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added other equations
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matthieu-str committed Jan 17, 2025
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Expand Up @@ -171,19 +171,32 @@ magnitude, numerical stability is improved in the solving process.

## Equations specification
The following set of modelling equations should be included in ESM.
The environmental objective $LCIA_{tot}$ is defined as the sum of the impacts of the infrastructure, operation,
and resource parts, namely $LCIA_{infra}$, $LCIA_{op}$, and $LCIA_{res}$.
The environmental objective $\mathbf{LCIA_{tot}}$ is defined as the sum of the impacts of the infrastructure, operation,
and resource parts, namely $\mathbf{LCIA_{infra}}$, $\mathbf{LCIA_{op}}$, and $\mathbf{LCIA_{res}}$.
The infrastructure impact is derived from the normalized specific impact ($lcia^{norm}_{infra}$), which is computed
from the infrastructure LCI dataset. This value is then divided by the technology's lifetime in the ESM
($n_{ESM}$), and scaled with the technology's installed capacity ($F$). The operation and resource impacts are
($n_{ESM}$), and scaled with the technology's installed capacity ($\mathbf{F}$). The operation and resource impacts are
respectively derived from the operation and resource normalized specific impacts ($lcia^{norm}_{op}$ and
$lcia^{norm}_{res}$), which are respectively computed from the operation and resource LCI datasets, and scaled
with the annual energy production (F_t \cdot t_{op}$).
with the annual energy production (\mathbf{F_t} \times t_{op}$).

$$
LCIA_{\text{tot}}(k) = \sum_{j \in \text{TECH}} \left( LCIA_{\text{infra}}(j, k) + LCIA_{\text{op}}(j, k) \right) + \sum_{r \in \text{RES}} LCIA_{\text{res}}(r, k) \quad \forall k \in \text{ENV}
\mathbf{LCIA_{tot}}(k) = \sum_{j \in TECH} \left( \mathbf{LCIA_{infra}}(j, k) + \mathbf{LCIA_{op}}(j, k) \right) + \sum_{r \in RES} \mathbf{LCIA_{res}}(r, k) \quad \forall k \in ENV
$$

$$
\mathbf{LCIA_{infra}}(j, k) = lcia_{infra}^{norm}(j, k) \cdot \mathbf{F}(j) \cdot \frac{1}{n_{ESM}(j)} \quad \forall (j, k) \in TECH \times ENV
$$

$$
\mathbf{LCIA_{op}}(j, k) = lcia_{op}^{norm}(j, k) \cdot \sum_{t \in T} \mathbf{F_t}(j, t) \cdot t_{op}(t) \quad \forall (j, k) \in TECH \times ENV
$$

$$
\mathbf{LCIA_{res}}(r, k) = lcia_{res}^{norm}(r, k) \cdot \sum_{t \in T} \mathbf{F_t}(r, t) \cdot t_{op}(t) \quad \forall (r, k) \in RES \times ENV
$$


## Integrating ESM results in the LCI database
In ordre to update the LCI database with the ESM results, `mescal` overwrites the relevant LCI datasets,
i.e., LCI datasets that are in the sectoral and geographical scope of the ESM, such as markets for electricity, heat or
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