Pimlico District Heating Undertaking

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The system's thermal store in Churchill Gardens. Pimlico accumulator tower 1.jpg
The system's thermal store in Churchill Gardens.

The Pimlico District Heating Undertaking (PDHU) is a district heating system in the Pimlico area of London, United Kingdom. The first district heating system built in the United Kingdom, [1] it is owned by Westminster City Council and operated by CityWest Homes. The system is connected to 3,256 homes, 50 business premises and three schools. [1]

District heating system for distributing heat generated in a centralized location for residential and commercial heating requirements

District heating is a system for distributing heat generated in a centralized location through a system of insulated pipes for residential and commercial heating requirements such as space heating and water heating. The heat is often obtained from a cogeneration plant burning fossil fuels or biomass, but heat-only boiler stations, geothermal heating, heat pumps and central solar heating are also used, as well as heat waste from nuclear power electricity generation. District heating plants can provide higher efficiencies and better pollution control than localized boilers. According to some research, district heating with combined heat and power (CHPDH) is the cheapest method of cutting carbon emissions, and has one of the lowest carbon footprints of all fossil generation plants. Fifth generation district heat networks do not use combustion on-site and have zero emissions of CO2 and NO2 on-site; they employ heat transfer which uses electricity which may be generated from renewable energy, or from remote fossil fuelled power stations. A combination of CHP and centralized heat pumps are used in the Stockholm multi energy system. This allows the production of heat through electricity when there is an abundance of intermittent power production and cogeneration of electric power and district heating when the availability of intermittent power production is low.

Pimlico small area of central London in the City of Westminster

Pimlico is a small area within Central London in the City of Westminster. Like Belgravia, next to which it was built as a southern extension, Pimlico is known for its garden squares and Regency architecture.

London Capital of the United Kingdom

London is the capital and largest city of both England and the United Kingdom. Standing on the River Thames in the south-east of England, at the head of its 50-mile (80 km) estuary leading to the North Sea, London has been a major settlement for two millennia. Londinium was founded by the Romans. The City of London, London's ancient core − an area of just 1.12 square miles (2.9 km2) and colloquially known as the Square Mile − retains boundaries that follow closely its medieval limits. The City of Westminster is also an Inner London borough holding city status. Greater London is governed by the Mayor of London and the London Assembly.

History

The system began operations in 1950, and originally used waste heat from Battersea Power Station, [2] which was pumped under the River Thames through a disused Metropolitan Water Board tunnel. [1] A thermal store was built in Churchill Gardens, which could hold 2,300m³ and remains the largest thermal store in the UK. [2] The system was originally build to serve 1,600 council homes. [3] By 1958 Battersea was operating with a thermal efficiency of 25%, making it one of the world's most efficient power stations at the time. [1]

Battersea Power Station decommissioned coal-fired power station in London, England

Battersea Power Station is a decommissioned coal-fired power station, which is now being redeveloped to bring new homes, offices, shops, restaurants, bars, open space and more to Wandsworth, south London. Now owned by a consortium of Malaysian investors, the Grade II* listed building and the surrounding 42 acres are being gentrified through an eight phase development project. The first phase, Circus West Village, is already complete and now open to the public to eat, drink, shop, exercise and live. Situated on the south bank of the river by Chelsea Bridge, over 1000 people now live at Circus West Village, and 12 restaurants, bars and shops are open alongside a fitness studio and a hair salon. Circus West Village is accessible by river bus, as the new Battersea Power Station pier is serviced by MBNA Thames Clippers.

River Thames river in southern England

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After Battersea Power Station closed in 1983, a 30MW coal-fired boiler was built to supply the system with heat. The boiler was subsequently converted to gas in 1989. [1] A refurbishment in 2006 saw two 1.55MWe CHP engines and three 8MW gas boilers installed. [2] The system generates around 51GWh of heat and 16GWh of electricity per year.

Cogeneration simultaneous generation of electricity, and/or heating, or cooling, or industrial chemicals

Cogeneration or combined heat and power (CHP) is the use of a heat engine or power station to generate electricity and useful heat at the same time. Trigeneration or combined cooling, heat and power (CCHP) refers to the simultaneous generation of electricity and useful heating and cooling from the combustion of a fuel or a solar heat collector. The terms cogeneration and trigeneration can be also applied to the power systems generating simultaneously electricity, heat, and industrial chemicals – e.g., syngas or pure hydrogen.

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References

  1. 1 2 3 4 5 PDHU CityWest Homes
  2. 1 2 3 Michael Martin & Patricia Thornley (2013) The potential for thermal storage to reduce the overall carbon emissions from district heating systems Tyndall Centre for Climate Change Research
  3. District heating: a hot idea whose time has come The Guardian, 18 November 2014

Coordinates: 51°29′09″N0°08′25″W / 51.485896°N 0.14028758°W / 51.485896; -0.14028758

Geographic coordinate system Coordinate system

A geographic coordinate system is a coordinate system that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are often chosen such that one of the numbers represents a vertical position and two or three of the numbers represent a horizontal position; alternatively, a geographic position may be expressed in a combined three-dimensional Cartesian vector. A common choice of coordinates is latitude, longitude and elevation. To specify a location on a plane requires a map projection.