diff --git a/Snakefile b/Snakefile
index 621e4e9d..d067a339 100644
--- a/Snakefile
+++ b/Snakefile
@@ -65,6 +65,11 @@ if config["foresight"] == "myopic":
     include: "rules/solve_myopic.smk"
 
 
+if config["foresight"] == "perfect":
+
+    include: "rules/solve_perfect.smk"
+
+
 rule purge:
     message:
         "Purging generated resources, results and docs. Downloads are kept."
diff --git a/rules/solve_perfect.smk b/rules/solve_perfect.smk
new file mode 100644
index 00000000..9ced1c76
--- /dev/null
+++ b/rules/solve_perfect.smk
@@ -0,0 +1,223 @@
+# SPDX-FileCopyrightText: : 2023 The PyPSA-Eur Authors
+#
+# SPDX-License-Identifier: MIT
+rule add_existing_baseyear:
+    input:
+        overrides="data/override_component_attrs",
+        network=RESULTS
+        + "prenetworks/elec_s{simpl}_{clusters}_l{ll}_{opts}_{sector_opts}_{planning_horizons}.nc",
+        powerplants=RESOURCES + "powerplants.csv",
+        busmap_s=RESOURCES + "busmap_elec_s{simpl}.csv",
+        busmap=RESOURCES + "busmap_elec_s{simpl}_{clusters}.csv",
+        clustered_pop_layout=RESOURCES + "pop_layout_elec_s{simpl}_{clusters}.csv",
+        costs="data/costs_{}.csv".format(config["scenario"]["planning_horizons"][0]),
+        cop_soil_total=RESOURCES + "cop_soil_total_elec_s{simpl}_{clusters}.nc",
+        cop_air_total=RESOURCES + "cop_air_total_elec_s{simpl}_{clusters}.nc",
+        existing_heating="data/existing_infrastructure/existing_heating_raw.csv",
+        existing_solar="data/existing_infrastructure/solar_capacity_IRENA.csv",
+        existing_onwind="data/existing_infrastructure/onwind_capacity_IRENA.csv",
+        existing_offwind="data/existing_infrastructure/offwind_capacity_IRENA.csv",
+    output:
+        RESULTS
+        + "prenetworks-brownfield/elec_s{simpl}_{clusters}_l{ll}_{opts}_{sector_opts}_{planning_horizons}.nc",
+    wildcard_constraints:
+        planning_horizons=config["scenario"]["planning_horizons"][0],  #only applies to baseyear
+    threads: 1
+    resources:
+        mem_mb=2000,
+    log:
+        LOGS
+        + "add_existing_baseyear_elec_s{simpl}_{clusters}_l{ll}_{opts}_{sector_opts}_{planning_horizons}.log",
+    benchmark:
+        (
+            BENCHMARKS
+            + "add_existing_baseyear/elec_s{simpl}_{clusters}_l{ll}_{opts}_{sector_opts}_{planning_horizons}"
+        )
+    conda:
+        "../envs/environment.yaml"
+    script:
+        "../scripts/add_existing_baseyear.py"
+
+
+rule add_brownfield:
+    input:
+        overrides="data/override_component_attrs",
+        network=RESULTS
+        + "prenetworks/elec_s{simpl}_{clusters}_l{ll}_{opts}_{sector_opts}_{planning_horizons}.nc",
+        network_p=solved_previous_horizon,  #solved network at previous time step
+        costs="data/costs_{planning_horizons}.csv",
+        cop_soil_total=RESOURCES + "cop_soil_total_elec_s{simpl}_{clusters}.nc",
+        cop_air_total=RESOURCES + "cop_air_total_elec_s{simpl}_{clusters}.nc",
+    output:
+        RESULTS
+        + "prenetworks-brownfield/elec_s{simpl}_{clusters}_l{ll}_{opts}_{sector_opts}_{planning_horizons}.nc",
+    threads: 4
+    resources:
+        mem_mb=10000,
+    log:
+        LOGS
+        + "add_brownfield_elec_s{simpl}_{clusters}_l{ll}_{opts}_{sector_opts}_{planning_horizons}.log",
+    benchmark:
+        (
+            BENCHMARKS
+            + "add_brownfield/elec_s{simpl}_{clusters}_l{ll}_{opts}_{sector_opts}_{planning_horizons}"
+        )
+    conda:
+        "../envs/environment.yaml"
+    script:
+        "../scripts/add_brownfield.py"
+
+
+ruleorder: add_existing_baseyear > add_brownfield
+
+
+rule prepare_perfect_foresight:
+    input:
+        **{
+            f"network_{year}": RDIR
+            + "/prenetworks/elec_s{simpl}_{clusters}_lv{lv}_{opts}_{sector_opts}_"
+            + f"{year}.nc"
+            for year in config["scenario"]["planning_horizons"][1:]
+        },
+        brownfield_network=lambda w: (
+            RDIR
+            + "/prenetworks-brownfield/"
+            + "elec_s{simpl}_{clusters}_lv{lv}_{opts}_{sector_opts}_"
+            + "{}.nc".format(str(config["scenario"]["planning_horizons"][0]))
+        ),
+        overrides="data/override_component_attrs",
+    output:
+        RDIR
+        + "/prenetworks-brownfield/elec_s{simpl}_{clusters}_lv{lv}_{opts}_{sector_opts}_brownfield_all_years.nc",
+    threads: 2
+    resources:
+        mem_mb=10000,
+    script:
+        "../scripts/prepare_perfect_foresight.py"
+    log:
+        LOGS
+        + "prepare_perfect_foresight{simpl}_{clusters}_l{ll}_{opts}_{sector_opts}.log",
+    benchmark:
+        (
+            BENCHMARKS
+            + "prepare_perfect_foresight{simpl}_{clusters}_l{ll}_{opts}_{sector_opts}"
+        )
+    conda:
+        "../envs/environment.yaml"
+    script:
+        "../scripts/prepare_perfect_foresight.py"
+
+
+rule solve_network_perfect:
+    input:
+        overrides="data/override_component_attrs",
+        network=RDIR
+        + "/prenetworks-brownfield/elec_s{simpl}_{clusters}_lv{lv}_{opts}_{sector_opts}_brownfield_all_years.nc",
+        costs="data/costs_2030.csv",
+        config=SDIR + "/configs/config.yaml",
+    output:
+        RDIR
+        + "/postnetworks/elec_s{simpl}_{clusters}_lv{lv}_{opts}_{sector_opts}_brownfield_all_years.nc",
+    shadow:
+        "shallow"
+    log:
+        solver=RDIR
+        + "/logs/elec_s{simpl}_{clusters}_lv{lv}_{opts}_{sector_opts}_brownfield_all_years_solver.log",
+        python=RDIR
+        + "/logs/elec_s{simpl}_{clusters}_lv{lv}_{opts}_{sector_opts}_brownfield_all_years_python.log",
+        memory=RDIR
+        + "/logs/elec_s{simpl}_{clusters}_lv{lv}_{opts}_{sector_opts}_brownfield_all_years_memory.log",
+    threads: 4
+    resources:
+        mem_mb=config["solving"]["mem"],
+    benchmark:
+        (
+            RDIR
+            + "/benchmarks/solve_network/elec_s{simpl}_{clusters}_lv{lv}_{opts}_{sector_opts}_brownfield_all_years"
+        )
+    script:
+        "../scripts/solve_network.py"
+    conda:
+        "../envs/environment.yaml"
+
+
+rule make_summary_perfect:
+    input:
+        **{
+            f"networks_{simpl}_{clusters}_lv{lv}_{opts}_{sector_opts}": RDIR
+            + f"/postnetworks/elec_s{simpl}_{clusters}_lv{lv}_{opts}_{sector_opts}_brownfield_all_years.nc"
+            for simpl in config["scenario"]["simpl"]
+            for clusters in config["scenario"]["clusters"]
+            for opts in config["scenario"]["opts"]
+            for sector_opts in config["scenario"]["sector_opts"]
+            for lv in config["scenario"]["lv"]
+        },
+        costs="data/costs_2020.csv",
+        overrides="data/override_component_attrs",
+    output:
+        nodal_costs="results" + "/" + config["run"] + "/csvs/nodal_costs.csv",
+        nodal_capacities="results" + "/" + config["run"] + "/csvs/nodal_capacities.csv",
+        nodal_cfs="results" + "/" + config["run"] + "/csvs/nodal_cfs.csv",
+        cfs="results" + "/" + config["run"] + "/csvs/cfs.csv",
+        costs="results" + "/" + config["run"] + "/csvs/costs.csv",
+        capacities="results" + "/" + config["run"] + "/csvs/capacities.csv",
+        curtailment="results" + "/" + config["run"] + "/csvs/curtailment.csv",
+        capital_cost="results" + "/" + config["run"] + "/csvs/capital_cost.csv",
+        energy="results" + "/" + config["run"] + "/csvs/energy.csv",
+        supply="results" + "/" + config["run"] + "/csvs/supply.csv",
+        supply_energy="results" + "/" + config["run"] + "/csvs/supply_energy.csv",
+        prices="results" + "/" + config["run"] + "/csvs/prices.csv",
+        weighted_prices="results" + "/" + config["run"] + "/csvs/weighted_prices.csv",
+        market_values="results" + "/" + config["run"] + "/csvs/market_values.csv",
+        price_statistics="results" + "/" + config["run"] + "/csvs/price_statistics.csv",
+        metrics="results" + "/" + config["run"] + "/csvs/metrics.csv",
+        co2_emissions="results" + "/" + config["run"] + "/csvs/co2_emissions.csv",
+    threads: 2
+    resources:
+        mem_mb=10000,
+    script:
+        "../scripts/make_summary_perfect.py"
+    log:
+        LOGS + "make_summary_perfect{simpl}_{clusters}_l{ll}_{opts}_{sector_opts}.log",
+    benchmark:
+        (
+            BENCHMARKS
+            + "make_summary_perfect{simpl}_{clusters}_l{ll}_{opts}_{sector_opts}"
+        )
+    conda:
+        "../envs/environment.yaml"
+
+
+rule plot_summary_perfect:
+    input:
+        **{
+            f"costs_{year}": f"data/costs_{year}.csv"
+            for year in config["scenario"]["planning_horizons"]
+        },
+        costs_csv="results" + "/" + config["run"] + "/csvs/costs.csv",
+        energy="results" + "/" + config["run"] + "/csvs/energy.csv",
+        balances="results" + "/" + config["run"] + "/csvs/supply_energy.csv",
+        eea="data/eea/UNFCCC_v24.csv",
+        countries="results" + "/" + config["run"] + "/csvs/nodal_capacities.csv",
+        co2_emissions="results" + "/" + config["run"] + "/csvs/co2_emissions.csv",
+        capacities="results" + "/" + config["run"] + "/csvs/capacities.csv",
+        capital_cost="results" + "/" + config["run"] + "/csvs/capital_cost.csv",
+    output:
+        costs1="results" + "/" + config["run"] + "/graphs/costs.pdf",
+        costs2="results" + "/" + config["run"] + "/graphs/costs2.pdf",
+        costs3="results" + "/" + config["run"] + "/graphs/total_costs_per_year.pdf",
+        # energy="results"  + '/' + config['run'] + '/graphs/energy.pdf',
+        balances="results" + "/" + config["run"] + "/graphs/balances-energy.pdf",
+        co2_emissions="results" + "/" + config["run"] + "/graphs/carbon_budget_plot.pdf",
+        capacities="results" + "/" + config["run"] + "/graphs/capacities.pdf",
+    threads: 2
+    resources:
+        mem_mb=10000,
+    script:
+        "../scripts/plot_summary_perfect.py"
+    log:
+        LOGS + "plot_summary_perfect.log",
+    benchmark:
+        (BENCHMARKS + "plot_summary_perfect")
+    conda:
+        "../envs/environment.yaml"