Eskom Energy Efficiency Programmes

Monkwe Mpye

Eskom DSM Manager

Overview

• Introduction• DSM strategy• Eskom energy efficiency

programs– CFLs– SWH– Energy efficient electric motor

Demand Profiles

22000

24000

26000

28000

30000

32000

34000

36000

1 3 5 7 9 11 13 15 17 19 21 23 1 3 5 7 9 11 13 15 17 19 21 23

Time

MW

De

ma

nd

Winter 2007

Summer 2007

Evening peak-to-date: 35 931 MW (14th July 2008) !!!

Over the Years?

Residential Sector DSM 3-Year Plan

5

• The most cost effective technologies are Energy Efficient Lighting (CFLs), Aerated Showerheads and Smart Metering (limited to 20 Amps)

• Household Cooking conversion to gas is primarily constrained by the cost and availability of gas.

• Solar Water Heating (SWH) is constrained by lack of supplier capacity and higher costs.

Notes

Source: Avoided Generation Cost Model; Team Analysis

1.

Key:

Bubble Size: GWh Savings

Incentivised Programmes

Priority Areas

Commercial Sector DSM 3-Year Plan

6

• All technologies within the Commercial Sector are cost efficient.

Notes

Note: Scale not standardised relative to other sectorsSource: DSM Cost Model; Team Analysis

Key:

Bubble Size: GWh Savings

Incentivised Programmes

Priority Areas 1.

Industrial Sector DSM 3-Year Plan

7

• The Total Avoided Costs and the Project Costs per kWh for the Industrial Sector initiatives are nearly identical.

• Motor system efficiency initiatives however provide most MW savings and should therefore be the primary focus area of the sector.

Notes

Note: Scale not standardised relative to other sectorsSource: DSM Cost Model; Team Analysis

Key:

Bubble Size: GWh Savings

Incentivised Programmes

Priority Areas 1.

CFL Programs

2004/2005: 5 mil (national)

2006: 5.3 mil (CT) 2.5 mil (national)

2007: 4.5 mil (national)

2008/2009: 16.8 mil (national)

1999: Bonesa/Eskom/GEFCustomer education, advertising, and marketing.

2008: 0.7 milRetail program, nationalGame, PnP, Shoprite

2008: 1.3 milCorporate programLarge customers + Eskom staff

2008: 20 684 CFLsDefence department

CFL Rollouts: 2008/9 and Beyond

Eskom Region Completed

Due for completion

30 Nov.2008/9 Total

2009/10 Planned

Eastern - 2.5 million 2.5 million 0.25 million

Southern - 1.8 million 1.8 million 0.65 million

Western 1.2 million - 1.2 million 0.25 million

North West 1 million 2.3 million 3.3 million 0.5 million

Central - 4.2 million 4.2 million 1.5 million

Northern 1 million 2.8 million 3.8 million 5 million

Total 3.2 million 13.6 million 16.8 million 8.15 million

An estimated 15,750 temporary jobs will be created to support the 2008/9 roll out An estimated 15,750 temporary jobs will be created to support the 2008/9 roll out

Solar Water Heater

Rebate process

• Residential customers or developers who buy an accredited system from an accredited supplier and use an accredited installer can claim a rebate from the facilitating auditors

• Criteria apply, the most NB that the electrical geyser be disabled Industrial and commercial customers to be included in programme by end of the year

Progress to date

• 20 accredited SABS tested suppliers and 14 registered distributors • R 1.8-million rebates paid to date – an average of R 4 327 per installation

• Greatest uptake in Gauteng 266 , KwaZulu Natal 86

Business Objective

To replace (or install in series) approximately 900 000 geysers over the 5 years that will result in a saving of approximately 578MW.

Motor Systems• Electric motors ubiquitous in

industry• Globally, motor systems

account for ~40 % of industrial electricity

– SA: ~ 60 %– US: ~ 60 %– India ~ 50 %– Korea ~ 50 %

• Application (SA)– Pumps (largest)– Fan systems– Compressed air systems– Conveyors

Electrochem6,147 GWh

4%

Line Losses10527

7%

Homes & Hostels3,145 GWh

2%

Lighting8,781 GWh

5%

Pumping18,654 GWh

12%Fans

8,679 GWh5%Compressed air

15,040 GWh9%

Processing25,163 GWh

16%

Material Handling16,525 GWh

10%

Other motive3,622 GWh

2%

Process Heating12,541 GWh

8%

Arc Furnace26,447 GWh

16%

Industrial Cooling4,407 GWh

3%

HVAC1,424 GWh

1%

Motor Program General Conditions

• Launched in Nov. 2007• Aim: Replace 5100 motors with Eff 1

type• Estimated savings 2.48 MW• Slow start up• Gaining momentum, 200 motors

replaced to date• Not enough to make the desired impact

The Model

ESKOM DSMProject Manager

Energy Efficient Motor Suppliers

End-usersMetal

Recovery Shops

Facilitating Auditors M&V

ESKOM DSMProject Manager

Energy Efficient Motor Suppliers

End-usersMetal

Recovery Shops

Facilitating Auditors M&V

ESKOM DSMProject Manager

Energy Efficient Motor Suppliers

End-usersMetal

Recovery Shops

Facilitating Auditors M&V

Awareness

Commercial Technical

Thank You!

Comments and Questions

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