Alternative fuels for power & heat

It is a fact that humanity must reduce its reliance on fossil fuels and embrace renewables, including wind and solar. Important among these renewables are Waste to Energy (WtE) and BioEnergy which provide steady, reliable generation of heat and power.

Why use Alternative Fuels for Power or Heat?

The generation of electrical power can be through traditional combustion cycles, or with more advanced gasification / pyrolysis technology.

Waste to Energy can be generated using waste derived fuels such as RDF (Residue Derived Fuel) & SRF (Secondary Recovered Fuel). These are produced from waste recycling centres as a waste product of unrecyclable paper, cardboard, plastics and other combustible materials. These materials are diverted from landfill and using them as fuel can provide a quick Return on Investment as they can attract an attractive gate fee due to Landfill taxes. Effectively the fuel is either low cost or is a generator of revenue as you are paid to receive the fuel (gate fee).

Biomass power can be produced utilising Virgin Wood, Waste Wood (unrecyclable Grades B, C & D), Straw and other agricultural by-products.

Benefits of greater efficiency

A key benefit of Waste to Energy and BioEnergy is that they can be designed and built as Combined Heat & Power plants (CHP), generating electrical power and industrial process / district heating.

This is an extremely efficient way to produce energy and is widely used in small to medium plants across Europe.

  • Baseload Power, the energy output does not fluctuate due to weather conditions
  • Can be generated close to the consumer, reducing transmission losses
  • CHP can provide energy efficiencies > 90%
  • Energy can be generated from locally sourced fuel

Extensive Project Portfolio

Saxlund have a hard to match track record of working with Energy companies and Project Developers to design and deliver Alternative Fuel Handling systems for Waste to Energy plants. We understand the requirements and issues that clients have and provide robust, flexible systems able to handle the difficult and variable fuels utilised to provide systems that include:

  • Reception of fuel
  • Screening
  • Conveying
  • Storage & discharge
  • Weighing / feeding to boiler / gasifier

Having Saxlund as your delivery partner will provide you with proven engineering team, with industry leading technology. We can deliver systems that can handle different fuel types giving future flexibility as fuel availability changes.

Return on Investment

With performance and availability being essential with such a key part of investment in Waste to Energy (WtE), obtaining a system that provides these requirements will allow a quick Return on Investment and contribute to carbon reduction commitments.

Economic Benefits of Waste to Energy

With the adoption of Alternative Fuels such as RDF, SRF and shredded plastics, Energy companies are seeing the benefit of using lower cost fuels, and in countries / regions with a Landfill Tax, the cost of the fuel can be negative! The Energy company is paid to dispose of waste derived fuel, diverting this from landfill and using this in place of fossil fuel.

The principles of Waste to Energy (WtE) are now well-known.

With pressure on land use, the threat of toxic contamination and wider ecological implications place a greater imperative on the development of technologies to meet sustainable goals et globally. Europe’s goal of 55% greenhouse gas emission (GHG) reduction by 2030 and climate neutrality by 2050 and the WtE industry is committed to help achieve these targets across Europe.

Remo Schulz
CEO, Saxlund Germany

Types of Alternative Fuel for BioEnergy and Waste to Energy

  • Alternative fuels are generally processed unrecyclable materials, which have been diverted from landfill or are an agricultural waste product.
  • The benefits are that these fuels will tend to have a very low (or negative) cost. Additionally, they will displace emissions from fossil fuels.
  • Alternative fuels can help to reduce CO2 emissions. For example, alternative fuels can deliver indirect CO2 savings and those that contain a biomass part, which can be considered CO2 neutral, contribute to reducing overall CO2 emissions.
  • By their nature, these fuels can be variable in quality, behaviour, moisture content and calorific value. In other words, they will be difficult to convey, store, discharge and accurately dose into the fuel stream.

Fuels that are widely used include:

  • Virgin Wood
  • Refuse Derived Fuel (RDF)
  • Solid Recovered Fuels (SRF)
  • Waste Wood
  • Tyre Derived Fuel.
  • Meat & Bone Meal (MBM)
  • Impregnated Sawdust
  • Agricultural Waste
  • Sewage Sludge
  • Profuel
  • Shredded Plastics
  • Oil Seeds and Sludge
  • Chemical Residues

Related case studies

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