King William's Town and Alice Power Stations

OVERVIEW

ESCOM purchased King William’s Town Power Station from the Municipality in January 1948. There were then two radial-flow turbo-alternators each rated at 1,5 MW and one 0,5 MW alternator driven by a reciprocating engine. ESCOM installed an additional boiler in 1949 and a new 1 MW diesel generator in 1950. When ESCOM built West Bank 2 Power Station, a 66 kV line was constructed from East London to King William’s Town, and from the end of 1956 the King William’s Town Power Station was kept available on standby for line outages and emergencies only. The 0,5 MW set was disposed of in 1964 and the diesel generator sold in 1966. The power station was completely decommissioned at the end of 1973 when the Border Undertaking was linked up with the National 400 kV system.

Alice Power Station was a diesel station having four small DC generators and one AC generator when taken over by ESCOM in April 1948. ESCOM subsequently installed two new 0,23 MW ac diesel generators and decommissioned all the old sets. A 33 kV line between King William’s Town and Alice was commissioned in August 1953, and the generating plant decommissioned in 1954. The Alice Power Station should not be confused with the Alice Street Power Station built by the Durban Municipality and started up in 1902.

King William’s Town is situated inland 54 km northwest of East London at an altitude of 394 metres. It was founded as a missionary station in 1825, and in 1835 was named in honour of the British King William IV. It became a centre for German settlement and was elevated to the status of borough in 1861. It had a population of about 15 000 in 1970.

Year Steam Plant Generation Ghw Diesel Plant Generation Ghw Net Max Power MW Load Factor(Net Basis %) Thermal Effeciency (Net Basis%) Coal Consumed Metric Calorific Value of Coal Cost of Coal R/ton
1948
6459
_
1984
37,3
12,25
6277
30,28
3,06
1949
7852
2600
34,5
12,23
7507
30,80
3,25
1950
8,078
0,018
2384
38,7
12,84
7384
30,66
3,49
1951
8376
0,105
2606
37,1
13,18
7450
30,45
3,65
1952
9036
0,087
2636
39,4
13,27
8282
29,59
4,10
1953
10008
0,026
2930
39,1
13,28
9136
29,69
4,38
1954
12501
0,086
3618
39,7
13,29
11448
29,70
4,67
1955
13908
0,122
3780
42,4
13,39
13101
29,19
5,03
1956
7849
0,070
3940
37,8
12,6
7702
29,28
5,16
1957
0,084
0,013
2900
_
11,7
89
29,49
5,34

On 1 January 1971, the Municipality purchased the King William’s Town reticulation system from ESCOM and supply was taken in bulk. The power station was completely decommissioned at the end of 1973 when the Border Undertaking was linked up with the national 400 kV system. (ESCOM Annual Reports 1971:97; 1973:95)

Two 1,5 MW Ljungström radial-flow turbo-alternators installed at King William's Town Power Station in 1931-32

ALICE POWER STATION

At a public meeting held on 9 August 1918 the proposal of the Alice Town Council to light the town by electricity was “carried almost unanimously”. Street lighting was at that time by means of oil lamps. However, when World War I was over, the Administrator of the Cape “was very adverse to municipalities going in for any schemes” due to the financial situation. By June 1919 the matter was again raised, but shelved a second time because of uncertainty in prices and the market conditions. An amended scheme was proposed in November 1919 whereby a feeder would be constructed and Lovedale offered power and light as well. Although the capital costs would be double, the revenue would also be almost double. Alice would take over the existing plant at Lovedale including the engine and gas plant. This proposal was carried unanimously at a public meeting on 3 December 1919 and approved by the Administrator. There were objections to the site chosen for the power station at Alice but approval was given at a public meeting on 22 February 1920. By March 1921 the plant had been installed and Mr Chalmers, the Electrical Engineer, was congratulated for the efficient manner in which he had conducted the installation. In June 1922 there were two dynamos of 40 kW each but the engines were effective for only 32 kW each. Additional plant was proposed. (Minutes of the Council 1918-1921; Minutes of the Electrical Committee 1921 [National Archives Ref 3ALC 1/1/1/11:24-339; 3ALC 1/2/2/1/1:46-76])

At the Alice Power Station, the plant taken over by ESCOM consisted of the following:
Diesel generators: 1 – 40 kW 2 – 63 kW 1 – 90 kW 440/220 V DC
1 – 125 kW 3,3 kV AC(ESCOM Annual Report 1948:98)

When ESCOM took over the Alice Power Station it was decided to augment the plant by installing a new 440 V 230 kW AC generator. New 3,3 kV switchgear and step-up transformers were ordered in anticipation of changeover from DC to AC. The building was renovated and two of the old DC generators removed to make room. A second 400 V 230 kW AC generator was installed in 1951, enabling the 125 kW set to be removed for repairs. During October 1952, the change over of consumer supplies and street lighting to AC was completed. A 33 kV transmission line between King William’s Town and Alice was commissioned in August 1953, and continuous working of the station was ceased. The generating plant was decommissioned in 1954 and sold. (ESCOM Annual Reports 1948:41; 1949:37; 1950:96; 1951:39&88; 1952:33&88; 1953:33; 1954:34&35; 1955:37)

Operating statistics for Alice Power Station are as follows:

Year Net Generation Ghw Net Max Power (1/2 hour) Mw Load Factor (Net basis) % Diesel Oil Consumed tonMetric Cost of Fuel R/metric ton Fuel Consumption kg/Kwh (net)
1948
0,554
0,172
36,7
214,184
Not Available
0,386
1949
0,537
0,187
32,8
226,549
28,08
0,422
1950
0,584
0,197
33,8
227,477
34,06
0,390
1951
0,675
0,199
38,7
252,284
40,33
0,374
1952
0,706
0,192
41,9
260,626
Not Available
0,369
1953
0,443
0,201
25,2
153,902
Not Available
0,347
1954
0,004
1,937

BIBLIOGRAPHY

This information on the power stations was produced by Stephen Leech and Dick Fowler, a retired Eskom employee.

Daily Dispatch – 12 October 1905

1.ESCOM Annual Reports – 1947 to 1966

2.ESCOM: Twenty-five Years – A record of the origin, progress and achievements of the Electricity Supply Commission, 1923-1948

3.Merz and McLellan 1920 – Electric Power Supply in the Union of South Africa

4.The New Encyclopaedia Britannica

5.The Standard Encyclopaedia of Southern Africa

6.The Electrician 1903-1904

7.Original Minutes of the King William’s Town Council 1903-1904, 1922-1928 and 1931-1932 [National Archives Ref 3KWT 1/1/1/15, 22&23]

8.Original Minutes of the Alice Town Council 1918-1921 and the Electrical Committee 1921 [National Archives Ref 3ALC 1/1/1/11 and 3ALC 1/2/2/1/1]

9.E Poole, In: Eighty Years – The History of the Association of Municipal Electricity Undertakings (Southern Africa)