Discuss Electricity and energy storage

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Instructions

Answer the following questions.

Question 1

Emissions arising from the supply of electricity, fuels and materials used on-site are called _______ ______.

Question 2

Industry is easier to decarbonize than buildings.

a) True

b) False

Question 3

Energy usage in buildings, industry and transport accounts for what percentage of global final energy demand:

a) 47%

b) 67%

c) 87%

Question 4

Limiting global warming to 2 ^oC will require reducing emissions by 2050 by almost:

a) 40%

b) 60%

c) 80%

d) 90%

Question 5

The percentages of the final energy demand from buildings, industry, and transport, respectively, are approximately:

a) 33%, 25%, 25%

b) 20%, 40%, 25%

c) 33%, 33%, 15%

Question 6

The percentage of the total global electricity usage that lighting accounts for is:

a) ~ 10%

b) ~ 20%

c) ~ 30%

d) ~ 40%

Question 7

A passive design is one that uses the local ______conditions and appropriate materials to help maintain comfortable temperatures.

Question 8

Buildings with a large thermal mass:

a) closely follow the external temperature.

b) are most useful in regions where there is a large difference between day and night-time temperatures.

c) can be less effective than those without at high latitudes.

Question 9

On one day during the period from 00:00 to 11:59 the average ambient temperature was 12.3^oC, and from 12:00 to 23:59 it was 13.1^oC; the base temperature was 15.5^oC. What was the number of degree-days for that day?

a) 1.4

b) 2.8

c) 5.6.

Question 10

How much of the UK housing stock will be around in 2050?

a) 10%

b) 30%

c) 50%

d) 70%

Question 11

Energy intensity and materials intensity are each improved by 10% throughout industry. What percentage improvement in carbon intensity is required to reduce emissions by 50%?

a) 17%

b) 33%

c) 62%

Question 12

_____ _____ is when the production of a product is transferred to another country, where production costs are less and limits on carbon emissions are less stringent.

Question 13

The efficiency by which materials are used can be improved through ‘reduce, ___,and ___’.

Question 14

Five options for fuel switching are ____ ____ ____ ____ and ____.

Question 15

Emissions from the iron and steel industry, and from cement production account for over what percentage of the direct emissions from industry?

a) 35%

b) 55%

c) 70%

Question 16

Match the following reactions to their names.

CH₄ + H₂O → 3H₂ + CO	Sabatier process Haber process Steam reforming Water-gas shift reaction
CO + H₂O → CO₂ + H₂	Sabatier process Haber process Steam reforming Water-gas shift reaction
CO₂+4H₂ → CH₄ + 2H₂O	Sabatier process Haber process Steam reforming Water-gas shift reaction
N₂ +3H₂→ 2NH₃	Sabatier process Haber process Steam reforming Water-gas shift reaction

Question 17

Alternatives to making steel with coke are to use _____, _____, or _____.

Question 18

Which of the following statements about carbon capture and storage in industry are true?
Please select all that apply.

a) Storages sites are readily available

b) Transport costs are significant

c) Economies of scale are possible

d) Integration will generally be straightforward

e) Negative emissions are possible

Question 19

Light goods vehicles (LDVs) and trucks account for what percentage of the global energy use in transport?

a) 33%

b) 43%

c) 53%

d) 63%

Question 20

Match the following means of lowering the carbon intensity to the modes of transport that would be most effective.

Cars	electrification advanced biofuels fuels from power-to-gas
Trucks	electrification advanced biofuels fuels from power-to-gas
Planes	electrification advanced biofuels fuels from power-to-gas

Question 21

_____ and _____ journeys will reduce emissions from transport.

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