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Wastecycle - Wood Waste Boiler Technology Review and Due Diligence
Brief - WRM were appointed by Wastecycle Ltd to support the development of a Grade C wood waste boiler and SRF dryer at their Colwick site. Wastecycle had elicited several supplier quotes that varied considerably in terms of the proposed solution, performance claims, and depth of quote information. WRM’s scope involved a technical review of the supplier quotes to assess their robustness, along with a comparison of offers that factored in the variety of quotes received.
Solution - WRM applied our understanding of waste combustion systems, drying approaches, and the regulatory context to undertake a review process that first involved consideration of quote information received from suppliers.
Interviews were then held with supplier representatives which enabled our team to field questions, scrutinise proposals and check the robustness of assumptions. A further phase of information review was conducted prior to a report being produced that advised Wastecycle on which quotes could be progressed in commercial discussions.
The review undertaken by WRM examined a number of factors including:
- Suitability for feedstock - The work scrutinised the ability of proposed solutions to accept a challenging and variable feedstock. Particular attention was given to pre-processing requirements relative to Wastecycle’s grade C wood waste arisings.
- Robustness of technology - The review examined the suitability of the technologies to the demands of low grade wood combustion. This included features to prevent or minimise clinker formation, refractory design, and examination of life cycle replacement assumptions.
- Mass balance - All assumptions were checked to verify system sizing and alignment to the heating demands of Wastecycle. This included examination of the quantum of RHI eligible heat.
- WID Compliance - Combustion and emissions filtration requirements were examined, and suppliers were pressed to provide emission testing data from previous projects for our teams analysis.
- Supplier experience - The track record in delivering similar projects was checked, specifically in relation to low grade woods.
Next steps - The work delivered by WRM identified four suppliers who were potentially suitable development partners for the project, and provided the basis for a competitive tender to be released by Wastecycle.
Customer Testimonial - "The SRF drying/waste wood development is an important initative for Wastecycle and therefore it was important that we made the right decisions based on factual information following a robust due diligence of the technology providers. We are satisfied that WRM provided us with the confidence to make the right choices." - Kevan Wilcockson, Comliance and Development Director, Wastecycle Ltd.
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