Chapters 1-4

Question 1

Home Energy Rating The Energy Rater Inspects:

Answer 1

1. Insulation levels
2. Window efficiency
3. Heating and cooling systems
4. Air leakage

Question 2

Home Energy Rating The Energy Rater’s report (HERS) includes…

Answer 2

1. Home’s Energy Rating (Zero to 100; low is good)
2. Estimate of annual energy use
3. Estimate of annual energy cost

Question 3

Home Energy Rating The Energy Rater’s Report Recommends…

Answer 3

1. Energy Efficient Improvements
2. Costs
3. Savings
4. Expected payback times

Question 4

Fannie Mae

Answer 4

• Federal National Mortgage Association Private, shareholder-owned corporation
• Set up by congress to keep money flowing to mortgage market
• Purchases mortgages from lenders to ensure funds are available
• Placed under power of Federal House Finance Agency in 2008

Question 5

EEM?

Answer 5

Energy Efficiency Mortgage

Question 6

REEIL

Answer 6

Residential Energy Efficiency Improvement Loan

Question 7

Freddie Mac

Answer 7

Federal Home Mortgage Loan Corporation Secondary Mortgage Market:

1. Buys mortgages from lenders
2. Packages them as securities
3. Sells them as guaranteed investments to insurance companies and pension funds

Placed under power of Federal House Finance Agency in 2008 More long term than short term

Question 8

Is solar allowed in this community?

Answer 8

1. Contact local building department
2. Study local building codes
3. Ask local contractors
4. Check HOAs

Question 9

Livability Questions of home design

Answer 9

1. # of bedrooms?
2. # of bathrooms?
3. Special rooms?
4. Special storage/rec (RV?, pool?)?
5. Garage
6. Location
7. Lot
8. Available services (water?/sewer?/cable?/elec?)
9. Architecture
10. Solar orientation
11. Lot costs

Question 10

Residential Construction Process (steps 1-5)

Answer 10

1. Preconstruction prep
2. Excavation
3. Pest control
4. Concrete
5. Waterproofing

Question 11

Residential Construction Process (steps 6-10)

Answer 11

6. Framing
7. Roofing
8. Plumbing
9. Electrical
10. HVAC

Question 12

Residential Construction Process (steps 11-15)

Answer 12

11. Siding/masonry
12. Doors and windows
13. Insulation
14. Drywall
15. Trim

Question 13

Residential Construction Process (steps 16-20)

Answer 13

16. Painting
17. Cabinetry
18. Flooring and tile
19. Gutters and downspouts
20. Landscaping and driveways

Question 14

3 means of heat transfer

Answer 14

1. Conduction
2. Convection
3. Radiation

Question 15

3 solar design techniques

Answer 15

1. Direct gain
2. Indirect gain
3. Isolated gain

Question 16

Direct gain

Answer 16

Sunlight enters south-facing windows and is absorbed by dark (or water-filled) floors/walls/thermal mass. At night, the sunless, cooling room is warmed by these.

Question 17

Indirect gain

Answer 17

Interior walls/thermal mass are placed very close to exterior windows to block light and absorb heat.

Question 18

ARRA

Answer 18

American Recovery and Reinvestment Act (Federal Program to bring down solar costs and create solar jobs)

Question 19

Incentives and Paybacks

Answer 19

1. Energy Policy Act Renewable Energy Certificates (RECs)
2. State and local rebates and buy-downs (naseo.org, dsireusa.org)
3. Federal and state tax incentives

Question 20

Direct Gain Diagram

Answer 20

Question 21

Indirect Gain Diagram

Answer 21

Question 22

Isolated Gain Diagram 1

Answer 22

Question 23

Isolated Gain Diagram 2

Answer 23

Question 24

ARRA

Answer 24

American Recovery and Reinvestment Act

(Federal Program to bring down solar costs and create solar jobs)

Question 25

Incentives and Paybacks

Answer 25

1. Energy Policy Act Renewable Energy Certificates (RECs) 2. State and local rebates and buy-downs (naseo.org, dsireusa.org) 3. Federal and state tax incentives

Question 26

Solar Diagram

Answer 26

Question 27

Isolated Gain

Answer 27

Sunspace (solarium) uses solar energy to warm a room Greenhouse on your house Requires ventilation (too hot and too cold)

Question 28

Solar Noon

Answer 28

9 am to 3 pm

Question 29

Home Orientation

Answer 29

Rectangle with long side running east/west

Question 30

4 Components of Energy Efficient Design

Answer 30

1. Well-contructed/tightly sealed thermal envelop 2. Energy-efficient doors/windows/appliances 3. Properly-sized, high-efficiency heating and cooling systems 4. Controlled ventillation

Question 31

Windows

Answer 31

South-facing? High Solar Heat Gain Coefficient (SHGC) North-, East-, West-facing? Low Solar Heat Gain Coefficient

Question 32

Appliances with Energy Star label

Answer 32

Exceed minimum efficiency requirements

Question 33

Appliances that commonly use most energy

Answer 33

* water heaters * clothes washers * clothes dryers * dishwashers * refridgerators

Question 34

Solar Tubes

Answer 34

Vertical tubes of reflective material installed vertically between the home's exterior roof and interior ceiling

Question 35

Thermal Envelope

Answer 35

* All that shields living space from the outdoors: walls, roof, insulation, vapor retarders, windows weather stripping * Designed to keep interior air in and exterior air out * Good insulation has high R value

Question 36

Vapor Retarders

Answer 36

* Minimize condensation of water vapor on exterior walls * Colder climates: water vapor condenses on the inside of exterior walls * Humid climates: water vapor condenses on the outside of exterior walls * Condensation contributes to heat loss, mildew and other problems

Question 37

Heating and Cooling

Answer 37

Homes with good envelopes and need less heating and cooling

Question 38

Ventillation

Answer 38

Important for health, bad for energy efficiency Energy Recovery Ventilators (ERVs) can extract 70% of energy from stale air being cycled out of the home Roof Ridge Vents: vents hot attic air out without letting water in