Home Energy Audit and Critical Analysis Report - University Project

This report presents a detailed home energy audit conducted on a residence, analyzing the energy consumption of various appliances. Part A focuses on the audit, listing appliances, their consumption rates, and calculating daily and monthly energy usage and costs. The analysis reveals significant energy consumers like heaters, freezers, and water heating systems. Part B explores energy loss management strategies, including addressing air leakage, insulation, and moisture control. Furthermore, the report suggests the implementation of solar panels as a renewable energy source for high-consumption appliances, providing data on panel sizes, output, and potential savings. The conclusion summarizes the findings and reinforces the importance of energy efficiency and sustainable practices. The report includes tables and charts illustrating energy consumption and cost breakdowns, providing a comprehensive overview of the home's energy profile and potential improvements.

Running Head: HOME ENERGY AUDIT AND CRITICAL ANALYSIS
Energy Management and Efficiency
Home Energy Audit and Critical Analysis
Student Name:
Student ID:
Course Name:
Course ID:
Faculty Name:
University Name:

HOME ENERGY AUDIT AND CRITICAL ANALYSIS 1
Table of Contents
Introduction......................................................................................................................................2
Part A: Home Energy Audit............................................................................................................2
Audit Assumptions......................................................................................................................3
Energy Consumption Analysis....................................................................................................3
Part B: Energy Loss Management...................................................................................................1
Reduction of Energy Loss...........................................................................................................1
Air Leakage.............................................................................................................................1
Insulation.................................................................................................................................1
Moisture Control......................................................................................................................1
Water Heating..........................................................................................................................1
Suggested Renewable Technology..............................................................................................1
Conclusion.......................................................................................................................................1
References........................................................................................................................................2
List of Figures
List of Tables

HOME ENERGY AUDIT AND CRITICAL ANALYSIS 2
Introduction
Energy management is imperative for a sustainable living. The effective management of energy
not only impacts the growth aspects of a country but the whole planet. The management of
energy begins at smaller scale and carried out at larger scale. The smaller scale can be referred to
homes, small companies, which later extend to big companies and society as a whole. The
combination of efficient energy management at all the levels collectively converts into
sustainable future for everyone. Apart from saving electricity consumption at every level, the
effective management of energy comprises of elements such as installation of tools and
techniques that can act as the alternative sources of energy. The motive behind the energy saving
or application of alternative energy source can be dual, namely, saving costs and increasing the
life of the planet through the use of renewable energy sources.
The current paper is focused towards analyzing the consumption of energy in the author’s
residence. An energy audit has been carried out for various appliances and overall energy
consumption was calculated. The results are discussed in the Part A. Furthermore, some methods
have been suggested to reduce the current level of energy consumption and the renewable
technology that can be utilized to replace the current energy source for various appliances in Part
B of this paper. In the final chapter, a conclusive remark has been presented based on the energy
audit and suggested alternative solutions.
Part A: Home Energy Audit
There are various appliances that are used at present in the residence for various purposes and
utilities. The table given represents the list of appliances currently operational, number of each
appliance and the rate of power consumption of each unit.
Appliance Initial
Number of
Items
Rate of Power
Consumption (per
unit in watt)
Ceiling Fan C1 4 75
Cell Phone Charger C2 6 3
CFL Light Bulb C3 9 60
Clothes Dryer C4 1 2000
Clothes Washer C5 1 500
Cooking Stove Top C6 1 1000
Desktop Computer D1 1 100
Dishwasher D2 1 1800
Electric Aroma
Lamp E1 3 12
Electric Water
Boiler E2 1 4000

HOME ENERGY AUDIT AND CRITICAL ANALYSIS 3
Freezer F 1 250
Game Console G 1 90
Hair Dryer H1 2 1000
Heater H2 3 1000
Iron I 1 1100
Laptop L1 4 60
Microwave Oven M1 1 1200
Television T1 2 75
Water Heating W1 1 4000
Wi-Fi Router W2 1 15
Audit Assumptions
Given below are the assumptions that have been used in this study:
1. The rate that is paid in pence per kWh is 13.75.
2. The total days in a month taken as 30.
3. The energy consumption considered equal on all days.
Energy Consumption Analysis
The consumption analysis has been conducted on the appliances as per the data shown in the
Table 2 (next page). Several factors were considered while reaching the total consumed energy
and cost incurred on per day and monthly basis. The factors that were considered are:
1. Rate of power consumption of each appliance (as given on each appliance’s product
specification)
2. Total number of items for each appliance
3. Per day use of each appliance on hourly basis
4. Per day use of appliance (combined) on hourly basis
5. Monthly and per day consumption of energy in hour
6. Monthly and per day cost incurred on each appliance in pence.
The Table 2 is followed by the two charts – Chart 1 and 2 – showing the cost incurred and hours
used for each product. The monthly data shows that the Heater (1080kWh/ £148.50), Freezer
(540kWh/ £74.25), Water Heating (360kWh/ £49.50), Hair Dryer (240kWh/ £33.00), Iron
(198kWh/ £27.22), and Laptop (115.2/ £15.84) are the major energy and cost consuming
appliances.

Running Head: HOME ENERGY AUDIT AND CRITICAL ANALYSIS
Appliance
(Initial)
Items Watt Per Day
Consumption
per item(hr.)
Per Day
Consumption
(hr.)
Monthly
Consumption
(hr.)
kWh
used per
day
kWh used
per month
Cost per
day
(pence)
Cost per
Month
(pence)
C1 4 75 5 20 600 1.5 45 20.63 618.9
C2 6 3 10 60 1800 0.12 3.6 1.65 49.5
C3 9 60 12 108 3240 6.48 194.4 89.1 2673
C4 1 2000 1 1 30 2 60 27.5 825
C5 1 500 1 1 30 0.5 15 6.88 206.4
C6 1 1000 1 1 30 1 30 13.75 412.5
D1 1 100 5 5 150 0.1 3 1.38 41.4
D2 1 1800 1 1 30 1.8 54 24.75 742.5
E1 3 12 4 12 360 0 0 0
E2 1 4000 1 1 30 0.14 4.2 1.98 59.4
F 1 250 24 24 720 18 540 247.5 7425
G 1 90 4 4 120 1.08 32.4 14.85 445.5
H1 2 1000 1 2 60 8 240 110 3300
H2 3 1000 12 36 1080 36 1080 495 14850
I 1 1100 2 2 60 6.6 198 90.75 2722.5
L1 4 60 16 64 1920 3.84 115.2 52.8 1584
M1 1 1200 2 2 60 2.4 72 33 990
T1 2 75 8 16 480 1.2 36 16.5 495
W1 1 4000 3 3 90 12 360 165 4950
W2 1 15 24 24 720 0.36 10.8 4.95 148.5
Total 45 18340 137 387 11610 103.12 3093.6 1417.97 42539.1

Running Head: HOME ENERGY AUDIT AND CRITICAL ANALYSIS
The total kW consumption per day of the residence is 103.12 and the monthly consumption is
3093.6. Per day cost of energy is 1417.97 pence, that is, 14.17 pound. The monthly cost of
energy that is consumed in the residence is 425.39 pound. The energy bill that is received from
the electricity department is near to this amount every month that is between 420 pound and 430
pound. The per year energy consumption amounts to 37116 kWh and the cost is £5104.68
The chart below shows the energy consumed by the various appliances in the residence:
C1 C2 C3 C4 C5 C6 D1 D2 E1 E2 F G H1 H2 I L1 M1 T1 W1 W2
0
200
400
600
800
1000
1200
kWh used per month
The chart below shows the energy cost consumed by the various appliances in the residence:
C1 C2 C3 C4 C5 C6 D1 D2 E1 E2 F G H1 H2 I L1 M1 T1 W1 W2
0
2000
4000
6000
8000
10000
12000
14000
16000
Cost per Month (in pence)

HOME ENERGY AUDIT AND CRITICAL ANALYSIS 1
Part B: Energy Loss Management
The section is concerned with identifying the solutions that can be implemented to ensure that
there is less energy loss from the residence. Moreover, the impact on the cost has been discussed
for each of the aspects. The use of solar energy has been suggested in the section concerning the
renewable energy application in this residence.
Reduction of Energy Loss
There are various methods that can be applied to reduce the energy loss from the residence.
Mentioned below are some of the methods that have been identified to be the suitable ones in the
case of the author’s residence:
Air Leakage
Insulation
Moisture Control
Water Heating
Suggested Renewable Technology
The use of solar panels has been suggested as a renewable technology for this residence. The
appliances for which the solar energy will be used are Heater, Freezer, Water Heating, Hair
Dryer, and Iron, as they have been found to be consuming excess conventional energy.
Given below is the data of prices of various solar panel sizes (shown as approximate roof space)
and the estimated annual output of each of them. Moreover, the return from the energy saving
has also been given.

HOME ENERGY AUDIT AND CRITICAL ANALYSIS 2
Figure 1: Source (thecoexperts.co.uk, 2016)
As the combined energy usage of the five items mentioned above in a year is
Conclusion

HOME ENERGY AUDIT AND CRITICAL ANALYSIS 3
References