refactor: account for terminals at either end of HVDC

Breakthrough-Energy · Oct 15, 2020 · c575e73 · c575e73
1 parent b290f04
commit c575e73
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diff --git a/powersimdata/design/investment/investment_costs.py b/powersimdata/design/investment/investment_costs.py
@@ -212,7 +212,7 @@ def _calculate_single_line_cost(line, bus):
         # Calculate cost
         mw_miles = miles * line.Pmax
         line_cost = mw_miles * const.hvdc_line_cost["costMWmi"]
-        total_cost = line_cost + const.hvdc_terminal_cost_per_MW * line.Pmax
+        total_cost = line_cost + 2 * const.hvdc_terminal_cost_per_MW * line.Pmax
         return total_cost
 
     bus = grid_new.bus

diff --git a/powersimdata/design/investment/tests/test_investment_costs.py b/powersimdata/design/investment/tests/test_investment_costs.py
@@ -92,7 +92,7 @@ def test_calculate_ac_inv_costs(mock_grid):
 
 
 def test_calculate_dc_inv_costs(mock_grid):
-    expected_dc_cost = 10 * 679.1799258421203 * 457.1428571 + 135e3 * 10
+    expected_dc_cost = 10 * 679.1799258421203 * 457.1428571 + 135e3 * 10 * 2
     dc_cost = _calculate_dc_inv_costs(mock_grid)
     assert dc_cost == pytest.approx(expected_dc_cost)