diff --git a/nemo/costs.py b/nemo/costs.py
index b3bbed8c..970e914c 100644
--- a/nemo/costs.py
+++ b/nemo/costs.py
@@ -827,27 +827,6 @@ def __init__(self, discount, coal_price, gas_price, ccs_price):
         self.totcost_per_kwh = {}
 
 
-class GenCost2023_2022(GenCost2023):
-    """GenCost 2022-23 costs for 2022 (low assumption)."""
-
-    def __init__(self, discount, coal_price, gas_price, ccs_price):
-        """Construct a cost object."""
-        GenCost2023.__init__(self, discount, coal_price, gas_price, ccs_price)
-        table = self.capcost_per_kw
-        table[tech.Black_Coal] = 5398
-        table[tech.CCGT] = 1766
-        table[tech.CCGT_CCS] = 4354
-        table[tech.CentralReceiver] = 6525
-        table[tech.Coal_CCS] = 11040
-        table[tech.OCGT] = 943
-        table[tech.PV1Axis] = 1572
-        table[tech.Wind] = 2642
-        table[tech.WindOffshore] = 5682
-
-        table = self.totcost_per_kwh
-        table[tech.Battery] = {1: 931, 2: 673, 4: 546, 8: 485}
-
-
 class GenCost2023_2030_CP(GenCost2023):
     """GenCost 2022-23 costs for 2030 (current policies)."""
 
@@ -1062,7 +1041,6 @@ def __init__(self, discount, coal_price, gas_price, ccs_price):
                   'GenCost2022-in2050-CP': GenCost2022_2050_CP,
                   'GenCost2022-in2050-NZE2050': GenCost2022_2050_NZE2050,
                   'GenCost2022-in2050-NZE2050+': GenCost2022_2050_NZEPost2050,
-                  'GenCost2023-in2022': GenCost2023_2022,
                   'GenCost2023-in2030-CP': GenCost2023_2030_CP,
                   'GenCost2023-in2030-NZE2050': GenCost2023_2030_NZE2050,
                   'GenCost2023-in2030-NZE2050+': GenCost2023_2030_NZEPost2050,