diff --git a/doc/index.rst b/doc/index.rst
index 3c25815b..d366f5b7 100644
--- a/doc/index.rst
+++ b/doc/index.rst
@@ -120,6 +120,7 @@ Documentation
 
 * :doc:`spatial_resolution`
 * :doc:`supply_demand`
+* :doc:`technology_assumptions`
 
 .. toctree::
    :hidden:
@@ -128,7 +129,7 @@ Documentation
 
    spatial_resolution
    supply_demand
-
+   technology_assumptions
 
 **Foresight options**
 
@@ -143,6 +144,7 @@ Documentation
 
    overnight
    myopic
+   perfect
 
 **References**
 
diff --git a/doc/technology_assumptions.rst b/doc/technology_assumptions.rst
new file mode 100644
index 00000000..e179e78f
--- /dev/null
+++ b/doc/technology_assumptions.rst
@@ -0,0 +1,7 @@
+.. _technology_assumptions:
+
+##########################################
+Technology and cost assumptions
+##########################################
+
+Add text here.