how is geothermal energy produced

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{"cid":"91191772","title":"Flat Prismatic \tLifepo4 Battery Cells High Safety Performance Climate Resistance","imgUrl":"https:\/\/img.ismap.com\/nimg\/7f\/ee\/dd3de3fb5926511ce3c49ca0b95a-200x200-1.jpg","attrs":{"Brand Name":"HKANON","Model Number":"3.2V 75Ah","Minimum Order Quantity":"12PCS","Delivery Time":"10K\/Month","Certification":"CE RoHS MSDS UN38.3","Place of Origin":"CN","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram","Packaging Details":"12PCS\/Carton","Name":"3.2v 72ah 75ah lifepo4 batteri cell","Nominal voltage":"3.2V","Nominal capacity":"75Ah","Cell rate":"3C 225A","Size":"201*131*37.2mm","Weight":"1.91kgs"}}