ns"><span class="section-number-3">3.4.</span> Emissions costs and limits</h3>
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Emissions costs are applied in both whole-system and network NPV modes to anything within the objective which produces emissions. These are things for which you can set emissions factors.
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<p>
Emissions limits are hard constraints on the solution - if enabled, the optimisation will not be allowed to produce a result where emissions exceed the annual limit.
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<p>
Of