This　research　introduces　a　novel　multigeneration　method　that　enables　the　simultaneous　generation　of　electrical　power,　fresh　water,　hydrogen,　hot　water,　and　cold　water.　The　energy　required　for　this　process　is　derived　from　geothermal　fluid　and　biogas.　A　post-combustion　mechanism　is　used　in　this　novel　method　to　separate　carbon　dioxide　and　reduce　emissions.　In　addition,　the　heat　produced　by　burning　biogas　is　used　in　an　organic　Rankine　cycle　to　generate　power,　which　is　thermally　integrated　with　a　Kalina　cycle.　The　waste　heat　generated　by　the　Kalina　cycle　is　applied　to　produce　hot　water　and　facilitate　fluid　evaporation　in　the　vapor　generator　of　the　absorption　chiller　cycle.　Hydrogen　is　generated　in　a　PEM　electrolyzer,　where　the　necessary　electricity　is　provided　directly　within　the　system.　A　exergy　analysis　was　performed　to　determine　the　system＇s　irreversibility　and　pinpoint　the　area　with　the　greatest　exergy　destruction.　The　findings　revealed　that　the　overall　exergy　destruction　of　this　system　is　17,412　kW,　with　the　combustion　reactor　being　the　primary　contributor,　responsible　for　63.2%　of　the　irreversibility.　Furthermore,　the　study　revealed　that　the　evaporator　in　the　absorption　chiller　cycle　has　the　greatest　value　for　the　parameter　known　as　the　＂　environmental　damage　effectiveness　factor.＂　To　tackle　this　problem,　a　remedy　was　suggested　during　the　sensitivity　analysis.　The　sensitivity　analysis　demonstrated　that　raising　the　feed　temperature　of　the　stripper　column　in　the　post-combustion　section　can　improve　both　energy　and　exergy　efficiency,　without　any　impact　on　the　production　rate.　The　modeling　results　obtained　using　Aspen　HYSYS　indicate　that　the　suggested　process　has　exergy　efficiency,　electrical　efficiency　and　energy　efficiency　and　values　of　23.67　%,　16.38　%　and　51.15　%,　respectively.　In　addition,　the　thermoeconomic　evaluation　demonstrated　that　the　annual　cost　of　this　new　process　amounts　to　11,255,260　$.　Taking　into　account　the　production　rate　of　the　system,　the　key　parameter　levelized　cost　of　energy　was　calculated　to　be　0.1172　$/kWh.　An　analysis　of　different　parameters　showed　that　raising　the　temperature　of　the　feed　in　the　stripper　column　to　118　degrees　C　can　result　in　a　decrease　in　the　levelized　cost　of　energy　by　$0.085/kWh　due　to　a　reduction　in　geothermal　energy　consumption.　Additionally,　this　modification　resulted　in　an　enhancement　of　the　energy　efficiency　and　exergy　efficiency　to　77　%　and　26　%,　respectively.