That isn't correct. Originally, each town (which had gas), had its own gas works often owned by the local council or small private companies. Gas was made by carbonising coal in 'Retort Houses' at the gas works and storing gas in gas gasholders, often incorrectly terms 'gasometers' because they didn't measure gas - the simply stored it. The reason they were called 'gasometers'. To get the etymology out of the way, here's how 'gasometer' originated:
Antoine Lavoisier devised the first gas holder, which he called a
gazomètre, to assist his work in
pneumatic chemistry.
[1] It enabled him to weigh the gas in a
pneumatic trough with the precision he required. He published his
Traité Élémentaire de Chimie in 1789.
James Watt Junior collaborated with
Thomas Beddoes in constructing the
pneumatic apparatus, a short-lived piece of medical equipment that incorporated a
gazomètre. Watt then adapted the
gazomètre for coal gas storage.
The anglicisation "gasometer" was adopted by
William Murdoch, the inventor of
gas lighting, in 1782, as the name for his gas holders. Murdoch's associates objected that his "gasometer" was not a
meter but a container, but the name was retained and came into general use. Gas holders were marked as gasometers on the large-scale maps issued by the British
Ordnance Survey and the term came to be used to label gas works, even though there may be several gas holders at any one gas works. However, the term "gasometer" is still discouraged for use in technical circles, where "gas holder" is preferred. The spelling "gas holder" is used by the BBC, among other institutions, but the variant "gasholder" is more commonly used.
They're amazing structures - the pressure of gas, only a little above atmospheric pressure, lifted the holder, and each 'lift' in a multi-lift holder floated in a water seal as the holder went up and down:
https://en.wikipedia.org/wiki/Gas_holder
So, back to the local gas works:
Having made the gas to meet the local demand, which fluctuated considerably, particularly in the early days as gas was first used for street lighting (leading to a reduction in street crime by the way), and later domestic gas lighting, so the demand was always greater in winter than the summer, and great in the evening than the rest of the day. Gas made from coal, known as 'Town's Gas' serving the town in which it was made in local gas works stayed that way from the early 1800s till nationalisation in 1948, when a national transmission and distribution network was established, but the gas was still manufactured in local gas works and stored in gas holders well into the late 1960s when conversion to natural gas (methane) began.
Natural gas is stored in the transmission system ('grid') at high pressure ('line packing'), and called off from undersea storage as needed. The pressure is reduced in the local distribution system in towns, then at the gas meter at each house, reduced further to 20 millibar. (In 'old money', that's 8 inches water gauge). Natural gas (methane) has twice the heat value of coal gas (in old money, coal gas was 500 Btu per cubic foot, methane about 1,035 Btu, is immediately the heat carrying capacity of the network was doubled at a time when demand was increasing. (There are 3,412 Btu in a KW).
I spent my 40 year career in the Gas industry, starting an an apprentice in Nottingham in 1954, ending it as General Manager for North Humberside in 1994. During my apprenticeship, I spent time in each part of the organisation, including 3 months at the gas works, which was like Dante's Inferno! Many medicines and chemicals were derived as by products. Locally, the gas works sold coke, and anyone who wanted creosote and turned up with a container was welcome to it free of charge. Parents often brought children or came themselves to breathe in the acrid fumes if they had a 'chesty cough' which was considered a beneficial remedy!
One of the depots I was in charge of was Newark, Notts, where I found the attached items.
Ofgem didn't exist back then!
You'll see that they reduced the price of gas in summer, when it was only really used for lighting in the mid 1800s. The two pics show the gas-workers and the bosses. Not difficult to spot one from the other! Only one bowler hat with the workers - he'd be the foreman (too old to be shovelling coal into the retorts!). Third from left on the front row looks like he didn't want his pic taken. In the pic of the bosses, waistcoats, ties and fob watches were much in evidence!
The 'Gas Workers 8-Hr day' in 1889 was a landmark victory which still resonates today, and became the foundation of what morphed into the GMB Union:
The first group of Workers to achieve the 8-hour day were the
Beckton [
East London] Gas workers after the strike under the leadership of
Will Thorne, a member of the Social Democratic Federation. The strike action was initiated on 31 March 1889 after the introduction of compulsory 18-hour shifts, up from the previous 12 hours. Under the slogan of "shorten our hours to prolong our lives" the strike spread to other gas works. He petitioned the bosses and after a strike of some weeks, the bosses capitulated and three shifts of 8 hours replaced two shifts of 12 hours. Will Thorne founded the
Gas Workers and General Labourers Union, which evolved into the modern
GMB union.
https://en.wikipedia.org/wiki/Eight-hour_day_movement
Imagine expecting people to work 18-Hr shifts on such an arduous job!
(135 years later, that 'privilege' is now reserved for Junior Doctors).