SHBEC will be built on available land within the boundary of the SHBPS site on South Marsh Road, near Stallingborough, between Immingham and Grimsby, in North East Lincolnshire.
The Main Development Area for SHBEC is located to the east of the existing CCGT power station and comprises largely undeveloped land. Cooling water pipelines (associated with the CCGT power station) and other utilities cross the Main Development Area below ground and these have influenced the layout of the EfW power station.
The remainder of the Site (outside the Main Development Area) comprises the operational SHBPS site. Some of the land within this area will be used in connection with SHBEC for construction laydown purposes, ecological mitigation and access.
The Site is located within an area that comprises a mix of industrial and agricultural land use with the Humber Estuary to the east. The nearest residential properties are located approximately 1 kilometre west of the Site on South Marsh Road. The nearest settlement is the village of Stallingborough over 2 kilometres to the south-west.
The Site is accessed from both the west, along Hobson Way, and from the north, along South Marsh Road and has good access to the A180, which avoids traffic having to pass through residential areas.
The EfW Power Station
SHBEC will comprise a number of buildings and structures. These include a fuel reception hall, fuel storage bunker, boiler hall, a flue gas treatment facility, emissions stacks, turbine hall, air-cooled condensers and an administration block. There will also be vehicle weighbridges, internal access roads and parking, a heavy goods vehicle (HGV) holding area and an electrical substation.
SHBEC will operate 24 hours per day, seven days per week with occasional shutdown periods for planned maintenance work. All RDF will be delivered to the Site by road, using HGVs, via a new access road created from South Marsh Road.
RDF will be combusted within SHBEC at temperatures above 850°C. The heat created will be used to produce steam, which can then be used to generate electricity using a steam turbine. Some of the steam could potentially be used to provide heat to local users. Any non-combustible material, such as glass, metal or stone, will be collected at the end of the combustion process and sent off site for reuse and recycling where possible.
Emissions from SHBEC will be cleaned by a sophisticated flue gas treatment facility before being released into the atmosphere, and will be carefully controlled and monitored to ensure that they meet the stringent limits set by the Environment Agency and relevant legislation.
The EfW process is illustrated in the diagram below.
Why is another application being submitted for SHBEC?
Since the Planning Permission was granted for the Consented Development in April 2019, EPWM has been assessing potential opportunities to improve SHBEC’s efficiency. It is now proposed that SHBEC would have a gross electrical output of up to 95 MW. In order to achieve this, the following works (additional to those which have been approved by the Planning Permission) would be required:
- Extended air-cooled condenser – an additional row of fans and heat exchangers will be added to the air-cooled condenser.
- Increased cooling capacity for the generator – to allow the generator to operate at an increased load and generate more power.
- Increased transformer capacity – to allow the generator to achieve up to 95 MW.
- Ancillary works – the above works will require ancillary works and operations, such as new cabling or pipes.
It is important to note that EPWM is not seeking any changes to the maximum building dimensions or fuel throughput that were approved by the April 2019 Planning Permission and assessed as part of the Environmental Impact Assessment that accompanied the planning application submitted to NELC. This is because of the conservative assumptions used in the assessment of impacts from the Consented Development.
As the Proposed Development would have a gross electrical output of more than 50 MW, it is classed as a nationally significant infrastructure project (a ‘NSIP’) under the Planning Act 2008. This means that it requires development consent from the Secretary of State (SoS) for Business, Energy and Industrial Strategy (‘BEIS’) before it can be constructed and operated. The application process is administered by the Planning Inspectorate (‘PINS’). EPWM anticipates submitting its application for development consent to the SoS for BEIS in Q1 2020. Development consent is granted by the SoS in the form of a ‘Development Consent Order’ (a ‘DCO’). Information on the development consent application process can be found here.
Why is SHBEC needed?
The UK needs to develop new low carbon electricity generation capacity to replace its ageing coal-fired and nuclear power stations, which are in the process of closing down and being decommissioned. There is also a need for alternative forms of generation to renewable technologies that can provide a back-up for when the amount of renewable generation is limited by weather conditions (such as during low wind speeds or lower levels of solar energy). This is important to ensure that UK homes and businesses benefit from secure and reliable electricity supplies. The need for new electricity generation capacity, such as that which will be provided by SHBEC, is set out in government policy – the Overarching National Policy Statement for Energy (‘EN-1’) and the National Policy Statement for Renewable Energy (‘EN-3’). These documents can be found here.
SHBEC will also make a positive contribution to waste management by making use of waste material that would otherwise go to landfill or be exported overseas. The newly adopted North East Lincolnshire Local Plan (2018) identifies that there is a need to ensure that there are sufficient waste management facilities within the Borough to meet the requirements of the area. Within the Local Plan the justification for Policy 49 ‘restoration and aftercare (waste)’ identifies that waste disposal through means such as landfill is the least desirable waste management option available.
What could the EfW Power Station look like?
Below is an image that provides a representation of what the SHBEC could look like. The detailed design of the EfW power station, including the types of materials used, will require the approval of NELC.
Environmental Impact Assessment
An Environmental Impact Assessment (‘EIA’) was undertaken in 2018 to consider the likely effects of construction, operation and eventual decommissioning of the Consented Development, as part of the planning application process. This EIA has informed the development of impact avoidance and mitigation measures, which have been incorporated into the SHBEC design, including:
- air emissions during operation will be carefully controlled through an Environmental Permit regulated by the Environment Agency and the stack height will be set at 100 m to disperse emissions effectively;
- piling will be controlled during construction to avoid disturbance of water birds using adjacent fields for roosting during winter;
- species-rich grassland will be created within the Site; and
- traffic management plans will be implemented during construction and operation, including designated HGV routes.
A revised EIA is now being undertaken for the Proposed Development. This will include an assessment of the effects of the Proposed Development compared to no development, and also a comparison of the effects of the Proposed Development against the Consented Development.
The topics to be included in the revised EIA will match the previous EIA and take account of the EIA Scoping Opinion issued by PINS.
The EIA scope includes assessment of effects on air quality, noise and vibration, traffic and transport, ecology, landscape and visual amenity, geology, hydrogeology and land contamination, cultural heritage, water resources, flood risk and drainage, socio-economics, and waste management.
The EIA will also include an assessment of cumulative effects with other developments that are proposed in the local area, such as cumulative air quality and transport effects.
It is anticipated that construction of SHBEC (up to 49.9 MW gross electrical output, pursuant to the Planning Permission) will commence during early 2020. The construction phase is expected to last for approximately 36 months, with the EfW power station entering operation in early 2023. If development consent for the Proposed Development is granted in mid-2021, the additional works would also be completed within the same construction programme.
The impacts of the construction phase will be carefully managed through a Construction Environmental Management Plan. This will include management measures relating to the storage of materials, surface water runoff/drainage, construction traffic and working hours and also measures to ensure a clean and safe working environment.