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!