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WorksheetsIVC - Energy Storage System
Total questions: 60
Worksheet time: 20mins
Name
Class
Date
1.
Which one is not form of energy storage technology?
a)
Pump Storage
b)
Flywheell
c)
Solar Cell
d)
Ultracapacitor
2.
Solar Power and Wind Power are always available!
a)
False
b)
True
3.
Not the benefits of improved energy storage technology.
a)
New financial income inflation
b)
Grid Security
c)
Greater us of clean electricity
d)
Competitiveness of clean energy
4.
Not the form of electrical / electrochemical energy storage.
a)
Flywheel
b)
VRB
c)
Battery
d)
Ultracapacitor
5.
Form of electrical energy storage.
a)
Sensible heat storage
b)
Capacitor
c)
Battery
d)
CAES
6.
Flow Batteries are categorized as?
a)
Electrochemical ESS
b)
Electrical ESS
c)
Chemical ESS
d)
Mechanical ESS
7.
Type of Batteries suitable for Energy Management application, except?
a)
Pump Hydro
b)
VRB
c)
CAES
d)
Super Capacitor
8.
In general, the energy density of Lithium Batttery is 3-5 x VLRA battery.
a)
True
b)
False
9.
Which type of battery has the best round trip efficiency?
a)
VLRA
b)
NAS
c)
Li-ion
d)
NI-CD
10.
The most applicable and safe Lithium - ion type of today's application is?
a)
LCO
b)
Lithium Cobalt Oxide
c)
Lithium Ferro Phosphate
d)
NCA
11.
The most expensive raw material of Lithium Batteries, is Nickel!
a)
True
b)
False
12.
Which component has the biggest price drop in BESS for utility applications today?
a)
Developer Margin
b)
Battery Pack
c)
Power Control Systtem
d)
EPC
13.
BESS roles in Ancilary Services are, except
a)
Load Shifting
b)
Power Adding
c)
Renewables firming
d)
Market Price Stabilization
14.
The following are BESS components, except
a)
Power Conversion System
b)
Flow Management Module
c)
Battery Management System
d)
Thermal Management System
15.
Battery configuration from smallest to largest
a)
Cell < Module < Pack < BESS
b)
Module < Cell < BESS < Pack
c)
BESS < Pack < Module < Cell
d)
Pack < Cell < Module < BESS
16.
Common battery cell types, except
a)
Prismatic
b)
Cube
c)
Coin
d)
Pouch
17.
Typical battery pack voltage, except
a)
24 V
b)
12 V
c)
48 V
d)
38V
18.
General recommended batterry working area is between
a)
10 - 90 % SoC
b)
20 - 80% SoC
c)
0 - 100 % SoC
d)
0 - 80 % SoC
19.
Battery initial condition is measured at empty charge
a)
True
b)
False
20.
Battery State of Heath (SOH)means?
a)
time of use / time of manufacturing
b)
actual capacity / nominal capacity
c)
symptoms / condition
d)
measured capacity / deteriorated capacity
21.
There is a difference in the Battery charging/discharging voltage characteristics at the same SoC.
a)
True
b)
False
22.
Hydrogen production using biomass can be processed by ? Except
a)
Biological
b)
Gasification
c)
Pyrolysis
d)
Electrolysis
23.
If power plants are operated with coordination although not in the same location. It's categorized as:
a)
Virtual Power Plant
b)
Co-location
c)
Full Hybrid
d)
Coordinated
24.
A 100Ah battery in full charge condition is discharged by C/20 current rate. How long it takes to empty state?
a)
20 hours
b)
100 hours
c)
5 hours
d)
2 hours
25.
The higher discharge current on a battery, then the energy that can be extracted is …
a)
higher
b)
same
c)
lower
d)
unlimited
26.
Commercial cell format cannot be found in which format?
a)
Cylindrical
b)
Pouch
c)
Coin
d)
Cube
27.
What does CCCV stand for?
a)
Changing-Capacity then Changing-Voltage
b)
Constant-Capacity then Constant-Voltage
c)
Constant-Current then Constant-Voltage
d)
Changing-Current then Changing-Voltage
28.
Which of these that is not the source of error on SOC estimation based on basic Coulomb-counting method?
a)
Bad initial SOC estimation at t=0
b)
Bad actual capacity estimation of the battery
c)
Noisy voltage measurement
d)
Noisy current measurement
29.
Which BMS topology doesn't use master/slave control & communication principles?
a)
Centralized Wired
b)
Modular Distributed
c)
Modular Wired
d)
Modular Banked
30.
What's the main cause of the infamous "duck curve" in California?
a)
Windy weather in the afternoon
b)
Widespread avian flu disease
c)
High adoption of solar PV power with no storage system
d)
High solar radiation in the morning
31.
Which electricity consumer has the least fluctuating load?
a)
Industrial
b)
Commercial
c)
Residential
d)
Business
32.
Load Factor =
a)
Average Load / Peak Load
b)
Peak Load / Average Load
c)
Peak Load / Intermittent Load
d)
Intermittent Load / Average Load
33.
Which one from the following Li-Ion chemistries has a better energy density?
a)
NMC
b)
LFP
c)
LMO
d)
LCP
34.
Which one is not considered as Variable Renewable Energy
a)
Solar PV
b)
Wind
c)
Microhydro
d)
PV + Battery
35.
The following are types of thermal energy storage, except
a)
Sensible
b)
Latent
c)
Thermoelectric
d)
Elastic
36.
Sensible heat is followed by changing of material phase
a)
True
b)
False
37.
Energy stored in latent heat is usually greater than sensible heat
a)
True
b)
False
38.
Solar thermal water heater is a type of:
a)
Sensible heat storage
b)
Latent heat storage
c)
Thermochemical heat storage
d)
Thermoelectric heat storage
39.
A general drawback of sensible heat storage?
a)
expensive material
b)
low heat capacity
c)
slow heat transfer
d)
smaller tank size
40.
Energy stored in PCM >> in water
a)
True
b)
False
41.
Hydrogen gas (H2) is the most abundant gas in the universe
a)
True
b)
False
42.
Hydrogen can be obtained from natural gas using a process called?
a)
Carbon capture
b)
Gasification
c)
Reforming
d)
Electrolysis
43.
The following are hydrogen isotopes, except
a)
Deuterium
b)
Tritium
c)
Ethereum
d)
Protium
44.
If Hydrogen is combusted with air it is completely emission free
a)
True
b)
False
45.
A drawback of hydrogen as energy storage
a)
The highest energy content per unit mass
b)
Low density
c)
High heating value
d)
Non-polluting fuel when it is burn with oxygen
46.
The following is physical-based hydrogen storage, except
a)
Compressed H2
b)
Liquid H2
c)
Cryo
d)
Physical Sorption
47.
Various hydrogen storage technologies , except.
a)
Cryo-compressed hydrogen storage
b)
Metal hydride hydrogen storage
c)
Liquified hydrogen storage
d)
Gasification hydrogen storage
48.
Hydrogen chemically interacts with metals and metal alloys to form?
a)
Zeolit
b)
Metal organic
c)
Metal Hydrogen
d)
Metal hydrides
49.
Cryogenic method is material based hydrogen storage.
a)
True
b)
False
50.
Liquifying hydrogen is done at -2500 C temperatures.
a)
True
b)
False
51.
The general draw back using Metal hydride hydrogen storage is?
a)
Time variant
b)
40% efficiency
c)
kinetics of the hydrogenation is slow
d)
mechanical of the hydrogenation is slow
52.
Generally, in hydrogen liquifaction, 40% of energy content can be lost in the process.
a)
True
b)
False
53.
Given measured peak power consumption at 55kW, and average power consumption at 35kW, what is the load factor?
a)
0.63
b)
0.42
c)
0.74
d)
0.58
54.
if given depth of discharge at 65%, which one of the following statements is correct?
a)
the condition is beyond the safety operating area
b)
the battery SoC is at 35%
c)
the battery SoH is at 35%
d)
the battery is overdischarged by 15%
55.
how one calculates storage capacity of a latent heat storage?
a)
m x cp x delta T
b)
m x delta h
c)
m x cp x delta h
d)
m x delta T
56.
If space is restrictive and heat transfer performance is not a priority, which thermal energy storage is the choice?
a)
SHS
b)
LHS
c)
TCS
d)
HRS
57.
Considering a developing country grid, which side of energy trilemma can it be mapped into?
a)
closer to the economic value corner and on the side of surety
b)
closer to the surety corner and on the side of sustainability
c)
closer to sustainability corner and on side of surety
d)
closer to the surety corner and on the side of sustainability
58.
The following are microgrid modeling and simulation purposes, except
a)
Performance prediction
b)
Control design
c)
System sizing
d)
Weather forecasting
59.
Moving peak load to another time of day is a demand side management called?
a)
Load shifting
b)
Valley filling
c)
Peak clipping
d)
Load shaping
60.
Balance of power control belongs to which layer in micro grid control hierarchy?
a)
Tertiary control
b)
Secondary control
c)
Primary control
d)
Supervisory control
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