Rebuilding Haiti must start from the ground up, with agricultural education
Trees are limited in Haiti, there is not enough saw dust and woodchips to consider making fuel for all the cookstoves needed in Haiti.
Bundling grass is less expensive but is harder to carry and sell. People also have problems saving enough for the rainy season.
It is great income for the poor, saves trees, compact fuel pucks are easier to save for the rainy seasons. When used in the best stoves it is a clean fuel that saves lives and produce biochar.
Legacy Foundation's A USERS MANUAL in French:
LA FABRICATION DE BRIQUETTES COMBUSTIBLES: UN MANUEL POUR LES UTILISATEURS
can be found under Pwogram Kreyol Tab if you are signed in as member
Briquetting is the process of compacting burnables ( paper, grass, agriculture waste and forest “waste”, some plastics) into small fuel bricks. The briquettes are made in a press that uses levers or a jack to provide adequate pressure to form dense briquettes. Often this material is chopped or shredded and soaked in water before briquetting. The generally hockey puck sized and shaped briquettes are sun dried before being used as fuel.
Vetver grass will compact well due to it's oil content and the higher levels of lignin. The grass must be dried to 15% moisture, then can be chopped up manually with a machete when making briquettes pucks. For making pellets it must be ground finer.
The video below shows how to build a hand cranked chopper from a machete, wood, and springs:
Here is a video of a silage chopper with adjustable settings. It can also be used for dried grass to produce higher quality briquettes quickly.
There is a dealer in Haiti that sells this product at 24A Autoroute de Delmas
This machine can also be used to chop grass that can be used in composting toilets rather than using sawdust.
Some of the best work on briquetting is being done by the Legacy Foundation:
They have developed a basic briquette press made from wood:
Many different crop residues and waste can be turned into fuel briquettes
Here is a video of how to make a few styles of briquette presses
They sell construction and operation manuals:
ECHO - Educational Concern for Hunger Organization (a great organization that everyone should know about) http://echonet.org/ has several publications on presses and briquette making:
Just click the download button in the blue bar.
VITA - Volunteers in Technical Assistance (another great organization) has a publication on briquetting in English:
GTZ - German Society for Technical Cooperation (still another great organization) also has a good briquetting publication: