So Southern uthern Af African rican Po Power wer Po Pool ol - - PowerPoint PPT Presentation

1

1

So Southern uthern Af African rican Po Power wer Po Pool

• l

SAPP SAPP AND AND ISSUES ISSUES OF OF STANDARDISATION STANDARDISATION

By By Eng Eng. . Syd Sydne ney y Zimba Zimba

San Sandto dton, , RSA SA 27 27 Ma March rch 201 2017

2

2

A. . About About SAPP SAPP

3

3

• DR Congo
• Tanzania
• Zambia
• Angola
• Malawi
• Zimbabwe
• Mozambique
• Botswana
• Namibia
• South Africa
• Lesotho
• Swaziland

 12 SADC Member Countries  280 Million people  Average Electricity demand

growth rate 3.2% p.a.

 Consumption 321 TWh  Installed Capacity 59539 MW  Available Capacity 52589 MW  Peak Demand 46748 MW

• 1. SAPP KEY FACTS

4

4

• 2. SAPP DEMAND SUPPLY SITUATION

5

5

0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0

Electricity Access in SADC, %

Electrification Access,% SADC Average Electricity Acess, %

• 3. ELECTRICITY ACCESS

 36% SADC Region Average

• SOUTHERN AFRICAN POWER POOL
• 6

110 kV 132 kV 220 kV 275 kV 330 kV 400 kV 533 kV DC 765 kV VOLTAG TAGE E LEVE VELS LS

DRC DRC (SNEL) EL) ZAMBI BIA (ZES ESCO) O) ZIMBAB BABWE (ZES ESA) A) MOZAM AMBI BIQUE (EDM/HCB) B) SWAZILAN AND (SEC) NAMIBI BIA (Nam amPow Power) er) BOTSW SWANA ANA (BPC) LESOTH SOTHO (LEC EC) RSA (Eskom

• m)

RSA (Eskom

• m)

RSA (Eskom

• m)

500 * 700 400 550 243 43 15 1500 00 90 90 554 100 84 84 1258 1200 171 71 20 20 40 40 * Figu gures es dep epic ict t 200 0015 15 ‘N-1-co contin tinge gency cy-criterion’ power transfer capability limits in MW. NOTE: There re are re radia ial l distri stributio tion feeders s among both th

• pe

peratin ting g and nd non

• n-
• pera

ratin ting members.

• s. These

se are NOT regarde rded as SAPP inte terco connecto ctors. rs. 1200 50 1381 610 150 830 629 37661 219 2287 1589

• 4. SAPP GRID

• SOUTHERN AFRICAN POWER POOL
• 7
• 5. SAPP COMPETITIVE MARKET

72% 4% 5% 2% 17%

Summary of Revenues on the Market for Period April 2016 to January 2017 Total USD68,988,935

Traded Amount [USD 49,995,451] Wheeling Revenues [USD 2,699,294] Losses Revenues [USD 3,120,100] Administration Revenues [USD 1,729,980] Congestion Income [USD 11,444,109]



2,580,381 MWh was matched only 865,545 MWh (34%) traded due to transmission constraints



Market share in MWh

• FPM-M 8%, DAM 74%,

FPM-W 11%, IDM 7%



Average prices:

• Off-peak: 3-6 USc/kWh
• Standard: 4-10 USc/kWh
• Peak: 10-14 USc/kWh

8

8

• 6. SAPP TRANSMISSION PROJECTS

9

9

B. . SAPP and SAPP and Standar Standardisa disation tion

10

10

• TC8: System Aspects of Electricity Supply
• TC 57: Power System Data Management
• Working Groups of Interest:
• TC8 WG2 –HV Transmission Systems

(Designs, PMUs)

• TC8 WG6 – Smartgrid Requirements
• TC8 PT 62749 - Power quality aspects
• TC8 PT 62786 - Distributed Energy

Resources

• TC8 SC8A - Interconnection of Large

Renewable Energy Generation.

• 1. TECH COMMITTEES OF INTEREST

11

11

• 2. IEC Standar

Standards ds of

• f inte

interest est

No

• No. IEC

IEC St Stand andar ard Sub Subject ject 1 IEC TR 62511:2014 Guidelines for the design of interconnected power systems 2 IEC/ IEEE PAS 63547:2011 Interconnecting distributed resources with electric power systems 3 IEC 60038:2009 IEC standard voltages 4 IEC TS 62749 Assessment of power quality - Characteristics of electricity supplied by public networks 5 IEC TR 62510:2014 Standardising the characteristics

• f electricity

6 IEC 60059:1999 IEC standard current ratings

12

12

• 3. Power Qua

er Quality in SAPP lity in SAPP

13

13

• Almost all SAPP member countries

have own grid codes

• Jurisdiction of Regulators
• Interconnection requires harmonisation of

some codes, as was done in EAPP

• SAPP Operating Guidelines
• Inferior to grid codes, revised in 2014
• Has penalties for non-compliance
• Includes requirements for connection of

IPPs

• 4. About Grid Codes

14

14

• 5. CONNECTION OF IPPs

15

15

• 6. EXAMPLES OF DESIGN DIVERSITY

16

16

• Equipment specification and

procurement

• Competitive bids, impact on tariffs
• Equipment performance
• Failure affects energy interchange
• Standardisation, speedy replacement
• High voltage switching
• Equipment identification
• Quest for single African pool
• SAPP connecting to EAPP in 2019
• 7. Standar

tandardisa disation tion, har , harmonisa monisation tion

17

17

• 8. SAPP System Viewer

18

18

Thank Y hank You

• u

En End d of

• f

Pr Prese esentatio ntation