South Wales Table 3 – British Electricity History

Table 3 SOUTH WALES: ELECTRICITY SUPPLY UNDERTAKINGS 1925/26

*UNDERTAKING*	*COUNTY*	*SYSTEM*	FREQUENCY Hz	*GENERATING CAPACITY kW*	*PER CAPITA CONSUMPTION kWh*
*Local Authorities*
Aberdare	Glam	AC/DC	50	–^a	38.1
Abertillery	Mon	AC/DC	50	166	8.6
Ammanford	Carms	DC		320	22.4
Bedwas & Machen	Mon	AC	25	–^b	5.5
Bedwellty	Mon	AC	50/25	–^a,b	14.2
Bridgend	Glam	AC	60	770	46.4
Caerphilly	Glam	AC	25	–^b	5.5
Cardiff	Glam	AC/DC	50	27,200	147.5
Cardiff RD	Glam	AC	25	–^b	16.2
Ebbw Vale	Mon	DC		–^c	22.4
Gelligaer	Glam	AC	50/25	–^a,b	17.9
Llandilo	Carms	DC		84	25,2
Llandrindod Wells	Radnor	DC		531	37.7
Maesteg	Glam	AC	50	–^d	8.3
Monmouth	Mon	AC	60	174	18,5
Mountain Ash	Glam	AC	25	–^a	221.9
Mynyddislwyn	Mon	AC	26	–^b	3.9
Neath MB	Glam	AC	50	–^e	19.6
Neath RD	Glam	AC	50	2,400	14.6
Newport CB	Mon	AC/DC	50/87.5	14,850	252.0
Ogmore & Garw UD	Glam	AC	25	–^b	5.3
Pontypridd UD	Glam	AC/DC	25	1,250	57.3
Port Talbot UD	Glam	AC	50	350	0.1
Rhondda UD	Glam	AC	25	800	10.9
Swansea CB	Glam	AC/DC	50	25,800	189.3
*Companies*
Aberayron Dist ES&P Co	Card	DC		70	9.4
Carmarthen ES Co	Carm	DC		300	30.0
Chepstow EL&P Co	Mon	AC	50	—^f	42.1
Glantawe ES Co¹	Brecknock	DC		170	16.1
Gorseinon EL Co	Glam	AC/DC	50	-g	41.1
Llanelly & Dist EL&Traction Co	Carms	AC/DC	50	11,250	304.9
Merthyr Tydfil ET&L Co	Glam	AC/DC	25	820	23.5
Ogmore Valley EL&P Co	Glam	AC	50	–^b	16.6
Penarth EL Co	Glam	AC/DC	50	1,720	65.0
Pontypool EL&P Co	Mon	AC/DC	25	260	24.1
South Wales EP Distrbtn Co.	Glam	AC	25	48,750	–

Notes: [1] The electricity works was located in Ystradgynlais. Source of bulk supply:

a Powell Daffryn Steam Coal Co.
b South Wales Electrical Power Distribution Co.
c Ebbw Vale Steel, Iron & Coal Co.
d North’s Navigation Collieries
e Neath RD
f West Gloucestershire Power Co.
g Swansea Corporation

Source: Electricity Commissioners, Engineering and Financial Statistics 1925/26.

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