South Metropolitan Electric Light and Power Company

South Metropolitan Electric Light and Power Company

Company type	Public limited company
Industry	Energy: Electricity generation and supply
Predecessor	Crystal Palace District Electric Supply Company; Blackheath and Greenwich District Electric Light Company
Founded	16 June 1904
Defunct	31 March 1948
Fate	Nationalisation
Successor	British Electricity Authority and London Electricity Board
Headquarters	London
Area served	London, Kent (part), Surrey (part)
Key people	see text
Services	Electricity supply
Revenue	£27,796 (1923)

The South Metropolitan Electric Light and Power Company Limited was a UK-based electricity provider formed in 1904 by merging two longstanding south London enterprises dating back to 1893. It managed power generation facilities at Blackwell Point and Penge. Starting in 1925, the company collaborated with three other London electricity firms to centralize production at the more efficient Barking power station. The firm was dissolved in March 1948 following the nationalisation of the British electricity sector.

Background

The South Metropolitan Electric Light and Power Company Limited emerged from the consolidation of early electricity suppliers serving south London.

Initially incorporated on 30 June 1883 as the Electric Construction and Maintenance Company, it was renamed the Electric Installation and Maintenance Company in 1889, then became the Crystal Palace District Electric Supply Company in 1891. This entity obtained a provisional order authorized by Parliament in 1890, enabling it to provide electrical services to areas such as Camberwell, Lambeth, Lewisham, Croydon, Beckenham, and Penge starting in February 1893.

Separately, the Blackheath and Greenwich District Electric Light Company Limited was registered in May 1896. It secured a Board of Trade provisional order to supply electricity to Greenwich, Charlton, Eltham, Lee, Kidbrook, and Lewisham, which Parliament confirmed in 1897. The arrangement allowed local authorities to acquire portions of the enterprise at a premium of one-third above invested capital. Distribution commenced from Blackwall Point power station in 1900.

On 16 June 1904, the Crystal Palace District undertaking was absorbed by the Blackheath and Greenwich District Electric Light Company. The resulting merged organization adopted the name South Metropolitan Electric Light and Power Company Limited. Its service territory encompassed the metropolitan boroughs of Lewisham and Greenwich (excluding St Nicholas Deptford), parts of Lambeth and Camberwell boroughs, along with small sections of Croydon County Borough and the urban districts of Beckenham and Penge.

Management Board

In 1909, the management board of South Metropolitan Electric Light and Power Company included:

• Henry St John Winkworth (Chairman)
• William May
• Henry White Bowden (Managing Director)

The company maintained offices at 183-185 High Street, Lewisham.

Between 1936 and 1938, board members were:

• Sir Bernard Greenwell (Chairman)
• M. B. U. Dewar
• Sir Robert Renwick

At that time, offices were situated at County House, 46/47 New Broad Street, London EC2.

Power stations

The Springfield Works located in Sydenham, part of the Crystal Palace District, was operational from 1893 until approximately 1904–1910.

Electricity for the South Metropolitan network was also provided by the Penge power station.

At Blackwall Point, the Blackheath and Greenwich Company established a power station on the site of the former East Greenwich tide mill, which began operations in February 1900. By 1907, this facility contained two 1,500 kW two-phase turbo alternators operating at 3,000 volts.

In 1923, the Blackwall Point power station was equipped with coal-fired boilers generating steam at a rate of 371,000 lb/h (46.7 kg/s), which powered:

• Generators:
  • Two 1,500 kW turbo-alternators (alternating current)
  • One 2,500 kW turbo-alternator (alternating current)
  • Three 5,000 kW turbo-alternators (alternating current)

The total installed capacity reached 20,000 kW. The electricity output was delivered as either two-phase or three-phase AC at a frequency of 50 Hz with voltages of 400, 200, and 100 volts.

Operational data

Between 1893 and 1903, the Crystal Palace District experienced a rapid increase in electricity demand, with load rising from 136.9 kW to 1,099.0 kW and the equivalent number of lamps growing from 3,913 to 31,400.

During the same period, the Blackheath and Greenwich District saw its electricity load escalate from 506.6 kW in 1900 to 2,118.9 kW by 1903; customer numbers expanded from 342 to 1,784.

A comparison of both entities' performance in 1903 is as follows:

Blackheath and Crystal Palace operational data, 1903

Undertaking	Blackheath and Greenwich	Crystal Palace
Plant capacity (kW)	2,000	855
Peak load (kW)	1,035	530
Customer count	1,734	–
Equivalent 8 c-p lamps	60,540	31,400
Electricity sold (MWh)	1,180	424
Load factor (%)	13.02	9.10

This comparison reveals that Crystal Palace's operation was approximately half the size of Blackheath and Greenwich in terms of both capacity and electricity output.

Electricity supply

The South Metropolitan Company expanded its operations considerably to satisfy increasing electricity consumption demands. The table below presents essential operational statistics such as plant capacity, peak load, electricity sales, customer base, connected load, and load factor spanning from 1904 to 1946.

South Metropolitan Company operating data, 1904–1946

Year	Plant capacity (kW)	Maximum load (kW)	Electricity sold (MWh)	Number of customers	Connected load (kW)	Load factor (%)
1904	2,000	1,035	1,180	2,555	–	13.02
1905	2,300	1,400	2,144	2,858	–	–
1906	–	–	–	3,201	–	–
1907	–	–	2,947	3,383	–	–
1908	–	–	3,303	3,649	–	–
1912	6,000	4,000	5,481	5,263	9,060	15.6
1913	–	–	6,662	–	–	–
1919	20,000	8,500	15,643	7,641	21,332	21.0
1921	20,000	max load missing 17,643	max customers missing 22,900 25.0
1922	20,000	9,000	19,698	–	24,160	29.3
1923	20,000	10,000	20,765	–	24,430	29.8
1924	–	–	25,182	–	–	–
1931	–	–	55,864	–	–	–
1933	20,000	35,100	75,643	29,578	90,512	28.5
1934	–	–	97,785	–	–	–
1935	–	–	113,338	–	–	–
1936	20,000	50,140	139,650	48,177	170,419	33.4
1946	–	15,680	15,337	–	–		} The accompanying charts illustrate the increase in electricity sales (measured in MWh) over two intervals: from 1893 to 1913 and from 1919 to 1946. Beginning in 1903 the South Metropolitan Company gained authorization to supply electricity wholesale to the West Kent Electric Company; by 1923 it delivered a bulk supply amounting to 5,323 MWh to this customer. This arrangement significantly broadened the Company's market presence beyond its core service territory. Electricity consumption Initially, electricity was primarily utilized for illumination, but its role swiftly broadened to encompass power-driven uses. The following table illustrates the changing electricity consumption trends of the South Metropolitan Company from 1921 through 1936 (measured in MWh): South Metropolitan Company Electricity Usage by End Use, 1921–1936 (MWh) Category (MWh) Year 1921 1922 1923 1924 1931 1936 Public lighting 0 0 0 0 71 874 Residential supply 3,162 3,738 4,265 19,644 40,335 47,888 Power and heating 9,381 9,863 11,732 41,222 Traction services 0 0 0 0 0 0 Bulk distribution 5,099 5,097 4,707 5,538 14,458 49,666 Overall total 17,643 18,698 20,705 25,182 55,864 139,650 Financial overview Funding for the company's establishment and operations was secured through share issues aimed at covering costs related to land procurement, infrastructure development, equipment acquisition, and legal fees. The Crystal Palace Company’s initial capital outlay amounted to £75,770 in 1896 and an additional £7,965 in 1897. Crystal Palace Company Financial Summary, 1893–1897 Year Income (£ s d) Operating expenses (£ s d) 1893 857 17  2 3,354 11  5 1894 1,977 14  7 3,675 12  3 1895 2,611 2  10 3,668 18  0 1896 3,491 15  9 4,305 17  6 1897 4,604 2  8 5,244 10  2 The Blackheath and Greenwich alongside the South Metropolitan companies (after their merger in 1904) demonstrated consistent revenue increases from £4,195 in 1900 up to approximately £43,000 by 1908. 1900 |4,195 2  1 |4,050 4 2 |114 17  11 ... Blackheath and Greenwich & South Metropolitan Revenue and Expenses (1900–1908) Year !Total Revenue (£ s d) !Costs (£ s d) !Net Income (£ s d) Expansion efforts were financed through share issuances; notably in 1909 a batch of 50,000 shares bearing six percent interest at £1 each was offered. By 1938 the company had issued debenture stock worth £500,000 alongside further equity shares. Between 1913 and 1923 the South Metropolitan Company saw substantial growth in both revenue and earnings—rising from £56,465 revenue with profits of £3,933 in 1913 to £227,796 revenue accompanied by £134,929 profit a decade later. ... South Metropolitan Revenue and Profit (1913–1923) Year !Revenue (£) !Expenses (£) !Profit (£) To accommodate increasing demand capital expenditures escalated over time; annual spending peaked at £94,329 by the year 1919. Capital investment |£42,282 |£38,922 |£19,062 |£20,719 |£18,622 |£24,126 ... South Metropolitan Capital Spending (1907–1919) Year !1907 !1908 !1909 !1910 !1911 !1912 Shareholders consistently received dividends throughout the company’s operational history. Dividend yields started below average initially but improved to around five percent by the late 1910s. ... South Metropolitan Share Dividends (1900–1919) Year !Dividend Yield % !Average London Electricity Dividend % Profitability remained robust during the mid-1930s with earnings recorded at £114,325 in 1935; increasing to £119,762 in 1936 and reaching £149,933 by 1937. Collaborative Operations The South Metropolitan Company joined forces with three other electricity providers from south and east London—the City of London Electric Lighting Company, the County of London Electric Supply Company, and the South London Electric Supply Corporation—to promote the London Electricity (No. 1) Act 1925 (14 & 15 Geo. 5. c. lxii). These companies established a joint committee to oversee the coordinated management of their power generation facilities while maintaining their individual roles as district electricity suppliers interconnected by linking cables. The legislation required a balance between shareholder returns and consumer benefits, capping dividends at an annual rate of 7% and restricting the accumulation of retained earnings; any surplus profits were passed on to consumers through reduced electricity prices. In 1925, the County of London Company commissioned the 118.75 MW Barking A power station, followed by the larger 303.5 MW Barking B station in 1933. These interlinked systems, combined with the national grid, facilitated large-scale electricity transfers. For instance, in 1931, the South Metropolitan Company generated 35,157 MWh and purchased an additional 30,216 MWh. Government Policy The Electricity (Supply) Act 1926 (16 & 17 Geo. 5. c. 51) led to the creation of the Central Electricity Board (CEB), which selected efficient power stations for operation and developed the national grid between 1927 and 1933 to interconnect regional generators. In 1948, the British electricity supply sector underwent nationalisation under the Electricity Act 1947 (10 & 11 Geo. 6. c. 54). As a result, the South Metropolitan Electric Light and Power Company Limited was dissolved; ownership of Blackwall Point and Penge power stations was transferred to the British Electricity Authority, later reorganized as the Central Electricity Authority and ultimately the Central Electricity Generating Board (CEGB). Responsibilities for distribution and retail sales were assigned to the London Electricity Board (LEB). Blackwall Point power station continued operations until its reconstruction by the British Electricity Authority in 1948 as a 100 MW facility. Barking A and Barking B power stations remained active until their closures in 1969 and 1976 respectively. See also Timeline of the UK electricity supply industry London Power Company Charing Cross and Strand Electricity Supply Corporation City of London Electric Lighting Company County of London Electric Supply Company South London Electric Supply Corporation References