Post on 26-Oct-2014
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SRI LANKA ENERGY SCENARIO
Session for AIESEC in Sri Lanka energy audit program
Energy resources and supply:
Indigenous resources: Biomass, hydro, solar, wind
Global resources: Petroleum, coal, natural gas, nuclear
Sri Lanka has been dependent on Petroleum as their only global energy source but with increasing prices Sri Lanka is compelled look in to other options such as coal, natural gas and nuclear energy.
SRI LANKA ENERGY SECTOR
71%
17%12% Biomass
Petroleum
Electricity
Energy Consumption in Industry by Source in 2007(Total 2,111.0 TOE)
80%
9% 11%Biomass
Petroleum
Electricity
Energy Consumption in Household, Commercial & others by Source in 2007
(Total 3,987.8 TOE)
Energy Consumption by Sector in 2007
(Total 8,233.0 TOE)
26%
26%
48%Industry
Transport
HH, Comm, & Other
4
Sector Annual Consumption (2008) GWh
Large & medium (Industry & Commercial) 3775
Small (Industry & Commercial) 1229Religious 49Domestic 3230Street Light 133Total 8416
45%
15%1%
38%
2%Large & medium (Industry & Commercial)
Small (Industry & Com-mercial)
Religious
Domestic
Street Light
Electricity Consumption by Sectors
5
Electricity Consumption by Industrial and Commercial Sectors
Forces1%
Water 4%
Textile2%
Garments10%
Rice0.2%
Rubber7%
Steel4%
Comunication1%
Hotels4%
Hospitals3%
Ice Making1%
Buildings7%Tea
4%Ceramic
2%
Food & Bev3%
Packaging2%
Cement3%
Others42%
6
Electricity Consumption by Energy Service in a Typical Office Building
Water pumping
0.32% Lighting15.97%
Lifts2.17%
Air Conditioning
77.54%
Office Equipments
& Others4%
Refrigerator51%
Lights8%
TV13%
Rice Cooker12%
Water Pump4%
Blender1%
Iron4%
Others7%
Electricity Consumption by Energy Service in a Typical Household
UNDERSTANDING UTILITY SUPPLY
12.5kV
132/ 220 kV
11/ 33kV
400V, 3 ph.
230V, 1 ph.
2.5% Tx loss 10 – 12 %
Dist. loss
ELECTRICITY TARIFF
Peak demand Electricity units (kWh)
Reschedule loads Work process planning Machine inter – locking systems
Turn off non – essential loads Signaling mechanism when the max. demand
is reached Automated/ manual shutdown of least priority
equipment Operation of DG sets during max. Demand
hours
MAX. DEMAND CONTROL
A plant was observed to have a peak kVA demand of 280 at a 0.72 power factor. Calculate the size of the capacitor bank required to improve this power factor to 0.95?
POWER FACTOR IMPROVEMENT
280kVA
= Ɵ
193.85kVar
201.6kW
212.21kVA
201.6kW
= Ɵ66.25kVar
Size of the cap. Bank = 193.85 – 66.25 = 127.60 kVar
Analysis of economic feasibility of operating DG set during max. demand hours
Finding the best location to install a capacitor bank
What are multi stage capacitor banks? What are automatic power factor controllers?
FOR YOUR THOUGHT
Thank you!