Risk analysis of photovoltaic energy storage field

What are the risks associated with solar PV?

These risks include the grid frequency going out of the ±0.5 Hz limit, feeder circuits disconnecting and shorts to ground. The first two risks are expected to increase as the penetration of solar PV generation increases, because the solar systems may introduce transients or voltages that are out of phase with the grid.

Are solar panels a risk factor for a solar power grid?

analysis indicated that the greatest risk for an electric power grid with solar PV systems was weather causing the solar panels to receive less sunlight than expected. This is a crucial factor for a self-sustaining PV system, but it is less important for a large-scale system comprised of both renewable (solar) and non-renewable resources.

Are solar PV systems unintended?

Deploying solar PV systems has another interesting possible unintended consequence. Solar panels do two things: they absorb solar energy and transform it into electricity, and they also reflect solar energy back into the atmosphere. Both of these actions reduce the solar energy that hits the ground and is absorbed by the Earth.

How can solar energy variability be mitigated?

This risk can be mitigated by using energy storage systems or increasing backup generating capacity. In consequent iterations, this risk was modified in order to encompass output energy variability: large changes in solar energy output (±60 MW) that would correspond to a solar energy output variation of ±3 sigma in a 15-minute period.

Should a solar PV system be self-sustaining?

This is a crucial factor for a self-sustaining PV system, but it is less important for a large-scale system comprised of both renewable (solar) and non-renewable resources. This risk can be mitigated by using energy storage systems or increasing backup generating capacity.

What are the most important risks of a solar substation?

Finally, the most important risks are different for the two severity techniques. The log-log technique (columns A to G) indicates that the most serious risks are (in order of importance): (1) Solar energy drops 60 MW in 15 minutes, (2) Terrorist attack, (3) Volcanic eruption and (4) Feeder circuit disconnecting from the substation.