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Techno-economic analysis

Power utilities and industrial facilities are facing the complex challenge of upgrading and developing power systems  while assuring an optimal return on investment and long-term viability.
Eaton's CYME Techno-Economic analysis module facilitates the evaluation of the feasibility and the profitability of a project, based on the factual system model, leading to realistic planning in line with technical, service reliability and financial objectives. Whether planning maintenance, replacements, improvements or expansions to a power system, the module is intended to help electric utilities and large industries invest into that infrastructure by analyzing impacts of modifications made and the cost and gains they entail over the years.  

Techno-economic analysis module


For each study, costs can be associated to any modification to the power system model, whether it is the cost resulting from the installation or relocation of an asset or from a load transfer like a phase balancing operation. In addition to the asset cost, economic parameters such as operation and maintenance cost, salvage value and depreciation can be defined and taken into account by the analysis.

The reports creates present load flow results in terms of benefits following reduction in losses and mitigation of abnormal conditions. The economic results include an income statement, a cash flow statement and a capital budget. When used with the CYME Reliability Assessment module, mitigation valuation can be based on improvements of a single reliability index, or a combination of multiple indices.

The Techno-Economic analysis can be performed on a project created using the CYME Advanced Project Manager module. It allows the individual or collective analysis of mitigation projects that are planned for different moments in time. The integration of the two modules brings the analysis to another level by including the technical impacts of concurrent future approved projects, and by allowing a more detailed load growth that combines organic growth, active growth and load transfers.

Economic features

  • Economic settings such as the discount rate, the inflation rate and the tax rate are applied on all costs to determine the present value of future cash flows
  • Investment activities (i.e. the costs of the modifications) related to the corrective measures are compared to their economic revenues and gains
  • Analysis can be performed on a calculation period that considers an estimated or forecasted global or detailed load growth
  • Economic results include the Net Present Value (NPV), the Internal Rate of Return (IRR), the Return On Investment (ROI), the estimated payback period and estimated discounted payback period
  • The return on investment is calculated taking into account objectives such as losses reduction, mitigations of abnormal conditions and, an option, the improvement in reliability
  • Asset depreciation over the span of the analysis can be considered along with the possibility to consider the half-year rule and/or to include salvage value and tax


The technical results are available for a base case (i.e. prior to modifications) and for the study/project where the planned measures are applied, for easy comparison.

  • Technical results are presented per-year for the simulation period
  • Technical results used for valuation, i.e. system losses, abnormal conditions and/or reliability indices, are shown with their absolute value and as a reduction compared to the base case
  • Impact of the corrective measures on the power and energy losses (kW and kWh), on the under- and over-voltage conditions, on the overload condition and/or on the selected reliability indices are shown for each year
  • Modifications contained in the study/project for which costs have been defined are also tabulated
  • The economic information shown in the reports include:
    • An income statement (revenues and gains, expenses and losses) for the period simulated
    • A cash flow statement (operating activities, investing activities) for the period simulated
    • A capital budgeting report that gives an overview of the economic indicators such as the NPV, IRR, ROI and the payback period
    • The details of the depreciation calculations related to the figures printed in the income statement are also presented

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