PID – WHAT’S THAT?

If the modules have a negative potential to earth in operation, there is an equally high negative voltage between the cells of the PV module and the aluminum frame.

As a result, elec­trons from the mate­ri­als used mod­ule can sep­a­rate, fol­low this elec­tric field and final­ly flow out via the alu­minum frame (leak­age cur­rents). The result is an increas­ing charge (polar­iza­tion) of the mod­ule.

A PV MODULE DEGRADATION CAUSED BY
POLARIZATION AND LEAKAGE CURRENTS

CAUSES

The qual­i­ty of your mod­ules (e.g. the mate­r­i­al com­po­si­tion).

The sys­tem con­fig­u­ra­tion (e.g. the length of the mod­ule strings, the invert­er type).

Cli­mat­ic con­di­tions (High ambi­ent tem­per­a­ture, high irra­di­a­tion, high humid­i­ty, …).

CONSEQUENCES

Falling per­for­mance of your pho­to­volta­ic sys­tem by up to 50% in a very short time.

Per­ma­nent dam­age to the pho­to­volta­ic mod­ules.

Earn­ings loss­es and declin­ing returns can put your loan repay­ment at risk.

SOLUTION

Increas­ing the entire PV gen­er­a­tor to a high pos­i­tive poten­tial rel­a­tive to the earth poten­tial by using the Float Con­troller.

Use of PV sys­tem mon­i­tor­ing for the con­tin­u­ous super­vi­sion of earn­ings.

OUTCOME

Imme­di­ate PID pro­tec­tion for your pho­to­volta­ic sys­tem.

Regen­er­a­tion of your pv-instal­la­tion on up to 100% of the nom­i­nal capac­i­ty.

Secur­ing your returns.

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