SITA taps Hitachi Zosen Inova to build Severnside EfW plant

Hitachi Zosen Inova has won the construction contract for the Severnside Energy Recovery Centre (SERC) at Severnside, South Gloucestershire. The company is to start work at the site next month.

The plant will employ thermal waste treatment technologies in DyNOR and LEAP, a new 'low excess air process', developed by Hitachi Zosen Inova.

The DyNOR system is designed to reduce the nitrogen dioxide emissions to 150 mg/Nm3 at minimal ammonia slip and well below current EU limits. With LEAP the efficiency of combustion is increased while the CO and NOx emissions are still reduced.

CEO of SITA UK, David Palmer-Jones said: “We chose Hitachi Zosen Inova to deliver the energy from waste technology at the Severnside Energy Recovery Centre because of their long-standing track record and proven technology, but also because of their ability to innovate to ensure that the facility is at the forefront of efficiency and environmental performance.”

SERC will be Hitachi Zosen Inova’s seventh turnkey plant contract in the UK over the last seven years.

A consortium of SITA UK, Scottish Widows Investment Partners (SWIP) and Itochu Capital signed the corresponding 25-year contract with the West London Waste Authority on 27 Nov to convert up to 300,000 tonnes of municipal waste material to energy each year.  

Under the contract, waste material that the 1.6 million people living in the London boroughs of Brent, Ealing, Harrow, Hillingdon, Hounslow and Richmond-upon-Thames have not been able to separate for recycling will be transported by rail to the Severnside Energy Recovery Centre.

The facility will produce 34 megawatts of electricity, enabling the West London Waste Authority to divert 96 per cent of its waste from landfill and is expected to save two million tonnes of CO2 equivalents over the duration of the contract.

SERC, which will also include an on-site facility for the recycling of bottom ash, is expected to be completed and under the operation of SITA UK by mid-2016.


SITA inks £760m London energy-from-waste contract

By PIM Editor - A SITA UK-led consortium has signed a £760m contract with the West London Waste Authority (WLWA) to manage and process up to 300ktpa of residual municipal waste from several London boroughs over 25 years. 

SITA UK along with its partners Scottish Widows Investment Partners and the ITOCHU Corp., will design, finance, build and operate infrastructure manage and process up to handle residual waste from 1.6 million people.

Non-recyclable refuse from the boroughs of Brent, Ealing, Harrow, Hillingdon, Hounslow and Richmond-upon-Thames will be transported by rail to a 34MW facility at an energy recovery centre to be built  in South Gloucestershire.

According to SITA, the Severnside Energy Recovery Centre (SERC) will enable WLWA to divert 96% of its waste from landfill. Construction work is expected to begin by the yearend, with completion due in 2016.

The centre is expected to create 53 permanent jobs once built and employ around 200 during construction. Two rail-linked waste transfer stations, at Transport Avenue and Victoria Road, will also be modernised as part of the project.

The scheme has attracted support from the UK's Green Investment Bank (GIB), which was set up to help mobilise private investment in 'green' UK infrastructure projects.

GIB will invest £20 million of the senior debt alongside a lending club of Credit Agricole Corporate & Investment Bank, Bank of Tokyo-Mitsubishi UFJ Ltd, Sumitomo Mitsui Banking Corp. and Mizuho Bank. 

 "This is a model investment for us," said Shaun Kingsbury, chief executive officer of the GIB. "With this project, every £1 of GIB investment brings £11 of other capital, much of it from international investors."


Cory Environmental opens first AD plant

UK recycling, waste management and energy recovery company Cory Environmental has unveiled its first anaerobic digestion facility at Weston-Super-Mare.

Employing Landia’s GasMix system, the plant has capacity to generate up to 500kw of energy per hour for on-site use and export to the National Grid,

The digester can handle 12,000 tonnes/year of food waste, around 7,500 tonnes of which is part of a seven-year waste treatment contract with North Somerset Council.  

A Cory team acting as main contractors, as well as plant and site designers managed to achieve energy production just 18 months after planning consent was gained.

The Landia system helps optimise gas generation as it mixes the digester throughput effectively at a consistent temperature, said Alistair Holl, Cory’s director of resource management. Other selection criteria, he noted, included reliability, ease of maintenance and service support. 

Comprising three 18.5kW chopper pumps and a self-aspirating system that reduces solids to produce more methane in a much shorter time period, the system has no mechanical equipment inside the digester. It is also said to offer energy savings as it only has to run for a maximum of 30% of the installed capacity.

Landia chopper pumps at other sites and are also in use in eight other process and storage tanks at Weston-super-Mare - performing process mixing and transfer functions. 

Cory will soon be working towards the second phase of the development, which will see an upgrade of the plant to a minimum of 1MW.  


Imperative Energy to build £70m biomass CHP plant

Manchester-based renewable energy company Imperative Energy Ltd (IEL) is to build a 17.75MWe biomass fired CHP plant at Pendigo Way, Solihull. 

The £70-million project, which gained planning consent from Solihull Metropolitan Borough Council on 11 Nov, will generate heat and power for a number of local energy users.

The project will crate 140 jobs during the 30-month construction phase, and 25 jobs to operate the plant, said IEL's managing director Joe O’Carroll Over the life of the plant £420 million will be spent on local good and services, he added.

The project will use around 130 kilotonnes of local sourced wastewood which is normally landfilled or exported for energy generation in Scandinavia.

The Environmental Infrastructure Development Co. (EIDC), a shareholder in IEL, and is managing the structuring and project finance aspects of this exciting development.

As EPC contractor, IEL has selected Chippenham, UK-based M+W UK, part of the M+W Group - an 8,000 employee global engineering, design and construction company with an annual turnover of over €2.3 billion.

EL has over 60 biomass plants across Ireland and the UK and its major shareholder is the Northwest Fund for Energy & Environment. The fiund is backed by the European Investment Bank and European Regional Development Fund and managed by 350Investment Partners LLP.



Waste heat from the Tube to warm London homes

Waste heat from London Underground tunnels and an electrical substation is to be used to help warm homes and cut energy bills in the Borough of Islington.

The project – the first of its kind in Europe - is a partnership between Islington Council, the Mayor of London, UK Power Networks and Transport for London.

The scheme will be run through Islington Council’s innovative Bunhill Heat and Power heat network, which already supplies more than 700 homes in Islington with heating.

The Bunhill heat and power, which run by Islington Council, opened in November 2012 and produces heat for hundreds of local homes. The heat network is currently fed by a CHP energy centre which produces both electricity and heat.

Under the new project, the network will be expanded to capture and utilise two local sources of waste heat, one from a LU ventilation shaft and the other from a sub-station owned and operated by UK Power Networks. The expansion will add a further 500 homes to Islington's heat network.

The network has 1.4 miles of pipes which carry the heat to local housing estates and a leisure centre.  Heat from the London Underground will be captured and added to this network.

London Underground generates large amounts of heat, which will be captured from a nearby Northern Line vent and piped into the heat network which warms local homes.

The Islington project is part of the larger EU co-funded CELSIUS project - a partnership of EU cities and aims to demonstrate how the potential of district heating systems within cities. The project has 21 partners from 5 cities: Gothenburg, Cologne, Genoa, London and Rotterdam.

This demonstration project has been funded by £2.7m from Islington Council who own and run the network, and £1m from the EU, along with backing from the Mayor, UK Power Networks and Transport for London / London Underground.

UK Power Networks is now studying the feasibility of capturing waste heat from one of its high voltage electricity substations and using it to warm local homes for the first time.

"If it is successful there could be potential to replicate this ... in other parts of the capital because we have electricity substations dotted throughout London which keep the lights on for millions of homes and businesses," said Martin Wilcox, head of future networks at UKPN.