Cost estimation

To convert the costs between years, where $C$ is the cost, and $I$ is the price index for a given year:

$$C_X=C_B\frac{I_X}{I_B}$$

The cost-capacity relationship allows us to estimate the cost based on information we already know, where $Q$ is the capacity, and $M$ is the cost capacity factor ($M\in (0,1)$).

$$C_X=C_B{\left(\frac{Q_X}{Q_B}\right)}^M$$

Note that this relationship must have all costs in the same year. This is especially important when finding $M$.