diff --git a/_toc.yml b/_toc.yml
index 83ac4cd4..50562ec2 100644
--- a/_toc.yml
+++ b/_toc.yml
@@ -10,6 +10,7 @@ parts:
   - file: examples/lbnl-example.md
   - file: examples/nist-example.md
   - file: examples/NREL-example.md
+  - file: examples/pnnl-example1.md
 - caption: Example Systems
   chapters:
   - file: examples/guideline36-2021-4.1.md