Source code for oemof.tools.economics

# -*- coding: utf-8 -*-

"""Module to collect useful functions for economic calculation.
"""

__copyright__ = "oemof developer group"
__license__ = "GPLv3"


[docs]def annuity(capex, n, wacc): """Calculate the annuity. annuity = capex * (wacc * (1 + wacc) ** n) / ((1 + wacc) ** n - 1) Parameters ---------- capex : float Capital expenditure (NPV of investment) n : int Number of years that the investment is used (economic lifetime) wacc : float Weighted average cost of capital Returns ------- float : annuity """ return capex * (wacc * (1 + wacc) ** n) / ((1 + wacc) ** n - 1)