2OC's Fat-Fuelled Power Plant, Beckton, London, United Kingdom

Combined heat and intelligent power (CHiP) plant

2OC, a green utility company based in the UK, is setting up a combined heat and intelligent power (CHiP) plant at Beckton in east London. The plant will be located adjacent to the National Grid Gas Pressure Reduction Station.

The main source of fuel for the plant will be the fats, oils and gases which are thrown away by households and restaurants.

The plant will have annual output of 130GWh of electricity, while the installed capacity will be 19MW. It is expected to operate at an electrical efficiency of more than 65% and provide power for approximately 40,000 households.

J Murphy & Sons has been awarded the contract to construct the plant in April 2013.

Fats, oils and greases (FOG) as fuel

"The project is being developed through a joint venture with the National Grid, UK."

Beckton's power project got clearance from Newham Borough Council and from the London Thames Gateway Development Commission in 2009.

The plant will be constructed on 2OC's own land near Thames Water's desalination plant and sewage treatment works site. Operations are expected to begin in 2015.

The plant will use fats, oils and greases (FOG) for generating electricity. Thames Water, Britain's biggest water company, will provide the fuels required for electricity generation.

Thames Water will collect food fat, low-grading cooking oil and other greases. Thames Water will also collect animal fat and waste vegetable oils from households, restaurants and food product manufacturers and supply the same to the Beckton plant. It will supply 300t of FOG per day to the plant, which forms half of the fuel requirement.

The contract period with Thames Water for the supply of FOG is 20 years. The plant will also be compatible to use other renewable fuels, such as bio-methane.

Technology at 2OC's Beckton-based power plant

2OC will install its Combined Heat and intelligent Power (CHiP) station at the Beckton power plant.

"Thames Water, Britain's biggest water company, will provide the fuels required for electricity generation."

The plant will be equipped with a MAN B&W type 10L35MC-S diesel engine. The two-stroke, low-speed engine runs on bio-fuels. The engine can generate 6,450kW of power at a rate of 214.3 rotations per minute.

The plant will be equipped with a 13MW generation unit and a turbo expander. Some of the heat generated by the engine will be converted into thermal energy with the help of the turbo expander, to produce additional power.

Heat recovery cycles of the CHiP technology increase the thermal efficiency of the plant. Heat from the engine will be supplied to the adjacent gas pressure reduction station owned by the national grid, replacing the gas boilers used to preheat the gas.

Advanced control and instrumentation equipments will be installed at the renewable plant.

Distributing power from the CHiP facility

2OC will sell 75GWh of the electricity generated at the plant to Thames Water, while the remaining 55GWh will be sold to the national grid. A £200m ($304m) deal was signed between Thames Water and 2OC regarding the purchase in April 2013. 2OC will supply power and heat to Thames Water's sewage treatment works at Beckton, as part of the 20-year agreement.

Finances and contracts for Beckton's fat-fuelled plant

The Beckton power plant is being financed by iCON Infrastructure, EEA Holdings and Deutsche Bank.

J Murphy & Sons is responsible for the Beckton plant's engineering works, material procurement and construction. The £70m ($105m) valued contract was awarded through a tender system.

NRI Energy Technology

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