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Freedom Green Energy
Ffrwdgrech Industrial Estate
Ffrwdgrech Road
Brecon, Powys, LD3 8LA
0333 700 0275

About Wood Biomass

Wood Biomass is a renewable, cost-effective and sustainable source of fuel that is capable of generating energy and heat with a carbon neutral impact.

closed carbon cycle diagram

Biomass fuel from wood has what is known as a ‘closed carbon cycle’. This cycle achieves a carbon neutral way of creating heat. During its life, a tree will absorb CO₂  from the atmosphere and release oxygen back. When the trees are harvested and burned, they only release back into the atmosphere the amount of CO₂ that they absorb. Often when a tree is harvested for fuel, another may be planted in its place, completing what is commonly known as the Closed Carbon Cycle.

why biomass?

Installing a Biomass heating system is considered to be one of the best ways to reduce the carbon footprint of your home or commercial property. If your aim is to reduce your carbon emissions and switch to a clean and renewable source of heat, then Biomass is for you.

Government Grant -Boiler Upgrade Scheme

The government is providing grants to encourage property owners to install low carbon heating systems such as biomass boilers, through the Boiler Upgrade Scheme (BUS). These grants can help property owners overcome the upfront cost of low carbon heating technologies.

The scheme is open to domestic and small non-domestic properties in England and Wales. It runs from 2022 to 2025. Eligibility criteria apply.

The scheme is open to domestic and small non-domestic properties with:

  • an installation capacity up to 45kWth (this covers most homes)
  • a current energy performance certificate (EPC), with no outstanding recommendations for loft or cavity wall insulation
  • Check full eligibility criteria at website
Learn More at

Save money by going green.

CO2 emissions

Biomass Pellets are considered to be almost carbon neutral as a fuel source, and as a result, biomass systems have a carbon emission factor of nearly 7 times less than the equivalent natural gas fired systems and nearly 10 times less than and oil fired system.

Current 2010 building regulations present the CO2 emission factors as follows:

Natural Gas: 0.194kgCO2/kWh0

Electricity: 0.517kgCO2/kWh0

Heating Oil: 0.274kgCO2/kWh0

Biomass Pellets: 0.028kgCO2/kWh0

Biomass Woodchip: 0.009kgCO2/kWh0

Pellet vs. Wood Chip

Generally, Biomass fuel comes in two types; pellets and wood chip.

Wood chip is the cheaper of the two fuel types, however wood chip requires more storage space (0.8MWh/m3) and produces more ash (1% by weight). Wood chip systems require more regular handling in comparison to the automated pellet systems and although the fuel needs to be manually tipped into a store, the actual system feed is automatic.


Biomass pellets are made from untreated wood, compressed under heat and pressure, making them more expensive that wood chip fuel. However, they are readily available and uniform in size and shape, Pellets also require less physical space (3.2MWh/m3) than wood chips. They are free flowing and easily delivered into the store and as a result, they make the perfect fuel for a fully automated system and produces less ash (0.1% by weight).


Visit us at the 'Installer Show 2024', Birmingham NEC 25-27th June. Stand 5B28