Mythbusters
Frequently Asked Questions
Acronyms
In an effort to bring you the truth, we've assembled this list of common misconceptions and myths.
Review our collection of frequently asked questions surrounding the MVV Medworth project. If you can't find the answer to your question, please get in touch.
Review a collection of common acronyms surrounding the MVV Medworth project.
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THE MYTH
Our properties will be devalued and unsellable due to the incinerator.
THE TRUTH
Studies have shown that property values may fall during a construction project of any sort, but they will recover again afterwards.
THE MYTH
Unsafe toxic particles will escape from the chimneys.
THE TRUTH
Whilst we can’t say for certain that there will be zero particles, we will be working well below a safe set level.
THE MYTH
The toxins will spread across 25 miles.
THE TRUTH
We can assure you that your fears are unfounded. The levels of Dioxins, heavy metals, etc… are with an acceptable level, and our Emissions Policy is tightly managed by the EA. Human health risk assessment takes the worst-case scenario for emissions for someone who lives near the facility, grows their own food or rears their own animals. The air quality assessment has confirmed that there is no risk.
THE MYTH
You will be burning waste from Europe.
THE TRUTH
We will not be importing or burning waste from Europe, and we are actively helping to prevent waste being exported from the UK.
THE MYTH
Toxic chemicals must be coming out of the chimneys.
THE TRUTH
We take into account things like ambient weather conditions and a generally prevailing south westerly wind. The chimney height is calculated to provide the appropriation distribution. The environmental Permit governs these levels, and we work to even lower/safer levels than permitted.
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►Air Quality
what is the impact on local air quality?
EfW accounts for a very small part (0.05%) of total particulate emissions in the UK annually (Environment Agency and National Atmospheric Emissions Inventory). Thanks to state-of-the-art flue gas cleaning, our power facilities comply with the very strict European regulations for clean air.
what will you be doing to ensure residents are not breathing in harmful toxins?
Flue gases will be closely monitored and regulated by the Environment Agency (EA), with weekly emissions data published on our website. The facility uses advanced cleaning systems to reduce harmful substances, including:
- neutralising acid gases,
- reducing nitrogen oxides, and
- removing dioxins and heavy metals.
These processes ensure that emissions stay within strict limits, protecting both the environment and public health.
what safety measures are designed into the facility to ensure air quality protection, even when there’s an equipment failure?
The Medworth EfW CHP facility is designed with safety as a top priority. It includes advanced monitoring systems that track every stage of the process, from combustion to flue gas filtration. This ensures that emissions remain within safe limits, even if there is a failure in the equipment.
What is the technology and timeframe for carbon capture?
MVV have a pilot plant in Mannheim, using a hot potassium technology and PC is due to visit a pilot plant in the UK (not an MVV one) later this year. MVV are exploring the development of the Bacton pipeline in Kent, in collaboration with other emitters. There are two seed-funded experimental projects in the north of the UK which have received substantial government funding and are both using amine systems. It is clear that these still need fine tuning. The timescale for implementation in the UK, set by the government, is 2030-2035 and business cases are being considered by MVV and others. This project is decarbonisation ready.
will air quality monitoring results be made available to the public?
MVV will voluntarily publish weekly emission data for the Medworth EfW CHP facility on our website. This will include a direct comparison of average daily values with legal limits. The Environment Agency (EA) independently monitors the facility, and if any limits are breached, they have the authority to shut down the plant and impose fines. All data is logged and reported to the EA.
►Construction
Do you have a plan for project timelines and milestones?
Project plans and milestones will be communicated when confirmed.
Will recycled materials be used in construction?
Secondary aggregates will be used for construction and these might be include Incinerator Bottom Ash Aggregate (IBAA), which can be used under certain conditions but not in structural concrete.
If there are any issues during construction, what can we do?
An information board will provide contact details for enquiries and complaints.
►Energy from Waste
Why is EfW a better solution than landfill?
Landfill sites produce methane, which is 25 times worse than CO2 as a greenhouse gas and exporting waste requires it to be shredded, baled and transported far greater distances than treating it locally. Shredding, baling and transport all generate more CO2, which can be avoided with a local solution.
where will the waste come from?
The Medworth EfW CHP Facility waste will come from the region. Waste companies will want to deal with waste as close to its source as possible, to control transport costs. We will not be importing waste from overseas.
what wastes will you be processing?
We will process non-hazardous household and business waste from the region that would otherwise go to landfill or be exported. Only waste that meets strict environmental standards will be accepted. The main types of waste we’ll handle include mixed municipal waste, refuse-derived fuel, and waste from mechanical treatment processes. All waste accepted will be fully documented and managed according to environmental regulations.
►Environment
how loud will the turbine be?
From outside the turbine will be very quiet because it will be housed inside an insulated building. This is quantified in the Environmental Impact Assessment.
will the facility attract pests and vermin?
All responsible waste sites have pest and vermin control measures in place and this will be the case for the Medworth EfW CHP facility. Good housekeeping in terms of litter and odour control will ensure that additional pests and vermin will not be attracted to the site.
What will you be doing to ensure harmful toxins are not impacting local farmland and produce?
Dioxins, which can form when certain materials are burned. For this reason, a minimum burn temperature of 850°C is set for waste incineration; our facilities burn at around 1000°C. This breaks down harmful compounds. The process also uses time, temperature, and turbulence to ensure dioxins don’t reform. Additionally, filter bags capture tiny particles, and activated carbon is used to absorb any remaining harmful particles before they are released into the air.
will the facility smell?
Off-site odour will be managed through a number of operational measures, including good housekeeping. Waste deliveries will take place inside an enclosed tipping hall to contain any smells. Any air from the tipping hall will be drawn into the combustion chamber and burned. Fresh air will also be drawn into the hall to prevent odours from escaping.
will environmental impacts be assessed?
An Environmental Impact Assessment (EIA) has been done for both the construction and operation of the facility. This identifies potential environmental impacts and, where necessary, suggest ways to reduce them.
Will all the wood along New Bridge Lane be cleared or will some be left to incorporate into landscaping and screening?
Only trees that impede construction or operation have been removed and the remaining trees will form part of the final landscaping and screening.
►Funding
why can’t money be spent on improving recycling rates instead?
This is a matter for local and County Council. It is worth noting that MVV do not target municipal recyclable waste, and as such our facilities have no direct impact on municipal recycling rates in the county. EfW competes with landfill, not recycling.
What community funding will be available?
Through the section 106 and 111 agreements, two funds have been established. The 106 funding is for Cambridgeshire County Council to improve accessibility for non-motorised users (e.g. bridleways and footpaths). The 111 funding is managed via an external agency (Cambridgeshire Community Fund) and local groups and organisations can apply for this.
►Local Community
How many staff will there be in total?
There will be 42 members of staff in total.
How are you educating people?
We employ full-time Community Liaison Managers to deliver waste resources and engineering education through site visits, workshops and out-reach. We work closely with local councils to ensure consistency with the local waste management approach.
If most of the construction will be undertaken by sub-contractors, how will locals get jobs?
MVV have arranged a specific event, in conjunction with the Engineering, Procurement and Construction (EPC) contractor, for local companies to discuss opportunities arising from the project.
What benefits will the residents of Wisbech see?
Benefits include: 1) Local foot and cycle path improvements, including connectivity between green spaces, 2) Education and training opportunities, including work experience, placements, internships and apprenticeships, 3) Providing a sustainable alternative to landfill/export of residual waste (current situation), 4) Jobs for local people (direct and indirect) both during construction and operation and 5) A community fund (to be managed by Cambridgeshire Community Foundation) which is geographically restricted to Wisbech, specifically a 5km radius from the chimneys
Will steam from the incinerator be used commercially?
Heat will be available from the start of operations but we are not able to comment on commercial arrangements or discussions, which are ongoing.
Can you outline your vision for an education programme at the next meeting?
We will be happy to major on that topic and share key points from the approved Employment and Skills Strategy as well as MVV’s experience at the other facilities.
Who will use any electricity generated?
The electricity generated will be sent to Walsoken substation via underground cable (not pylons).
►Local Infrastructure/Transport
Will vehicle tracking be used for routing control and monitoring?
GPS tracking is now commonplace and MVV’s Community Liaison Manager will be the point of contact for concerns over vehicle movements.
Will you clean Algores Way if it gets muddy?
Yes. There will be a wheel wash station for all vehicles leaving the construction site with contact details for the developer and our Community Liaison Manager available.
Has the current condition of roads in Weasenham and Algores Way been inspected. The potholes are extreme before all the expected lorries turn up?
Traffic assessments were undertaken as part of the DCO application; national and local highways departments were statutory consultees to that process and have commented. Dilapidation surveys form part of the preliminary works for our project.
How will the construction of the incinerator impact traffic on Weasenham Lane and Algores Way?
Before we start the access improvements at New Bridge Lane we will install the acoustic fence along a section of New Bridge Lane. Some access along Algores Way will be necessary to establish the temporary construction compound and to access the main site. This will account for no more than one third of traffic.
how will you stop facility traffic impacting local work and school traffic?
An operational traffic and transport plan will be developed to minimise peak hour deliveries and ensure that delivery routes do not conflict (where reasonably practicable) with work and school traffic. Vehicles delivering waste will follow their usual protocols for dealing with congestion.
Who will carry out any road repairs?
The current condition of the roads and responsibility for repairs is a matter for Cambridgeshire County Council, as the local highways authority.
Will your facility prevent the Wisbech to March rail link from being re-instated?
No, the facility won’t affect the re-instatement of the railway. We would welcome it as it would benefit the whole community and help support our broader infrastructure needs.
How many vehicles will come on site and what route will they take?
Vehicle numbers and routes will form part of the Construction Traffic Management Plan, which will be published on our website once approved by the Cambridgeshire County Council.
Why can’t MVV get access to the Medworth site directly from the A47 into New Bridge Lane?
Direct access from the A47 was explored in the early stages of the planning process but was deemed unsuitable by National Highways who did not want an additional roundabout on the A47.
Will lorries run night and day?
The facility gate hours will be 7am to 8pm and no lorries will come through Wisbech.
What will happen if there is a road closure i.e. an accident?
The lorries will either wait or turn around and go back to their depot. The contracts we set up will not allow any lorries to travel by other routes. Operators nowadays have intensive tracking of their drivers including where they go, when they stop and how fast they are travelling.
►Location
How are you able to use land that you don’t own?
MVV would prefer to negotiate with landowners but do have compulsory purchase powers over some land, granted under the Development Consent Order, if required. Formal notices can be issued to enter/occupy land under temporary possession powers while we continue to negotiate.
►Monitoring
Will stack particulates emissions be monitored continuously or estimated?
We use continuous emissions monitoring systems at all of our facilities, with two sets of equipment installed; one in service and one on standby to ensure full 24/7 real-time recording. Particulate forms part of the dust figure and this, along with other compounds, is reported weekly on our website for all operational facilities.
Will you report exceedances?
Yes, operators are required to report these to the Environment Agency. In addition, data from all our facilities is published in our website.
►Plymouth
Why did the Plymouth Herald report multiple problems when it first came online?
The headlines from the Plymouth Herald were often alarmist and did not reflect the full context. Many of the reported issues were either exaggerated, misinterpreted, or related to normal commissioning processes. Below are responses to specific claims made in those reports.
Did the Plymouth incinerator cause the highest pollution levels ever recorded in a housing area?
No. This claim was based on misleading graphics from Plume Plotter, which altered colours to suggest dangerous pollution levels. The actual measured levels were below national air quality standards. We installed ambient air quality monitoring for oxides of nitrogen and particulate matter, and quarterly reports were made publicly available.
Why did the incinerator release thick steam during testing?
Steam is intentionally blown through the pipes before it is sent to the turbine to remove dirt and dust from construction. This prevents turbine blade damage and is a standard procedure.
Did a 3 a.m. shutdown wake residents?
Yes. This was due to operator error, triggering an emergency shutdown. Safety systems took over, which involved releasing steam into the atmosphere. The operator responsible no longer works for the company.
Did the incinerator produce an unacceptable smell?
Yes, in the early days. Airflow issues and small leaks between cladding and concrete sections allowed odours to escape. These were fixed by installing louvres, reducing vent apertures, and sealing the outer building.
►Process
Will the waste be stored inside?
Yes, and air for combustion will be sucked from outside into and through the tipping hall and waste bunker.
What will happen to the bottom ash that’s produced?
Incinerator Bottom Ash (IBA) will be transported by road (not barge or sea) to an existing ash processor.
Are there filters (like muslin) at the top of the chimneys?
No, we changed our process about five years ago. The filters are 16m long and made from Gortex. There are around three thousand of them per line and they work like hoover bags in reverse, as they collect particles on the outside.
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Acronym | Description |
---|---|
AQMS |
Air Quality Monitoring System
|
DCO |
Development Consent Order
|
EPC |
Engineering, Procurement and Construction
|