Name emissions constraints to allow for emissions extensions (#36)

* Give name to emission constraint --------- Co-authored-by: Truls Flatberg <[email protected]>
EnergyModelsX · Aug 20, 2024 · 5ed7c6d · 5ed7c6d · JulStraus · Aug 20, 2024
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diff --git a/NEWS.md b/NEWS.md
@@ -12,6 +12,7 @@
 
 * Updated minor issues in the documentation (docstrings, indices, and quick start).
 * Use dev version of EMB for examples when running as part of tests, solving [Issue #17](https://github.com/EnergyModelsX/EnergyModelsBase.jl/issues/17).
+* Naming of the total emission constraint to allow for updates in the coefficients in other packages.
 
 ## Version 0.7.0 (2024-05-24)
 

diff --git a/src/model.jl b/src/model.jl
@@ -272,8 +272,9 @@ function constraints_emissions(m, 𝒩, 𝒯, 𝒫, modeltype::EnergyModel)
     𝒯ᴵⁿᵛ = strategic_periods(𝒯)
 
     # Creation of the individual constraints.
-    @constraint(m, [t ∈ 𝒯, p ∈ 𝒫ᵉᵐ],
-        m[:emissions_total][t, p] == sum(m[:emissions_node][n, t, p] for n ∈ 𝒩ᵉᵐ)
+    @constraint(m, con_em_tot[t ∈ 𝒯, p ∈ 𝒫ᵉᵐ],
+        m[:emissions_total][t, p] ==
+            sum(m[:emissions_node][n, t, p] for n ∈ 𝒩ᵉᵐ)
     )
     @constraint(m, [t_inv ∈ 𝒯ᴵⁿᵛ, p ∈ 𝒫ᵉᵐ],
         m[:emissions_strategic][t_inv, p] ==