diff --git a/web/src/components/CaseBuilder/Buses.test.ts b/web/src/components/CaseBuilder/Buses.test.ts
new file mode 100644
index 0000000..bc74a3b
--- /dev/null
+++ b/web/src/components/CaseBuilder/Buses.test.ts
@@ -0,0 +1,48 @@
+/*
+ * UnitCommitment.jl: Optimization Package for Security-Constrained Unit Commitment
+ * Copyright (C) 2020-2025, UChicago Argonne, LLC. All rights reserved.
+ * Released under the modified BSD license. See COPYING.md for more details.
+ */
+
+import assert from "node:assert";
+import { BusesColumnSpec, generateBusesData } from "./Buses";
+import { generateCsv, parseCsv } from "../Common/Forms/DataTable";
+import { TEST_DATA_1 } from "../../core/fixtures.test";
+
+test("generate CSV", () => {
+  const [data, columns] = generateBusesData(TEST_DATA_1);
+  const actualCsv = generateCsv(data, columns);
+  const expectedCsv =
+    "Name,Load (MW) 00:00,Load (MW) 01:00,Load (MW) 02:00,Load (MW) 03:00,Load (MW) 04:00\n" +
+    "b1,35.79534,34.38835,33.45083,32.89729,33.25044\n" +
+    "b2,14.03739,13.48563,13.11797,12.9009,13.03939\n" +
+    "b3,27.3729,26.29698,25.58005,25.15675,25.4268";
+  assert.strictEqual(actualCsv, expectedCsv);
+});
+
+test("parse CSV", () => {
+  const csvContents =
+    "Name,Load (MW) 00:00,Load (MW) 01:00,Load (MW) 02:00,Load (MW) 03:00,Load (MW) 04:00\n" +
+    "b1,0,1,2,3,4\n" +
+    "b3,27.3729,26.29698,25.58005,25.15675,25.4268";
+  const [newBuses, err] = parseCsv(csvContents, BusesColumnSpec, TEST_DATA_1);
+  assert(err === null);
+  assert.deepEqual(newBuses, {
+    b1: {
+      "Load (MW)": [0, 1, 2, 3, 4],
+    },
+    b3: {
+      "Load (MW)": [27.3729, 26.29698, 25.58005, 25.15675, 25.4268],
+    },
+  });
+});
+
+test("parse CSV with duplicated names", () => {
+  const csvContents =
+    "Name,Load (MW) 00:00,Load (MW) 01:00,Load (MW) 02:00,Load (MW) 03:00,Load (MW) 04:00\n" +
+    "b1,0,0,0,0,0\n" +
+    "b1,0,0,0,0,0";
+  const [, err] = parseCsv(csvContents, BusesColumnSpec, TEST_DATA_1);
+  assert(err !== null);
+  assert.equal(err.message, `Name "b1" is duplicated (row 2)`);
+});
diff --git a/web/src/components/CaseBuilder/ThermalUnits.test.ts b/web/src/components/CaseBuilder/ThermalUnits.test.ts
new file mode 100644
index 0000000..0d2aa97
--- /dev/null
+++ b/web/src/components/CaseBuilder/ThermalUnits.test.ts
@@ -0,0 +1,209 @@
+/*
+ * UnitCommitment.jl: Optimization Package for Security-Constrained Unit Commitment
+ * Copyright (C) 2020-2025, UChicago Argonne, LLC. All rights reserved.
+ * Released under the modified BSD license. See COPYING.md for more details.
+ */
+
+import {
+  floatFormatter,
+  generateCsv,
+  generateTableColumns,
+  generateTableData,
+} from "../Common/Forms/DataTable";
+import { TEST_DATA_1 } from "../../core/fixtures.test";
+import {
+  generateThermalUnitsData,
+  parseThermalUnitsCsv,
+  ThermalUnitsColumnSpec,
+} from "./ThermalUnits";
+import assert from "node:assert";
+import {
+  getProfiledGenerators,
+  getThermalGenerators,
+} from "../../core/fixtures";
+
+test("generateTableColumns", () => {
+  const columns = generateTableColumns(TEST_DATA_1, ThermalUnitsColumnSpec);
+  assert.equal(columns[2]!["columns"]!.length, 10);
+  assert.deepEqual(columns[2]!["columns"]![0], {
+    editor: "input",
+    editorParams: {
+      selectContents: true,
+    },
+    field: "Production cost curve (MW) 1",
+    formatter: floatFormatter,
+    headerHozAlign: "left",
+    headerSort: false,
+    headerWordWrap: true,
+    hozAlign: "left",
+    minWidth: 60,
+    resizable: false,
+    title: "1",
+  });
+});
+
+test("generateTableData", () => {
+  const data = generateTableData(
+    getThermalGenerators(TEST_DATA_1),
+    ThermalUnitsColumnSpec,
+    TEST_DATA_1,
+  );
+  assert.deepEqual(data[0], {
+    Name: "g1",
+    Bus: "b1",
+    "Initial power (MW)": 115,
+    "Initial status (h)": 12,
+    "Minimum downtime (h)": 4,
+    "Minimum uptime (h)": 4,
+    "Ramp down limit (MW)": 232.68,
+    "Ramp up limit (MW)": 232.68,
+    "Shutdown limit (MW)": 232.68,
+    "Startup limit (MW)": 232.68,
+    "Production cost curve ($) 1": 1400,
+    "Production cost curve ($) 2": 1600,
+    "Production cost curve ($) 3": 2200,
+    "Production cost curve ($) 4": 2400,
+    "Production cost curve ($) 5": "",
+    "Production cost curve ($) 6": "",
+    "Production cost curve ($) 7": "",
+    "Production cost curve ($) 8": "",
+    "Production cost curve ($) 9": "",
+    "Production cost curve ($) 10": "",
+    "Production cost curve (MW) 1": 100,
+    "Production cost curve (MW) 2": 110,
+    "Production cost curve (MW) 3": 130,
+    "Production cost curve (MW) 4": 135,
+    "Production cost curve (MW) 5": "",
+    "Production cost curve (MW) 6": "",
+    "Production cost curve (MW) 7": "",
+    "Production cost curve (MW) 8": "",
+    "Production cost curve (MW) 9": "",
+    "Production cost curve (MW) 10": "",
+    "Startup costs ($) 1": 300,
+    "Startup costs ($) 2": 400,
+    "Startup costs ($) 3": "",
+    "Startup costs ($) 4": "",
+    "Startup costs ($) 5": "",
+    "Startup delays (h) 1": 1,
+    "Startup delays (h) 2": 4,
+    "Startup delays (h) 3": "",
+    "Startup delays (h) 4": "",
+    "Startup delays (h) 5": "",
+    "Must run?": false,
+  });
+});
+
+const expectedCsvContents =
+  "Name,Bus," +
+  "Production cost curve (MW) 1," +
+  "Production cost curve (MW) 2," +
+  "Production cost curve (MW) 3," +
+  "Production cost curve (MW) 4," +
+  "Production cost curve (MW) 5," +
+  "Production cost curve (MW) 6," +
+  "Production cost curve (MW) 7," +
+  "Production cost curve (MW) 8," +
+  "Production cost curve (MW) 9," +
+  "Production cost curve (MW) 10," +
+  "Production cost curve ($) 1," +
+  "Production cost curve ($) 2," +
+  "Production cost curve ($) 3," +
+  "Production cost curve ($) 4," +
+  "Production cost curve ($) 5," +
+  "Production cost curve ($) 6," +
+  "Production cost curve ($) 7," +
+  "Production cost curve ($) 8," +
+  "Production cost curve ($) 9," +
+  "Production cost curve ($) 10," +
+  "Startup costs ($) 1," +
+  "Startup costs ($) 2," +
+  "Startup costs ($) 3," +
+  "Startup costs ($) 4," +
+  "Startup costs ($) 5," +
+  "Startup delays (h) 1," +
+  "Startup delays (h) 2," +
+  "Startup delays (h) 3," +
+  "Startup delays (h) 4," +
+  "Startup delays (h) 5," +
+  "Minimum uptime (h),Minimum downtime (h),Ramp up limit (MW)," +
+  "Ramp down limit (MW),Startup limit (MW),Shutdown limit (MW)," +
+  "Initial status (h),Initial power (MW),Must run?\n" +
+  "g1,b1,100,110,130,135,,,,,,,1400,1600,2200,2400,,,,,,,300,400,,,,1,4,,,,4,4,232.68,232.68,232.68,232.68,12,115,false";
+
+const invalidCsv =
+  "Name,Bus," +
+  "Production cost curve (MW) 1," +
+  "Production cost curve (MW) 2," +
+  "Production cost curve (MW) 3," +
+  "Production cost curve (MW) 4," +
+  "Production cost curve (MW) 5," +
+  "Production cost curve (MW) 6," +
+  "Production cost curve (MW) 7," +
+  "Production cost curve (MW) 8," +
+  "Production cost curve (MW) 9," +
+  "Production cost curve (MW) 10," +
+  "Production cost curve ($) 1," +
+  "Production cost curve ($) 2," +
+  "Production cost curve ($) 3," +
+  "Production cost curve ($) 4," +
+  "Production cost curve ($) 5," +
+  "Production cost curve ($) 6," +
+  "Production cost curve ($) 7," +
+  "Production cost curve ($) 8," +
+  "Production cost curve ($) 9," +
+  "Production cost curve ($) 10," +
+  "Startup costs ($) 1," +
+  "Startup costs ($) 2," +
+  "Startup costs ($) 3," +
+  "Startup costs ($) 4," +
+  "Startup costs ($) 5," +
+  "Startup delays (h) 1," +
+  "Startup delays (h) 2," +
+  "Startup delays (h) 3," +
+  "Startup delays (h) 4," +
+  "Startup delays (h) 5," +
+  "Minimum uptime (h),Minimum downtime (h),Ramp up limit (MW)," +
+  "Ramp down limit (MW),Startup limit (MW),Shutdown limit (MW)," +
+  "Initial status (h),Initial power (MW),Must run?\n" +
+  "g1,b1,100,110,130,x,,,,,,,1400,1600,2200,2400,,,,,,,300,400,,,,1,4,,,,4,4,232.68,232.68,232.68,232.68,12,115,false";
+
+test("generateCSV", () => {
+  const [data, columns] = generateThermalUnitsData(TEST_DATA_1);
+  const actualCsvContents = generateCsv(data, columns);
+  assert.equal(actualCsvContents, expectedCsvContents);
+});
+
+test("parseCSV", () => {
+  const [scenario, err] = parseThermalUnitsCsv(
+    expectedCsvContents,
+    TEST_DATA_1,
+  );
+  assert(!err);
+  const thermalGens = getThermalGenerators(scenario);
+  const profGens = getProfiledGenerators(scenario);
+  assert.equal(Object.keys(thermalGens).length, 1);
+  assert.equal(Object.keys(profGens).length, 2);
+  assert.deepEqual(thermalGens["g1"], {
+    Bus: "b1",
+    Type: "Thermal",
+    "Production cost curve (MW)": [100.0, 110.0, 130.0, 135.0],
+    "Production cost curve ($)": [1400.0, 1600.0, 2200.0, 2400.0],
+    "Startup costs ($)": [300.0, 400.0],
+    "Startup delays (h)": [1, 4],
+    "Ramp up limit (MW)": 232.68,
+    "Ramp down limit (MW)": 232.68,
+    "Startup limit (MW)": 232.68,
+    "Shutdown limit (MW)": 232.68,
+    "Minimum downtime (h)": 4,
+    "Minimum uptime (h)": 4,
+    "Initial status (h)": 12,
+    "Initial power (MW)": 115,
+    "Must run?": false,
+  });
+});
+
+test("parseCSV with invalid number[T]", () => {
+  const [, err] = parseThermalUnitsCsv(invalidCsv, TEST_DATA_1);
+  assert(err);
+  assert.equal(err.message, '"x" is not a valid number (row 1)');
+});
diff --git a/web/src/components/CaseBuilder/ThermalUnits.tsx b/web/src/components/CaseBuilder/ThermalUnits.tsx
index 94fdd24..77dcc10 100644
--- a/web/src/components/CaseBuilder/ThermalUnits.tsx
+++ b/web/src/components/CaseBuilder/ThermalUnits.tsx
@@ -9,6 +9,7 @@ import DataTable, {
   generateCsv,
   generateTableColumns,
   generateTableData,
+  parseCsv,
 } from "../Common/Forms/DataTable";
 import { CaseBuilderSectionProps } from "./CaseBuilder";
 import { useRef } from "react";
@@ -22,6 +23,7 @@ import {
   faUpload,
 } from "@fortawesome/free-solid-svg-icons";
 import {
+  getProfiledGenerators,
   getThermalGenerators,
   UnitCommitmentScenario,
 } from "../../core/fixtures";
@@ -115,7 +117,7 @@ export const ThermalUnitsColumnSpec: ColumnSpec[] = [
   },
 ];
 
-const generateThermalUnitsData = (
+export const generateThermalUnitsData = (
   scenario: UnitCommitmentScenario,
 ): [any[], ColumnDefinition[]] => {
   const columns = generateTableColumns(scenario, ThermalUnitsColumnSpec);
@@ -127,6 +129,31 @@ const generateThermalUnitsData = (
   return [data, columns];
 };
 
+export const parseThermalUnitsCsv = (
+  csvContents: string,
+  scenario: UnitCommitmentScenario,
+): [UnitCommitmentScenario, ValidationError | null] => {
+  const [thermalGens, err] = parseCsv(
+    csvContents,
+    ThermalUnitsColumnSpec,
+    scenario,
+  );
+  if (err) return [scenario, err];
+
+  // Process imported generators
+  for (const gen in thermalGens) {
+    thermalGens[gen]["Type"] = "Thermal";
+  }
+
+  // Merge with existing data
+  const profGens = getProfiledGenerators(scenario);
+  const newScenario = {
+    ...scenario,
+    Generators: { ...thermalGens, ...profGens },
+  };
+  return [newScenario, null];
+};
+
 const ThermalUnitsComponent = (props: CaseBuilderSectionProps) => {
   const fileUploadElem = useRef<FileUploadElement>(null);
 
@@ -137,26 +164,14 @@ const ThermalUnitsComponent = (props: CaseBuilderSectionProps) => {
   };
 
   const onUpload = () => {
-    // fileUploadElem.current!.showFilePicker((csvContents: any) => {
-    //   const [newGenerators, err] = parseCsv(
-    //     csvContents,
-    //     ThermalUnitsColumnSpec,
-    //     props.scenario,
-    //   );
-    //   if (err) {
-    //     props.onError(err.message);
-    //     return;
-    //   }
-    //   for (const gen in newGenerators) {
-    //     newGenerators[gen]["Type"] = "Thermal";
-    //   }
-    //
-    //   const newScenario = {
-    //     ...props.scenario,
-    //     Generators: newGenerators,
-    //   };
-    //   props.onDataChanged(newScenario);
-    // });
+    fileUploadElem.current!.showFilePicker((csv: any) => {
+      const [newScenario, err] = parseThermalUnitsCsv(csv, props.scenario);
+      if (err) {
+        props.onError(err.message);
+        return;
+      }
+      props.onDataChanged(newScenario);
+    });
   };
 
   const onAdd = () => {
diff --git a/web/src/components/Common/Forms/DataTable.test.ts b/web/src/components/Common/Forms/DataTable.test.ts
deleted file mode 100644
index ccc92b7..0000000
--- a/web/src/components/Common/Forms/DataTable.test.ts
+++ /dev/null
@@ -1,127 +0,0 @@
-/*
- * UnitCommitment.jl: Optimization Package for Security-Constrained Unit Commitment
- * Copyright (C) 2020-2025, UChicago Argonne, LLC. All rights reserved.
- * Released under the modified BSD license. See COPYING.md for more details.
- */
-
-import assert from "node:assert";
-import { BusesColumnSpec, generateBusesData } from "../../CaseBuilder/Buses";
-import {
-  floatFormatter,
-  generateCsv,
-  generateTableColumns,
-  generateTableData,
-  parseCsv,
-} from "./DataTable";
-import { TEST_DATA_1 } from "../../../core/fixtures.test";
-import { ThermalUnitsColumnSpec } from "../../CaseBuilder/ThermalUnits";
-import { getThermalGenerators } from "../../../core/fixtures";
-
-test("generateTableColumns (ThermalUnits)", () => {
-  const columns = generateTableColumns(TEST_DATA_1, ThermalUnitsColumnSpec);
-  assert.equal(columns[2]!["columns"]!.length, 10);
-  assert.deepEqual(columns[2]!["columns"]![0], {
-    editor: "input",
-    editorParams: {
-      selectContents: true,
-    },
-    field: "Production cost curve (MW) 1",
-    formatter: floatFormatter,
-    headerHozAlign: "left",
-    headerSort: false,
-    headerWordWrap: true,
-    hozAlign: "left",
-    minWidth: 60,
-    resizable: false,
-    title: "1",
-  });
-});
-
-test("generateTableData (ThermalUnits)", () => {
-  const data = generateTableData(
-    getThermalGenerators(TEST_DATA_1),
-    ThermalUnitsColumnSpec,
-    TEST_DATA_1,
-  );
-  assert.deepEqual(data[0], {
-    Name: "g1",
-    Bus: "b1",
-    "Initial power (MW)": 115,
-    "Initial status (h)": 12,
-    "Minimum downtime (h)": 4,
-    "Minimum uptime (h)": 4,
-    "Ramp down limit (MW)": 232.68,
-    "Ramp up limit (MW)": 232.68,
-    "Shutdown limit (MW)": 232.68,
-    "Startup limit (MW)": 232.68,
-    "Production cost curve ($) 1": 1400,
-    "Production cost curve ($) 2": 1600,
-    "Production cost curve ($) 3": 2200,
-    "Production cost curve ($) 4": 2400,
-    "Production cost curve ($) 5": "",
-    "Production cost curve ($) 6": "",
-    "Production cost curve ($) 7": "",
-    "Production cost curve ($) 8": "",
-    "Production cost curve ($) 9": "",
-    "Production cost curve ($) 10": "",
-    "Production cost curve (MW) 1": 100,
-    "Production cost curve (MW) 2": 110,
-    "Production cost curve (MW) 3": 130,
-    "Production cost curve (MW) 4": 135,
-    "Production cost curve (MW) 5": "",
-    "Production cost curve (MW) 6": "",
-    "Production cost curve (MW) 7": "",
-    "Production cost curve (MW) 8": "",
-    "Production cost curve (MW) 9": "",
-    "Production cost curve (MW) 10": "",
-    "Startup costs ($) 1": 300,
-    "Startup costs ($) 2": 400,
-    "Startup costs ($) 3": "",
-    "Startup costs ($) 4": "",
-    "Startup costs ($) 5": "",
-    "Startup delays (h) 1": 1,
-    "Startup delays (h) 2": 4,
-    "Startup delays (h) 3": "",
-    "Startup delays (h) 4": "",
-    "Startup delays (h) 5": "",
-    "Must run?": false,
-  });
-});
-
-test("generate CSV", () => {
-  const [data, columns] = generateBusesData(TEST_DATA_1);
-  const actualCsv = generateCsv(data, columns);
-  const expectedCsv =
-    "Name,Load (MW) 00:00,Load (MW) 01:00,Load (MW) 02:00,Load (MW) 03:00,Load (MW) 04:00\n" +
-    "b1,35.79534,34.38835,33.45083,32.89729,33.25044\n" +
-    "b2,14.03739,13.48563,13.11797,12.9009,13.03939\n" +
-    "b3,27.3729,26.29698,25.58005,25.15675,25.4268";
-  assert.strictEqual(actualCsv, expectedCsv);
-});
-
-test("parse CSV (Buses)", () => {
-  const csvContents =
-    "Name,Load (MW) 00:00,Load (MW) 01:00,Load (MW) 02:00,Load (MW) 03:00,Load (MW) 04:00\n" +
-    "b1,0,1,2,3,4\n" +
-    "b3,27.3729,26.29698,25.58005,25.15675,25.4268";
-  const [newBuses, err] = parseCsv(csvContents, BusesColumnSpec, TEST_DATA_1);
-  assert(err === null);
-  assert.deepEqual(newBuses, {
-    b1: {
-      "Load (MW)": [0, 1, 2, 3, 4],
-    },
-    b3: {
-      "Load (MW)": [27.3729, 26.29698, 25.58005, 25.15675, 25.4268],
-    },
-  });
-});
-
-test("parse CSV with duplicated names", () => {
-  const csvContents =
-    "Name,Load (MW) 00:00,Load (MW) 01:00,Load (MW) 02:00,Load (MW) 03:00,Load (MW) 04:00\n" +
-    "b1,0,0,0,0,0\n" +
-    "b1,0,0,0,0,0";
-  const [, err] = parseCsv(csvContents, BusesColumnSpec, TEST_DATA_1);
-  assert(err !== null);
-  assert.equal(err.message, `Name "b1" is duplicated (row 2)`);
-});
diff --git a/web/src/components/Common/Forms/DataTable.tsx b/web/src/components/Common/Forms/DataTable.tsx
index 9c816c0..a2e6a54 100644
--- a/web/src/components/Common/Forms/DataTable.tsx
+++ b/web/src/components/Common/Forms/DataTable.tsx
@@ -13,7 +13,7 @@ import {
 import { ValidationError } from "../../../core/Validation/validate";
 import { UnitCommitmentScenario } from "../../../core/fixtures";
 import Papa from "papaparse";
-import { parseNumber } from "../../../core/Operations/commonOps";
+import { parseBool, parseNumber } from "../../../core/Operations/commonOps";
 
 export interface ColumnSpec {
   title: string;
@@ -228,11 +228,12 @@ export const parseCsv = (
         case "string":
           data[name][spec.title] = row[spec.title];
           break;
-        case "number":
+        case "number": {
           const [val, err] = parseNumber(row[spec.title]);
           if (err) return [null, { message: err.message + rowRef }];
           data[name][spec.title] = val;
           break;
+        }
         case "busRef":
           const busName = row[spec.title];
           if (!(busName in scenario.Buses)) {
@@ -243,15 +244,36 @@ export const parseCsv = (
           }
           data[name][spec.title] = row[spec.title];
           break;
-        case "number[T]":
+        case "number[T]": {
           data[name][spec.title] = Array(timeslots.length);
-
           for (let i = 0; i < timeslots.length; i++) {
-            data[name][spec.title][i] = parseFloat(
-              row[`${spec.title} ${timeslots[i]}`],
-            );
+            const [vf, err] = parseNumber(row[`${spec.title} ${timeslots[i]}`]);
+            if (err) return [data, { message: err.message + rowRef }];
+            data[name][spec.title][i] = vf;
+          }
+          break;
+        }
+        case "number[N]": {
+          data[name][spec.title] = Array(spec.length).fill(0);
+          for (let i = 0; i < spec.length!; i++) {
+            let v = row[`${spec.title} ${i + 1}`];
+            if (v.trim() === "") {
+              data[name][spec.title].splice(i, spec.length! - i);
+              break;
+            } else {
+              const [vf, err] = parseNumber(row[`${spec.title} ${i + 1}`]);
+              if (err) return [data, { message: err.message + rowRef }];
+              data[name][spec.title][i] = vf;
+            }
           }
           break;
+        }
+        case "boolean": {
+          const [val, err] = parseBool(row[spec.title]);
+          if (err) return [data, { message: err.message + rowRef }];
+          data[name][spec.title] = val;
+          break;
+        }
         default:
           throw Error(`Unknown type: ${spec.type}`);
       }
diff --git a/web/src/core/Operations/commonOps.test.ts b/web/src/core/Operations/commonOps.test.ts
new file mode 100644
index 0000000..706d16c
--- /dev/null
+++ b/web/src/core/Operations/commonOps.test.ts
@@ -0,0 +1,30 @@
+/*
+ * UnitCommitment.jl: Optimization Package for Security-Constrained Unit Commitment
+ * Copyright (C) 2020-2025, UChicago Argonne, LLC. All rights reserved.
+ * Released under the modified BSD license. See COPYING.md for more details.
+ */
+
+import { parseBool } from "./commonOps";
+import assert from "node:assert";
+
+test("parseBool", () => {
+  // True values
+  for (const str of ["true", "TRUE", "1"]) {
+    let [v, err] = parseBool(str);
+    assert(!err);
+    assert.equal(v, true);
+  }
+
+  // False values
+  for (const str of ["false", "FALSE", "0"]) {
+    let [v, err] = parseBool(str);
+    assert(!err);
+    assert.equal(v, false);
+  }
+
+  // Invalid values
+  for (const str of ["qwe", ""]) {
+    let [, err] = parseBool(str);
+    assert(err);
+  }
+});
diff --git a/web/src/core/Operations/commonOps.ts b/web/src/core/Operations/commonOps.ts
index fc40bdd..e8854ac 100644
--- a/web/src/core/Operations/commonOps.ts
+++ b/web/src/core/Operations/commonOps.ts
@@ -51,6 +51,18 @@ export const parseNumber = (
   }
 };
 
+export const parseBool = (
+  valueStr: string,
+): [boolean, ValidationError | null] => {
+  if (["true", "1"].includes(valueStr.toLowerCase())) {
+    return [true, null];
+  }
+  if (["false", "0"].includes(valueStr.toLowerCase())) {
+    return [false, null];
+  }
+  return [true, { message: `"${valueStr}" is not a valid boolean value` }];
+};
+
 export const changeStringData = (
   field: string,
   newValue: string,
diff --git a/web/src/core/Operations/generatorOps.ts b/web/src/core/Operations/generatorOps.ts
index 8968aa5..d8ceda0 100644
--- a/web/src/core/Operations/generatorOps.ts
+++ b/web/src/core/Operations/generatorOps.ts
@@ -63,8 +63,8 @@ export const createThermalUnit = (
         [name]: {
           Bus: busName,
           Type: "Thermal",
-          "Production cost curve (MW)": [0],
-          "Production cost curve ($)": [0],
+          "Production cost curve (MW)": [0, 100],
+          "Production cost curve ($)": [0, 10],
           "Startup costs ($)": [0],
           "Startup delays (h)": [1],
           "Ramp up limit (MW)": "",