Learn about Electricity: Electricity is a very useful form of energy. Electricity can be used to perform work such as: Heating our homes or our food (electrical energy is converted into light and heat energy) Lighting our lamps (electrical energy is converted into light and heat energy)
Extraction techniques. There are different ways of extracting natural gas from coal seams, including vertical drilling and horizontal or directional drilling. Hydraulic fracturing is sometimes used to release gas from a coal seam. ... water and minor additives that open up cracks in the seam to create a path for water to flow back to the surface.