diff --git a/test/MultiFuels/CO2_cap.csv b/test/MultiFuels/CO2_cap.csv
new file mode 100644
index 0000000000..1b5869ce2e
--- /dev/null
+++ b/test/MultiFuels/CO2_cap.csv
@@ -0,0 +1,2 @@
+,Network_zones,CO_2_Cap_Zone_1,CO_2_Max_tons_MWh_1,CO_2_Max_Mtons_1
+NE,z1,1,0.05,0.018
diff --git a/test/MultiFuels/Capacity_reserve_margin.csv b/test/MultiFuels/Capacity_reserve_margin.csv
new file mode 100644
index 0000000000..1cda938c80
--- /dev/null
+++ b/test/MultiFuels/Capacity_reserve_margin.csv
@@ -0,0 +1,2 @@
+,Network_zones,CapRes_1
+NE,z1,0.156
diff --git a/test/MultiFuels/Demand_data.csv b/test/MultiFuels/Demand_data.csv
new file mode 100644
index 0000000000..25a46794b6
--- /dev/null
+++ b/test/MultiFuels/Demand_data.csv
@@ -0,0 +1,25 @@
+Voll,Demand_Segment,Cost_of_Demand_Curtailment_per_MW,Max_Demand_Curtailment,Rep_Periods,Timesteps_per_Rep_Period,Sub_Weights,Time_Index,Demand_MW_z1
+50000,1,1,1,1,24,8760,1,11162
+,,,,,,,2,10556
+,,,,,,,3,10105
+,,,,,,,4,9878
+,,,,,,,5,9843
+,,,,,,,6,10017
+,,,,,,,7,10390
+,,,,,,,8,10727
+,,,,,,,9,11298
+,,,,,,,10,11859
+,,,,,,,11,12196
+,,,,,,,12,12321
+,,,,,,,13,12381
+,,,,,,,14,12270
+,,,,,,,15,12149
+,,,,,,,16,12219
+,,,,,,,17,13410
+,,,,,,,18,14539
+,,,,,,,19,14454
+,,,,,,,20,14012
+,,,,,,,21,13494
+,,,,,,,22,12772
+,,,,,,,23,11877
+,,,,,,,24,10874
\ No newline at end of file
diff --git a/test/MultiFuels/Energy_share_requirement.csv b/test/MultiFuels/Energy_share_requirement.csv
new file mode 100644
index 0000000000..50c97b4b39
--- /dev/null
+++ b/test/MultiFuels/Energy_share_requirement.csv
@@ -0,0 +1,2 @@
+,Network_zones,ESR_1,ESR_2
+NE,z1,0.259,0.348
diff --git a/test/MultiFuels/Fuels_data.csv b/test/MultiFuels/Fuels_data.csv
new file mode 100644
index 0000000000..c3ed423cea
--- /dev/null
+++ b/test/MultiFuels/Fuels_data.csv
@@ -0,0 +1,26 @@
+Time_Index,NG,None,H2
+0,0.05306,0,0
+1,5.28,0,16
+2,5.28,0,16
+3,5.28,0,16
+4,5.28,0,16
+5,5.28,0,16
+6,5.28,0,16
+7,5.28,0,16
+8,5.28,0,16
+9,5.28,0,16
+10,5.28,0,16
+11,5.28,0,16
+12,5.28,0,16
+13,5.28,0,16
+14,5.28,0,16
+15,5.28,0,16
+16,5.28,0,16
+17,5.28,0,16
+18,5.28,0,16
+19,5.28,0,16
+20,5.28,0,16
+21,5.28,0,16
+22,5.28,0,16
+23,5.28,0,16
+24,5.28,0,16
\ No newline at end of file
diff --git a/test/MultiFuels/Generators_data.csv b/test/MultiFuels/Generators_data.csv
new file mode 100644
index 0000000000..f1ffe73b73
--- /dev/null
+++ b/test/MultiFuels/Generators_data.csv
@@ -0,0 +1,5 @@
+Resource,Zone,THERM,MUST_RUN,STOR,FLEX,HYDRO,VRE,LDS,Num_VRE_Bins,MULTI_FUELS,New_Build,Can_Retire,Existing_Cap_MW,Existing_Cap_MWh,Existing_Charge_Cap_MW,Max_Cap_MW,Max_Cap_MWh,Max_Charge_Cap_MW,Min_Cap_MW,Min_Cap_MWh,Min_Charge_Cap_MW,Inv_Cost_per_MWyr,Inv_Cost_per_MWhyr,Inv_Cost_Charge_per_MWyr,Fixed_OM_Cost_per_MWyr,Fixed_OM_Cost_per_MWhyr,Fixed_OM_Cost_Charge_per_MWyr,Var_OM_Cost_per_MWh,Var_OM_Cost_per_MWh_In,Heat_Rate_MMBTU_per_MWh,Fuel,Cap_Size,Start_Cost_per_MW,Start_Fuel_MMBTU_per_MW,Up_Time,Down_Time,Ramp_Up_Percentage,Ramp_Dn_Percentage,Hydro_Energy_to_Power_Ratio,Min_Power,Self_Disch,Eff_Up,Eff_Down,Min_Duration,Max_Duration,Max_Flexible_Demand_Advance,Max_Flexible_Demand_Delay,Flexible_Demand_Energy_Eff,Reg_Max,Rsv_Max,Reg_Cost,Rsv_Cost,MaxCapTag_1,MaxCapTag_2,MaxCapTag_3,MinCapTag_1,MinCapTag_2,MinCapTag_3,MGA,Resource_Type,CapRes_1,ESR_1,ESR_2,region,cluster,Num_Fuels,Fuel1,Heat_Rate1_MMBTU_per_MWh,Fuel1_Min_Cofire_Level,Fuel1_Max_Cofire_Level,Fuel1_Min_Cofire_Level_Start,Fuel1_Max_Cofire_Level_Start,Fuel2,Heat_Rate2_MMBTU_per_MWh,Fuel2_Min_Cofire_Level,Fuel2_Max_Cofire_Level,Fuel2_Min_Cofire_Level_Start,Fuel2_Max_Cofire_Level_Start
+natural_gas_combined_cycle,1,1,0,0,0,0,0,0,0,1,1,0,0,0,0,-1,-1,-1,0,0,0,65400,0,0,10287,0,0,3.55,0,7.43,NG,250,91,2,6,6,0.64,0.64,0,0.468,0,1,1,0,0,0,0,1,0.25,0.5,0,0,0,0,0,0,0,0,1,natural_gas_fired_combined_cycle,0.93,0,0,NE,1,2,NG,7.43,0,1,0,1,H2,7.43,0.05,1,0.05,1
+solar_pv,1,0,0,0,0,0,1,0,1,0,1,0,0,0,0,-1,-1,-1,0,0,0,85300,0,0,18760,0,0,0,0,9.13,None,0,0,0,0,0,1,1,0,0,0,1,1,0,0,0,0,1,0,0,0,0,1,0,0,1,0,0,1,solar_photovoltaic,0.8,1,1,NE,1,1,None,0,0,0,0,0,None,0,0,0,0,1
+onshore_wind,1,0,0,0,0,0,1,0,1,0,1,0,0,0,0,-1,-1,-1,0,0,0,97200,0,0,43205,0,0,0.1,0,9.12,None,0,0,0,0,0,1,1,0,0,0,1,1,0,0,0,0,1,0,0,0,0,0,1,0,0,1,0,1,onshore_wind_turbine,0.8,1,1,NE,1,1,None,0,0,0,0,1,None,0,0,0,0,1
+battery,1,0,0,1,0,0,0,0,0,0,1,0,0,0,0,-1,-1,-1,0,0,0,19584,22494,0,4895,5622,0,0.15,0.15,0,None,0,0,0,0,0,1,1,0,0,0,0.92,0.92,1,10,0,0,1,0,0,0,0,0,0,1,0,0,1,0,battery_mid,0.95,0,0,NE,0,1,None,0,0,0,0,0,None,0,0,0,0,1
\ No newline at end of file
diff --git a/test/MultiFuels/Generators_variability.csv b/test/MultiFuels/Generators_variability.csv
new file mode 100644
index 0000000000..4e5561db1e
--- /dev/null
+++ b/test/MultiFuels/Generators_variability.csv
@@ -0,0 +1,25 @@
+Time_Index,natural_gas_combined_cycle,solar_pv,onshore_wind,battery
+1,1,0,0.889717042,1
+2,1,0,0.877715468,1
+3,1,0,0.903424203,1
+4,1,0,0.895153165,1
+5,1,0,0.757258117,1
+6,1,0,0.630928695,1
+7,1,0,0.557177782,1
+8,1,0,0.6072492,1
+9,1,0.1779,0.423417866,1
+10,1,0.429,0.007470775,1
+11,1,0.5748,0.002535942,1
+12,1,0.6484,0.002153709,1
+13,1,0.6208,0.00445132,1
+14,1,0.596,0.007711587,1
+15,1,0.5013,0.100848213,1
+16,1,0.3311,0.201802149,1
+17,1,0.0642,0.141933054,1
+18,1,0,0.567022562,1
+19,1,0,0.946024895,1
+20,1,0,0.923394203,1
+21,1,0,0.953386247,1
+22,1,0,0.929205418,1
+23,1,0,0.849528909,1
+24,1,0,0.665570974,1
\ No newline at end of file
diff --git a/test/MultiFuels/Maximum_capacity_requirement.csv b/test/MultiFuels/Maximum_capacity_requirement.csv
new file mode 100644
index 0000000000..ddf55ebace
--- /dev/null
+++ b/test/MultiFuels/Maximum_capacity_requirement.csv
@@ -0,0 +1,4 @@
+MaxCapReqConstraint,ConstraintDescription,Max_MW
+1,PV,50000
+2,Wind,100000
+3,Batteries,60000
diff --git a/test/MultiFuels/Minimum_capacity_requirement.csv b/test/MultiFuels/Minimum_capacity_requirement.csv
new file mode 100644
index 0000000000..8593a5abcc
--- /dev/null
+++ b/test/MultiFuels/Minimum_capacity_requirement.csv
@@ -0,0 +1,4 @@
+MinCapReqConstraint,ConstraintDescription,Min_MW
+1,PV,5000
+2,Wind,10000
+3,Batteries,6000
diff --git a/test/MultiFuels/highs_settings.yml b/test/MultiFuels/highs_settings.yml
new file mode 100644
index 0000000000..b9a24bf9a9
--- /dev/null
+++ b/test/MultiFuels/highs_settings.yml
@@ -0,0 +1,11 @@
+# HiGHS Solver Parameters
+# Common solver settings
+Feasib_Tol: 1.0e-05        # Primal feasibility tolerance # [type: double, advanced: false, range: [1e-10, inf], default: 1e-07]
+TimeLimit: 1.0e23             # Time limit # [type: double, advanced: false, range: [0, inf], default: inf]
+Pre_Solve: on          # Presolve option: "off", "choose" or "on" # [type: string, advanced: false, default: "choose"]
+Method: ipm             #HiGHS-specific solver settings # Solver option: "simplex", "choose" or "ipm" # [type: string, advanced: false, default: "choose"]
+ipm_optimality_tolerance: 1e-04
+
+# run the crossover routine for ipx
+# [type: string, advanced: "on", range: {"off", "on"}, default: "off"]
+run_crossover: "on"
diff --git a/test/runtests.jl b/test/runtests.jl
index 8e2e89f1b3..2ae42a572d 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -42,4 +42,8 @@ end
     @testset "Multi Stage" begin
         include("test_multistage.jl")
     end
+
+    @testset "Multi Fuels" begin
+        include("test_multifuels.jl")
+    end
 end
diff --git a/test/test_multifuels.jl b/test/test_multifuels.jl
new file mode 100644
index 0000000000..ad9f7e1129
--- /dev/null
+++ b/test/test_multifuels.jl
@@ -0,0 +1,52 @@
+module TestMultiFuels
+
+using Test
+
+include(joinpath(@__DIR__, "utilities.jl"))
+
+obj_true = 5494.7919354
+test_path = "MultiFuels"
+
+# Define test inputs
+genx_setup = Dict(
+    "PrintModel" => 0,
+    "NetworkExpansion" => 0,
+    "Trans_Loss_Segments" => 1,
+    "Reserves" => 0,
+    "EnergyShareRequirement" => 1,
+    "CapacityReserveMargin" => 1,
+    "CO2Cap" => 0,
+    "StorageLosses" => 1,
+    "MinCapReq" => 1,
+    "MaxCapReq" => 1,
+    "ParameterScale" => 1,
+    "WriteShadowPrices" => 1,
+    "UCommit" => 2,
+    "TimeDomainReduction" => 0,
+    "TimeDomainReductionFolder" => "TDR_Results",
+    "MultiStage" => 0,
+    "ModelingToGenerateAlternatives" => 0, 
+    "ModelingtoGenerateAlternativeSlack" => 0.1,
+    "ModelingToGenerateAlternativeIterations" => 3,
+    "MethodofMorris" => 0,
+    "EnableJuMPStringNames" => false,
+    "IncludeLossesInESR" => 0,
+)
+
+# Run the case and get the objective value and tolerance
+EP, _, _ = redirect_stdout(devnull) do
+    run_genx_case_testing(test_path, genx_setup)
+end
+obj_test = objective_value(EP)
+optimal_tol_rel = get_attribute(EP, "ipm_optimality_tolerance")
+optimal_tol = optimal_tol_rel * obj_test  # Convert to absolute tolerance
+
+# Test the objective value
+test_result = @test obj_test ≈ obj_true atol = optimal_tol
+
+# Round objective value and tolerance. Write to test log.
+obj_test = round_from_tol!(obj_test, optimal_tol)
+optimal_tol = round_from_tol!(optimal_tol, optimal_tol)
+write_testlog(test_path, obj_test, optimal_tol, test_result)
+
+end # module TestMultiFuels
\ No newline at end of file