diff --git a/data/transmission_investment_outlook.csv b/data/transmission_investment_outlook.csv
new file mode 100644
index 00000000..fbfcfb6f
--- /dev/null
+++ b/data/transmission_investment_outlook.csv
@@ -0,0 +1,32 @@
+,hnd,historic
+2020,1000,1000
+2021,1000,1000
+2022,1100,1000
+2023,3000,1000
+2024,4000,1000
+2025,6000,1000
+2026,9500,1000
+2027,9300,1000
+2028,9250,1000
+2029,11500,1000
+2030,12000,1000
+2031,12000,1000
+2032,12000,1000
+2033,12000,1000
+2034,12000,1000
+2035,12000,1000
+2036,12000,1000
+2037,12000,1000
+2038,12000,1000
+2039,12000,1000
+2040,12000,1000
+2041,12000,1000
+2042,12000,1000
+2043,12000,1000
+2044,12000,1000
+2045,12000,1000
+2046,12000,1000
+2047,12000,1000
+2048,12000,1000
+2049,12000,1000
+2050,12000,1000