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#288070 - 31st Jan 2009 11:54am Unilever's Power Stations
uptoncx Offline

Veteran

Registered: 24th May 2008
Posts: 677
Loc: Wirral
I’m afraid that this is rather long and probably very boring, but I spent six moths with almost free access to both power stations in 1975 as part of my degree in Electrical Engineering, I found the places fascinating (if only I’d taken some pictures). So, a bit of History (apologies to _ste_ for pinching two of his pictures)....

On 3rd March 1888 work started on building William Hesketh Lever’s soap factory and village on the marsh by Bromborough Pool, a year later the first soap was produced. The village was called Port Sunlight after Lever’s ‘Sunlight’ trademark.

Over the coming years both the works and the village expanded, ‘Lifebuoy’ soap was introduced in 1894, Sunlight docks were opened in 1895, ‘Lux’ soap flakes appeared in 1902 and ‘Vim’ scouring powder arrived in 1904. By 1911 the factory was producing 4,000 tons per week. By 1916 they had bought their neighbour, Price’s Patent Candle Company.

More and more electricity was being used in the manufacturing processes, so in 1918 Lever Brothers built a power station on the banks of the Mersey on what was to become Commercial Road.

The station was called Central Power Station and had three coal fired boilers and a 5 Megawatt generating set manufactured by Siemen’s Brothers. The boilers had ‘chain grates’, these were like slow moving conveyor belts which passed through the furnaces, coal was loaded on one end from a hopper, it moved into the furnace and as the coal burned, the ash was collected in hoppers under the boilers.

Expansion continued, in 1929 electricity was installed in the houses of Port Sunlight Village and, in 1931, Bromborough Dock was opened. To meet the increased demand, Central Power Station was expanded, with the addition of three more coal fired boilers and a 6.25 Megawatt generating set.

The station could now produce a total of 11.5 Megawatts of electrical power at 3.3kv.

By the 1950s Central Power Station was producing power for the various Lever’s factories around Port Sunlight and Bromborough, both of the Villages and for other companies operating in the Bromborough Pool area. It had a connection to the main MANWEB electricity supply so that in periods of high demand it imported power from MANWEB, and at times of low demand it exported power to MANWEB.

Many of the works supplied with electricity also used steam and there were more than 10 low pressure steam generating plants operating in the area. A new type of generating set was now available, this was known as a ‘Back Pressure Generator’, it took steam at high pressure, used it to turn the turbine then output the steam for re-use at a lower pressure.

A pilot scheme was installed in the hardening plant of the old margarine works, opposite Central Power Station, this consisted of a small 1.3 Megawatt back pressure generating set manufactured by British Thomson Houston. This took steam at 230 p.s.i. from the power station boilers and output steam at 50 p.s.i.

The pilot scheme was a success, and it was decided to build a new power station on what is now Thermal Road.


Merseyside Power Station in the 1970s

The new station was built with four oil fired boilers producing steam at 650 p.s.i. These supplied two primary generating sets, each producing 5 Megawatts at 11kv and reducing the steam pressure to 230 p.si. This lower pressure steam supplied two secondary generating sets, each producing 2.5Megawatts at 3.3kv, these reduced the steam pressure to 110 p.s.i. Oil was supplied to the station by a 4 inch diameter pipeline from the Shell pumping station at Ellesmere Port.

The pilot scheme in the hardening plant was retained, as were two of the newer boilers in Central Power Station, the remaining four boilers and the two generating sets were shut down but retained for standby purposes.

The station, named Merseyside Power Station, was commissioned in 1958 and was capable of producing 16.3Mw of electrical power, and steam at 230, 110 and 50 p.s.i.

There was one other boiler in the system, this was a low pressure (110 p.s.i.) boiler located at Bromborough dock, it was heated by burning the waste from all the Lever factories in the area.


Boiler Controls in Merseyside Power Station

In 1964 work started on expanding Merseyside Power Station, a new 1,500 p.s.i. boiler and two new generating sets were installed. These new generators were manufactured by AEI, the first produced 5.4 Megawatts at 11kv, this reduced the 1,500 p.s.i. steam to 650 p.s.i., and the second produced 8.1 Megawatts at 11kv and reduced the steam pressure to 110 p.s.i.


One of the new Generators

The extension was commissioned in 1966, the hardening plant generator remained in service, but the two working boilers at Central Power Station were reduced to stand by status, and the three older boilers were put into dry storage. The Unilever network now had a total capacity of almost 30 Megawatts and provided steam at 1500, 230, 110 and 50 p.s.i. For security, a second connection to the MANWEB network was established at the Sunlight South Substation.


Control Room at Merseyside Power Station

In 1974, a further extension to Merseyside Power Station was started, this was almost a duplicate of the 1966 expansion, with one additional high pressure boiler and two additional back pressure generating sets. At the same time the switch gear at Central Power station was replaced and the control rooms at both power stations were refurbished, the biggest changes being at Central were the old wooden control desks were replaced with new steel desks.


The smart new control desks today

During the next few years, the older three boilers at Central Power Station were removed and one of the boiler wings was demolished.

With changes in industrial processes, the requirements for steam changed and in January 1997, Unilever announced that Merseyside Power Station would close, with power distribution being handed over to MANWEB, at the end of 1998. Following closure, Merseyside Power Station was demolished, the control room block at Central Power Station was retained until new arrangements could be made for the connection to the MANWEB network, but the remaining boiler block, turbine room and cooling tower were demolished.


Central Power Station Today, only the derelict 11kv switchroom with the control room above remains


Merseyside Power Station Today



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#288074 - 31st Jan 2009 12:10pm Re: Unilever's Power Stations [Re: uptoncx]
TRANCENTRAL Offline

Green Meanie
Wiki Master

Registered: 10th Apr 2008
Posts: 13082
Loc: Asylum
Nice one mate! History,info,and pixs. happy
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#288078 - 31st Jan 2009 12:36pm Re: Unilever's Power Stations [Re: TRANCENTRAL]
Dava2479 Offline

Forum Addict

Registered: 10th Feb 2008
Posts: 1924
Loc: Wirral
That`s good stuff mate. happy

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#288081 - 31st Jan 2009 12:47pm Re: Unilever's Power Stations [Re: Dava2479]
Pete_Robbo Offline

Keep It Real !!
Wiki Guide

Registered: 11th Aug 2008
Posts: 6629
Loc: Wirral
wow very interesting thanks for sharing


thanks robbo wink
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#288089 - 31st Jan 2009 1:08pm Re: Unilever's Power Stations [Re: Pete_Robbo]
chriskay Online   content

Forum Guardian

Registered: 25th Oct 2007
Posts: 3933
Loc: shropshire
Thanks for an excellent write-up.
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#288108 - 31st Jan 2009 3:57pm Re: Unilever's Power Stations [Re: chriskay]
_Ste_ Offline

Wiki Master

Registered: 7th Aug 2005
Posts: 15412
Loc: New Brighton
Thankyou very much upton, really apreiciate your time and effort put into this exellent write up happy

Great work smile
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#288150 - 31st Jan 2009 5:45pm Re: Unilever's Power Stations [Re: _Ste_]
hoseman Offline
Forum Master

Registered: 30th Sep 2007
Posts: 2346
Loc: Bromborough
Nice one, good History there mate.
I was permanently onsite when it was demolished, doing hydraulic repairs to the machines. The demo company where called Keltbrae (think spelt right!) and their sign is still outside thoes gates!!
Remember the guys saying it was a 12 month contract..... 3 yrs later they were still onsite!
First prob was asbestos, told there was none and it was full of the stuff!
Second was the oil storage tanks buried below ground had ruptured, contaminating the ground. If you look at the site now, 10 yrs later and not much grows there!!!
Last was the kestrels nesting in one of the support columns, had enviromental onsite 24/7 and couldnt go near the area until the chicks had flown the nest!!!!
Tonnes of stuff came out of there, machinery and equipment!
Always thought about that sign on the gates looking good in my study......... Robbo, the cordless grinder mate!!!! raftl
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#288567 - 1st Feb 2009 11:30pm Re: Unilever's Power Stations [Re: hoseman]
_jase_
Unregistered


exellent info thanks. smile really apreiciate happy

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#288577 - 1st Feb 2009 11:44pm Re: Unilever's Power Stations [Re: ]
Wheels Offline
Wiki Veteran

Registered: 4th Jan 2005
Posts: 8795
Loc: Tranmere
brilliant, I use to ride past it all the time as a kid. i remember the day they blew the chineys down as I could see then from my bedroom window.

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#288579 - 1st Feb 2009 11:56pm Re: Unilever's Power Stations [Re: Wheels]
_jase_
Unregistered



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#288837 - 2nd Feb 2009 2:49pm Re: Unilever's Power Stations [Re: hoseman]
chriskay Online   content

Forum Guardian

Registered: 25th Oct 2007
Posts: 3933
Loc: shropshire
Originally Posted By: hoseman
Nice one, good History there mate.
I was permanently onsite when it was demolished, doing hydraulic repairs to the machines. The demo company where called Keltbrae (think spelt right!) and their sign is still outside thoes gates!!
Remember the guys saying it was a 12 month contract..... 3 yrs later they were still onsite!
First prob was asbestos, told there was none and it was full of the stuff!
Second was the oil storage tanks buried below ground had ruptured, contaminating the ground. If you look at the site now, 10 yrs later and not much grows there!!!
Last was the kestrels nesting in one of the support columns, had enviromental onsite 24/7 and couldnt go near the area until the chicks had flown the nest!!!!
Tonnes of stuff came out of there, machinery and equipment!
Always thought about that sign on the gates looking good in my study......... Robbo, the cordless grinder mate!!!! raftl


Is this the site you mean, now called Old Hall Industrial Estate? This view shows buried tanks; interestingly, they don't show up in birds eye view, but you can see how nothing is growing there.
I think this is the power station I watched them build, by walking through the woods from Eastham Ferry. If I'm roght, I don't think this one had anything to do with Lever's.

http://maps.live.com/default.aspx?v=2&FORM=LMLTCP&cp=53.331193~-2.967939&style=a&lvl=15&tilt=-90&dir=0&alt=-1000&scene=29166110&phx=0&phy=0&phscl=1&encType=1

I don't know why that isn't a clickable link, but copy & paste into your browser works.


Edited by chriskay (2nd Feb 2009 2:53pm)
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#288850 - 2nd Feb 2009 3:47pm Re: Unilever's Power Stations [Re: chriskay]
DavidB Offline
Forum Veteran

Registered: 7th Dec 2003
Posts: 5429
Loc: Leamington
I love those gates, I've often wondered what was behind all that, it looks pretty bleak and deserted.
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#288859 - 2nd Feb 2009 4:00pm Re: Unilever's Power Stations [Re: DavidB]
Wheels Offline
Wiki Veteran

Registered: 4th Jan 2005
Posts: 8795
Loc: Tranmere
those tanks are gone now. its completly flat and full of water.

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#288881 - 2nd Feb 2009 4:55pm Re: Unilever's Power Stations [Re: chriskay]
uptoncx Offline

Veteran

Registered: 24th May 2008
Posts: 677
Loc: Wirral
Originally Posted By: chriskay
Is this the site you mean, now called Old Hall Industrial Estate? This view shows buried tanks; interestingly, they don't show up in birds eye view, but you can see how nothing is growing there.
I think this is the power station I watched them build, by walking through the woods from Eastham Ferry. If I'm roght, I don't think this one had anything to do with Lever's.


No, that was Bromborough Power Station, owned by the CEGB, which was demolished in 1986.

The diagram of the steam distribution system below shows the locations of the various installations of the Unilever Network.



(A bigger version of this is available by clicking here)





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#288885 - 2nd Feb 2009 5:09pm Re: Unilever's Power Stations [Re: uptoncx]
chriskay Online   content

Forum Guardian

Registered: 25th Oct 2007
Posts: 3933
Loc: shropshire
Originally Posted By: uptoncx

No, that was Bromborough Power Station, owned by the CEGB, which was demolished in 1986.


So, that had a very short life. It must have been in the very late 40's or early 50's that it was built.
Thanks for the interesting diagram.

Cheers, Chris.
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