17
July

Revamping of ground mounted pv plants: hydrogeological risk and how to act to not lose productivity.



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The hydrogeological risk is one factor to keep in mind both when planning to build a new solar power plant, or when external factors or the nature affect an existing one. When this happens, ground-mounted pv plants reduce their productivity.

A decline in productivity leads to an increase in the time needed to return from the investment in the solar power plant and, if there is no timely intervention through a series of settlement operations called revamping, the increase in costs.

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The biggest photovoltaic companies specialized in the EPC operate a number of preliminary studies in the direction of ensuring near-zero hydrogeological risk. However, it is not possible to completely eliminate the risk, for example, on large and medium-sized ground-mounted photovoltaic systems on extended terrain.

In case of problems related to hydrogeological factors, the revamping intervention on the photovoltaic system must be carried out in the shortest time possible and consists of three main operations: The first one is to have a thorough and timely analysis of the area where the photovoltaic system is installed or the damages suffered by the pv plant as a result of an external event.

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The second one is the restoration of the area, with correction such as ad hoc drainage systems capable of  being installed without interrupting the electricity production of the photovoltaic system.

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The third step to be taken is the replacement of damaged modules and panels and the realignment of the photovoltaic plant in order to restore the correct and efficient alignment of the solar pv system.

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Finally, restored the maximum efficiency of the ground-mounted photovoltaic system and sheltered from future environmental problems, it can be a good idea to implement improvements in the security such as fences and cameras that can monitoring the area 24h/day to avoid unauthorized intrusions and permit the maintenance intervention with even greater punctuality and precision.

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Restoration and revamping of a photovoltaic ground-mounted solar plant may take up from few weeks to a maximum of a few months in which, as said, the plant will never cease to operate, and the costs of the interventions will be largely offset by the return in term of electricity produced by the plant that will return to the highest levels of pre-damage.

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The best companies in the photovoltaic market are able to provide both EPC and O&M services that allow, through constant and time-controlled monitoring, to anticipate pv plant efficiency problems and cuts of energy production.

To find out more about Enerray O&M services you can visit the dedicated page.
To see the latest realizations of ground-mounted photovoltaic systems you can view the gallery at this link.

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