What is a solar Photovoltaic Certification Exam?

The document is a practice exam for solar photovoltaic certification that contains 70 multiple choice questions testing knowledge of PV system components, electrical calculations, safety procedures, and best practices.

What type of battery is used in a PV system?

In Photovoltaic (PV) systems, the lead-acid cell is historically the most common type of storage battery used. Newer energy storage systems like lithium-ion are also becoming common-place as the costs of these battery systems continue to decrease and performance improves.

How is battery size determined in a PV system?

Battery size in a PV system is determined by the average daily electrical load and a desired number of days of battery storage. The number of days of storage is selected based on the importance of the application and the desired average daily depth-of-discharge for the battery.

Who is required to install a PV system?

According to the NEC, anyone installing a PV system or its equipment, including electrical power production sources operating in parallel with a primary source of electricity, must be a qualified person [690.4(C), 705.6]. PV systems have unique hazards, and a qualified person must have special training, skills, and knowledge to safely work on these systems.

How should a Photovoltaic (PV) system be tested?

Photovoltaic (PV) systems should only be tested by qualified personnel. Before conducting any testing, identify all safety hazards, mitigate the hazards, select the appropriate PPE, and ensure that all tools and meters are properly rated for the system voltage and current. Testing should include continuity of grounding and bonding as well as AC circuit voltage and phasing. Prior to conducting any testing, identify all safety hazards; mitigate the hazards; select the appropriate PPE; and ensure that all tools and meters are properly rated for the system voltage and current.

What are the requirements for flat-plate photovoltaic modules?

NABCEP's requirements apply to flat-plate photovoltaic modules intended for installation in accordance with the NEC and for use in systems with a maximum voltage of 1500 volts or less. The corresponding international standard is IEC61730, which has been harmonized with UL 1703.