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Alternative Energy Systems > [L4]_Solar PV Systems > Flashcards

[L4]_Solar PV Systems Flashcards

1
Q

ENGY-775

What year was the SSPS concept created?

[L4]

A

1972

[L4]

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2
Q

ENGY-775

What is a Dyson Sphere?

[L4]

A

It is a proposed megastructure which would encircle a star to harness its solar power production.

[L4]

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3
Q

ENGY-775

List all eight (8) Remote PV Power System equipment examples.

[L4]

A
  1. Parking Meter
  2. Navigation Buoy
  3. Telemetry System
  4. Street Lights
  5. Radios
  6. Telecommunications
  7. Charging Stations
  8. WiFi Trash Compactors

[L4]

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4
Q

ENGY-775

What is the name of the copper component in the image?

[L4]

A

Busbar Plate

[L4]

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5
Q

ENGY-775

What is the typical range for the coefficient of losses regarding the Performance Ratio of a solar PV system?

[L4]

A

0.5 to 0.9 but typically 0.75

[L4]

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6
Q

ENGY-775

Name four (4) typical roof obstructions to look out for during your site survey.

[L4]

A
  1. Hatches/Bulkhead
  2. Skylights
  3. Pipes & Vents
  4. Satellite Dishes

[L4]

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7
Q

ENGY-775

True or False: Solar PV panels can be harmful to the environment at the end of its life cycle?

[L4]

A

True

[L4]

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8
Q

ENGY-775

What is the NEC article for calculating the PV wire size regarding to current?

[L4]

A

690.8(A)(3) and 690.8(B)(2.a)

[L4]

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9
Q

ENGY-775

What is the advantage of the SSPS concept?

[L4]

A

No interference from Earth’s atmosphere producing 24 hr/day and 365/yr consistent power generation.

[L4]

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10
Q

ENGY-775

Why were Feed-In-Tariffs created for Solar PV Systems?

[L4]

A

Feed-In-Tariffs were created to help control and track the credits or payments that can be made for power generated by a homeowner being sold back to the grid.

[L4]

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11
Q

ENGY-775

What is the LCOE for a solar project?

[L4]

A

LCOE = PC - ITC + O&M + LP -PVPBI

[L4]

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12
Q

ENGY-775

What does WEEE define and who created it?

[L4]

A

It is the standard and guidance issued by the EU for how to appropriately dispose of end of life cycle solar PV panels.

[L4]

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13
Q

ENGY-775

What is the minimum unbostructed distance required for Solar PV system FDNY roof access?

[L4]

A

6-feet

[L4]

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14
Q

ENGY-775

What is the suggested software used for an initial solar PV design spot check?

[L4]

A

Google’s Project Sunroof

[L4]

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15
Q

ENGY-775

What is the benefit of a Remote PV Power System?

[L4]

A

Remote Solar PV systems dedicate powering stand alone battery systems for a piece of equipment that have a specific function or purpose w/o the need for connection to the grid.

[L4]

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16
Q

ENGY-775

What type of wave length was proposed for the SSPS to work?
* (A) Radio waves
* (B) Infared waves
* (C) Microwaves
* (D) Ultraviolet waves

[L4]

A

Microwaves

[L4]

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17
Q

ENGY-775

What does WEEE stand for?

[L4]

A

Waste Electrical and Electronic Equipment (WEEE)

[L4]

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18
Q

ENGY-775

What was the name of largest E-Waste city in the world?

[L4]

A

Guiyu of the Guangdong province in southern China

[L4]

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19
Q

ENGY-775

What is a Brownfield?

[L4]

A

A Brownfield is an undeveloped, uninhabitable, or environmentally contaminated land site.

[L4]

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20
Q

ENGY-775

Name eight (8) required items included in your Electrical 3-lines Riser Diagram.

[L4]

A
  1. Panel Type
  2. Total System Size
  3. Inverter Type
  4. Wire Size
  5. Number of Conductors
  6. Interconnection Method
  7. Solar PV panel strings
  8. Number of disconnect switches

[L4]

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21
Q

ENGY-775

What is conduit fill derate?

[L4]

A

The number of allowed conductors in a conduit pipe to not induce excessive heat generation and voltage loss due to temperature rise.

[L4]

22
Q

ENGY-775

What is the proposed Solar PV interconnecting conductors connecting to in the image at point “B”?

[L4]

A

Copper Bus Plate

[L4]

23
Q

ENGY-775

What is the definition of Temperature Coefficient as it relates to Solar PV panels?

[L4]

A

A conversion factor relating to every degree change with a corresponding change in voltage.

[L4]

24
Q

ENGY-775

What is the typical age for the end of life cycle of a solar PV panel?

[L4]

A

20 years

[L4]

25
Q

ENGY-775

Name the main three (3) Solar PV interconnection methods.

[L4]

A
  1. Supply Side Connection
  2. Load Side Connection
  3. Load Side Connection via Circuit Breaker

[L4]

26
Q

ENGY-775

What does SSPS stand for?

[L4]

A

Satellite Solar Power System

[L4]

27
Q

ENGY-775

True or False: Commercial roof tops are typically flat membrane assemblies with less than 1” slope.

[L4]

A

True

[L4]

28
Q

ENGY-775

What is this?

[L4]

A

Solar Powered Trash & Recycle Compactors

[L4]

29
Q

ENGY-775

What is the disadvantage of the SSPS concept?

[L4]

A

The proposed SSPS would take too long to construct and too expensive to build.

[L4]

30
Q

ENGY-775

Name six (6) common Solar PV System design softwares?

[L4]

A
  1. Aurora Solar
  2. Heliscope
  3. HOMER
  4. PVComplete
  5. Solar Design Tool
  6. Revit Insight

[L4]

31
Q

ENGY-775

What type of installation is best utilizing brownfields?

[L4]

A

Large scale utility solar PV array farms

[L4]

32
Q

ENGY-775

What is a backfeed solar PV system?

[L4]

A

Solar PV back feed systems are when a system provides excess power is generated onsite during hours of idling in the 24 hour cycle sent back to the utility grid.

[L4]

33
Q

ENGY-775

What is the concept of SSPS?

[L4]

A

Constructing a large PV array in space which will be placed in geostationary orbit around the Earth to transmit power down to the surface directly.

[L4]

34
Q

ENGY-775

On a commerical level what are the two (2) benefits of a BIPV installation?

[L4]

A

The excess power generated can be sold back to the utility grid as a cost offset for the installation. Also, the continuing sale can assist in reducing the operating cost of the facility.

[L4]

35
Q

ENGY-775

What is the first item you should request from a potential client to calculate the solar PV kW demand for a project?

[L4]

A

Request copies of the previous annual electric energy bills.

[L4]

36
Q

ENGY-775

Traditionally, are BIPV installations more or less expensive up front for a project?

[L4]

A

More Expensive

[L4]

37
Q

ENGY-775

True or False: If an existing home has a gable structure roof, would you want to design a Solar PV system for both sides?

[L4]

A

False

[L4]

38
Q

ENGY-775

What are the typical Solar PV system components in order from the PV panel?

[L4]

A
  1. Solar PV Panels
  2. Combiner Boxes
  3. Inverters
  4. Disconnect Switches
  5. Net Meter
  6. Interconnect Disconnect Switch

[L4]

39
Q

ENGY-775

What is the maximum solar PV system kW capacity allowed on a project by ConEdison?

[L4]

A

110% of the calculated annual kW demand

[L4]

40
Q

ENGY-775

What does LCOE stand for?

[L4]

A

Levelized Cost of Energy

[L4]

41
Q

ENGY-775

How many** Solar PV panels** are shown in the image?

[L4]

A

858 Solar PV Panels

[L4]

42
Q

ENGY-775

How do you calculate the number of solar PV panels required for a proposed system?

[L4]

A
  1. (System kW Size) / (kW per PV panel) = # of PV Panels
  2. (Total Available Net Roof Surface Area) / (SQFT area of selected PV Panel) = # of PV Panels

[L4]

43
Q

ENGY-775

Name the eight (8) project milestones to complete a Solar PV system?

[L4]

A
  1. Follow up for a Sales Lead
  2. Perform Site Existing Condition Survey
  3. Provide Electrical 3-line Riser Diagram and Plans
  4. Approval from AHJs (Utility and local DOB)
  5. Construction of the Solar PV System
  6. Quality Control Inspections
  7. System Power On Approval from local Utility
  8. Final system Solar PV Project Commissioning Testing

[L4]

44
Q

ENGY-775

What is the name of the professional contractor installer certification?

[L4]

A

NABCEP Certified - PV Installation Professional

[L4]

45
Q

ENGY-775

What is the fully broken down LCOE residential equation?

[L4]

A

[L4]

46
Q

ENGY-775

What is BIPV?

[L4]

A

Building Integrated Photovoltaics

[L4]

47
Q

ENGY-775

How do you calculate the total solar PV system size in preliminary phase?

[L4]

A

Ex. 12 month Electrical usage / Annuum Direct Normal Solar Irradiance / 0.85 = System Size (kW)

[L4]

48
Q

ENGY-775

What is the minimum diameter a receiver dish required to accept power from a SSPS in space?

[L4]

A

10 Kilometers

[L4]

49
Q

ENGY-775

Name the typical solar PV system loss ranges for the following components:
1. Inverter Losses
2. AC Cable Losses
3. Temperature Losses
4. DC Cable Losses
5. Shading Losses
6. Weak Radiation Losses
7. Dust & Snow Losses

[L4]

A
  1. 4% to 10%
  2. 1% to 3%
  3. 5% to 20%
  4. 1% to 3%
  5. 0% to 80%
  6. 3% to 7%
  7. 0% to 2%

[L4]

50
Q

ENGY-775

What is the equation for Solar PV energy calculation?

[L4]

A

E = (A)x(r)x(H)x(PR)

[L4]

Alternative Energy Systems (6 decks)

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