Solar

Question 1

Simplest type of system to size

Answer 1

Utility interactive

Question 2

Limitations to size an interactive system? Voltage per nec

Answer 2

Space and budget

Question 3

Fine balance when sizing a stand alone system

Answer 3

Supply and demand

Question 4

Loads to consider in sizing a bi-modal system

Answer 4

Critical loads

Question 5

Solar to generator tarot for a hybrid system?

Answer 5

90%: 10% to 40%:60%

Question 6

Load an inverter should be rated for?

Answer 6

Largest AC load

Question 7

Critical design ratio

Answer 7

Load demand vs. instillation ( for each month)

Question 8

System availability

Answer 8

% of time a system meets load- requirements

Question 9

In battery bank sizing it demands required capacity

Answer 9

Autonomy

Question 10

Accessibility

Answer 10

Safe/ practical access to equipment

Question 11

Cooler arrays

Answer 11

More reliable,last longer and more efficient

Question 12

Preferred mounting types

Answer 12

Rack and stand off

Question 13

Tracking system that receives the most solar irradiance

Answer 13

2-axis

Question 14

Galvanic corrosion

Answer 14

2 metals reacting degrading the lesser metal.

Question 15

Dead load

Answer 15

Permanent structural load -5to 10 psf

Question 16

Live load

Answer 16

Temporary structural load – 5 to 10 PSF

Question 17

Wind load

Answer 17

Structural load that comes from all directions – 25 to 50 PSF

Question 18

Snow load

Answer 18

Structural load found at the AHJ

Question 19

Vibration load

Answer 19

Structural load caused by equipment, roads, airports, trains, etc.

Question 20

Self ballasting advantage

Answer 20

No roofing penetration

Question 21

Maximum output-ciruit voltage for 1 and 2 family homes

Answer 21

600 volts

Question 22

Correction factor for maximum pv output voltage per nec

Answer 22

Temperature correction factor.

Question 23

Correction factor for maximum pv circuit current

Answer 23

125% or 1.25

Question 24

2 places to fined temperature correction factors array open circuit voltage

Answer 24

Module manufacturers specifications or nec 690.7

Question 25

Max inverter current can exceed nominal ratings under this condition

Answer 25

Match the highest current with the lowest voltage

Question 26

Wire (conductor) size system

Answer 26

AWG

Question 27

Ampacity

Answer 27

Current a wire can carry without exceeding its temperature rating

Question 28

Derate

Answer 28

The action of reducing a wires rated ability

ampacify

Question 29

What temperature does to a wires ampacity

Answer 29

Reduces a wires rated ability based on temperature

Question 30

What is system availability when sizing a system?

Answer 30

% of time over a year the system meet load requirements

Question 31

When selecting a battery bank what determines its required capacity

Answer 31

The autonomy period during the critical mounth

Question 32

What is the fine balance required when sizing a stand alone system

Answer 32

Supply VS. demand

Question 33

In critical design the ratio of energy demand to insulation is found how often

Answer 33

Each month

Question 34

In a hybrid system design what is the typical range of solar energy generator ratios

Answer 34

90% pv 10% generator

Question 35

When selecting an inverter what load should the inverter be rated for.

Answer 35

Slightly larger than the largest AC load

Question 36

What is the main limitations one sizing and interactive system

Answer 36

Space for the array and the customers budget

Question 37

In system sizing what is the simplest type of PV system to size

Answer 37

Utility interactive

Question 38

When sizing a modal System which load should you consider

Answer 38

Critical loads

Question 39

The percentage of the time the load is operating is called

Answer 39

Duty cycle

Question 40

When PV modules are substituted for regular building materials this mounting is called

Answer 40

Building integrated