diff --git a/lighthouse-cli/bin.ts b/lighthouse-cli/bin.ts
index 4011b0d04d77..e8dd9a38fd17 100755
--- a/lighthouse-cli/bin.ts
+++ b/lighthouse-cli/bin.ts
@@ -294,7 +294,7 @@ function saveResults(results: Results,
         }, Promise.resolve(results));
       } else {
         let outputPath = flags.outputPath || `${resolvedPath}.report.${flags.output}`;
-        outputPath = outputPath.replace(/\.htmlv2$/, '.html');
+        outputPath = outputPath.replace(/\.domhtml$/, '.html');
         return Printer.write(results, flags.output, outputPath).then(results => {
           if (flags.output === Printer.OutputMode[Printer.OutputMode.html]) {
             if (flags.view) {
diff --git a/lighthouse-cli/printer.ts b/lighthouse-cli/printer.ts
index 86960753d973..7a329559f2aa 100644
--- a/lighthouse-cli/printer.ts
+++ b/lighthouse-cli/printer.ts
@@ -22,8 +22,8 @@
  *   'json': JSON formatted results
  *   'html': An HTML report
  */
-enum OutputMode { json, html, htmlv2 };
-type Mode = 'json' | 'html' | 'htmlv2';
+enum OutputMode { json, html, domhtml };
+type Mode = 'json' | 'html' | 'domhtml';
 
 import {Results} from './types/types';
 
@@ -56,7 +56,7 @@ function createOutput(results: Results, outputMode: OutputMode): string {
     return reportGenerator.generateHTML(results, 'cli');
   }
 
-  if (outputMode === OutputMode.htmlv2) {
+  if (outputMode === OutputMode.domhtml) {
     return new ReportGeneratorV2().generateReportHtml(results);
   }
 
@@ -123,7 +123,7 @@ function write(results: Results, mode: Mode, path: string): Promise<Results> {
 function GetValidOutputOptions():Array<Mode> {
   return [OutputMode[OutputMode.json] as Mode,
           OutputMode[OutputMode.html] as Mode,
-          OutputMode[OutputMode.htmlv2] as Mode];
+          OutputMode[OutputMode.domhtml] as Mode];
 }
 
 export {
diff --git a/lighthouse-core/config/default.json b/lighthouse-core/config/default.json
index 16a517196a81..f996b7d179ce 100644
--- a/lighthouse-core/config/default.json
+++ b/lighthouse-core/config/default.json
@@ -454,6 +454,7 @@
   "categories": {
     "pwa": {
       "name": "Progressive Web App",
+      "weight": 1,
       "description": "These audits validate the aspects of a Progressive Web App. They are a subset of the [PWA Checklist](https://developers.google.com/web/progressive-web-apps/checklist).",
       "audits": [
         {"id": "service-worker", "weight": 1},
diff --git a/lighthouse-core/report/report-generator.js b/lighthouse-core/report/report-generator.js
index fbb60f69b70e..2fb6776783de 100644
--- a/lighthouse-core/report/report-generator.js
+++ b/lighthouse-core/report/report-generator.js
@@ -148,45 +148,14 @@ class ReportGenerator {
     });
   }
 
-  /**
-   * Returns aggregations directly from results or maps Config v2 categories to equivalent Config
-   * v1 aggregations.
-   * @param {{aggregations: !Array<!Object>, reportCategories: !Array<!Object>}} results
-   * @param {boolean=} forceV2
-   * @return {!Array<!Aggregation>}
-   */
-  _getAggregations(results, forceV2 = false) {
-    if (results.aggregations.length && !forceV2) {
-      return results.aggregations;
-    }
-
-    return results.reportCategories.map(category => {
-      const name = category.name;
-      const description = category.description;
-
-      return {
-        name, description,
-        categorizable: false,
-        scored: category.id === 'pwa',
-        total: category.score / 100,
-        score: [{
-          name, description,
-          overall: category.score / 100,
-          subItems: category.audits.map(child => child.result),
-        }],
-      };
-    });
-  }
-
   /**
    * Generates the Lighthouse report HTML.
    * @param {!Object} results Lighthouse results.
    * @param {!string} reportContext What app is requesting the report (eg. devtools, extension)
    * @param {?Object} reportsCatalog Basic info about all the reports to include in left nav bar
-   * @param {boolean=} forceV2
    * @return {string} HTML of the report page.
    */
-  generateHTML(results, reportContext = 'extension', reportsCatalog, forceV2) {
+  generateHTML(results, reportContext = 'extension', reportsCatalog) {
     this._registerPartials(results.audits);
 
     results.aggregations.forEach(aggregation => {
@@ -207,7 +176,7 @@ class ReportGenerator {
       stylesheets: this.getReportCSS(),
       reportContext: reportContext,
       scripts: this.getReportJS(reportContext),
-      aggregations: this._getAggregations(results, forceV2),
+      aggregations: results.aggregations,
       auditsByCategory: this._createPWAAuditsByCategory(results.aggregations),
       runtimeConfig: results.runtimeConfig,
       reportsCatalog
diff --git a/lighthouse-core/report/v2/report-generator.js b/lighthouse-core/report/v2/report-generator.js
index 3654dc5fdec5..40d0647df71d 100644
--- a/lighthouse-core/report/v2/report-generator.js
+++ b/lighthouse-core/report/v2/report-generator.js
@@ -67,7 +67,8 @@ class ReportGeneratorV2 {
       return Object.assign({}, category, {audits, score});
     });
 
-    return {categories};
+    const score = ReportGeneratorV2.arithmeticMean(categories);
+    return {score, categories};
   }
 
   /**
diff --git a/lighthouse-core/report/v2/report-renderer.js b/lighthouse-core/report/v2/report-renderer.js
index 3c1fcab571ff..e78c7e513875 100644
--- a/lighthouse-core/report/v2/report-renderer.js
+++ b/lighthouse-core/report/v2/report-renderer.js
@@ -1,3 +1,22 @@
+/**
+ * Copyright 2017 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+'use strict';
+
+/* eslint-env browser */
+
 class ReportRenderer {
   /**
    * @param {!Object} report
diff --git a/lighthouse-core/runner.js b/lighthouse-core/runner.js
index dd1d16fd441f..527094d02a57 100644
--- a/lighthouse-core/runner.js
+++ b/lighthouse-core/runner.js
@@ -135,11 +135,13 @@ class Runner {
             a => Aggregate.aggregate(a, runResults.auditResults));
         }
 
-        // compute config v2 categories if available
         let reportCategories = [];
+        let score = 0;
         if (config.categories) {
           const reportGenerator = new ReportGeneratorV2();
-          reportCategories = reportGenerator.generateReportJson(config, resultsById).categories;
+          const report = reportGenerator.generateReportJson(config, resultsById);
+          reportCategories = report.categories;
+          score = report.score;
         }
 
         return {
@@ -150,6 +152,7 @@ class Runner {
           audits: resultsById,
           artifacts: runResults.artifacts,
           runtimeConfig: Runner.getRuntimeConfig(opts.flags),
+          score,
           reportCategories,
           aggregations
         };
diff --git a/lighthouse-core/test/report/v2/report-generator-test.js b/lighthouse-core/test/report/v2/report-generator-test.js
index a5b4485cad1e..26bcab25a8f0 100644
--- a/lighthouse-core/test/report/v2/report-generator-test.js
+++ b/lighthouse-core/test/report/v2/report-generator-test.js
@@ -53,6 +53,18 @@ describe('ReportGeneratorV2', () => {
   });
 
   describe('#generateReportJson', () => {
+    it('should return a score', () => {
+      const result = new ReportGeneratorV2().generateReportJson({
+        categories: {
+          'categoryA': {weight: 1, audits: [{id: 'auditA', weight: 1}]},
+          'categoryB': {weight: 4, audits: [{id: 'auditB', weight: 1}]},
+          'categoryC': {audits: []},
+        }
+      }, {auditA: {score: 50}, auditB: {score: 100}});
+
+      assert.equal(result.score, 90);
+    });
+
     it('should return categories', () => {
       const result = new ReportGeneratorV2().generateReportJson({
         categories: {