Biomass power and heat plant Welshpool, UK
Type de client :
Customer type :
Range : Low temperature cogeneration
Thermal power : 750 kW
Electric power : 65 kW
Fluid : Superheated water
Commissioning : November 2018
Fuel : ligneous fraction of green waste, agricultural residues
Recover litter and green waste into energy
The client is an agricultural contractor. One of its activities consists in recovering and treating soiled poultry litter and green waste used as fuel for the installation. The plant turns them into energy.
The recovery provided by the plant is twofold: on one hand, the plant produces electricity – thanks to an 100 kWe ORC (Organic Rankine Cycle) – which is sold onto the network, through a purchasing obligation scheme. On the other hand, the co-generated heat is recovered for drying wood chips and forest chips as well as supplying a small local heating network. Thus, all of the energy contained in these heterogeneous materials is recovered through to the plant.
Rôle de Mini Green Power
Mini Green Power's role
Adapt the technology to the technical constraints of the client
Mini Green Power adapted its staged combustion technology to the customer’s existing installation by revamping the boiler. By doing so, the customer was able to expand the range of fuels to feed its installation.
The installation was started in November 2018 by Mini Green Power, which has since provided remote operating assistance. From time to time, Mini Green Power teams go on site to help improve the performance of the installation with the help of the operator.
Focus sur quelques spécificités techniques
Focus on some technical specificities
Autonomy of the biomass silo: 48 hours
Feed type : auger
Ergonomic control command developed by Mini Green Power
Filtration type: ceramic filter
Energetic fluid: superheated water 110°c
Electricity production: ORC General Electric 100 kWe
Ventilated moving floor dryer
The installation also provides the customer with a multiple source of income: remuneration linked to the collection of plant and agricultural residues, remuneration linked to the service of drying wood chips, as well as remuneration linked to the sale of electricity. Lastly, the installation allows the operator to save money on heating their premises.
The model makes it possible to recover waste into energy in short circuits under good environmental conditions. This local recovery reduces the pollution that would have been generated by trucks transporting waste over long distances and provides renewable energy to the electricity grid.
Finally, the customer contributes at the same time to developing the wood energy sector through its activity of selling forest chips made possible by the production of heat from the plant.