diff --git a/dispatches/case_studies/renewables_case/DoubleLoopOptimization.ipynb b/dispatches/case_studies/renewables_case/DoubleLoopOptimization.ipynb
index e95496cdb..b1a8e2c1f 100644
--- a/dispatches/case_studies/renewables_case/DoubleLoopOptimization.ipynb
+++ b/dispatches/case_studies/renewables_case/DoubleLoopOptimization.ipynb
@@ -79,8 +79,10 @@
     "from prescient.simulator import Prescient\n",
     "import os\n",
     "\n",
+    "TESTING_MODE = bool(os.environ.get(\"DISPATCHES_TESTING_MODE\", None))\n",
+    "\n",
+    "sim_days = 7 if not TESTING_MODE else 1\n",
     "start_date = \"01-02-2020\"\n",
-    "sim_days = 7\n",
     "day_ahead_horizon = 48\n",
     "real_time_horizon = 4\n",
     "output_dir = Path(f\"double_loop_results\")\n",