Chapter 4 - Quiz | GoShop Energy Rwanda

1. What is the main objective of the site study prior to the installation of a photovoltaic system?

Verify that the site allows for optimal performance while ensuring the safety and durability of the installation. Determine only the price of the panels Choosing the brand of electrical equipment Define the maintenance contract

2. What factor can cause a significant decrease in energy production, even if only a small part of a panel is affected?

A slight increase in ambient temperature Cleaning too frequently Partial shading of photovoltaic cells The use of an aluminum structure

3. When several photovoltaic panels are connected in series, what electrical quantity is added together?

Yield The current Rated power Tension

4. What is the main advantage of a ground-mounted photovoltaic installation compared to a rooftop installation?

It completely eliminates electrical losses. It facilitates optimal orientation, maintenance and use of bifacial panels. It does not require any prior field study. It eliminates the need for fastening structures.

5. Why is it important to maintain a ventilation space behind photovoltaic panels?

To limit the heating of the panels and preserve their performance To automatically increase the voltage of the modules To reduce the length of electrical cables To improve the reflection of solar radiation

6. What protection is specifically designed to protect a photovoltaic installation against overvoltages due to lightning or transient phenomena?

DC fuses Bypass diodes Grounding Surge arresters (SPDs)

7. During an electrical check before commissioning, what operation allows verification that the positive and negative connections are correctly respected?

The isolation measure Visual inspection Polarity verification Inverter programming

8. What is the main objective of regular maintenance of a photovoltaic installation?

Maintain system performance and extend its lifespan Modify the electrical characteristics of the panels Increase the rated power of the modules Reduce the voltage of photovoltaic strings

9. Which of the following errors can lead to incorrect operation of the inverter?

Insufficient cleaning of the panels A slightly different inclination than the optimal angle Incorrect string sizing The use of an anodized aluminum frame

10. Which statement best summarizes a professional and efficient photovoltaic installation?

The power of the panels is the only determining criterion. Maintenance operations are optional if the panels are recent. A good installation depends solely on the quality of the equipment used. A high-performing installation relies on a site study, proper assembly, secure connection, appropriate protections and regular maintenance.

Solar panel

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Chapter 4 - Quiz