NOVELTY - Providing renewable energy comprises harvesting grass of the genus Triodia and utilizing the grass as fuel for an external combustion engine or processing the harvested grass to produce fuel.    USE - The methods are used for providing renewable energy, producing bio-char, producing gas such as hydrogen or methane, obtaining volatile fractions from Triodia plants, and producing ethanol. The collected volatiles are used for the manufacture of animal fodder, incense, aromatic enhancer, furniture polish, biopharmaceuticals, bactericides, fungicides, insecticides, antibiotics, or medicine (all claimed).    ADVANTAGE - The methods provide renewable energy which does not consume plants which would otherwise provide food. It requires significantly less energy and resource input than other biofuel systems.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a method of producing bio-char comprising harvesting Triodia plants and subjecting the plants to pyrolysis; (2) a gas production method comprising subjecting Triodia to termite gut protists and capturing the gas generated; (3) a method of obtaining volatile fractions from Triodia plants comprising heating all or part of a Triodia plant and collecting volatile fractions exuded; (4) an ethanol production method comprising gasification of Triodia, fermentation, and distillation; (5) an ethanol production method comprising using bacteria to convert Triodia directly into ethanol; (6) a method of harvesting elements comprising harvesting grass of Triodia and processing the grass to extract the desired elements; (7) a carbon sequestration method comprising harvesting grass of Triodia, creating bio-char from the grass, and storing it; (8) a method of producing animal fodder comprising harvesting and processing plants of the genus Triodia; (9) a renewable energy generator comprising an external combustion engine powered by Triodia grass coupled to an electric generator; (10) solid fuel comprising mechanically densified grass of Triodia; (11) a renewable fuel generator comprising a gasifier adapted to produce synthesis gas from grass of Triodia; (12) a renewable fuel generator comprising pyrolysis' means adapted to produce bio-oil from grass of Triodia; (13) a renewable fuel generator comprising pyrolysis means adapted to produce gas from grass of Triodia and means for producing bio-fuel from the gas using the Fischer-Tropsh process; (14) bio-char made by harvesting plants of Triodia and subjecting the plants to pyrolysis; (15) ethanol production means comprising means for pre-treating plants of the genus Triodia to liberate cellulose and hemicellulose, hydrolysis of cellulose and hemicellulose, fermentation, and distillation; (16) gas production means adapted to subject Triodia to termite gut protists and capture the gas generated; (17) means for extracting volatile fractions from plants of Triodia adapted to heat all or part of a Triodia plant and collect volatile fractions exuded; (18) ethanol production means comprising means for gasification of Triodia, means for fermentation, and means for distillation; (19) ethanol production means adapted to use bacteria to convert Triodia directly into ethanol; and (20) means for harvesting elements comprising means for harvesting grass of Triodia and means for processing the grass to extract the desired elements.