Esprit Rock

CHAPTER FOUR RESULTS AND DISCUSSION Table 4

CHAPTER FOUR
RESULTS AND DISCUSSION
Table 4.1 Grid power Vs Time
Grid power (kw) Time (s)
0.3 1
0.3 2
0.3 3
0.3 4
0.4 5
0.4 6
0.4 7
0.4 8
0.3 9
0.3 10
0.3 11
0.3 12

Fig. 4.1: Grid Energy Stability Vs Time
Fig 4.1 Shows grid energy stability,the stability was highest at times 4,6,8 and 10 seconds at grid power of 0.4Kw while the least Time are 1,2 and 12 seconds respectively at a gridpower of 0.3Kw.

Table 4.2 Grid Energy Stability Vs Time48

Renewable Energy stability
Time

1.2 1
1.2 2
1.2 3
1.2 4
1.6 5
1.6 6
1.6 7
1.6 8
1.6 9
1.2 10
1.2 11
1.2 12

Fig 4.2 Renewable Energy Stability Vs Time

Fig 4.2 Shows the renewable energy stability vs time. Fig 4.2 Shows that renewable energy is highest at a time of 4,6,8 and 10 seconds while the renewable energy power stability is 1.6kw.

Table 4.3 Comparism between Grid and Renewable Energy Stabilities Vs Time
Grid stability
Renewable Energy stability
Time

0.3 1.2 1
0.3 1.2 2
0.3 1.2 3
0.3 1.2 4
0.3 1.6 5
0.4 1.6 6
0.4 1.6 7
0.4 1.6 8
0.4 1.6 9
0.3 1.2 10
0.3 1.2 11
0.3 1.2 12

Fig 4.3 Comparism between Grid and Renewable Energy Stabilities Vs Time

Fig 4.3 Shows that the critical loads are more stable when renewable energy is used than when grid power is used. Fig 4.3 Shows that at time of 4,6, 8 and 10 seconds the renewable energy power stability is 1.6kw while that of grid power stability is 9.4kw.

Household / Parastatal Energy Consumption Pattern

Appliances Tick if used
Quantity (number)
Power Rating (watt) Time Duration of Daily electricity Consumption (usage) in hours (e.g 19: 00 – 24:00)

Mon
Tue
Wed
Thus
Fri
Sat
Sun
Fridge/Freezer

DVD (CD + Video player)
? 1 5,000w ? ? ? ? ? ? ?
Incandescent lamp

Fluorescent tube
? 1 40w ? ? ? ? ? ? ?
Compact + Fluorescent lamp (CCF)

Light emitting diode (LED)

Television
? 1 25w ? ? ? ?
Simple radio + DVD
? 1 ? ? ? ? ? ? ? ?
Stereo Speaker
? 1 20w ?

? ? ? ? ? ?

Laptop

Water heater
? 1 1000w ? ? ? ? ? ? ?
Computer

Fan
? 2 60w ? ? ? ? ? ? ?
Vacuum cleaner

Air Conditioner

Micro Wave

Gas and electric oven

Food blender/mixer

Coffee maker

Washing Machine

Voltage Regulator
? 1 60w ? ? ? ? ? ? ?
Shaving machine

Water Heater (found in Bathroom)

Others please specify

Fig 4.4 Household / Parastatal Energy Consumption Pattern

Fig 4.4 Shows the household parastal energy consumption pattern. It shows that when the power rating is 1000w the number of quatity used is 1.On the other hand when the rating is 60w the quantity is 1.6