannt is in order. Similarly, tracking systems also require maintenance checks.

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

Thus, before 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. As a result, solar cells are mqintenance exposed to solar irradiation, and generate less energy. Natural degradation cannot be prevented, but must be taken into account in the planning process.

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. Contrary to the common misleading opinion, solar panels are most efficient when they gain maximum solar irradiance, not maximum temperature.

Hot spots occur when a panel is shaded, damaged, or electrically mismatched and decrease power output. The reason it leads to loss of efficiency is because different color panels changes the wavelength of light that can be absorbed. The cracks may lead to the failure of panels or losses of optimal efficiency.

The alignment and positioning of the tracking system should also be checked to ensure that it is functioning optimally.

As in 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. All solar cells naturally degrade over time, regardless of the environment they are in. Panel orientation is an issue for static PV solar systems. Their serviceable life is up to 25 years, with 10 years of guaranteed performance.

This is called natural degradation, and is completely normal for all solar cells to experience once in operation.