Maccy Biochar is a Task Group of the Macclesfield Community Association Inc.



  • Receive tree litter and other organic debris (eg. prunings, off-cuts, woody weeds, etc) from local households, landowners, businesses and Council; 

  • Produce and sell biochar in bulk to retailers for local gardens, local horticulture, agriculture and other local industrial uses;

  • Sequester carbon and accumulate carbon credits;

  • Trade carbon credits with local consumers of non-renewable energy (eg: to offset local electricity consumption, gas consumption and motor vehicle use);

  • Conduct training courses on biochar;

  • Conduct guided tours of the Centre;

  • Demonstrate that a small community can make an important contribution to offsetting and reducing its greenhouse gas emissions.

Why Biochar?


Biochar is a form of charcoal and is good for the soil, good as an animal feed supplement, has numerous industrial uses and combats climate change by sequestering carbon.


Our drop-off site on Shady Grove road

Our drop-off site on Shady Grove road

2019 - 21
SCOREBOARD at 30 NOV. 2021*
​BIOCHAR PRODUCED**                                        40,103  Litres
CARBON CAPTURED                                                6,223  Kg
NET CO2 REMOVED                                              21.51 Tonnes
ELECTRICITY OFFSET                                             49.751 MWhr   
* Based on 3rd party biochar analysis dated 28/1/21
​** Includes 6670L made by members for private use.


In December 2018, two Macclesfield residents,  Kelvin Williams and Brian Lewis started discussing the merits of starting up a biochar centre in Macclesfield. There was mutual agreement that such a Centre, if run as a not-for-profit community enterprise, could have real benefits for the community and would demonstrate that individuals can do something about Climate Change. 


Brian prepared an outline of a proposal for a Community Biochar Centre and circulated it to individuals, community groups and the Mt. Barker Council for comment. Word of the proposal reached the Weekender Herald newspaper and an article appeared in the January 17, 2019 issue that described the proposed project.

Brian & Kelvin arranged for a public meeting to be held at the Macclesfield Institute on 22 January 2019 to discuss the proposal and if agreed to form a Steering Committee to take the project forward as a community effort. The meeting was well attended by local residents and landowners, and by representatives of Mt. Barker Council (Mayor Ann Ferguson), Federal Member for Mayo, Rebekha Sharkie, and Regional Development Australia (Fleurieu, KI and Adelaide Hills), Steve Shotton.


A Steering Committee was duly elected comprising: Brian Lewis (Chair), Kelvin Williams, Kath Thurmer, Stephen Heading, Tess Minett (Ward Councillor), Greg Marlu and Greg Sarre (a representative from Mt. Barker Council).

The Committee prepared a detailed proposal and submitted it to Council on 31 March 2019 asking for approval for the project and for assistance in locating a suitable site. A deputation to the Mount Barker Council meeting of 6 May by Brian Lewis and Kelvin Williams presented an overview of the proposal to Councillors.

On 20 May 2019 the Macclesfield Community Association Inc. agreed to auspice the maccy biochar group.

On 27 July 2019 we held our first public open day to demonstrate the making of biochar. 

On 15 August 2019 we made our first batch of biochar on private property.

On 16 August 2019 we received our first delivery at our first collection point on Shady Grove Road.

By the end of our first season (mid-November 2019) we had made in excess of 1000 litres of biochar and (based on the analysis of our biochar by an accredited 3rd party in April 2020) we had avoided about 0.8 tonne of carbon dioxide.

By the end of our first full season in 2020 we had made in excess of 18000 litres of biochar and avoided about 8 tonnes of carbon dioxide.

In May 2021 we became a Task Group of the  Macclesfield Community Association Inc.


New Kiln.jpg



1. Events:

Total number of job events = 52

Number of wood collection events = 22

Number of production events = 26

Number of other events = 4

Avge. number of production events per week = 0.86


2. Volunteer hours:

Total number of volunteer hours = 570

Number of volunteer hours spent on wood collection = 207

Number of volunteer hours spent on production = 342

​3. CO2 emissions:

Total CO2 emissions from jobs = 708kg

CO2 emissions from wood collection = 286kg

CO2 emissions from production = 322kg

4. Biochar production:

Total biochar production = 18451 litres

Job production = 15271 litres

Member's private production = 3180 litres

5.Net CO2 avoided:

Total net CO2 avoided =8 tonnes

8042 kgCO2 was avoided by 18451 litres of biochar

i.e. 1 kgCO2 was avoided for every 2.3 litres of biochar

i.e. Every 100 litres of biochar avoided about 44 kgCO2.