NABCEP PV Certification Study Guide with all Correct & 100%
Verified Answers |Latest Version |Already Graded A+
1. Key items to evaluate during a site
-Building type and roof design
survey for ROOF-MOUNTED PV arrays
-Roof dimensions, slope and
orien- tation
-Roof surface type, condition
and structural support
-Fall protection methods required
-Access for installation and
mainte- nance
-Fire setbacks
-Rapid Shutdown requirements
2. PV Systems (def.) electrical power generation
systems that produce energy
3. Power conditioning equipment includes: inverters, dc-to-dc converters, charg-
ers, charge and load controllers, and
maximum power point trackers.
4. Balance of System (BOS) components include: - Conductors and wiring
methods
-Raceways and conduits
-Junction and combiner boxes
-Disconnect switches
-Fuses and circuit breakers
-Terminals and connectors
-Grounding equipment
-Array mounting and other
structural hardware
5. PV System Components: 1. PV modules and array
2. Combiner box
3. DC disconnect
4. Inverter (charger & controller)
1/
65
, NABCEP PV Certification Study Guide with all Correct & 100%
Verified Answers |Latest Version |Already Graded A+
5. AC disconnect
6. Utility service panel
7. Battery (optional)
6. Stand-alone PV Systems (def.) operate independently of other
elec- trical systems and are
commonly used for remote
power or back-
up applications including lighting,
water pumping, transportation
safe- ty devices,
communications, ott-grid homes,
and many others
7. Stand alone PV systems may be dc and/or ac electrical loads, and
designed to power...what kinds of with a few exceptions, connect
loads? with energy storage systems
8. Stand alone PV system power source...is what? PV array can be sole power
source OR
may use wind turbines, engine-
gen- erators, or other aux.
source
9. Interactive PV Systems...how do they operate? operate in parallel and are
intercon-
nected and synchronized with the
utility grid.
10. The ac power produced by 11. Interactive PV
interactive sys- tems...goes where? systems are
required to
discon- nect from
the grid...when?
2/
65
, NABCEP PV Certification Study Guide with all Correct & 100%
Verified Answers |Latest Version |Already Graded A+
12. Electrical loads (def.) and either supplies on-site electrical
characterization.
loads or is back-fed to the grid
when the PV system output is
greater than the site load
demand
during utility outages or
disturbances for safety
reasons.
3/
65
, NABCEP PV Certification Study Guide with all Correct & 100%
Verified Answers |Latest Version |Already Graded A+
are any type of device,
equipment, or appliance that
consumes electrical power.
Characterized by their voltage,
power consumption, and use
profile.
13. AC loads are powered by...what? inverters, generators, or utility grid
14. DC loads operate from...what source? A DC source, such as a battery.
15. Electrical power is expressed in units of...what? Watts (W)
1MW = 1,000kW = 1,000,000W
16. Electrical energy is expressed in Watt-hours
units of...what? (Wh) 1 kWh =
1,000 Wh
17. Power (def.) the rate of transferring work or
ener- gy
18. Energy (def.) total amount of work performed
over time.
Energy (Wh) = Avg. Power (W) x
time (hr)
19. Calculate power density of a 260 watt 260/17.3 = 15.0W/sf
crys- talline silicon PV module with a
surface area of 17.3sf
20. solar azimuth (def.) angle that defines the direction
of the sun's horizontal projection
relative to a point on earth
(greek letter psi)
4/
65
Verified Answers |Latest Version |Already Graded A+
1. Key items to evaluate during a site
-Building type and roof design
survey for ROOF-MOUNTED PV arrays
-Roof dimensions, slope and
orien- tation
-Roof surface type, condition
and structural support
-Fall protection methods required
-Access for installation and
mainte- nance
-Fire setbacks
-Rapid Shutdown requirements
2. PV Systems (def.) electrical power generation
systems that produce energy
3. Power conditioning equipment includes: inverters, dc-to-dc converters, charg-
ers, charge and load controllers, and
maximum power point trackers.
4. Balance of System (BOS) components include: - Conductors and wiring
methods
-Raceways and conduits
-Junction and combiner boxes
-Disconnect switches
-Fuses and circuit breakers
-Terminals and connectors
-Grounding equipment
-Array mounting and other
structural hardware
5. PV System Components: 1. PV modules and array
2. Combiner box
3. DC disconnect
4. Inverter (charger & controller)
1/
65
, NABCEP PV Certification Study Guide with all Correct & 100%
Verified Answers |Latest Version |Already Graded A+
5. AC disconnect
6. Utility service panel
7. Battery (optional)
6. Stand-alone PV Systems (def.) operate independently of other
elec- trical systems and are
commonly used for remote
power or back-
up applications including lighting,
water pumping, transportation
safe- ty devices,
communications, ott-grid homes,
and many others
7. Stand alone PV systems may be dc and/or ac electrical loads, and
designed to power...what kinds of with a few exceptions, connect
loads? with energy storage systems
8. Stand alone PV system power source...is what? PV array can be sole power
source OR
may use wind turbines, engine-
gen- erators, or other aux.
source
9. Interactive PV Systems...how do they operate? operate in parallel and are
intercon-
nected and synchronized with the
utility grid.
10. The ac power produced by 11. Interactive PV
interactive sys- tems...goes where? systems are
required to
discon- nect from
the grid...when?
2/
65
, NABCEP PV Certification Study Guide with all Correct & 100%
Verified Answers |Latest Version |Already Graded A+
12. Electrical loads (def.) and either supplies on-site electrical
characterization.
loads or is back-fed to the grid
when the PV system output is
greater than the site load
demand
during utility outages or
disturbances for safety
reasons.
3/
65
, NABCEP PV Certification Study Guide with all Correct & 100%
Verified Answers |Latest Version |Already Graded A+
are any type of device,
equipment, or appliance that
consumes electrical power.
Characterized by their voltage,
power consumption, and use
profile.
13. AC loads are powered by...what? inverters, generators, or utility grid
14. DC loads operate from...what source? A DC source, such as a battery.
15. Electrical power is expressed in units of...what? Watts (W)
1MW = 1,000kW = 1,000,000W
16. Electrical energy is expressed in Watt-hours
units of...what? (Wh) 1 kWh =
1,000 Wh
17. Power (def.) the rate of transferring work or
ener- gy
18. Energy (def.) total amount of work performed
over time.
Energy (Wh) = Avg. Power (W) x
time (hr)
19. Calculate power density of a 260 watt 260/17.3 = 15.0W/sf
crys- talline silicon PV module with a
surface area of 17.3sf
20. solar azimuth (def.) angle that defines the direction
of the sun's horizontal projection
relative to a point on earth
(greek letter psi)
4/
65
