Page 102 - CAPE Green Engineering Syllabus 2016.docx_Neat

-11- 02165020/CAPE/KMS 2015 SPEC

GREEN ENGINEERING
UNIT 1 - PAPER 02
KEY AND MARK SCHEME

Question 5. (continued)

S.O Suggested Response Mark Marks
Allocation KC AK PS

1:3:1 (b) (ii) Economies of scale refers to the 2 4
decrease in unit cost of a product 2 2
or service resulting from large-
scale operations, as in mass 1
production. By purchasing larger 1
quantities, the average costs will
be lowered (this is because of lower
transport cost). The transition from
the use of non-renewable to
renewable energy requires a high
initial cost, but that cost can be
lowered if the units (for example
photovoltaic) are bought in bulk.

1:3:4 (iii) 1. High initial cost for
installation.

2. Lack of incentives from
government.

3. High duties of renewable energy
in some countries in the
Caribbean.

4. Renewable energy projects are
most of the time private driven
without the influence of
national policy.

Any two