Final Exam

Question 1

Determine the per unit (or per kWh) cost of production of electrical energy

Answer 1

Economics on Power Generation

Question 2

Elements (4)

Answer 2

1. Fixed Elements
2. Energy Elements
3. Customer Elements
4. Investors Profit/ROI

Question 3

Used to start the enterprise

Answer 3

Fixed Elements

Question 4

Sometimes called running cost, operating expenses to generate power/energy.

Answer 4

Energy Elements

Question 5

Cost to bring power to users/customers

Answer 5

Customer Elements

Question 6

Fixed Elements (5)

Answer 6

1. Power Plant Lands, Bldg. Structures, Etc
2. Primary Distribution Lines, Substations including supports
3. Management, Administrative Staff
4. Depreciation
5. General Maintenance, required whether the plant is operational or not

Question 7

Energy Elements (4)

Answer 7

1. Fuel
2. Labor or Operation
3. Facilities, Water, Oil
4. Maintenance required when the plant is in operation only

Question 8

Customer Elements (4)

Answer 8

1. Secondary Distribution System, including service drops and meters
2. Personnel for Lines, meter readers, collection of bills
3. Advertisements
4. Franchise

Question 9

Fixed Elements are dependent on ___________.

Answer 9

the size of the enterprise

Question 10

Energy Elements are dependent on ____________.

Answer 10

the volume/level of generated kW or kWh

Question 11

Customer Elements are dependent on ___________.

Answer 11

the number of customers

Question 12

Rate at which electric energy is supplied to a customer

Answer 12

Rate (or Tariff)

Question 13

Types of Tariff (7)

Answer 13

1. Uniform Rate Tariff
2. Flat Rate Tariff
3. Block Rate Tariff
4. Two-part Tariff
5. Maximum Demand Tariff
6. Power Factor Tariff
7. Three-part Tariff

Question 14

Fixed rate per kWh

Answer 14

Uniform Rate Tariff

Question 15

Where different types of consumers are charged at different uniform rates.

Answer 15

Flat Rate Tariff

Question 16

Also called “room rates” when a block of energy is charged at a specified rate and the succeeding blocks of energy are charged at progressive reduced rates.

Answer 16

Block Rate Tariff

Question 17

Also called “2-charge rate” change on the basis of maximum demand of the energy consumed.

Answer 17

Two-part Tariff

Question 18

Similar to 2-part Tariff with only difference is that the maximum demand is actually measured installing a maximum demand meter in the premises of the consumer. It is usually applied to large users.

Answer 18

Maximum Demand Tariff

Question 19

Power factor of consumer’s load is taken into consideration.

Answer 19

Power Factor Tariff

Question 20

Also called “3-charge rate” or “Doherty Rate”. Total charge is split into three rates.

Answer 20

Three-part Tariff

Question 21

Its function is to transform electrical solar energy into electricity.

Answer 21

Solar Panels

Question 22

Average size of solar panels.

Answer 22

5.4x3.25ft

Question 23

Convert direct current (DC) flowing from your solar panels into alternating current (AC) your home uses.

Answer 23

Solar Inverter

Question 24

A utility rate structure that requires your utility to purchase the excess solar energy your solar panels produce.

Answer 24

Net Metering

Question 25

Regulates charging. Prevents batteries from overcharging and blocks the flow of reverse current.

Answer 25

Charge Controller

Question 26

Device that store energy generated from solar panel.

Answer 26

Solar Battery

Question 27

3 Types of PV System

Answer 27

1. On Grid PV System
2. Off Grid PV System
3. Hybrid PV System