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CUSTOMER FORUMPROPOSED NEW ELECTRICITY TARIFFS FOR            JULY 2011       Chief Engineer: Metering, Vending and Tariff...
IMPORTANT NOTES ON THIS PRESENTATION• The format of the tariffs was very recently  changed, following ongoing discussions ...
IMPORTANT NOTE• Council must still consider this draft of tariffs…
THE FORMAT OF THIS PRESENTATION• The presentation is built around graphical  information, providing a technical picture
BACKGROUND
BACKGROUND
BACKGROUND
METER READING PATH - FULL
BRIEF INDICATION ON REVENUE SEGMENT –                  PREPAYMENT• The 3RD biggest segment of customer, at 180 000 custome...
REVENUE SEGMENT – PREPAYMENT EAST
2007-2008-2009-2010 MEGAFLEX: PURCHASES OF ELECTRICITY kWh COSTSR 300 000 000               R0-00: PEAK vs STANDARD vs OFF...
City of Ekurhuleni Percentage Increase in R/kVA and c/kWh:60%            Purchases of Electricity : Jan 2007 till Jan 2011...
Percentage Increases in c/kWh only: July 2006 to Jan 2011    50.0%    40.0%•    30.0%                                     ...
Energy Demand Reduction of 12% by 2015 for SA: via         energy efficiency improvements
11 500 000 000                 Total kWh Purchased11 000 000 00010 500 000 000                                            ...
Tariff D                    Base line Tariff           2011/12 2011/12 2011/12                2011/12                     ...
1000 kVA: Electricity Tariffs: 2011-12: c/kWh v/s Load Factor        R 4.00                                               ...
100 kVA: Electricity Tariffs: 2011-12: c/kWh v/s Load Factor        R 4.50                                                ...
IMPORTANT NOTE• Demand no longer measured in off-peak. NAC…
Tar B Business: Account impact: 3-ph versus 1-ph and various                                        Load FactorsR 30 000R ...
IMPORTANT NOTE• On Tariff B, the capacity should not be  overstated…
ESKOM PURCHASES: DEMAND COMPONENT• Transmission NC + NAC + NMD  =(3.51+7.04+13.35)*1.2671• R30.284 (2011/12 Eskom R/kVA/mo...
Tar B Busines versus Tar B Res c/kWh at various L.F.R 1.10R 1.05R 1.00                                                    ...
TARIFF A vs TARIFF B : 2011/2012R 3 000.00R 2 500.00R 2 000.00             690R 1 500.00R 1 000.00                        ...
(Un)sustainable Increases:-            2010/11    I ncrease   Year 1   Year 2   Year 3   Year 4   Year 5   Year 6   Year 7...
I Thank YouAny Questions?
Energy  sd -4 march 2011
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Energy sd -4 march 2011

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Energy sd -4 march 2011

  1. 1. CUSTOMER FORUMPROPOSED NEW ELECTRICITY TARIFFS FOR JULY 2011 Chief Engineer: Metering, Vending and Tariffs Stephen Delport 4 MARCH 2011
  2. 2. IMPORTANT NOTES ON THIS PRESENTATION• The format of the tariffs was very recently changed, following ongoing discussions with the National Energy Regulator of South Africa• The set of tariffs under discussion here has not yet been considered by Council• It is also not “given” that NERSA will approve the current format
  3. 3. IMPORTANT NOTE• Council must still consider this draft of tariffs…
  4. 4. THE FORMAT OF THIS PRESENTATION• The presentation is built around graphical information, providing a technical picture
  5. 5. BACKGROUND
  6. 6. BACKGROUND
  7. 7. BACKGROUND
  8. 8. METER READING PATH - FULL
  9. 9. BRIEF INDICATION ON REVENUE SEGMENT – PREPAYMENT• The 3RD biggest segment of customer, at 180 000 customers, 7% of income• The segment is under control, but much work is taking place to improve: • Third party vending has been strengthened. • Point of sale, cellular technology, internet vending, etc • Tampering rate is managed • Penalty rate applied and often paid by customer • Tembisa and IMS doing well, although the system is getting old • Protective structure volumes have grown and indicate need for closer management – measures are being put in place • Exciting new technologies to consider
  10. 10. REVENUE SEGMENT – PREPAYMENT EAST
  11. 11. 2007-2008-2009-2010 MEGAFLEX: PURCHASES OF ELECTRICITY kWh COSTSR 300 000 000 R0-00: PEAK vs STANDARD vs OFF-PEAK and kVA R0-00 Peak kWhR 250 000 000 R0-00 Stnd kWh R0-00 Off-Peak kWhR 200 000 000 R0-00 kVAR 150 000 000 2 per. Mov. Avg. (R0- 00 Peak kWh) 2 per. Mov. Avg. (R0- 00 kVA)R 100 000 000 R 50 000 000 R- J FMAM J J A S O N D J FMAM J J A S O N D J FMAM J J A S O N D J FMAM J J A S O N D J
  12. 12. City of Ekurhuleni Percentage Increase in R/kVA and c/kWh:60% Purchases of Electricity : Jan 2007 till Jan 2011 % Increase kVA50% % Increase kWh40%30%20%10% 0%-10%-20%-30%
  13. 13. Percentage Increases in c/kWh only: July 2006 to Jan 2011 50.0% 40.0%• 30.0% % Increase kWh % Eff Increase 20.0% 2 per. Mov. Avg. (% Increase kWh) 2 per. Mov. Avg. (% Eff Increase) 10.0% 0.0% Oct/05 Jan/06 Oct/06 Jan/07 Oct/07 Jan/08 Oct/08 Jan/09 Oct/09 Jan/10 Oct/10 Jan/11 Apr/06 Apr/07 Apr/08 Apr/09 Apr/10 Jul/05 Jul/06 Jul/07 Jul/08 Jul/09 Jul/10 -10.0%
  14. 14. Energy Demand Reduction of 12% by 2015 for SA: via energy efficiency improvements
  15. 15. 11 500 000 000 Total kWh Purchased11 000 000 00010 500 000 000 Series110 000 000 000 Moving Ave 9 500 000 000 9 000 000 000 Jan - Dec Jan - Dec Jan - Dec Jan - Dec Jan - Dec Jan - Dec Jan - Dec Jan - Dec 2003 2004 2005 2006 2007 2008 2009 2010
  16. 16. Tariff D Base line Tariff 2011/12 2011/12 2011/12 2011/12 Increase > 11kV >230/400 V & < = 11kV 230/400 V direct from sub Tariff D-"0%" 2010/11 21.30% 0% 8% 10%PEAK c/kWh 176.700 214.34 214.34 231.48 235.77STANDARD c/kWh 62.00 75.21 75.21 81.22 82.73OFF-PEAK c/kWh 37.40 45.37 45.37 49.00 49.90PEAK c/kWh 65.70 79.69 79.69 86.07 87.66STANDARD c/kWh 43.10 52.28 52.28 56.46 57.51OFF-PEAK c/kWh 34.00 41.24 41.24 44.54 45.37Jun & Jul & Aug NMD R/kVA R 29.00 35.18 35.18 37.99 38.69Sep-May NMD R/kVA R 29.00 35.18 35.18 37.99 38.69NAC R/kVA R 17.40 21.10 21.10 22.79 23.21
  17. 17. 1000 kVA: Electricity Tariffs: 2011-12: c/kWh v/s Load Factor R 4.00 EMM 2011/12 TAR C R 3.50 EMM 2011/12 TOU TAR E <1MVA TOU > 1MVA TAR D 2011-12 R 3.00 R 2.50c/kWh R 2.00 R 1.50 R 1.00 R 0.50 R- 100.… 5.0% 10.0% 15.0% 20.0% 25.0% 30.0% 35.0% 40.0% 45.0% 50.0% 52.0% 55.0% 58.0% 60.0% 62.0% 65.0% 68.0% 70.0% 72.0% 75.0% 78.0% 80.0% 85.0% 90.0% 95.0% 98.0%
  18. 18. 100 kVA: Electricity Tariffs: 2011-12: c/kWh v/s Load Factor R 4.50 EMM 2011/12 TAR C R 4.00 EMM 2011/12 TOU TAR E <1MVA R 3.50 ESKOM NEW 2011-12 R 3.00 R 2.50c/kWh R 2.00 R 1.50 R 1.00 R 0.50 R- 100.… 5.0% 10.0% 15.0% 20.0% 25.0% 30.0% 35.0% 40.0% 45.0% 50.0% 52.0% 55.0% 58.0% 60.0% 62.0% 65.0% 68.0% 70.0% 72.0% 75.0% 78.0% 80.0% 85.0% 90.0% 95.0% 98.0%
  19. 19. IMPORTANT NOTE• Demand no longer measured in off-peak. NAC…
  20. 20. Tar B Business: Account impact: 3-ph versus 1-ph and various Load FactorsR 30 000R 25 000 Series1R 20 000 Series2 Series3 Series4R 15 000 Series5 L.F. 30% 40A up to 150 A 1-ph L.F 20% 40A up to 150A 3-phR 10 000 L.F. 30% 40A up to 150A 1-ph L.F. 40% 40A up to 150A 3-ph R 5 000 R0 40 50 60 70 80 90 100 110 120 130 140 150
  21. 21. IMPORTANT NOTE• On Tariff B, the capacity should not be overstated…
  22. 22. ESKOM PURCHASES: DEMAND COMPONENT• Transmission NC + NAC + NMD =(3.51+7.04+13.35)*1.2671• R30.284 (2011/12 Eskom R/kVA/month) X 103.92 kVA• =R 3,147.17 (Eskom R/kVA/month)
  23. 23. Tar B Busines versus Tar B Res c/kWh at various L.F.R 1.10R 1.05R 1.00 Tar B ResR 0.95 Tar B Bus 40 Amp BusR 0.90R 0.85R 0.80 0.1 0.1 0.2 0.2 0.3 30% 0.4 0.4 0.5 0.5 0.6 0.6 0.7 0.7 0.8 0.8 0.9 0.9
  24. 24. TARIFF A vs TARIFF B : 2011/2012R 3 000.00R 2 500.00R 2 000.00 690R 1 500.00R 1 000.00 New IBT A R 500.00 R 0.00 Number of kWh units
  25. 25. (Un)sustainable Increases:- 2010/11 I ncrease Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7 Year 8Sales 1.55 X 1.2 1.86 2.23 2.68 3.21 3.86 4.63 5.55 6.66Purchases 1.00 X 1.2671 1.27 1.61 2.03 2.58 3.27 4.14 5.24 6.64 1.55 Ratio 1.47 1.39 1.32 1.25 1.18 1.12 1.06 1.00
  26. 26. I Thank YouAny Questions?

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