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LEED Green Associate > Energy & Atmosphere > Flashcards

Energy & Atmosphere Flashcards

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1
Q

What are the 4 prerequisites for EA category?

A
  1. Fundamental commissioning of building energy systems
  2. Minimum energy performance
  3. Building-level energy monitoring
  4. Fundamental refrigerant management
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2
Q

What is commissioning?

A

The process of verifying and documenting that a building and all its system and assemblies are planned, designed, installed, tested, operated, and maintained to meet owner’s project requirement (OPR)

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3
Q

What is HVAC&R?

A

Heating, Ventilating, Air Conditioning, and Refrigeration

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4
Q

What is the average payback and typical cost of commissioning new buildings?

A

Payback 4.8 years

Typical cost $1/sq ft

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5
Q

What is the average payback of retro-commissioning, median cost, and its function?

A

Average payback 0.7 years
Median cost $0.27/ sqft
For commissioning existing building

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6
Q

What are the 4 benefits of Commissioning Agent CxA?

A
  1. Minimize or eliminate design flaws
  2. Avoid construction defects
  3. Avoid equipment malfunction
  4. Ensure preventative maintenance is implemented during operations
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7
Q

What is the standard baseline of energy performance?

A

ASHRAE 90.1-2010

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8
Q

The International Green Construction Code (IGCC) includes what as an alternative compliance path for energy standard?

A

ASHRAE 189.1

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9
Q

A study by New Buildings Institute says that LEED certified buildings use how much less energy?

A

24%

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10
Q

What are building envelopes?

A

Walls, roofs, windows, and floor

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11
Q

What factors are affecting energy performance, demands, and requirements?

A
  1. Site conditions, such as heat island reduction
  2. Building orientation
  3. Water requirements for heating and cooling
  4. Roof design, SRI level
  5. Building envelope thermal performance
  6. Light fixture types
  7. Generating onsite renewable energy
  8. Commissioning a building
  9. Educating occupants
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12
Q

What does passive design capitalize on?

A

Radiation, conduction, absorption, convection

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13
Q

What are the uses of Regulates Energy?

A
  1. Lighting - interior & exterior
  2. HVAC
  3. Service water for domestic and space heating purpose
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14
Q

What are the uses of Process Energy?

A

Computers, office equipment, kitchen refrigeration, cooking, washing & drying machines, elevator & escalator, lighting power allowance integrated into equipmet

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15
Q

What base are refrigerants evaluated on?

A

ODP Ozone Depletion Potential

GWP Global Warming Potential

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16
Q

CFC & HCFC

A

CFC Cholofluoro Carbons, totally prohibited

HCFC Hydrochlorofluoro Carbons, to be phased out according to Montreal Protocol

17
Q

What is HFC?

A

Hydrofluoro Carbon, has GWP but no ODP

18
Q

What is the average rating of ENERGY STAR Portfolio Manager?

A

50

19
Q

What is the average rating of LEED certified buildings on ENERGY STAR Portfolio Manager?

A

68

20
Q

What are the 4 strategies to satisfy Energy Demand?

A
  1. Establish design and energy goals
  2. Size the building appropriately
  3. Use free energy
  4. Insulate
21
Q

Energy standard for LEED EA category beside ASHRAE 90.1

A

California’s Title 24

22
Q

What are the 4 components of the EA category?

A
  1. Energy demand
  2. Energy efficiency
  3. Renewable energy
  4. Ongoing energy performance
23
Q

What is another name of Demand Response (DR) event?

A

Curtailment Event

24
Q

What is Demand Response (DR)?

A

Encourage electricity customers to reduce usage during the peak hours. Helping utilities to optimize supply-side, energy generation and delivery system

25
Q

What are the unit measurements of energy?

A

Electricity - kw/h
Natural gas - therms
Liquid fuel - gallons

26
Q

How is the majority of building’s energy being used for?

A

Space heating and lighting

27
Q

What are the 6 strategies to address energy efficiency?

A
  1. Address the envelope
  2. Install high-performance mechanical system
  3. Use high-efficient infrastructure and traffic signals
  4. Capture efficiencies of scale
  5. Use energy simulation
  6. Monitor and verify performance
28
Q

What is the right way of doing energy simulation?

A

Model the whole building with regulated energy uses

29
Q

What is efficiencies of scale?

A

District system heating and cooling, instead of each building

30
Q

What is high performance mechanical systems and appliances?

A

Determine the trade-offs of the up-front costs ba the operating costs by conducting a life-cycle cost analysis

31
Q

What are the 2 strategies to address renewable energy and reduce the use of fossil fuels?

A
  1. Generate on-site renewable energy

2. Purchase green power or Renewable Energy Credits (REC) - tradable commodities

32
Q

How can building owners purchase green energy?

A

From a Green-e certified provider

33
Q

What are the 6 types of renewable energy sources?

A

Photovoltaic panels, wind turbines, geothermal, biomass, low-impact hydropower

34
Q

What are the 4 ways to ensure optimal energy performance of a LEED-certified project?

A
  1. Adhere to the OPR
  2. Provide staff training
  3. Conduct preventative maintenance
  4. Create incentives for occupants and tenants
35
Q

4 sequential steps to reduce energy use within the projects:

A
  1. Reduce demand
  2. Employ means to use energy efficiently
  3. Assess renewable energy opportunities on and off site
  4. Monitor use to ensure that the building is operating and maintained accordingly
36
Q

What category is mostly emphasized by LEED rating system?

A

Energy & Atmosphere

LEED Green Associate (7 decks)

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