Exam 22: Commercial Utility-Interactive Photovoltaic Systems

The installation of utility interactive solar photovoltaic systems has accelerated in recent years due to energy conservation and ____ concerns.

Using the ____ and module frame grounding location specified in the module installation instructions is the only way to ensure connection integrity for the life of the system.

The electrical energy produced by a photovoltaic system can be stored using ____ to supply the building's electrical needs at night or on overcast days.

The equipment that converts the direct current produced by modules into an alternating current (ac)output is known as a(n)____.

Describe the requirement for a grounding electrode system for a utility interactive photovoltaic installation.

NEC 705.10 requires that a(n)____ that indicates all interconnected power sources for the premises be installed at the service and the location(s)of the power production source(s).

How can the photovoltaic effect can be put to practical use in a commercial building?

A ground-mounted photovoltaic module array for a commercial building may be constructed so that it can be used as ____.

The NEC requires all utility interactive inverters to be listed to UL 1741 . Please explain the two key requirements of the standard.

If additional grounding electrodes are used, they are connected directly to ____.

The maximum dc source current is defined by NEC 690.8(A)as the sum of parallel module rated short circuit currents multiplied by ____ percent.

What has the 2011 NEC required for arc-fault protection, and what are its three functions?

The general procedure for inverter startup is to check ____ and current levels from the source (modules)to inverter closing disconnects and compare with expected values.

Grounded conductors, whether dc or ac, must be identified with white or ____ insulation in accordance with NEC 200.6.

The plans for commercial PV projects usually have to be submitted to the ____ for review and comment prior to issuance of a permit.

What is the purpose of single-line diagram, and what information should it include?

A ____-line diagram is an electrical schematic diagram for the utility interactive PV system.

Ampacity correction for ____ temperature must be considered for both the dc and ac system conductors.

The most common material used today for production of photovoltaic cells is ____.

Photovoltaic modules in an array produce ____ electricity when exposed to sunlight.