Merge pull request #284 from PyPSA/import-trial-transmission-losses

[import benefits] [DNMY] Import trial transmission losses

config.default.yaml

@@ -251,6 +251,7 @@ sector:
   electricity_distribution_grid: true
   electricity_distribution_grid_cost_factor: 1.0  #multiplies cost in data/costs.csv
   electricity_grid_connection: true  # only applies to onshore wind and utility PV
+  electricity_grid_transmission_losses: 0 # Enable (= value from 1 to 3) or disable (= 0) transmission losses in electricity grid, see PyPSA#462
   H2_network: true
   gas_network: false
   H2_retrofit: false  # if set to True existing gas pipes can be retrofitted to H2 pipes
@@ -655,4 +656,4 @@ plotting:
     external battery: '#dff7cb'
     external offwind: '#d0e8f5'
     external onwind: '#accbfc'
-    external solar: '#fcf1c7'
+    external solar: '#fcf1c7'

scripts/solve_network.py

@@ -288,13 +288,15 @@ def solve_network(n, config, opts='', **kwargs):
 
     if cf_solving.get('skip_iterations', False):
         network_lopf(n, solver_name=solver_name, solver_options=solver_options,
+                     transmission_losses=config["sector"]["electricity_grid_transmission_losses"],
                      extra_functionality=extra_functionality,
                      keep_shadowprices=keep_shadowprices, **kwargs)
     else:
         ilopf(n, solver_name=solver_name, solver_options=solver_options,
               track_iterations=track_iterations,
               min_iterations=min_iterations,
               max_iterations=max_iterations,
+              transmission_losses=config["sector"]["electricity_grid_transmission_losses"],
               extra_functionality=extra_functionality,
               keep_shadowprices=keep_shadowprices,
               **kwargs)